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  • overloaded stream insetion operator with a vector

    - by julz666
    hi, i'm trying to write an overloaded stream insertion operator for a class who's only member is a vector. i dont really know what i'm doing. (lets make that clear) it's a vector of "Points" which is a struct containing two doubles. i figure what i want is to insert user input (a bunch of doubles) into a stream that i then send to a modifier method? i keep working off other stream insertion examples such as... std::ostream& operator<< (std::ostream& o, Fred const& fred) { return o << fred.i_; } but when i try a similar..... istream & operator >> (istream &inStream, Polygon &vertStr) { inStream >> ws; inStream >> vertStr.vertices; return inStream; } i get an error "no match for operator etc etc. if i leave off the .vertices it compiles but i figure it's not right? (vertices is the name of my vector ) and even if it is right, i dont actually know what syntax to use in my driver to use it? also not %100 on what my modifier method needs to look like. here's my Polygon class //header #ifndef POLYGON_H #define POLYGON_H #include "Segment.h" #include <vector> class Polygon { friend std::istream & operator >> (std::istream &inStream, Polygon &vertStr); public: //Constructor Polygon(const Point &theVerts); //Default Constructor Polygon(); //Copy Constructor Polygon(const Polygon &polyCopy); //Accessor/Modifier methods inline std::vector<Point> getVector() const {return vertices;} //Return number of Vector elements inline int sizeOfVect() const {return (int) vertices.capacity();} //add Point elements to vector inline void setVertices(const Point &theVerts){vertices.push_back (theVerts);} private: std::vector<Point> vertices; }; #endif //Body using namespace std; #include "Polygon.h" // Constructor Polygon::Polygon(const Point &theVerts) { vertices.push_back (theVerts); } //Copy Constructor Polygon::Polygon(const Polygon &polyCopy) { vertices = polyCopy.vertices; } //Default Constructor Polygon::Polygon(){} istream & operator >> (istream &inStream, Polygon &vertStr) { inStream >> ws; inStream >> vertStr; return inStream; } any help greatly appreciated, sorry to be so vague, a lecturer has just kind of given us a brief example of stream insertion then left us on our own thanks. oh i realise there are probably many other problems that need fixing

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  • CodePlex Daily Summary for Wednesday, June 12, 2013

    CodePlex Daily Summary for Wednesday, June 12, 2013Popular ReleasesWeb Pages CMS: 0.5.0.5: Added empty media directoryWindows 8 App Desing Reference Template: Education Big Picture: EducationBigPicture: Download includes the following -> Source (C# and JS) -> Package -> Snapshots -> DocumentationModern UI for WPF: Modern UI 1.0.4: The ModernUI assembly including a demo app demonstrating the various features of Modern UI for WPF. Related downloads NuGet ModernUI for WPF is also available as NuGet package in the NuGet gallery, id: ModernUI.WPF Download Modern UI for WPF Templates A Visual Studio 2012 extension containing a collection of project and item templates for Modern UI for WPF. The extension includes the ModernUI.WPF NuGet package. DownloadToolbox for Dynamics CRM 2011: XrmToolBox (v1.2013.6.11): XrmToolbox improvement Add exception handling when loading plugins Updated information panel for displaying two lines of text Tools improvementMetadata Document Generator (v1.2013.6.10)New tool Web Resources Manager (v1.2013.6.11)Retrieve list of unused web resources Retrieve web resources from a solution All tools listAccess Checker (v1.2013.2.5) Attribute Bulk Updater (v1.2013.1.17) FetchXml Tester (v1.2013.3.4) Iconator (v1.2013.1.17) Metadata Document Generator (v1.2013.6.10) Privilege...Document.Editor: 2013.23: What's new for Document.Editor 2013.23: New Insert Emoticon support Improved Format support Minor Bug Fix's, improvements and speed upsChristoc's DotNetNuke Module Development Template: DotNetNuke 7 Project Templates V2.4 for VS2012: V2.4 - Release Date 6/10/2013 Items addressed in this 2.4 release Updated MSBuild Community Tasks reference to 1.4.0.61 Setting up your DotNetNuke Module Development Environment Installing Christoc's DotNetNuke Module Development Templates Customizing the latest DotNetNuke Module Development Project TemplatesLayered Architecture Sample for .NET: Leave Sample - June 2013 (for .NET 4.5): Thank You for downloading Layered Architecture Sample. Please read the accompanying README.txt file for setup and installation instructions. This is the first set of a series of revised samples that will be released to illustrate the layered architecture design pattern. This version is only supported on Visual Studio 2012. This samples illustrates the use of ASP.NET Web Forms, ASP.NET Model Binding, Windows Communications Foundation (WCF), Windows Workflow Foundation (WF) and Microsoft Ente...Papercut: Papercut 2013-6-10: Feature: Shows From, To, Date and Subject of Email. Feature: Async UI and loading spinner. Enhancement: Improved speed when loading large attachments. Enhancement: Decoupled SMTP server into secondary assembly. Enhancement: Upgraded to .NET v4. Fix: Messages lost when received very fast. Fix: Email encoding issues on display/Automatically detect message Encoding Installation Note:Installation is copy and paste. Incoming messages are written to the start-up directory of Papercut. If you do n...SFDL.NET: SFDL.NET v1.1.0.4: Changelog: Ciritical Bug Fixed : Downloading of Files not possibleMapWinGIS ActiveX Map and GIS Component: MapWinGIS v4.8.8 Release Candidate - 32 Bit: This is the first release candidate of MapWinGIS. Please test it thoroughly.MapWindow 4: MapWindow GIS v4.8.8 - Release Candidate - 32Bit: Download the release notes here: http://svn.mapwindow.org/svnroot/MapWindow4Dev/Bin/MapWindowNotes.rtfLINQ to Twitter: LINQ to Twitter v2.1.06: Supports .NET 3.5, .NET 4.0, .NET 4.5, Silverlight 4.0, Windows Phone 7.1, Windows Phone 8, Client Profile, Windows 8, and Windows Azure. 100% Twitter API coverage. Also supports Twitter API v1.1! Also on NuGet.VR Player: VR Player 0.3 ALPHA: New plugin system with individual folders TrackIR support Maya and 3ds max formats support Dual screen support Mono layouts (left and right) Cylinder height parameter Barel effect factor parameter Razer hydra filter parameter VRPN bug fixes UI improvements Performances improvements Stabilization and logging with Log4Net New default values base on users feedback CTRL key to open menuSimCityPak: SimCityPak 0.1.0.8: SimCityPak 0.1.0.8 New features: Import BMP color palettes for vehicles Import RASTER file (uncompressed 8.8.8.8 DDS files) View different channels of RASTER files or preview of all layers combined Find text in javascripts TGA viewer Ground textures added to lot editor Many additional identified instances and propertiesWsus Package Publisher: Release v1.2.1306.09: Add more verifications on certificate validation. WPP will not let user to try publishing an update until the certificate is valid. Add certificate expiration date on the 'About' form. Filter Approbation to avoid a user to try to approve an update for uninstallation when the update do not support uninstallation. Add the server and console version on the 'About' form. WPP will not let user to publish an update until the server and console are not at the same level. WPP do not let user ...AJAX Control Toolkit: June 2013 Release: AJAX Control Toolkit Release Notes - June 2013 Release Version 7.0607June 2013 release of the AJAX Control Toolkit. AJAX Control Toolkit .NET 4.5 – AJAX Control Toolkit for .NET 4.5 and sample site (Recommended). AJAX Control Toolkit .NET 4 – AJAX Control Toolkit for .NET 4 and sample site (Recommended). AJAX Control Toolkit .NET 3.5 – AJAX Control Toolkit for .NET 3.5 and sample site (Recommended). Notes: - Instructions for using the AJAX Control Toolkit with ASP.NET 4.5 can be found at...Rawr: Rawr 5.2.1: This is the Downloadable WPF version of Rawr!For web-based version see http://elitistjerks.com/rawr.php You can find the version notes at: http://rawr.codeplex.com/wikipage?title=VersionNotes Rawr Addon (NOT UPDATED YET FOR MOP)We now have a Rawr Official Addon for in-game exporting and importing of character data hosted on Curse. The Addon does not perform calculations like Rawr, it simply shows your exported Rawr data in wow tooltips and lets you export your character to Rawr (including ba...VG-Ripper & PG-Ripper: PG-Ripper 1.4.13: changes NEW: Added Support for "ImageJumbo.com" links FIXED: Ripping of Threads with multiple pagesJson.NET: Json.NET 5.0 Release 6: New feature - Added serialized/deserialized JSON to verbose tracing New feature - Added support for using type name handling with ISerializable content Fix - Fixed not using default serializer settings with primitive values and JToken.ToObject Fix - Fixed error writing BigIntegers with JsonWriter.WriteToken Fix - Fixed serializing and deserializing flag enums with EnumMember attribute Fix - Fixed error deserializing interfaces with a valid type converter Fix - Fixed error deser...Biller: Biller 1.49: This release fixes company sales statisticsNew Projectsapiviewer: Documentation viewer for your service API.ArgusLib: Set of libraries I use in most of my projects.arwani: this is armani project.Blue Mercs Data Gateway: The Data Gateway is an open source project which simplifies coding fluently database SQL statements, stored procedure, connections and transactions.Convert Hashtable Rows into DataTable Columns in C#: Simplest way to convert a Hashtable into a DataTable with all the Hashtable rows converted into DataTable columns.everynet: EveryNet is an internet service provider servicing homes Fraktalysator: Software to visualize fractals such as the Mandelbrot Set. Still in early development state.Free BarCode API for .NET: Freee BarCode API for .NETGraphic filters in WPF: FiltersGrid Plugin: Grid Plugin , Turn your <table> into a fully functional price grid.mediamonitor: this is mediamonitor project.MyCodingStuffs: This solution includes C#, WCF, MVC4.0, ASP.net libraries.OpenErp .Net Connector: Access to OpenErp from .NetPhong and Flat shading: Phong shadingPixel Replacer: The Pixel Replacer is a simple library for replacing pixel colors with a new color, by setting a filter rule.plainetl in vb.net: a one db to another db transform, threaded, commandline tool, ... initially created to get a flat-File db (FoxPro) into a mssql.Programming in HTML5 with JavaScript and CSS3: Contains material developed while visiting a Microsoft course for the MCSD exam 70-480ProjectLinker2012: This tool helps to automatically create and maintain links from a source project to a target project to share code that is common to Silverlight and WPF.SALDERA Project: SALDERA TEST Project Summary Mire lesz ez jó? Majd Kiderül.TCPMessageServer: Simple TCP Client/Server used to pass an object between client and serverThats-Me Dot Net API: Thats-Me Dot Net API is a library which implements the Thats-Me.ch API for the Dot Net Framework.T-Sql Code Documentor: Document T-SQL Code and Extract Comments for all objects in a database.Windows 8 App Design Reference Template: Measurement: Measurement template will help if you want to build an app which addresses Mass/Weight, Distance/Length, Capacity/Volume etc. measurement placeholders.Windows 8 App Design Reference Template: Weather Clock: Weather Clock Template will help if you want to build an app which has the features to add Current/Previous day temperatures and add cities for coverage. Windows 8 App Desing Reference Template: Education Big Picture: Education Big Picture Template will help if you want to build an app which has an option for showcasing campus details, courses, student life etc dataWinodws 8 App Design Reference Template: Social Feed: Social Feed template will help if you want to build an app which has the Messaging, Facebook, twitter feeds sections. WP7FlacPlayer: Implemented JFlacLib in C# A simple player to play flac in windows phone system

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  • Unnecessary Java context switches

    - by Paul Morrison
    I have a network of Java Threads (Flow-Based Programming) communicating via fixed-capacity channels - running under WindowsXP. What we expected, based on our experience with "green" threads (non-preemptive), would be that threads would switch context less often (thus reducing CPU time) if the channels were made bigger. However, we found that increasing channel size does not make any difference to the run time. What seems to be happening is that Java decides to switch threads even though channels aren't full or empty (i.e. even though a thread doesn't have to suspend), which costs CPU time for no apparent advantage. Also changing Thread priorities doesn't make any observable difference. My question is whether there is some way of persuading Java not to make unnecessary context switches, but hold off switching until it is really necessary to switch threads - is there some way of changing Java's dispatching logic? Or is it reacting to something I didn't pay attention to?! Or are there other asynchronism mechanisms, e.g. Thread factories, Runnable(s), maybe even daemons (!). The answer appears to be non-obvious, as so far none of my correspondents has come up with an answer (including most recently two CS profs). Or maybe I'm missing something that's so obvious that people can't imagine my not knowing it... I've added the send and receive code here - not very elegant, but it seems to work...;-) In case you are wondering, I thought the goLock logic in 'send' might be causing the problem, but removing it temporarily didn't make any difference. I have added the code for send and receive... public synchronized Packet receive() { if (isDrained()) { return null; } while (isEmpty()) { try { wait(); } catch (InterruptedException e) { close(); return null; } if (isDrained()) { return null; } } if (isDrained()) { return null; } if (isFull()) { notifyAll(); // notify other components waiting to send } Packet packet = array[receivePtr]; array[receivePtr] = null; receivePtr = (receivePtr + 1) % array.length; //notifyAll(); // only needed if it was full usedSlots--; packet.setOwner(receiver); if (null == packet.getContent()) { traceFuncs("Received null packet"); } else { traceFuncs("Received: " + packet.toString()); } return packet; } synchronized boolean send(final Packet packet, final OutputPort op) { sender = op.sender; if (isClosed()) { return false; } while (isFull()) { try { wait(); } catch (InterruptedException e) { indicateOneSenderClosed(); return false; } sender = op.sender; } if (isClosed()) { return false; } try { receiver.goLock.lockInterruptibly(); } catch (InterruptedException ex) { return false; } try { packet.clearOwner(); array[sendPtr] = packet; sendPtr = (sendPtr + 1) % array.length; usedSlots++; // move this to here if (receiver.getStatus() == StatusValues.DORMANT || receiver.getStatus() == StatusValues.NOT_STARTED) { receiver.activate(); // start or wake up if necessary } else { notifyAll(); // notify receiver // other components waiting to send to this connection may also get // notified, // but this is handled by while statement } sender = null; Component.network.active = true; } finally { receiver.goLock.unlock(); } return true; }

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  • CodePlex Daily Summary for Saturday, May 17, 2014

    CodePlex Daily Summary for Saturday, May 17, 2014Popular ReleasesSEToolbox: SEToolbox 01.030.008 Release 1: Fixed cube editor failing to apply color to cubes. Added to cube editor, replace cube dialog, and Build Percent dialog. Corrected for hidden asteroid ore, allowing rare ore to show when importing an asteroid, or converting a 3d model to an asteroid (still appears to be limitations on rare ore in small asteroids). Allowed ore selection to Asteroid file import. (Can copy/import and convert existing asteroid to another ore). Added progress bars to common long running operations. Fixed ...Better Robocopy GUI: Command Line GUI for Robocopy: Better Robocopy GUI had become the primary plugin in Command Line GUI built on .NET 4CTI Text Encryption: CTI Text Encryption 5.3: Change Log: - Remove read only behavior of text area of encrypted text. - Minor UI functionality update.Mini SQL Query: Mini SQL Query (1.0.71.456): Minor fixes and template corrections.QuickMon: Version 3.10: Adding the ability to see 'history' of Collector states (including details of errors or warnings at that time). The history size is configurable (default is switched off) and the Windows Service completely ignores keeping history (no UI or user to access it anyway). The Collector stats window now displays this history plus multiple collector stats windows can be opened at the same time. Additionally fixed a bug in the event log collector that reported an 'Error' state when an 'out of bounds' ...TFS Planning and Disaster Recovery Avoidance Guide: v1.4.BETA - TFS, DR and Azure IaaS Planning Guides: Welcome to the TFS Planning and DR Avoidance Guidance What is new? A new crisper, more compact style, which is easier to consume on multiple devices without sacrificing any content. Also included are the new TFS on Azure IaaS guide and supplementary guides. Note Capacity planning workbook and posters are included in the Everything Zip package. Quality-Bar Detail Documentation has been reviewed by Visual Studio ALM Rangers Documentation has been through an independent technical review ...WinAudit: WinAudit Freeware v3.0: WinAudit.exe v3.0 MD5: 88750CCF49FF7418199B2645755830FA Known Issues: 1. Report creation can be very slow when right-to-left (Hebrew) characters are present. 2. Emsisoft Anti-Malware may stop and/or quarantine WinAudit. This happens when WinAudit attempts to obtain a list if running programmes. You will need to set an exception rule in Emsisoft to allow WinAudit to run.Aspose for Sitefinity: Sitefinity Export to Microsoft Word and PDF: Aspose Sitefinity Content Export Add-on allow users to export online content into Microsoft Word or Adobe Acrobat PDF document using Aspose.Words. This Add-on makes it very simple and easy to have an offline copy of your favorite online content for editing, sharing and printing etc. in popular Microsoft Word Doc/Docx or PDF format. It adds simple Export to Word and Export to Pdf buttons at any desired location on the page and clicking the button dynamically exports the content of the page int...MVCwCMS - ASP.NET MVC CMS: MVCwCMS 2.2.2: Updated CKFinder config. For the installation instructions visit the documentation page: https://mvcwcms.codeplex.com/documentationTerraMap (Terraria World Map Viewer): TerraMap 1.0.4: Added support for the new Terraria v1.2.4 update. New items, walls, and tiles Fixed Issue 35206: Hightlight/Find doesn't work for Demon Altars Fixed finding Demon Hearts/Shadow Orbs Added ability to find Enchanted Swords (in the stone) and Water Bolt books Fixed installer not uninstalling older versions The setup file will make sure .NET 4 is installed, install TerraMap, create desktop and start menu shortcuts, add a .wld file association, and launch TerraMap. If you prefer the zip ...WPF Localization Extension: v2.2.1: Issue #9277 Issue #9292 Issue #9311 Issue #9312 Issue #9313 Issue #9314CtrlAltStudio Viewer: CtrlAltStudio Viewer 1.2.1.41167 Release: This release of the CtrlAltStudio Viewer includes the following significant features: Oculus Rift support. Stereoscopic 3D display support. Variable walking / flying speed. Xbox 360 Controller support. Kinect for Windows support. Based on Firestorm viewer 4.6.5 codebase. For more details, see the release notes linked to below. Release notes: http://ctrlaltstudio.com/viewer/release-notes/1-2-1-41167-release Support info: http://ctrlaltstudio.com/viewer/support Privacy policy: http:/...ParserIO: ParserIO v1.0.0.3: Fixed some bug about AIM Symbology IDSSIS SFTP Task Control Flow Component: SSIS SFTP v2 for SQL Server 2012: Please report you to the Documentation page for installation instructions.Grade Calculator For BTEC First Diploma in IT level 2: Grade Calculator For BTEC First Diploma in IT: Grade Calculator For BTEC First Diploma in IT level 2Spaghetti CMS: Version 1.50: New: Backend with new design, bootstrap integration New: Patch function for assigning themes, master page files to pages New: Wysiwyg editor (possible to link css file against editor) and filemanager New: Support time triggered content New: Edit css, js, skin, master file within the CMS New: Dynamically add controls to the CMS New: Change password for an user (usermanagement) New: Localize CMS In the near future we will open our new website for documentation and demo. http://...ExtJS based ASP.NET Controls: FineUI v4.0.6: FineUI(???) ?? ExtJS ??? ASP.NET ??? FineUI??? ?? No JavaScript,No CSS,No UpdatePanel,No ViewState,No WebServices ??????? ?????? IE 8.0+、Chrome、Firefox、Opera、Safari ???? Apache License v2.0 ?:ExtJS ?? GPL v3 ?????(http://www.sencha.com/license) ???? ??:http://fineui.com/ ??:http://fineui.com/bbs/ ??:http://fineui.com/demo/ ??:http://fineui.com/doc/ ??:http://fineui.codeplex.com/ FineUI ???? ExtJS ????????,???? ExtJS ?,?????: 1. ????? FineUI ? ExtJS ? http://fineui.com/bbs/forum.ph...Office App Model Samples: Office App Model Samples v2.0: Office App Model Samples v2.0Readable Passphrase Generator: KeePass Plugin 0.13.0: Version 0.13.0 Added "mutators" which add uppercase and numbers to passphrases (to help complying with upper, lower, number complexity rules). Additional API methods which help consuming the generator from 3rd party c# projects. 13,160 words in the default dictionary (~600 more than previous release).CS-Script for Notepad++ (C# intellisense and code execution): Release v1.0.25.0: Release v1.0.25.0 MemberInfo/MethodInfo popup is now positioned properly to fit the screen In MethodInfo popup method signatures are word-wrapped Implemented Debug text value visualizer Pining sub-values from Watch PanelNew ProjectsAllowing Multiple Attachments for SharePoint 2013 Custom Lists: This code supports basic upload multiple attachments to Custom List item and should be able to attach the existing file name override.Azure File Depot: The Azure File Depot is an effort to provide sample implementations of various tasks related to using blob storage to move files around.CRM Customization Comparer - 2011 and 2013: Compare your Dynamics CRM Solution files via XML Diff. Graphical interface to quickly assess changes. Features: - Graphical UI - Supports CRM 2011 and 2013ElectrosLtd DSA Assignment: This program was created in order to make use of models views and controllersGPS Tracking: A GPS Tracker App.OOP-2112110195: mon:OOP ten:mai duy tanPowerShell Task Control Flow Component for SSIS: Launch PowerShell Script/Commands from SSIS - An another Custom Control Flow Component with the new "PowerShell Task" (currently targets PowerShell 3.0)Quan ly giai bong da: Qu?n lý gi?i bóng dá ngo?i hang AnhSharePoint PDF OpenDocument: SharePoint PDF Content type (Sandbox solution) One OpenDocuments Com+ server for PDF content Adobe software not included but required.Useful Classes: Useful Classes is a DLL that I have written to include a ton of features from one file within your project. ??????-??????【??】??????????: ??????????????,??????????????????,????????,??????????????、????。 ??????-??????【??】??????????: ????????????????????,?????????。????????????,??????,????,????,?????????! ????-????【??】????????: ????????????300??,????????、???????、????、????????、?????,??????:????,????,???????! ?????-?????【??】?????????: ?????????????????????,?? ???????,??????? ???,????? , ???? ?????,?????????????。 ?????-?????【??】?????????: ???????????? , ???? ?????,??????????????,????,????,??????。 ??????-??????【??】??????????: ????????????????,????(??)????????,??????,????,???,????,???????! ??????-??????【??】??????????: ?????????????????????,????????,????????,????,????,??????,???????! ?????-?????【??】?????????: ?????????????????,?????,???,???、???、?????,???,?????,???????????????. ?????-?????【??】?????????: ???????????:???????,????,????,????,??????????,????,????,????。??????... ?????-?????【??】?????????: ??????????????????????,?????、???、????,????,???、???、???、???、???,????,?????! ??????-??????【??】??????????: ????????????、??、???????????,??????,????????,??????????????????...????。 ????-????【??】????????: ??????????????????????,?????????,??????????,????????,?????! ????-????【??】????????: ?????????????、???????,?????????,???????????????,?????????????。 ?????-?????【??】?????????: ?????????????、?????????,?????????,????,????????,????????????????! ?????-?????【??】?????????: ?????????????????,????????,??????????????,?????????,????,????,??????。

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  • Of transactions and Mongo

    - by Nuri Halperin
    Originally posted on: http://geekswithblogs.net/nuri/archive/2014/05/20/of-transactions-and-mongo-again.aspxWhat's the first thing you hear about NoSQL databases? That they lose your data? That there's no transactions? No joins? No hope for "real" applications? Well, you *should* be wondering whether a certain of database is the right one for your job. But if you do so, you should be wondering that about "traditional" databases as well! In the spirit of exploration let's take a look at a common challenge: You are a bank. You have customers with accounts. Customer A wants to pay B. You want to allow that only if A can cover the amount being transferred. Let's looks at the problem without any context of any database engine in mind. What would you do? How would you ensure that the amount transfer is done "properly"? Would you prevent a "transaction" from taking place unless A can cover the amount? There are several options: Prevent any change to A's account while the transfer is taking place. That boils down to locking. Apply the change, and allow A's balance to go below zero. Charge person A some interest on the negative balance. Not friendly, but certainly a choice. Don't do either. Options 1 and 2 are difficult to attain in the NoSQL world. Mongo won't save you headaches here either. Option 3 looks a bit harsh. But here's where this can go: ledger. See, and account doesn't need to be represented by a single row in a table of all accounts with only the current balance on it. More often than not, accounting systems use ledgers. And entries in ledgers - as it turns out – don't actually get updated. Once a ledger entry is written, it is not removed or altered. A transaction is represented by an entry in the ledger stating and amount withdrawn from A's account and an entry in the ledger stating an addition of said amount to B's account. For sake of space-saving, that entry in the ledger can happen using one entry. Think {Timestamp, FromAccountId, ToAccountId, Amount}. The implication of the original question – "how do you enforce non-negative balance rule" then boils down to: Insert entry in ledger Run validation of recent entries Insert reverse entry to roll back transaction if validation failed. What is validation? Sum up the transactions that A's account has (all deposits and debits), and ensure the balance is positive. For sake of efficiency, one can roll up transactions and "close the book" on transactions with a pseudo entry stating balance as of midnight or something. This lets you avoid doing math on the fly on too many transactions. You simply run from the latest "approved balance" marker to date. But that's an optimization, and premature optimizations are the root of (some? most?) evil.. Back to some nagging questions though: "But mongo is only eventually consistent!" Well, yes, kind of. It's not actually true that Mongo has not transactions. It would be more descriptive to say that Mongo's transaction scope is a single document in a single collection. A write to a Mongo document happens completely or not at all. So although it is true that you can't update more than one documents "at the same time" under a "transaction" umbrella as an atomic update, it is NOT true that there' is no isolation. So a competition between two concurrent updates is completely coherent and the writes will be serialized. They will not scribble on the same document at the same time. In our case - in choosing a ledger approach - we're not even trying to "update" a document, we're simply adding a document to a collection. So there goes the "no transaction" issue. Now let's turn our attention to consistency. What you should know about mongo is that at any given moment, only on member of a replica set is writable. This means that the writable instance in a set of replicated instances always has "the truth". There could be a replication lag such that a reader going to one of the replicas still sees "old" state of a collection or document. But in our ledger case, things fall nicely into place: Run your validation against the writable instance. It is guaranteed to have a ledger either with (after) or without (before) the ledger entry got written. No funky states. Again, the ledger writing *adds* a document, so there's no inconsistent document state to be had either way. Next, we might worry about data loss. Here, mongo offers several write-concerns. Write-concern in Mongo is a mode that marshals how uptight you want the db engine to be about actually persisting a document write to disk before it reports to the application that it is "done". The most volatile, is to say you don't care. In that case, mongo would just accept your write command and say back "thanks" with no guarantee of persistence. If the server loses power at the wrong moment, it may have said "ok" but actually no written the data to disk. That's kind of bad. Don't do that with data you care about. It may be good for votes on a pole regarding how cute a furry animal is, but not so good for business. There are several other write-concerns varying from flushing the write to the disk of the writable instance, flushing to disk on several members of the replica set, a majority of the replica set or all of the members of a replica set. The former choice is the quickest, as no network coordination is required besides the main writable instance. The others impose extra network and time cost. Depending on your tolerance for latency and read-lag, you will face a choice of what works for you. It's really important to understand that no data loss occurs once a document is flushed to an instance. The record is on disk at that point. From that point on, backup strategies and disaster recovery are your worry, not loss of power to the writable machine. This scenario is not different from a relational database at that point. Where does this leave us? Oh, yes. Eventual consistency. By now, we ensured that the "source of truth" instance has the correct data, persisted and coherent. But because of lag, the app may have gone to the writable instance, performed the update and then gone to a replica and looked at the ledger there before the transaction replicated. Here are 2 options to deal with this. Similar to write concerns, mongo support read preferences. An app may choose to read only from the writable instance. This is not an awesome choice to make for every ready, because it just burdens the one instance, and doesn't make use of the other read-only servers. But this choice can be made on a query by query basis. So for the app that our person A is using, we can have person A issue the transfer command to B, and then if that same app is going to immediately as "are we there yet?" we'll query that same writable instance. But B and anyone else in the world can just chill and read from the read-only instance. They have no basis to expect that the ledger has just been written to. So as far as they know, the transaction hasn't happened until they see it appear later. We can further relax the demand by creating application UI that reacts to a write command with "thank you, we will post it shortly" instead of "thank you, we just did everything and here's the new balance". This is a very powerful thing. UI design for highly scalable systems can't insist that the all databases be locked just to paint an "all done" on screen. People understand. They were trained by many online businesses already that your placing of an order does not mean that your product is already outside your door waiting (yes, I know, large retailers are working on it... but were' not there yet). The second thing we can do, is add some artificial delay to a transaction's visibility on the ledger. The way that works is simply adding some logic such that the query against the ledger never nets a transaction for customers newer than say 15 minutes and who's validation flag is not set. This buys us time 2 ways: Replication can catch up to all instances by then, and validation rules can run and determine if this transaction should be "negated" with a compensating transaction. In case we do need to "roll back" the transaction, the backend system can place the timestamp of the compensating transaction at the exact same time or 1ms after the original one. Effectively, once A or B visits their ledger, both transactions would be visible and the overall balance "as of now" would reflect no change.  The 2 transactions (attempted/ reverted) would be visible , since we do actually account for the attempt. Hold on a second. There's a hole in the story: what if several transfers from A to some accounts are registered, and 2 independent validators attempt to compute the balance concurrently? Is there a chance that both would conclude non-sufficient-funds even though rolling back transaction 100 would free up enough for transaction 117 (some random later transaction)? Yes. there is that chance. But the integrity of the business rule is not compromised, since the prime rule is don't dispense money you don't have. To minimize or eliminate this scenario, we can also assign a single validation process per origin account. This may seem non-scalable, but it can easily be done as a "sharded" distribution. Say we have 11 validation threads (or processing nodes etc.). We divide the account number space such that each validator is exclusively responsible for a certain range of account numbers. Sounds cunningly similar to Mongo's sharding strategy, doesn't it? Each validator then works in isolation. More capacity needed? Chop the account space into more chunks. So where  are we now with the nagging questions? "No joins": Huh? What are those for? "No transactions": You mean no cross-collection and no cross-document transactions? Granted - but don't always need them either. "No hope for real applications": well... There are more issues and edge cases to slog through, I'm sure. But hopefully this gives you some ideas of how to solve common problems without distributed locking and relational databases. But then again, you can choose relational databases if they suit your problem.

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  • Windows Form hangs when running threads

    - by Benjamin Ortuzar
    JI have written a .NET C# Windows Form app in Visual Studio 2008 that uses a Semaphore to run multiple jobs as threads when the Start button is pressed. It’s experiencing an issue where the Form goes into a comma after being run for 40 minutes or more. The log files indicate that the current jobs complete, it picks a new job from the list, and there it hangs. I have noticed that the Windows Form becomes unresponsive when this happens. The form is running in its own thread. This is a sample of the code I am using: protected void ProcessJobsWithStatus (Status status) { int maxJobThreads = Convert.ToInt32(ConfigurationManager.AppSettings["MaxJobThreads"]); Semaphore semaphore = new Semaphore(maxJobThreads, maxJobThreads); // Available=3; Capacity=3 int threadTimeOut = Convert.ToInt32(ConfigurationManager.AppSettings["ThreadSemaphoreWait"]);//in Seconds //gets a list of jobs from a DB Query. List<Job> jobList = jobQueue.GetJobsWithStatus(status); //we need to create a list of threads to check if they all have stopped. List<Thread> threadList = new List<Thread>(); if (jobList.Count > 0) { foreach (Job job in jobList) { logger.DebugFormat("Waiting green light for JobId: [{0}]", job.JobId.ToString()); if (!semaphore.WaitOne(threadTimeOut * 1000)) { logger.ErrorFormat("Semaphore Timeout. A thread did NOT complete in time[{0} seconds]. JobId: [{1}] will start", threadTimeOut, job.JobId.ToString()); } logger.DebugFormat("Acquired green light for JobId: [{0}]", job.JobId.ToString()); // Only N threads can get here at once job.semaphore = semaphore; ThreadStart threadStart = new ThreadStart(job.Process); Thread thread = new Thread(threadStart); thread.Name = job.JobId.ToString(); threadList.Add(thread); thread.Start(); } logger.Info("Waiting for all threads to complete"); //check that all threads have completed. foreach (Thread thread in threadList) { logger.DebugFormat("About to join thread(jobId): {0}", thread.Name); if (!thread.Join(threadTimeOut * 1000)) { logger.ErrorFormat("Thread did NOT complete in time[{0} seconds]. JobId: [{1}]", threadTimeOut, thread.Name); } else { logger.DebugFormat("Thread did complete in time. JobId: [{0}]", thread.Name); } } } logger.InfoFormat("Finished Processing Jobs in Queue with status [{0}]...", status); } //form methods private void button1_Click(object sender, EventArgs e) { buttonStop.Enabled = true; buttonStart.Enabled = false; ThreadStart threadStart = new ThreadStart(DoWork); workerThread = new Thread(threadStart); serviceStarted = true; workerThread.Start(); } private void DoWork() { EmailAlert emailAlert = new EmailAlert (); // start an endless loop; loop will abort only when "serviceStarted" flag = false while (serviceStarted) { emailAlert.ProcessJobsWithStatus(0); // yield if (serviceStarted) { Thread.Sleep(new TimeSpan(0, 0, 1)); } } // time to end the thread Thread.CurrentThread.Abort(); } //job.process() public void Process() { try { //sets the status, DateTimeStarted, and the processId this.UpdateStatus(Status.InProgress); //do something logger.Debug("Updating Status to [Completed]"); //hits, status,DateFinished this.UpdateStatus(Status.Completed); } catch (Exception e) { logger.Error("Exception: " + e.Message); this.UpdateStatus(Status.Error); } finally { logger.Debug("Relasing semaphore"); semaphore.Release(); } I have tried to log what I can into a file to detect where the problem is happening, but so far I haven't been able to identify where this happens. Losing control of the Windows Form makes me think that this has nothing to do with processing the jobs. Any ideas?

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  • How can I disable 'output escaping' in minidom

    - by William
    I'm trying to build an xml document from scratch using xml.dom.minidom. Everything was going well until I tried to make a text node with a ® (Registered Trademark) symbol in. My objective is for when I finally hit print mydoc.toxml() this particular node will actually contain a ® symbol. First I tried: import xml.dom.minidom as mdom data = '®' which gives the rather obvious error of: File "C:\src\python\HTMLGen\test2.py", line 3 SyntaxError: Non-ASCII character '\xae' in file C:\src\python\HTMLGen\test2.py on line 3, but no encoding declared; see http://www.python.or g/peps/pep-0263.html for details I have of course also tried changing the encoding of my python script to 'utf-8' using the opening line comment method, but this didn't help. So I thought import xml.dom.minidom as mdom data = '&#174;' #Both accepted xml encodings for registered trademark data = '&reg;' text = mdom.Text() text.data = data print data print text.toxml() But because when I print text.toxml(), the ampersands are being escaped, I get this output: &reg; &amp;reg; My question is, does anybody know of a way that I can force the ampersands not to be escaped in the output, so that I can have my special character reference carry through to the XML document? Basically, for this node, I want print text.toxml() to produce output of &reg; or &#174; in a happy and cooperative way! EDIT 1: By the way, if minidom actually doesn't have this capacity, I am perfectly happy using another module that you can recommend which does. EDIT 2: As Hugh suggested, I tried using data = u'®' (while also using data # -*- coding: utf-8 -*- Python source tags). This almost helped in the sense that it actually caused the ® symbol itself to be outputted to my xml. This is actually not the result I am looking for. As you may have guessed by now (and perhaps I should have specified earlier) this xml document happens to be an HTML page, which needs to work in a browser. So having ® in the document ends up causing rubbish in the browser (® to be precise!). I also tried: data = unichr(174) text.data = data.encode('ascii','xmlcharrefreplace') print text.toxml() But of course this lead to the same origional problem where all that happens is the ampersand gets escaped by .toxml(). My ideal scenario would be some way of escaping the ampersand so that the XML printing function won't "escape" it on my behalf for the document (in other words, achieving my original goal of having &reg; or &#174; appear in the document). Seems like soon I'm going to have to resort to regular expressions! EDIT 2a: Or perhaps not. Seems like getting my html meta information correct <META http-equiv="Content-Type" Content="text/html; charset=UTF-8"> could help, but I'm not sure yet how this fits in with the xml structure...

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  • CodePlex Daily Summary for Sunday, May 18, 2014

    CodePlex Daily Summary for Sunday, May 18, 2014Popular ReleasesClosedXML - The easy way to OpenXML: ClosedXML 0.70.0: A lot of fixes. See history.TBox - tool to make developer's life easier.: TBox 1.29: Bug fixing. Add LocalizationTool pluginYAXLib: Yet Another XML Serialization Library for the .NET Framework: YAXLib 2.13: Fixed a bug and added unit tests related to serializing path like aliases with one letter (e.g., './B'). Thanks go to CodeProject user B.O.B. for reporting this bug. Added `Bin/*.dll.mdb` to `.gitignore`. Fixed the issue with Indexer properties. Indexers must not be serialized/deserialized. YAXLib will ignore delegate (callback/function pointer) properties, so that the exception upon serializing them is prevented. Significant improve in cycling object reference detection Self Referr...SFDL.NET: SFDL.NET (2.2.9.2): Changelog: Neues Icon Xup.in CnL Plugin BugfixSEToolbox: SEToolbox 01.030.008 Release 1: Fixed cube editor failing to apply color to cubes. Added to cube editor, replace cube dialog, and Build Percent dialog. Corrected for hidden asteroid ore, allowing rare ore to show when importing an asteroid, or converting a 3d model to an asteroid (still appears to be limitations on rare ore in small asteroids). Allowed ore selection to Asteroid file import. (Can copy/import and convert existing asteroid to another ore). Added progress bars to common long running operations. Fixed ...Better Robocopy GUI: Command Line GUI for Robocopy: Better Robocopy GUI had become the primary plugin in Command Line GUI built on .NET 4Mini SQL Query: Mini SQL Query (1.0.71.456): Minor fixes and template corrections.Visual Studio Settings Switcher: Settings Switcher 1.1: Settings Switcher is compatible with Visual Studio 2012 and Visual Studio 2013. Express editions are not supported. NewFull support for Visual Studio 2013. Solution Settings Files (see Documentation for details.) Bug fixes and general usability improvements. There are two ways to install Settings Switcher: DOWNLOAD FROM CODEPLEXDownload the installer (.vsix) from the link above. Close all instances of Visual Studio. Double-click the .vsix file to install Settings Switcher. DOWNLOA...SharePoint Online Automation Cmdlets: Apps, Solutions and Permissions: Solutions can now be activated/deactivated/updated :-) See documentation for examples. Added Add-SPOApp and Install-SPOApp for uploading and activating apps on non-developer site collections. Also adding groups and permission levels has been included. Install Instructions Install the SharePoint Online Client components. Download and run the MSI file from the downloads section.TFS Planning and Disaster Recovery Avoidance Guide: v1.4.BETA - TFS, DR and Azure IaaS Planning Guides: Welcome to the TFS Planning and DR Avoidance Guidance What is new? A new crisper, more compact style, which is easier to consume on multiple devices without sacrificing any content. Also included are the new TFS on Azure IaaS guide and supplementary guides. Note Capacity planning workbook and posters are included in the Everything Zip package. Quality-Bar Detail Documentation has been reviewed by Visual Studio ALM Rangers Documentation has been through an independent technical review ...CRM Web API Lead Capture Example: CRM Web API Lead Capture Example: Sample Visual Studio 2013 project that provides an example of how you could use Web API and Microsoft Azure (could be deployed anywhere) to capture simple HTML form data into Dynamics CRM without directly having to integrate a .NET component.MB Tools: MDT Monitor Tool v1.4: This tool is used to connect to an MDT 2013 Monitor Webservice. The purpose is to provide an alternative to the MDT Deployment Workbench. Update: New in v1.4: Fixed bug where Dart Remote Viewer didnt work Option to show client local time instead of UTC, edit config.xml to enable/disable New in v1.2: Fixed Dart Remote Viewer not connection to full ip Issue: 1222 New in v1.1: Added timers for autorefresh of webservice info Added some better errorchecking and cleaned up the code a bit ...WinAudit: WinAudit Freeware v3.0: WinAudit.exe v3.0 MD5: 88750CCF49FF7418199B2645755830FA Known Issues: 1. Report creation can be very slow when right-to-left (Hebrew) characters are present. 2. Emsisoft Anti-Malware may stop and/or quarantine WinAudit. This happens when WinAudit attempts to obtain a list if running programmes. You will need to set an exception rule in Emsisoft to allow WinAudit to run.TerraMap (Terraria World Map Viewer): TerraMap 1.0.4: Added support for the new Terraria v1.2.4 update. New items, walls, and tiles Fixed Issue 35206: Hightlight/Find doesn't work for Demon Altars Fixed finding Demon Hearts/Shadow Orbs Added ability to find Enchanted Swords (in the stone) and Water Bolt books Fixed installer not uninstalling older versions The setup file will make sure .NET 4 is installed, install TerraMap, create desktop and start menu shortcuts, add a .wld file association, and launch TerraMap. If you prefer the zip ...Amqp.Net Lite: 0.1: This is the Alpha-quality release of the AMQP.Net Lite library.TSS.MSR: TSS.MSR v1.1: MSR's TPM2.0 access libraries and sample applications.WPF Localization Extension: v2.2.1: Issue #9277 Issue #9292 Issue #9311 Issue #9312 Issue #9313 Issue #9314Hime Parser Generator: Hime Parser Generator v1.0.0: This releases the stable version of the Hime parser generator. This release contains many bugfixes and performance enhancement. It also provides a clean API for the manipulation and debugging of context-free grammars.CtrlAltStudio Viewer: CtrlAltStudio Viewer 1.2.1.41167 Release: This release of the CtrlAltStudio Viewer includes the following significant features: Oculus Rift support. Stereoscopic 3D display support. Variable walking / flying speed. Xbox 360 Controller support. Kinect for Windows support. Based on Firestorm viewer 4.6.5 codebase. For more details, see the release notes linked to below. Release notes: http://ctrlaltstudio.com/viewer/release-notes/1-2-1-41167-release Support info: http://ctrlaltstudio.com/viewer/support Privacy policy: http:/...ExtJS based ASP.NET Controls: FineUI v4.0.6: FineUI(???) ?? ExtJS ??? ASP.NET ??? FineUI??? ?? No JavaScript,No CSS,No UpdatePanel,No ViewState,No WebServices ??????? ?????? IE 8.0+、Chrome、Firefox、Opera、Safari ???? Apache License v2.0 ?:ExtJS ?? GPL v3 ?????(http://www.sencha.com/license) ???? ??:http://fineui.com/ ??:http://fineui.com/bbs/ ??:http://fineui.com/demo/ ??:http://fineui.com/doc/ ??:http://fineui.codeplex.com/ FineUI ???? ExtJS ????????,???? ExtJS ?,?????: 1. ????? FineUI ? ExtJS ? http://fineui.com/bbs/forum.ph...New ProjectsCheburashka: Static Code Analysis Rule-set for Visual Studio SSDT projectsFree Workflow: Free Workflow Project aim to use Microsoft Workflow Manager as hosting environment to Business Process Workflow , it has its own database to manage users tasks.Jenkins Tray: Jenkins tray real time notifyMoneyManagement: ?? WCF ??????????????WCF?????。??????????????????????????????。MoonSharp: An interpreter for a very close cousin of the Lua language, written in C# for the .NET, Mono, Xamarin and Unity3D platforms.OITPMS_MVC: Online Issue Tracking and Project Management System This project was created for Bug tracking and issues that comes while creating project or on going projectSpiral Chrome: Spiral Chrome, the quick, simple, and user friendly method of phishing. Throttling Suite for Web API: The Throttling Suite provides throttling control capabilities to the .NET Web API applications. It is highly customizable product, yet simple to use.TP2 .NET: Trabajo practico 2 para la clase de .net??????-??????【??】??????????: ?????????????????,???????????????。???????????,??????:????、????、???????! ????-????【??】????????: ????????????????,???????????,??????????????,??????????,??????????????!?????-?????【??】?????????: ??????????????????,?????????????,????,?????????,?????????????,?????,?????! ??????-??????【??】??????????: ??????????????????、????,??100%????,??????,????????????,???????????! ????-????【??】????????: ?????????????????????:????、????、??????????????,????????。????????! ?????-?????【??】?????????: ???????????????????,??????????,????????、????,??????????,??????????。 ?????-?????【??】?????????: ???????,??????:?????,?????,??????,??????????,????????。????????! ??????-??????【??】??????????: ?????????????????,??????????、??????,??????????、????、????、???????。 ??????-??????【??】??????????: ?????????????、??????????????????,????????,?????,??????,????,????,????! ????-????【??】????????: ???????????????????????????、????、????、???????????,????,????! ?????-?????【??】?????????: ?????????????????????,???????????????,????????????????????! ?????-?????【??】?????????: ?????????????????????,???????????????,???????,?????,?????,????? !!! ??????-??????【??】??????????: ????????????????????,????????:??、??、???,?????????????????????! ??????-??????【??】??????????: ??????????????????????,????“???????,???????”?????,????????????! ??????-??????【??】??????????: ???????????,????,????,??????,????“????、????、????、????”????????,??????. ??????-??????【??】??????????: ?????????????,?????,???????????,???????,????,????,????,?????。 ?????-?????【??】?????????: ????????????,?????,???????????,???????,????,????,????,?????。 ??????-??????【??】??????????: ?????????????????????????????,??????????,????,????,?????????、??????,??????。 ????-????【??】????????: ????????????????????????,????,????,??????????。???????????????,??,??,??????????,??????... ?????-?????【??】?????????: ???????????????,?????????????? ??。????????、????、????、?????????? ???????。 ??????-??????【??】??????????: ????????????、???、??、??????????????????????????????,????????????????! ????-????【??】????????: ??????????????6?,???????????????????????????,??????????????,?????????! ?????-?????【??】?????????: ???????????????8?,????????,????????,??????????,?????,????? ,????????!

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  • MySQL and INT auto_increment fields

    - by PHPguy
    Hello folks, I'm developing in LAMP (Linux+Apache+MySQL+PHP) since I remember myself. But one question was bugging me for years now. I hope you can help me to find an answer and point me into the right direction. Here is my challenge: Say, we are creating a community website, where we allow our users to register. The MySQL table where we store all users would look then like this: CREATE TABLE `users` ( `uid` int(2) unsigned NOT NULL auto_increment COMMENT 'User ID', `name` varchar(20) NOT NULL, `password` varchar(32) NOT NULL COMMENT 'Password is saved as a 32-bytes hash, never in plain text', `email` varchar(64) NOT NULL, `created` int(11) unsigned NOT NULL default '0' COMMENT 'Timestamp of registration', `updated` int(11) unsigned NOT NULL default '0' COMMENT 'Timestamp of profile update, e.g. change of email', PRIMARY KEY (`uid`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8; So, from this snippet you can see that we have a unique and automatically incrementing for every new user 'uid' field. As on every good and loyal community website we need to provide users with possibility to completely delete their profile if they want to cancel their participation in our community. Here comes my problem. Let's say we have 3 registered users: Alice (uid = 1), Bob (uid = 2) and Chris (uid = 3). Now Bob want to delete his profile and stop using our community. If we delete Bob's profile from the 'users' table then his missing 'uid' will create a gap which will be never filled again. In my opinion it's a huge waste of uid's. I see 3 possible solutions here: 1) Increase the capacity of the 'uid' field in our table from SMALLINT (int(2)) to, for example, BIGINT (int(8)) and ignore the fact that some of the uid's will be wasted. 2) introduce the new field 'is_deleted', which will be used to mark deleted profiles (but keep them in the table, instead of deleting them) to re-utilize their uid's for newly registered users. The table will look then like this: CREATE TABLE `users` ( `uid` int(2) unsigned NOT NULL auto_increment COMMENT 'User ID', `name` varchar(20) NOT NULL, `password` varchar(32) NOT NULL COMMENT 'Password is saved as a 32-bytes hash, never in plain text', `email` varchar(64) NOT NULL, `is_deleted` int(1) unsigned NOT NULL default '0' COMMENT 'If equal to "1" then the profile has been deleted and will be re-used for new registrations', `created` int(11) unsigned NOT NULL default '0' COMMENT 'Timestamp of registration', `updated` int(11) unsigned NOT NULL default '0' COMMENT 'Timestamp of profile update, e.g. change of email', PRIMARY KEY (`uid`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8; 3) Write a script to shift all following user records once a previous record has been deleted. E.g. in our case when Bob (uid = 2) decides to remove his profile, we would replace his record with the record of Chris (uid = 3), so that uid of Chris becomes qual to 2 and mark (is_deleted = '1') the old record of Chris as vacant for the new users. In this case we keep the chronological order of uid's according to the registration time, so that the older users have lower uid's. Please, advice me now which way is the right way to handle the gaps in the auto_increment fields. This is just one example with users, but such cases occur very often in my programming experience. Thanks in advance!

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  • IOException during blocking network NIO in JDK 1.7

    - by Bass
    I'm just learning NIO, and here's the short example I've written to test how a blocking NIO can be interrupted: class TestBlockingNio { private static final boolean INTERRUPT_VIA_THREAD_INTERRUPT = true; /** * Prevent the socket from being GC'ed */ static Socket socket; private static SocketChannel connect(final int port) { while (true) { try { final SocketChannel channel = SocketChannel.open(new InetSocketAddress(port)); channel.configureBlocking(true); return channel; } catch (final IOException ioe) { try { Thread.sleep(1000); } catch (final InterruptedException ie) { } continue; } } } private static byte[] newBuffer(final int length) { final byte buffer[] = new byte[length]; for (int i = 0; i < length; i++) { buffer[i] = (byte) 'A'; } return buffer; } public static void main(final String args[]) throws IOException, InterruptedException { final int portNumber = 10000; new Thread("Reader") { public void run() { try { final ServerSocket serverSocket = new ServerSocket(portNumber); socket = serverSocket.accept(); /* * Fully ignore any input from the socket */ } catch (final IOException ioe) { ioe.printStackTrace(); } } }.start(); final SocketChannel channel = connect(portNumber); final Thread main = Thread.currentThread(); final Thread interruptor = new Thread("Inerruptor") { public void run() { System.out.println("Press Enter to interrupt I/O "); while (true) { try { System.in.read(); } catch (final IOException ioe) { ioe.printStackTrace(); } System.out.println("Interrupting..."); if (INTERRUPT_VIA_THREAD_INTERRUPT) { main.interrupt(); } else { try { channel.close(); } catch (final IOException ioe) { System.out.println(ioe.getMessage()); } } } } }; interruptor.setDaemon(true); interruptor.start(); final ByteBuffer buffer = ByteBuffer.allocate(32768); int i = 0; try { while (true) { buffer.clear(); buffer.put(newBuffer(buffer.capacity())); buffer.flip(); channel.write(buffer); System.out.print('X'); if (++i % 80 == 0) { System.out.println(); Thread.sleep(100); } } } catch (final ClosedByInterruptException cbie) { System.out.println("Closed via Thread.interrupt()"); } catch (final AsynchronousCloseException ace) { System.out.println("Closed via Channel.close()"); } } } In the above example, I'm writing to a SocketChannel, but noone is reading from the other side, so eventually the write operation hangs. This example works great when run by JDK-1.6, with the following output: Press Enter to interrupt I/O XXXX Interrupting... Closed via Thread.interrupt() — meaning that only 128k of data was written to the TCP socket's buffer. When run by JDK-1.7 (1.7.0_25-b15 and 1.7.0-u40-b37), however, the very same code bails out with an IOException: Press Enter to interrupt I/O XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXX Exception in thread "main" java.io.IOException: Broken pipe at sun.nio.ch.FileDispatcherImpl.write0(Native Method) at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47) at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93) at sun.nio.ch.IOUtil.write(IOUtil.java:65) at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:487) at com.example.TestBlockingNio.main(TestBlockingNio.java:109) Can anyone explain this different behaviour?

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  • Using an alternate JSON Serializer in ASP.NET Web API

    - by Rick Strahl
    The new ASP.NET Web API that Microsoft released alongside MVC 4.0 Beta last week is a great framework for building REST and AJAX APIs. I've been working with it for quite a while now and I really like the way it works and the complete set of features it provides 'in the box'. It's about time that Microsoft gets a decent API for building generic HTTP endpoints into the framework. DataContractJsonSerializer sucks As nice as Web API's overall design is one thing still sucks: The built-in JSON Serialization uses the DataContractJsonSerializer which is just too limiting for many scenarios. The biggest issues I have with it are: No support for untyped values (object, dynamic, Anonymous Types) MS AJAX style Date Formatting Ugly serialization formats for types like Dictionaries To me the most serious issue is dealing with serialization of untyped objects. I have number of applications with AJAX front ends that dynamically reformat data from business objects to fit a specific message format that certain UI components require. The most common scenario I have there are IEnumerable query results from a database with fields from the result set rearranged to fit the sometimes unconventional formats required for the UI components (like jqGrid for example). Creating custom types to fit these messages seems like overkill and projections using Linq makes this much easier to code up. Alas DataContractJsonSerializer doesn't support it. Neither does DataContractSerializer for XML output for that matter. What this means is that you can't do stuff like this in Web API out of the box:public object GetAnonymousType() { return new { name = "Rick", company = "West Wind", entered= DateTime.Now }; } Basically anything that doesn't have an explicit type DataContractJsonSerializer will not let you return. FWIW, the same is true for XmlSerializer which also doesn't work with non-typed values for serialization. The example above is obviously contrived with a hardcoded object graph, but it's not uncommon to get dynamic values returned from queries that have anonymous types for their result projections. Apparently there's a good possibility that Microsoft will ship Json.NET as part of Web API RTM release.  Scott Hanselman confirmed this as a footnote in his JSON Dates post a few days ago. I've heard several other people from Microsoft confirm that Json.NET will be included and be the default JSON serializer, but no details yet in what capacity it will show up. Let's hope it ends up as the default in the box. Meanwhile this post will show you how you can use it today with the beta and get JSON that matches what you should see in the RTM version. What about JsonValue? To be fair Web API DOES include a new JsonValue/JsonObject/JsonArray type that allow you to address some of these scenarios. JsonValue is a new type in the System.Json assembly that can be used to build up an object graph based on a dictionary. It's actually a really cool implementation of a dynamic type that allows you to create an object graph and spit it out to JSON without having to create .NET type first. JsonValue can also receive a JSON string and parse it without having to actually load it into a .NET type (which is something that's been missing in the core framework). This is really useful if you get a JSON result from an arbitrary service and you don't want to explicitly create a mapping type for the data returned. For serialization you can create an object structure on the fly and pass it back as part of an Web API action method like this:public JsonValue GetJsonValue() { dynamic json = new JsonObject(); json.name = "Rick"; json.company = "West Wind"; json.entered = DateTime.Now; dynamic address = new JsonObject(); address.street = "32 Kaiea"; address.zip = "96779"; json.address = address; dynamic phones = new JsonArray(); json.phoneNumbers = phones; dynamic phone = new JsonObject(); phone.type = "Home"; phone.number = "808 123-1233"; phones.Add(phone); phone = new JsonObject(); phone.type = "Home"; phone.number = "808 123-1233"; phones.Add(phone); //var jsonString = json.ToString(); return json; } which produces the following output (formatted here for easier reading):{ name: "rick", company: "West Wind", entered: "2012-03-08T15:33:19.673-10:00", address: { street: "32 Kaiea", zip: "96779" }, phoneNumbers: [ { type: "Home", number: "808 123-1233" }, { type: "Mobile", number: "808 123-1234" }] } If you need to build a simple JSON type on the fly these types work great. But if you have an existing type - or worse a query result/list that's already formatted JsonValue et al. become a pain to work with. As far as I can see there's no way to just throw an object instance at JsonValue and have it convert into JsonValue dictionary. It's a manual process. Using alternate Serializers in Web API So, currently the default serializer in WebAPI is DataContractJsonSeriaizer and I don't like it. You may not either, but luckily you can swap the serializer fairly easily. If you'd rather use the JavaScriptSerializer built into System.Web.Extensions or Json.NET today, it's not too difficult to create a custom MediaTypeFormatter that uses these serializers and can replace or partially replace the native serializer. Here's a MediaTypeFormatter implementation using the ASP.NET JavaScriptSerializer:using System; using System.Net.Http.Formatting; using System.Threading.Tasks; using System.Web.Script.Serialization; using System.Json; using System.IO; namespace Westwind.Web.WebApi { public class JavaScriptSerializerFormatter : MediaTypeFormatter { public JavaScriptSerializerFormatter() { SupportedMediaTypes.Add(new System.Net.Http.Headers.MediaTypeHeaderValue("application/json")); } protected override bool CanWriteType(Type type) { // don't serialize JsonValue structure use default for that if (type == typeof(JsonValue) || type == typeof(JsonObject) || type== typeof(JsonArray) ) return false; return true; } protected override bool CanReadType(Type type) { if (type == typeof(IKeyValueModel)) return false; return true; } protected override System.Threading.Tasks.Taskobject OnReadFromStreamAsync(Type type, System.IO.Stream stream, System.Net.Http.Headers.HttpContentHeaders contentHeaders, FormatterContext formatterContext) { var task = Taskobject.Factory.StartNew(() = { var ser = new JavaScriptSerializer(); string json; using (var sr = new StreamReader(stream)) { json = sr.ReadToEnd(); sr.Close(); } object val = ser.Deserialize(json,type); return val; }); return task; } protected override System.Threading.Tasks.Task OnWriteToStreamAsync(Type type, object value, System.IO.Stream stream, System.Net.Http.Headers.HttpContentHeaders contentHeaders, FormatterContext formatterContext, System.Net.TransportContext transportContext) { var task = Task.Factory.StartNew( () = { var ser = new JavaScriptSerializer(); var json = ser.Serialize(value); byte[] buf = System.Text.Encoding.Default.GetBytes(json); stream.Write(buf,0,buf.Length); stream.Flush(); }); return task; } } } Formatter implementation is pretty simple: You override 4 methods to tell which types you can handle and then handle the input or output streams to create/parse the JSON data. Note that when creating output you want to take care to still allow JsonValue/JsonObject/JsonArray types to be handled by the default serializer so those objects serialize properly - if you let either JavaScriptSerializer or JSON.NET handle them they'd try to render the dictionaries which is very undesirable. If you'd rather use Json.NET here's the JSON.NET version of the formatter:// this code requires a reference to JSON.NET in your project #if true using System; using System.Net.Http.Formatting; using System.Threading.Tasks; using System.Web.Script.Serialization; using System.Json; using Newtonsoft.Json; using System.IO; using Newtonsoft.Json.Converters; namespace Westwind.Web.WebApi { public class JsonNetFormatter : MediaTypeFormatter { public JsonNetFormatter() { SupportedMediaTypes.Add(new System.Net.Http.Headers.MediaTypeHeaderValue("application/json")); } protected override bool CanWriteType(Type type) { // don't serialize JsonValue structure use default for that if (type == typeof(JsonValue) || type == typeof(JsonObject) || type == typeof(JsonArray)) return false; return true; } protected override bool CanReadType(Type type) { if (type == typeof(IKeyValueModel)) return false; return true; } protected override System.Threading.Tasks.Taskobject OnReadFromStreamAsync(Type type, System.IO.Stream stream, System.Net.Http.Headers.HttpContentHeaders contentHeaders, FormatterContext formatterContext) { var task = Taskobject.Factory.StartNew(() = { var settings = new JsonSerializerSettings() { NullValueHandling = NullValueHandling.Ignore, }; var sr = new StreamReader(stream); var jreader = new JsonTextReader(sr); var ser = new JsonSerializer(); ser.Converters.Add(new IsoDateTimeConverter()); object val = ser.Deserialize(jreader, type); return val; }); return task; } protected override System.Threading.Tasks.Task OnWriteToStreamAsync(Type type, object value, System.IO.Stream stream, System.Net.Http.Headers.HttpContentHeaders contentHeaders, FormatterContext formatterContext, System.Net.TransportContext transportContext) { var task = Task.Factory.StartNew( () = { var settings = new JsonSerializerSettings() { NullValueHandling = NullValueHandling.Ignore, }; string json = JsonConvert.SerializeObject(value, Formatting.Indented, new JsonConverter[1] { new IsoDateTimeConverter() } ); byte[] buf = System.Text.Encoding.Default.GetBytes(json); stream.Write(buf,0,buf.Length); stream.Flush(); }); return task; } } } #endif   One advantage of the Json.NET serializer is that you can specify a few options on how things are formatted and handled. You get null value handling and you can plug in the IsoDateTimeConverter which is nice to product proper ISO dates that I would expect any Json serializer to output these days. Hooking up the Formatters Once you've created the custom formatters you need to enable them for your Web API application. To do this use the GlobalConfiguration.Configuration object and add the formatter to the Formatters collection. Here's what this looks like hooked up from Application_Start in a Web project:protected void Application_Start(object sender, EventArgs e) { // Action based routing (used for RPC calls) RouteTable.Routes.MapHttpRoute( name: "StockApi", routeTemplate: "stocks/{action}/{symbol}", defaults: new { symbol = RouteParameter.Optional, controller = "StockApi" } ); // WebApi Configuration to hook up formatters and message handlers // optional RegisterApis(GlobalConfiguration.Configuration); } public static void RegisterApis(HttpConfiguration config) { // Add JavaScriptSerializer formatter instead - add at top to make default //config.Formatters.Insert(0, new JavaScriptSerializerFormatter()); // Add Json.net formatter - add at the top so it fires first! // This leaves the old one in place so JsonValue/JsonObject/JsonArray still are handled config.Formatters.Insert(0, new JsonNetFormatter()); } One thing to remember here is the GlobalConfiguration object which is Web API's static configuration instance. I think this thing is seriously misnamed given that GlobalConfiguration could stand for anything and so is hard to discover if you don't know what you're looking for. How about WebApiConfiguration or something more descriptive? Anyway, once you know what it is you can use the Formatters collection to insert your custom formatter. Note that I insert my formatter at the top of the list so it takes precedence over the default formatter. I also am not removing the old formatter because I still want JsonValue/JsonObject/JsonArray to be handled by the default serialization mechanism. Since they process in sequence and I exclude processing for these types JsonValue et al. still get properly serialized/deserialized. Summary Currently DataContractJsonSerializer in Web API is a pain, but at least we have the ability with relatively limited effort to replace the MediaTypeFormatter and plug in our own JSON serializer. This is useful for many scenarios - if you have existing client applications that used MVC JsonResult or ASP.NET AJAX results from ASMX AJAX services you can plug in the JavaScript serializer and get exactly the same serializer you used in the past so your results will be the same and don't potentially break clients. JSON serializers do vary a bit in how they serialize some of the more complex types (like Dictionaries and dates for example) and so if you're migrating it might be helpful to ensure your client code doesn't break when you switch to ASP.NET Web API. Going forward it looks like Microsoft is planning on plugging in Json.Net into Web API and make that the default. I think that's an awesome choice since Json.net has been around forever, is fast and easy to use and provides a ton of functionality as part of this great library. I just wish Microsoft would have figured this out sooner instead of now at the last minute integrating with it especially given that Json.Net has a similar set of lower level JSON objects JsonValue/JsonObject etc. which now will end up being duplicated by the native System.Json stuff. It's not like we don't already have enough confusion regarding which JSON serializer to use (JavaScriptSerializer, DataContractJsonSerializer, JsonValue/JsonObject/JsonArray and now Json.net). For years I've been using my own JSON serializer because the built in choices are both limited. However, with an official encorsement of Json.Net I'm happily moving on to use that in my applications. Let's see and hope Microsoft gets this right before ASP.NET Web API goes gold.© Rick Strahl, West Wind Technologies, 2005-2012Posted in Web Api  AJAX  ASP.NET   Tweet !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

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  • C#/.NET Fundamentals: Choosing the Right Collection Class

    - by James Michael Hare
    The .NET Base Class Library (BCL) has a wide array of collection classes at your disposal which make it easy to manage collections of objects. While it's great to have so many classes available, it can be daunting to choose the right collection to use for any given situation. As hard as it may be, choosing the right collection can be absolutely key to the performance and maintainability of your application! This post will look at breaking down any confusion between each collection and the situations in which they excel. We will be spending most of our time looking at the System.Collections.Generic namespace, which is the recommended set of collections. The Generic Collections: System.Collections.Generic namespace The generic collections were introduced in .NET 2.0 in the System.Collections.Generic namespace. This is the main body of collections you should tend to focus on first, as they will tend to suit 99% of your needs right up front. It is important to note that the generic collections are unsynchronized. This decision was made for performance reasons because depending on how you are using the collections its completely possible that synchronization may not be required or may be needed on a higher level than simple method-level synchronization. Furthermore, concurrent read access (all writes done at beginning and never again) is always safe, but for concurrent mixed access you should either synchronize the collection or use one of the concurrent collections. So let's look at each of the collections in turn and its various pros and cons, at the end we'll summarize with a table to help make it easier to compare and contrast the different collections. The Associative Collection Classes Associative collections store a value in the collection by providing a key that is used to add/remove/lookup the item. Hence, the container associates the value with the key. These collections are most useful when you need to lookup/manipulate a collection using a key value. For example, if you wanted to look up an order in a collection of orders by an order id, you might have an associative collection where they key is the order id and the value is the order. The Dictionary<TKey,TVale> is probably the most used associative container class. The Dictionary<TKey,TValue> is the fastest class for associative lookups/inserts/deletes because it uses a hash table under the covers. Because the keys are hashed, the key type should correctly implement GetHashCode() and Equals() appropriately or you should provide an external IEqualityComparer to the dictionary on construction. The insert/delete/lookup time of items in the dictionary is amortized constant time - O(1) - which means no matter how big the dictionary gets, the time it takes to find something remains relatively constant. This is highly desirable for high-speed lookups. The only downside is that the dictionary, by nature of using a hash table, is unordered, so you cannot easily traverse the items in a Dictionary in order. The SortedDictionary<TKey,TValue> is similar to the Dictionary<TKey,TValue> in usage but very different in implementation. The SortedDictionary<TKey,TValye> uses a binary tree under the covers to maintain the items in order by the key. As a consequence of sorting, the type used for the key must correctly implement IComparable<TKey> so that the keys can be correctly sorted. The sorted dictionary trades a little bit of lookup time for the ability to maintain the items in order, thus insert/delete/lookup times in a sorted dictionary are logarithmic - O(log n). Generally speaking, with logarithmic time, you can double the size of the collection and it only has to perform one extra comparison to find the item. Use the SortedDictionary<TKey,TValue> when you want fast lookups but also want to be able to maintain the collection in order by the key. The SortedList<TKey,TValue> is the other ordered associative container class in the generic containers. Once again SortedList<TKey,TValue>, like SortedDictionary<TKey,TValue>, uses a key to sort key-value pairs. Unlike SortedDictionary, however, items in a SortedList are stored as an ordered array of items. This means that insertions and deletions are linear - O(n) - because deleting or adding an item may involve shifting all items up or down in the list. Lookup time, however is O(log n) because the SortedList can use a binary search to find any item in the list by its key. So why would you ever want to do this? Well, the answer is that if you are going to load the SortedList up-front, the insertions will be slower, but because array indexing is faster than following object links, lookups are marginally faster than a SortedDictionary. Once again I'd use this in situations where you want fast lookups and want to maintain the collection in order by the key, and where insertions and deletions are rare. The Non-Associative Containers The other container classes are non-associative. They don't use keys to manipulate the collection but rely on the object itself being stored or some other means (such as index) to manipulate the collection. The List<T> is a basic contiguous storage container. Some people may call this a vector or dynamic array. Essentially it is an array of items that grow once its current capacity is exceeded. Because the items are stored contiguously as an array, you can access items in the List<T> by index very quickly. However inserting and removing in the beginning or middle of the List<T> are very costly because you must shift all the items up or down as you delete or insert respectively. However, adding and removing at the end of a List<T> is an amortized constant operation - O(1). Typically List<T> is the standard go-to collection when you don't have any other constraints, and typically we favor a List<T> even over arrays unless we are sure the size will remain absolutely fixed. The LinkedList<T> is a basic implementation of a doubly-linked list. This means that you can add or remove items in the middle of a linked list very quickly (because there's no items to move up or down in contiguous memory), but you also lose the ability to index items by position quickly. Most of the time we tend to favor List<T> over LinkedList<T> unless you are doing a lot of adding and removing from the collection, in which case a LinkedList<T> may make more sense. The HashSet<T> is an unordered collection of unique items. This means that the collection cannot have duplicates and no order is maintained. Logically, this is very similar to having a Dictionary<TKey,TValue> where the TKey and TValue both refer to the same object. This collection is very useful for maintaining a collection of items you wish to check membership against. For example, if you receive an order for a given vendor code, you may want to check to make sure the vendor code belongs to the set of vendor codes you handle. In these cases a HashSet<T> is useful for super-quick lookups where order is not important. Once again, like in Dictionary, the type T should have a valid implementation of GetHashCode() and Equals(), or you should provide an appropriate IEqualityComparer<T> to the HashSet<T> on construction. The SortedSet<T> is to HashSet<T> what the SortedDictionary<TKey,TValue> is to Dictionary<TKey,TValue>. That is, the SortedSet<T> is a binary tree where the key and value are the same object. This once again means that adding/removing/lookups are logarithmic - O(log n) - but you gain the ability to iterate over the items in order. For this collection to be effective, type T must implement IComparable<T> or you need to supply an external IComparer<T>. Finally, the Stack<T> and Queue<T> are two very specific collections that allow you to handle a sequential collection of objects in very specific ways. The Stack<T> is a last-in-first-out (LIFO) container where items are added and removed from the top of the stack. Typically this is useful in situations where you want to stack actions and then be able to undo those actions in reverse order as needed. The Queue<T> on the other hand is a first-in-first-out container which adds items at the end of the queue and removes items from the front. This is useful for situations where you need to process items in the order in which they came, such as a print spooler or waiting lines. So that's the basic collections. Let's summarize what we've learned in a quick reference table.  Collection Ordered? Contiguous Storage? Direct Access? Lookup Efficiency Manipulate Efficiency Notes Dictionary No Yes Via Key Key: O(1) O(1) Best for high performance lookups. SortedDictionary Yes No Via Key Key: O(log n) O(log n) Compromise of Dictionary speed and ordering, uses binary search tree. SortedList Yes Yes Via Key Key: O(log n) O(n) Very similar to SortedDictionary, except tree is implemented in an array, so has faster lookup on preloaded data, but slower loads. List No Yes Via Index Index: O(1) Value: O(n) O(n) Best for smaller lists where direct access required and no ordering. LinkedList No No No Value: O(n) O(1) Best for lists where inserting/deleting in middle is common and no direct access required. HashSet No Yes Via Key Key: O(1) O(1) Unique unordered collection, like a Dictionary except key and value are same object. SortedSet Yes No Via Key Key: O(log n) O(log n) Unique ordered collection, like SortedDictionary except key and value are same object. Stack No Yes Only Top Top: O(1) O(1)* Essentially same as List<T> except only process as LIFO Queue No Yes Only Front Front: O(1) O(1) Essentially same as List<T> except only process as FIFO   The Original Collections: System.Collections namespace The original collection classes are largely considered deprecated by developers and by Microsoft itself. In fact they indicate that for the most part you should always favor the generic or concurrent collections, and only use the original collections when you are dealing with legacy .NET code. Because these collections are out of vogue, let's just briefly mention the original collection and their generic equivalents: ArrayList A dynamic, contiguous collection of objects. Favor the generic collection List<T> instead. Hashtable Associative, unordered collection of key-value pairs of objects. Favor the generic collection Dictionary<TKey,TValue> instead. Queue First-in-first-out (FIFO) collection of objects. Favor the generic collection Queue<T> instead. SortedList Associative, ordered collection of key-value pairs of objects. Favor the generic collection SortedList<T> instead. Stack Last-in-first-out (LIFO) collection of objects. Favor the generic collection Stack<T> instead. In general, the older collections are non-type-safe and in some cases less performant than their generic counterparts. Once again, the only reason you should fall back on these older collections is for backward compatibility with legacy code and libraries only. The Concurrent Collections: System.Collections.Concurrent namespace The concurrent collections are new as of .NET 4.0 and are included in the System.Collections.Concurrent namespace. These collections are optimized for use in situations where multi-threaded read and write access of a collection is desired. The concurrent queue, stack, and dictionary work much as you'd expect. The bag and blocking collection are more unique. Below is the summary of each with a link to a blog post I did on each of them. ConcurrentQueue Thread-safe version of a queue (FIFO). For more information see: C#/.NET Little Wonders: The ConcurrentStack and ConcurrentQueue ConcurrentStack Thread-safe version of a stack (LIFO). For more information see: C#/.NET Little Wonders: The ConcurrentStack and ConcurrentQueue ConcurrentBag Thread-safe unordered collection of objects. Optimized for situations where a thread may be bother reader and writer. For more information see: C#/.NET Little Wonders: The ConcurrentBag and BlockingCollection ConcurrentDictionary Thread-safe version of a dictionary. Optimized for multiple readers (allows multiple readers under same lock). For more information see C#/.NET Little Wonders: The ConcurrentDictionary BlockingCollection Wrapper collection that implement producers & consumers paradigm. Readers can block until items are available to read. Writers can block until space is available to write (if bounded). For more information see C#/.NET Little Wonders: The ConcurrentBag and BlockingCollection Summary The .NET BCL has lots of collections built in to help you store and manipulate collections of data. Understanding how these collections work and knowing in which situations each container is best is one of the key skills necessary to build more performant code. Choosing the wrong collection for the job can make your code much slower or even harder to maintain if you choose one that doesn’t perform as well or otherwise doesn’t exactly fit the situation. Remember to avoid the original collections and stick with the generic collections.  If you need concurrent access, you can use the generic collections if the data is read-only, or consider the concurrent collections for mixed-access if you are running on .NET 4.0 or higher.   Tweet Technorati Tags: C#,.NET,Collecitons,Generic,Concurrent,Dictionary,List,Stack,Queue,SortedList,SortedDictionary,HashSet,SortedSet

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  • Wireless card power management

    - by penner
    I have noticed that when my computer in plugged in, the wireless strength increases. I'm assuming this is to do with power management. Is there a way to disable Wireless Power Management? I have found a few blog posts that show hacks to disable this but what is best practice here? Should there not be an option via the power menu that lets you toggle this? EDIT -- FILES AND LOGS AS REQUESTED /var/log/kern.log Jul 11 11:45:27 CoolBreeze kernel: [ 6.528052] postgres (1308): /proc/1308/oom_adj is deprecated, please use /proc/1308/oom_score_adj instead. Jul 11 11:45:27 CoolBreeze kernel: [ 6.532080] [fglrx] Gart USWC size:1280 M. Jul 11 11:45:27 CoolBreeze kernel: [ 6.532084] [fglrx] Gart cacheable size:508 M. Jul 11 11:45:27 CoolBreeze kernel: [ 6.532091] [fglrx] Reserved FB block: Shared offset:0, size:1000000 Jul 11 11:45:27 CoolBreeze kernel: [ 6.532094] [fglrx] Reserved FB block: Unshared offset:f8fd000, size:403000 Jul 11 11:45:27 CoolBreeze kernel: [ 6.532098] [fglrx] Reserved FB block: Unshared offset:3fff4000, size:c000 Jul 11 11:45:38 CoolBreeze kernel: [ 17.423743] eth1: no IPv6 routers present Jul 11 11:46:37 CoolBreeze kernel: [ 75.836426] warning: `proftpd' uses 32-bit capabilities (legacy support in use) Jul 11 11:46:37 CoolBreeze kernel: [ 75.884215] init: plymouth-stop pre-start process (2922) terminated with status 1 Jul 11 11:54:25 CoolBreeze kernel: [ 543.679614] eth1: no IPv6 routers present dmesg [ 1.411959] ACPI: Power Button [PWRB] [ 1.412046] input: Sleep Button as /devices/LNXSYSTM:00/device:00/PNP0C0E:00/input/input1 [ 1.412054] ACPI: Sleep Button [SLPB] [ 1.412150] input: Lid Switch as /devices/LNXSYSTM:00/device:00/PNP0C0D:00/input/input2 [ 1.412765] ACPI: Lid Switch [LID0] [ 1.412866] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input3 [ 1.412874] ACPI: Power Button [PWRF] [ 1.412996] ACPI: Fan [FAN0] (off) [ 1.413068] ACPI: Fan [FAN1] (off) [ 1.419493] thermal LNXTHERM:00: registered as thermal_zone0 [ 1.419498] ACPI: Thermal Zone [TZ00] (27 C) [ 1.421913] thermal LNXTHERM:01: registered as thermal_zone1 [ 1.421918] ACPI: Thermal Zone [TZ01] (61 C) [ 1.421971] ACPI: Deprecated procfs I/F for battery is loaded, please retry with CONFIG_ACPI_PROCFS_POWER cleared [ 1.421986] ACPI: Battery Slot [BAT0] (battery present) [ 1.422062] ERST: Table is not found! [ 1.422067] GHES: HEST is not enabled! [ 1.422158] isapnp: Scanning for PnP cards... [ 1.422242] Serial: 8250/16550 driver, 32 ports, IRQ sharing enabled [ 1.434620] ACPI: Battery Slot [BAT0] (battery present) [ 1.736355] Freeing initrd memory: 14352k freed [ 1.777846] isapnp: No Plug & Play device found [ 1.963650] Linux agpgart interface v0.103 [ 1.967148] brd: module loaded [ 1.968866] loop: module loaded [ 1.969134] ahci 0000:00:1f.2: version 3.0 [ 1.969154] ahci 0000:00:1f.2: PCI INT B -> GSI 19 (level, low) -> IRQ 19 [ 1.969226] ahci 0000:00:1f.2: irq 45 for MSI/MSI-X [ 1.969277] ahci: SSS flag set, parallel bus scan disabled [ 1.969320] ahci 0000:00:1f.2: AHCI 0001.0300 32 slots 6 ports 3 Gbps 0x23 impl SATA mode [ 1.969329] ahci 0000:00:1f.2: flags: 64bit ncq sntf stag pm led clo pio slum part ems sxs apst [ 1.969338] ahci 0000:00:1f.2: setting latency timer to 64 [ 1.983340] scsi0 : ahci [ 1.983515] scsi1 : ahci [ 1.983670] scsi2 : ahci [ 1.983829] scsi3 : ahci [ 1.983985] scsi4 : ahci [ 1.984145] scsi5 : ahci [ 1.984270] ata1: SATA max UDMA/133 abar m2048@0xf1005000 port 0xf1005100 irq 45 [ 1.984277] ata2: SATA max UDMA/133 abar m2048@0xf1005000 port 0xf1005180 irq 45 [ 1.984282] ata3: DUMMY [ 1.984285] ata4: DUMMY [ 1.984288] ata5: DUMMY [ 1.984292] ata6: SATA max UDMA/133 abar m2048@0xf1005000 port 0xf1005380 irq 45 [ 1.985150] Fixed MDIO Bus: probed [ 1.985192] tun: Universal TUN/TAP device driver, 1.6 [ 1.985196] tun: (C) 1999-2004 Max Krasnyansky <[email protected]> [ 1.985285] PPP generic driver version 2.4.2 [ 1.985472] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 1.985507] ehci_hcd 0000:00:1a.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 1.985534] ehci_hcd 0000:00:1a.0: setting latency timer to 64 [ 1.985541] ehci_hcd 0000:00:1a.0: EHCI Host Controller [ 1.985626] ehci_hcd 0000:00:1a.0: new USB bus registered, assigned bus number 1 [ 1.985666] ehci_hcd 0000:00:1a.0: debug port 2 [ 1.989663] ehci_hcd 0000:00:1a.0: cache line size of 64 is not supported [ 1.989690] ehci_hcd 0000:00:1a.0: irq 16, io mem 0xf1005800 [ 2.002183] ehci_hcd 0000:00:1a.0: USB 2.0 started, EHCI 1.00 [ 2.002447] hub 1-0:1.0: USB hub found [ 2.002455] hub 1-0:1.0: 3 ports detected [ 2.002607] ehci_hcd 0000:00:1d.0: PCI INT A -> GSI 23 (level, low) -> IRQ 23 [ 2.002633] ehci_hcd 0000:00:1d.0: setting latency timer to 64 [ 2.002639] ehci_hcd 0000:00:1d.0: EHCI Host Controller [ 2.002737] ehci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 2 [ 2.002775] ehci_hcd 0000:00:1d.0: debug port 2 [ 2.006780] ehci_hcd 0000:00:1d.0: cache line size of 64 is not supported [ 2.006806] ehci_hcd 0000:00:1d.0: irq 23, io mem 0xf1005c00 [ 2.022161] ehci_hcd 0000:00:1d.0: USB 2.0 started, EHCI 1.00 [ 2.022401] hub 2-0:1.0: USB hub found [ 2.022409] hub 2-0:1.0: 3 ports detected [ 2.022567] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 2.022599] uhci_hcd: USB Universal Host Controller Interface driver [ 2.022720] usbcore: registered new interface driver libusual [ 2.022813] i8042: PNP: PS/2 Controller [PNP0303:PS2K,PNP0f13:PS2M] at 0x60,0x64 irq 1,12 [ 2.035831] serio: i8042 KBD port at 0x60,0x64 irq 1 [ 2.035844] serio: i8042 AUX port at 0x60,0x64 irq 12 [ 2.036096] mousedev: PS/2 mouse device common for all mice [ 2.036710] rtc_cmos 00:07: RTC can wake from S4 [ 2.036881] rtc_cmos 00:07: rtc core: registered rtc_cmos as rtc0 [ 2.037143] rtc0: alarms up to one month, y3k, 242 bytes nvram, hpet irqs [ 2.037503] device-mapper: uevent: version 1.0.3 [ 2.037656] device-mapper: ioctl: 4.22.0-ioctl (2011-10-19) initialised: [email protected] [ 2.037725] EISA: Probing bus 0 at eisa.0 [ 2.037729] EISA: Cannot allocate resource for mainboard [ 2.037734] Cannot allocate resource for EISA slot 1 [ 2.037738] Cannot allocate resource for EISA slot 2 [ 2.037741] Cannot allocate resource for EISA slot 3 [ 2.037745] Cannot allocate resource for EISA slot 4 [ 2.037749] Cannot allocate resource for EISA slot 5 [ 2.037753] Cannot allocate resource for EISA slot 6 [ 2.037756] Cannot allocate resource for EISA slot 7 [ 2.037760] Cannot allocate resource for EISA slot 8 [ 2.037764] EISA: Detected 0 cards. [ 2.037782] cpufreq-nforce2: No nForce2 chipset. [ 2.038264] cpuidle: using governor ladder [ 2.039015] cpuidle: using governor menu [ 2.039019] EFI Variables Facility v0.08 2004-May-17 [ 2.040061] TCP cubic registered [ 2.041438] NET: Registered protocol family 10 [ 2.043814] NET: Registered protocol family 17 [ 2.043823] Registering the dns_resolver key type [ 2.044290] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input4 [ 2.044336] Using IPI No-Shortcut mode [ 2.045620] PM: Hibernation image not present or could not be loaded. [ 2.045644] registered taskstats version 1 [ 2.073070] Magic number: 4:976:796 [ 2.073415] rtc_cmos 00:07: setting system clock to 2012-07-11 18:45:23 UTC (1342032323) [ 2.076654] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found [ 2.076658] EDD information not available. [ 2.302111] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) [ 2.302587] ata1.00: ATA-9: M4-CT128M4SSD2, 000F, max UDMA/100 [ 2.302595] ata1.00: 250069680 sectors, multi 16: LBA48 NCQ (depth 31/32), AA [ 2.303143] ata1.00: configured for UDMA/100 [ 2.303453] scsi 0:0:0:0: Direct-Access ATA M4-CT128M4SSD2 000F PQ: 0 ANSI: 5 [ 2.303746] sd 0:0:0:0: Attached scsi generic sg0 type 0 [ 2.303920] sd 0:0:0:0: [sda] 250069680 512-byte logical blocks: (128 GB/119 GiB) [ 2.304213] sd 0:0:0:0: [sda] Write Protect is off [ 2.304225] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 [ 2.304471] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 2.306818] sda: sda1 sda2 < sda5 > [ 2.308780] sd 0:0:0:0: [sda] Attached SCSI disk [ 2.318162] Refined TSC clocksource calibration: 1595.999 MHz. [ 2.318169] usb 1-1: new high-speed USB device number 2 using ehci_hcd [ 2.318178] Switching to clocksource tsc [ 2.450939] hub 1-1:1.0: USB hub found [ 2.451121] hub 1-1:1.0: 6 ports detected [ 2.561786] usb 2-1: new high-speed USB device number 2 using ehci_hcd [ 2.621757] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 2.636143] ata2.00: ATAPI: TSSTcorp DVD+/-RW TS-T633C, D800, max UDMA/100 [ 2.636152] ata2.00: applying bridge limits [ 2.649711] ata2.00: configured for UDMA/100 [ 2.653762] scsi 1:0:0:0: CD-ROM TSSTcorp DVD+-RW TS-T633C D800 PQ: 0 ANSI: 5 [ 2.661486] sr0: scsi3-mmc drive: 24x/24x writer dvd-ram cd/rw xa/form2 cdda tray [ 2.661494] cdrom: Uniform CD-ROM driver Revision: 3.20 [ 2.661890] sr 1:0:0:0: Attached scsi CD-ROM sr0 [ 2.662156] sr 1:0:0:0: Attached scsi generic sg1 type 5 [ 2.694649] hub 2-1:1.0: USB hub found [ 2.694840] hub 2-1:1.0: 8 ports detected [ 2.765823] usb 1-1.4: new high-speed USB device number 3 using ehci_hcd [ 2.981454] ata6: SATA link down (SStatus 0 SControl 300) [ 2.982597] Freeing unused kernel memory: 740k freed [ 2.983523] Write protecting the kernel text: 5816k [ 2.983808] Write protecting the kernel read-only data: 2376k [ 2.983811] NX-protecting the kernel data: 4424k [ 3.014594] udevd[127]: starting version 175 [ 3.068925] sdhci: Secure Digital Host Controller Interface driver [ 3.068932] sdhci: Copyright(c) Pierre Ossman [ 3.069714] sdhci-pci 0000:09:00.0: SDHCI controller found [1180:e822] (rev 1) [ 3.069742] sdhci-pci 0000:09:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 3.069786] sdhci-pci 0000:09:00.0: Will use DMA mode even though HW doesn't fully claim to support it. [ 3.069798] sdhci-pci 0000:09:00.0: setting latency timer to 64 [ 3.069816] mmc0: no vmmc regulator found [ 3.069877] Registered led device: mmc0:: [ 3.070946] mmc0: SDHCI controller on PCI [0000:09:00.0] using DMA [ 3.071078] tg3.c:v3.121 (November 2, 2011) [ 3.071252] tg3 0000:0b:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17 [ 3.071269] tg3 0000:0b:00.0: setting latency timer to 64 [ 3.071403] firewire_ohci 0000:09:00.3: PCI INT D -> GSI 19 (level, low) -> IRQ 19 [ 3.071417] firewire_ohci 0000:09:00.3: setting latency timer to 64 [ 3.078509] EXT4-fs (sda1): INFO: recovery required on readonly filesystem [ 3.078517] EXT4-fs (sda1): write access will be enabled during recovery [ 3.110417] tg3 0000:0b:00.0: eth0: Tigon3 [partno(BCM95784M) rev 5784100] (PCI Express) MAC address b8:ac:6f:71:02:a6 [ 3.110425] tg3 0000:0b:00.0: eth0: attached PHY is 5784 (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[0]) [ 3.110431] tg3 0000:0b:00.0: eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[1] [ 3.110436] tg3 0000:0b:00.0: eth0: dma_rwctrl[76180000] dma_mask[64-bit] [ 3.125492] firewire_ohci: Added fw-ohci device 0000:09:00.3, OHCI v1.10, 4 IR + 4 IT contexts, quirks 0x11 [ 3.390124] EXT4-fs (sda1): orphan cleanup on readonly fs [ 3.390135] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 7078710 [ 3.390232] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 2363071 [ 3.390327] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 7078711 [ 3.390350] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 7078709 [ 3.390367] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 7078708 [ 3.390384] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 7078707 [ 3.390401] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 7078706 [ 3.390417] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 7078705 [ 3.390435] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 7078551 [ 3.390452] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 7078523 [ 3.390470] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 7078520 [ 3.390487] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 7077901 [ 3.390551] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 4063272 [ 3.390562] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 4063266 [ 3.390572] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 4063261 [ 3.390582] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 4063256 [ 3.390592] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 4063255 [ 3.390602] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 2363072 [ 3.390620] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 2360050 [ 3.390698] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 5250064 [ 3.390710] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 2365394 [ 3.390728] EXT4-fs (sda1): ext4_orphan_cleanup: deleting unreferenced inode 2365390 [ 3.390745] EXT4-fs (sda1): 22 orphan inodes deleted [ 3.390748] EXT4-fs (sda1): recovery complete [ 3.397636] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null) [ 3.624910] firewire_core: created device fw0: GUID 464fc000110e2661, S400 [ 3.927467] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 3.929965] udevd[400]: starting version 175 [ 3.933581] Adding 6278140k swap on /dev/sda5. Priority:-1 extents:1 across:6278140k SS [ 3.945183] lp: driver loaded but no devices found [ 3.999389] wmi: Mapper loaded [ 4.016696] ite_cir: Auto-detected model: ITE8708 CIR transceiver [ 4.016702] ite_cir: Using model: ITE8708 CIR transceiver [ 4.016706] ite_cir: TX-capable: 1 [ 4.016710] ite_cir: Sample period (ns): 8680 [ 4.016713] ite_cir: TX carrier frequency (Hz): 38000 [ 4.016716] ite_cir: TX duty cycle (%): 33 [ 4.016719] ite_cir: RX low carrier frequency (Hz): 0 [ 4.016722] ite_cir: RX high carrier frequency (Hz): 0 [ 4.025684] fglrx: module license 'Proprietary. (C) 2002 - ATI Technologies, Starnberg, GERMANY' taints kernel. [ 4.025691] Disabling lock debugging due to kernel taint [ 4.027410] IR NEC protocol handler initialized [ 4.030250] lib80211: common routines for IEEE802.11 drivers [ 4.030257] lib80211_crypt: registered algorithm 'NULL' [ 4.036024] IR RC5(x) protocol handler initialized [ 4.036092] snd_hda_intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22 [ 4.036188] snd_hda_intel 0000:00:1b.0: irq 46 for MSI/MSI-X [ 4.036307] snd_hda_intel 0000:00:1b.0: setting latency timer to 64 [ 4.036361] [Firmware Bug]: ACPI: No _BQC method, cannot determine initial brightness [ 4.039006] acpi device:03: registered as cooling_device10 [ 4.039164] input: Video Bus as /devices/LNXSYSTM:00/device:00/PNP0A08:00/device:01/LNXVIDEO:00/input/input5 [ 4.039261] ACPI: Video Device [M86] (multi-head: yes rom: no post: no) [ 4.049753] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro [ 4.050201] wl 0000:05:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17 [ 4.050215] wl 0000:05:00.0: setting latency timer to 64 [ 4.052252] Registered IR keymap rc-rc6-mce [ 4.052432] input: ITE8708 CIR transceiver as /devices/virtual/rc/rc0/input6 [ 4.054614] IR RC6 protocol handler initialized [ 4.054787] rc0: ITE8708 CIR transceiver as /devices/virtual/rc/rc0 [ 4.054839] ite_cir: driver has been successfully loaded [ 4.057338] IR JVC protocol handler initialized [ 4.061553] IR Sony protocol handler initialized [ 4.066578] input: MCE IR Keyboard/Mouse (ite-cir) as /devices/virtual/input/input7 [ 4.066724] IR MCE Keyboard/mouse protocol handler initialized [ 4.072580] lirc_dev: IR Remote Control driver registered, major 250 [ 4.073280] rc rc0: lirc_dev: driver ir-lirc-codec (ite-cir) registered at minor = 0 [ 4.073286] IR LIRC bridge handler initialized [ 4.077849] Linux video capture interface: v2.00 [ 4.079402] uvcvideo: Found UVC 1.00 device Laptop_Integrated_Webcam_2M (0c45:640f) [ 4.085492] EDAC MC: Ver: 2.1.0 [ 4.087138] lib80211_crypt: registered algorithm 'TKIP' [ 4.091027] input: HDA Intel Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input8 [ 4.091733] snd_hda_intel 0000:02:00.1: PCI INT B -> GSI 17 (level, low) -> IRQ 17 [ 4.091826] snd_hda_intel 0000:02:00.1: irq 47 for MSI/MSI-X [ 4.091861] snd_hda_intel 0000:02:00.1: setting latency timer to 64 [ 4.093115] EDAC i7core: Device not found: dev 00.0 PCI ID 8086:2c50 [ 4.112448] HDMI status: Codec=0 Pin=3 Presence_Detect=0 ELD_Valid=0 [ 4.112612] input: HD-Audio Generic HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:03.0/0000:02:00.1/sound/card1/input9 [ 4.113311] type=1400 audit(1342032325.540:2): apparmor="STATUS" operation="profile_load" name="/sbin/dhclient" pid=658 comm="apparmor_parser" [ 4.114501] type=1400 audit(1342032325.540:3): apparmor="STATUS" operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=658 comm="apparmor_parser" [ 4.115253] type=1400 audit(1342032325.540:4): apparmor="STATUS" operation="profile_load" name="/usr/lib/connman/scripts/dhclient-script" pid=658 comm="apparmor_parser" [ 4.121870] input: Laptop_Integrated_Webcam_2M as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0/input/input10 [ 4.122096] usbcore: registered new interface driver uvcvideo [ 4.122100] USB Video Class driver (1.1.1) [ 4.128729] [fglrx] Maximum main memory to use for locked dma buffers: 5840 MBytes. [ 4.129678] [fglrx] vendor: 1002 device: 68c0 count: 1 [ 4.131991] [fglrx] ioport: bar 4, base 0x2000, size: 0x100 [ 4.132015] pci 0000:02:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 4.132024] pci 0000:02:00.0: setting latency timer to 64 [ 4.133712] [fglrx] Kernel PAT support is enabled [ 4.133747] [fglrx] module loaded - fglrx 8.96.4 [Mar 12 2012] with 1 minors [ 4.162666] eth1: Broadcom BCM4727 802.11 Hybrid Wireless Controller 5.100.82.38 [ 4.184133] device-mapper: multipath: version 1.3.0 loaded [ 4.196660] dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2) [ 4.279897] input: Dell WMI hotkeys as /devices/virtual/input/input11 [ 4.292402] Bluetooth: Core ver 2.16 [ 4.292449] NET: Registered protocol family 31 [ 4.292454] Bluetooth: HCI device and connection manager initialized [ 4.292459] Bluetooth: HCI socket layer initialized [ 4.292463] Bluetooth: L2CAP socket layer initialized [ 4.292473] Bluetooth: SCO socket layer initialized [ 4.296333] Bluetooth: RFCOMM TTY layer initialized [ 4.296342] Bluetooth: RFCOMM socket layer initialized [ 4.296345] Bluetooth: RFCOMM ver 1.11 [ 4.313586] ppdev: user-space parallel port driver [ 4.316619] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 4.316625] Bluetooth: BNEP filters: protocol multicast [ 4.383980] type=1400 audit(1342032325.812:5): apparmor="STATUS" operation="profile_load" name="/usr/lib/cups/backend/cups-pdf" pid=938 comm="apparmor_parser" [ 4.385173] type=1400 audit(1342032325.812:6): apparmor="STATUS" operation="profile_load" name="/usr/sbin/cupsd" pid=938 comm="apparmor_parser" [ 4.425757] init: failsafe main process (898) killed by TERM signal [ 4.477052] type=1400 audit(1342032325.904:7): apparmor="STATUS" operation="profile_replace" name="/sbin/dhclient" pid=1011 comm="apparmor_parser" [ 4.477592] type=1400 audit(1342032325.904:8): apparmor="STATUS" operation="profile_load" name="/usr/lib/lightdm/lightdm/lightdm-guest-session-wrapper" pid=1010 comm="apparmor_parser" [ 4.478099] type=1400 audit(1342032325.904:9): apparmor="STATUS" operation="profile_load" name="/usr/sbin/tcpdump" pid=1017 comm="apparmor_parser" [ 4.479233] type=1400 audit(1342032325.904:10): apparmor="STATUS" operation="profile_load" name="/usr/lib/telepathy/mission-control-5" pid=1014 comm="apparmor_parser" [ 4.510060] vesafb: mode is 1152x864x32, linelength=4608, pages=0 [ 4.510065] vesafb: scrolling: redraw [ 4.510071] vesafb: Truecolor: size=0:8:8:8, shift=0:16:8:0 [ 4.510084] mtrr: no more MTRRs available [ 4.513081] vesafb: framebuffer at 0xd0000000, mapped to 0xf9400000, using 3904k, total 3904k [ 4.515203] Console: switching to colour frame buffer device 144x54 [ 4.515278] fb0: VESA VGA frame buffer device [ 4.590743] tg3 0000:0b:00.0: irq 48 for MSI/MSI-X [ 4.702009] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 4.704409] ADDRCONF(NETDEV_UP): eth0: link is not ready [ 4.978379] psmouse serio1: synaptics: Touchpad model: 1, fw: 7.2, id: 0x1c0b1, caps: 0xd04733/0xa40000/0xa0000 [ 5.030104] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input12 [ 5.045782] kvm: VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL does not work properly. Using workaround [ 5.519573] [fglrx] ATIF platform detected with notification ID: 0x81 [ 6.391466] fglrx_pci 0000:02:00.0: irq 49 for MSI/MSI-X [ 6.393137] [fglrx] Firegl kernel thread PID: 1305 [ 6.393306] [fglrx] Firegl kernel thread PID: 1306 [ 6.393472] [fglrx] Firegl kernel thread PID: 1307 [ 6.393726] [fglrx] IRQ 49 Enabled [ 6.528052] postgres (1308): /proc/1308/oom_adj is deprecated, please use /proc/1308/oom_score_adj instead. [ 6.532080] [fglrx] Gart USWC size:1280 M. [ 6.532084] [fglrx] Gart cacheable size:508 M. [ 6.532091] [fglrx] Reserved FB block: Shared offset:0, size:1000000 [ 6.532094] [fglrx] Reserved FB block: Unshared offset:f8fd000, size:403000 [ 6.532098] [fglrx] Reserved FB block: Unshared offset:3fff4000, size:c000 [ 17.423743] eth1: no IPv6 routers present [ 75.836426] warning: `proftpd' uses 32-bit capabilities (legacy support in use) [ 75.884215] init: plymouth-stop pre-start process (2922) terminated with status 1 [ 543.679614] eth1: no IPv6 routers present lsmod Module Size Used by kvm_intel 127560 0 kvm 359456 1 kvm_intel joydev 17393 0 vesafb 13516 1 parport_pc 32114 0 bnep 17830 2 ppdev 12849 0 rfcomm 38139 0 bluetooth 158438 10 bnep,rfcomm dell_wmi 12601 0 sparse_keymap 13658 1 dell_wmi binfmt_misc 17292 1 dell_laptop 17767 0 dcdbas 14098 1 dell_laptop dm_multipath 22710 0 fglrx 2909855 143 snd_hda_codec_hdmi 31775 1 psmouse 72919 0 serio_raw 13027 0 i7core_edac 23382 0 lib80211_crypt_tkip 17275 0 edac_core 46858 1 i7core_edac uvcvideo 67203 0 snd_hda_codec_idt 60251 1 videodev 86588 1 uvcvideo ir_lirc_codec 12739 0 lirc_dev 18700 1 ir_lirc_codec ir_mce_kbd_decoder 12681 0 snd_seq_midi 13132 0 ir_sony_decoder 12462 0 ir_jvc_decoder 12459 0 snd_rawmidi 25424 1 snd_seq_midi ir_rc6_decoder 12459 0 wl 2646601 0 snd_seq_midi_event 14475 1 snd_seq_midi snd_seq 51567 2 snd_seq_midi,snd_seq_midi_event ir_rc5_decoder 12459 0 video 19068 0 snd_hda_intel 32765 5 snd_seq_device 14172 3 snd_seq_midi,snd_rawmidi,snd_seq snd_hda_codec 109562 3 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_intel rc_rc6_mce 12454 0 lib80211 14040 2 lib80211_crypt_tkip,wl snd_hwdep 13276 1 snd_hda_codec ir_nec_decoder 12459 0 snd_pcm 80845 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec ite_cir 24743 0 rc_core 21263 10 ir_lirc_codec,ir_mce_kbd_decoder,ir_sony_decoder,ir_jvc_decoder,ir_rc6_decoder,ir_rc5_decoder,rc_rc6_mce,ir_nec_decoder,ite_cir snd_timer 28931 2 snd_seq,snd_pcm wmi 18744 1 dell_wmi snd 62064 20 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_rawmidi,snd_seq,snd_seq_device,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_timer mac_hid 13077 0 soundcore 14635 1 snd snd_page_alloc 14108 2 snd_hda_intel,snd_pcm coretemp 13269 0 lp 17455 0 parport 40930 3 parport_pc,ppdev,lp tg3 141369 0 firewire_ohci 40172 0 sdhci_pci 18324 0 firewire_core 56906 1 firewire_ohci sdhci 28241 1 sdhci_pci crc_itu_t 12627 1 firewire_core lshw *-network description: Wireless interface product: BCM4313 802.11b/g/n Wireless LAN Controller vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:05:00.0 logical name: eth1 version: 01 serial: 70:f1:a1:a9:54:31 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=wl0 driverversion=5.100.82.38 ip=192.168.0.117 latency=0 multicast=yes wireless=IEEE 802.11 resources: irq:17 memory:f0900000-f0903fff *-network description: Ethernet interface product: NetLink BCM5784M Gigabit Ethernet PCIe vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:0b:00.0 logical name: eth0 version: 10 serial: b8:ac:6f:71:02:a6 capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm vpd msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.121 firmware=sb v2.19 latency=0 link=no multicast=yes port=twisted pair resources: irq:48 memory:f0d00000-f0d0ffff

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  • CodePlex Daily Summary for Wednesday, May 14, 2014

    CodePlex Daily Summary for Wednesday, May 14, 2014Popular ReleasesQuickMon: Version 3.10: Adding the ability to see 'history' of Collector states (including details of errors or warnings at that time). The history size is configurable (default is switched off) and the Windows Service completely ignores keeping history (no UI or user to access it anyway). The Collector stats window now displays this history plus multiple collector stats windows can be opened at the same time. Additionally fixed a bug in the event log collector that reported an 'Error' state when an 'out of bounds' ...xFunc: xFunc 2.15.4: Fixed bug in Processor.csTFS Planning and Disaster Recovery Avoidance Guide: v1.4.BETA - TFS, DR and Azure IaaS Planning Guides: Welcome to the TFS Planning and DR Avoidance Guidance What is new? A new crisper, more compact style, which is easier to consume on multiple devices without sacrificing any content. Also included are the new TFS on Azure IaaS guide and supplementary guides. Note Capacity planning workbook and posters are included in the Everything Zip package. Quality-Bar Detail Documentation has been reviewed by Visual Studio ALM Rangers Documentation has been through an independent technical review ...WinAudit: WinAudit Freeware v3.0: WinAudit.exe v3.0 MD5: 88750CCF49FF7418199B2645755830FA Known Issues: 1. Report creation can be very slow when right-to-left (Hebrew) characters are present. 2. Emsisoft Anti-Malware may stop and/or quarantine WinAudit. This happens when WinAudit attempts to obtain a list if running programmes. You will need to set an exception rule in Emsisoft to allow WinAudit to run.MVCwCMS - ASP.NET MVC CMS: MVCwCMS 2.2.2: Updated CKFinder config. For the installation instructions visit the documentation page: https://mvcwcms.codeplex.com/documentationTerraMap (Terraria World Map Viewer): TerraMap 1.0.4: Added support for the new Terraria v1.2.4 update. New items, walls, and tiles Fixed Issue 35206: Hightlight/Find doesn't work for Demon Altars Fixed finding Demon Hearts/Shadow Orbs Added ability to find Enchanted Swords (in the stone) and Water Bolt books Fixed installer not uninstalling older versions The setup file will make sure .NET 4 is installed, install TerraMap, create desktop and start menu shortcuts, add a .wld file association, and launch TerraMap. If you prefer the zip ...WPF Localization Extension: v2.2.1: Issue #9277 Issue #9292 Issue #9311 Issue #9312 Issue #9313 Issue #9314CtrlAltStudio Viewer: CtrlAltStudio Viewer 1.2.1.41167 Release: This release of the CtrlAltStudio Viewer includes the following significant features: Oculus Rift support. Stereoscopic 3D display support. Variable walking / flying speed. Xbox 360 Controller support. Kinect for Windows support. Based on Firestorm viewer 4.6.5 codebase. For more details, see the release notes linked to below. Release notes: http://ctrlaltstudio.com/viewer/release-notes/1-2-1-41167-release Support info: http://ctrlaltstudio.com/viewer/support Privacy policy: http:/...ExtJS based ASP.NET Controls: FineUI v4.0.6: FineUI(???) ?? ExtJS ??? ASP.NET ??? FineUI??? ?? No JavaScript,No CSS,No UpdatePanel,No ViewState,No WebServices ??????? ?????? IE 8.0+、Chrome、Firefox、Opera、Safari ???? Apache License v2.0 ?:ExtJS ?? GPL v3 ?????(http://www.sencha.com/license) ???? ??:http://fineui.com/ ??:http://fineui.com/bbs/ ??:http://fineui.com/demo/ ??:http://fineui.com/doc/ ??:http://fineui.codeplex.com/ FineUI ???? ExtJS ????????,???? ExtJS ?,?????: 1. ????? FineUI ? ExtJS ? http://fineui.com/bbs/forum.ph...Office App Model Samples: Office App Model Samples v2.0: Office App Model Samples v2.0Readable Passphrase Generator: KeePass Plugin 0.13.0: Version 0.13.0 Added "mutators" which add uppercase and numbers to passphrases (to help complying with upper, lower, number complexity rules). Additional API methods which help consuming the generator from 3rd party c# projects. 13,160 words in the default dictionary (~600 more than previous release).CS-Script for Notepad++ (C# intellisense and code execution): Release v1.0.25.0: Release v1.0.25.0 MemberInfo/MethodInfo popup is now positioned properly to fit the screen In MethodInfo popup method signatures are word-wrapped Implemented Debug text value visualizer Pining sub-values from Watch PanelWrapper for the PAYMILL API: Paymill API Wrapper: Add Description in PreauthorizationHow to develop an autodialer / predictive dialer in C#: VoIP AutoDialer in C Sharp: This is the downloadable source code for this example project that is intended to help you in developing your own VoIP autodialer application in C#.R.NET: R.NET 1.5.12: R.NET 1.5.12 is a beta release towards R.NET 1.6. You are encouraged to use 1.5.12 now and give feedback. See the documentation for setup and usage instructions. Main changes for R.NET 1.5.12: The C stack limit was not disabled on Windows. For reasons possibly peculiar to R, this means that non-concurrent access to R from multiple threads was not stable. This is now fixed, with the fix validated with a unit test. Thanks to Odugen, skyguy94, and previously others (evolvedmicrobe, tomasp) fo...CTI Text Encryption: CTI Text Encryption 5.2: Change log: 5.2 - Remove Cut button. - Fixed Reset All button does not reset encrypted text column. - Switch button location between Copy and Paste. - Enable users to use local fonts to display characters of their language correctly. (A font settings file will be saved at the same folder of this program.) 5.1 - Improve encryption process. - Minor UI update. - Version 5.1 is not compatible with older version. 5.0 - Improve encryption algorithm. - Simply inner non-encryption related mec...SEToolbox: SEToolbox 01.029.006 Release 1: Fix to allow keyboard search on load dialog. (type the first few letters of your save) Fixed check for new release. Changed the way ship details are loaded to alleviate load time for worlds with very large ships (100,000+ blocks). Fixed Image importer, was incorrectly listing 'Asteroid' as import option. Minor changes to menus (text and appearance) for clarity and OS consistency. Added in reading of world palette for color dialog editor. WIP on subsystem editor. Can now multiselec...Tiny Wifi Host: Tiny Wifi Host 3.0.0.0: Tiny Wifi Hotspot Creator (Portable) v3 size: 50KB-140KB New Features: Friendly name for connected devices instead of Mac-Address (Double click selected device to enter friendly name) Saves device names to devices.xml Better error reporting+solutions Warning sound when number of connected devices exceed a certain number. (useful when only certain number of devices must be connected at a time) Many Bug Fixes. NoAudio files does not include connect, disconnect and warning audio to dec...Media Companion: Media Companion MC3.597b: Thank you for being patient, againThere are a number of fixes in place with this release. and some new features added. Most are self explanatory, so check out the options in Preferences. Couple of new Features:* Movie - Allow save Title and Sort Title in Title Case format. * Movie - Allow save fanart.jpg if movie in folder. * TV - display episode source. Get episode source from episode filename. Fixed:* Movie - Added Fill Tags from plot keywords to Batch Rescraper. * Movie - Fixed TMDB s...SimCityPak: SimCityPak 0.3.0.0: Contains several bugfixes, newly identified properties and some UI improvements. Main new features UI overhaul for the main index list: Icons for each different index, including icons for different property files Tooltips for all relevant fields Removed clutter Identified hundreds of additional properties (thanks to MaxisGuillaume) - this should make modding gameplay easierNew ProjectsAlumno-Materia-Inscripcion: NADIA DEJATE DE JODEEERAndroid_Training_Leasing: Android Training LeasingBob The Simple Text Game: Bob The Simple Text Game is a Simple Text GameConference Booking System: Web application with the purpose of easily managing meetings in an office with multiple companiesCRM Web API Lead Capture Example: Sample Visual Studio 2013 project that provides an example of how you could use Web API and Microsoft Azure to capture HTML form data.FoosballEye: Foosball ranking application - allow to create simple ranking of foosball players base on played matches.Frequency Analyzer: Tool to perform frequency analysis on any text-based cryptogram. fromen_playground: We do stuff!!!!Galaktika ERP Helper: ??????????????? ???????, ??????????????? ??? ?????????? ?????????? ????????? ??????????, ???????????? ?????? ?? ??????? «????????? ERP»gitprojtest5132014: awdfHtml Markup Minifier (Orchard Module): Orchard module designed to reduce size of output HTML to bare minimum while maintaining same functionality. Faster loading, less bandwidth use.ID3 Hunter: The ID3 Hunter is a simple application that uses the Last.FM music database to automatically detect song metadata for MP3 files.Jquery Dirty Flag: Smart Way to Manage Dirty Flag Using JqueryJsxyUIS: ??????????????????????NetDirkFramework: NetDirkFramework?????.NET/ASP.NETMVC/WebAPI/ADO.NET/EF、jQuery?jEasyUI??????、??????MIS????????????。?????,?????????????????????????????????????????????。ocbizweb: ocbizwebPower Pole Survey: This is a showcase of my knowledge in MVVM Patterns.prestamosapi: prestamosapiRedLineTest: This is a test of the online collaboration tooling from MS. We are all using Visual Studio 2010.SharePoint Database Explorer: Connect to any SharePoint 2010 or 2013 content database to view and download documents, metadata and list items.Systematize: to arrange in accord with a definite plan or scheme : order systematically <the need to systematize their work>Visualizers: This project is used for how we want visualize our Data in debug mode For Visual studio 2010,zSILENCER: reverse MKULTRA??????-??????【??】??????????: ???????????????,????,???????、???????????,???????????,????,?????,???????。 ????-????【??】????????: ?????????????????????,????????????,?????、??、????,?????,??????! ?????-?????【??】?????????: ???????????????????,???、???!???????,????????????????,????????????,???! ?????-?????【??】?????????: ????????????、?????、?????、?????、?????、????,???????????,?????,??????! ????-????【??】????????: ????????【.????.????.????.????.】??【??】:、??、??、??、??、??、??、??、??、??、??、?????。 ??????-??????【??】??????????: ????????????????????????,????,????,????,???????,?????,?????.??????。 ??????-??????【??】??????????: ????????????????、?????,????????????????????,????,????,??????。 ????-????【??】????????: ????????????????,????,??.??.??.??.??.??.??.???,????,???????! ?????-?????【??】?????????: ???????????????????????????:???????,??????,????,????,????,?????! ?????-?????【??】?????????: ?????????????,????????,?????,???,???????????,???????????,?????,??????! ??????-??????【??】??????????: ??????????,??????????????????????,???????????????,?????????????! ??????-??????【??】??????????: ??????????????????????,?????, ... ????????????,????,????,?????,???????。 ????-????【??】????????: ???????????????????,?????????/?,,???????????,??????????????! ?????-?????【??】?????????: ????????????????????,?????????、??、??、????,??????????,?????????????! ?????-?????【??】?????????: ????????????????、????、????、??????????,???,?????,???????????????. ????-????【??】????????: ?????????????????,?????????????,????,?????????,?????????????,?????,?????! ??????-??????【??】??????????: ???????????,?????????????? ??。????????、????、????、?????????? ???????。 ??????-??????【??】??????????: ???????????????????????:????、????、??????????????,????????。????????! ????-????【??】????????: ????????????????、?????、?????、????、?????,??????????。????????????????! ?????-?????【??】?????????: ??????????????????????????,??????????,????,????,?????????、??????,??????。 ?????-?????【??】?????????: ????????????????????????????,??????????,????,????,?????????、??????,??????。

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  • CodePlex Daily Summary for Thursday, May 15, 2014

    CodePlex Daily Summary for Thursday, May 15, 2014Popular ReleasesVisualizers: Visualizer: This dll is the core of the project just copy and paste it in the following folder %Microsoft Visual Studio%\Common7\Packages\Debugger\Visualizers where %Microsoft Visual Studio% is the Visual studio installation folderQuickMon: Version 3.10: Adding the ability to see 'history' of Collector states (including details of errors or warnings at that time). The history size is configurable (default is switched off) and the Windows Service completely ignores keeping history (no UI or user to access it anyway). The Collector stats window now displays this history plus multiple collector stats windows can be opened at the same time. Additionally fixed a bug in the event log collector that reported an 'Error' state when an 'out of bounds' ...xFunc: xFunc 2.15.4: Fixed bug in Processor.csTFS Planning and Disaster Recovery Avoidance Guide: v1.4.BETA - TFS, DR and Azure IaaS Planning Guides: Welcome to the TFS Planning and DR Avoidance Guidance What is new? A new crisper, more compact style, which is easier to consume on multiple devices without sacrificing any content. Also included are the new TFS on Azure IaaS guide and supplementary guides. Note Capacity planning workbook and posters are included in the Everything Zip package. Quality-Bar Detail Documentation has been reviewed by Visual Studio ALM Rangers Documentation has been through an independent technical review ...WinAudit: WinAudit Freeware v3.0: WinAudit.exe v3.0 MD5: 88750CCF49FF7418199B2645755830FA Known Issues: 1. Report creation can be very slow when right-to-left (Hebrew) characters are present. 2. Emsisoft Anti-Malware may stop and/or quarantine WinAudit. This happens when WinAudit attempts to obtain a list if running programmes. You will need to set an exception rule in Emsisoft to allow WinAudit to run.MVCwCMS - ASP.NET MVC CMS: MVCwCMS 2.2.2: Updated CKFinder config. For the installation instructions visit the documentation page: https://mvcwcms.codeplex.com/documentationTerraMap (Terraria World Map Viewer): TerraMap 1.0.4: Added support for the new Terraria v1.2.4 update. New items, walls, and tiles Fixed Issue 35206: Hightlight/Find doesn't work for Demon Altars Fixed finding Demon Hearts/Shadow Orbs Added ability to find Enchanted Swords (in the stone) and Water Bolt books Fixed installer not uninstalling older versions The setup file will make sure .NET 4 is installed, install TerraMap, create desktop and start menu shortcuts, add a .wld file association, and launch TerraMap. If you prefer the zip ...WPF Localization Extension: v2.2.1: Issue #9277 Issue #9292 Issue #9311 Issue #9312 Issue #9313 Issue #9314CtrlAltStudio Viewer: CtrlAltStudio Viewer 1.2.1.41167 Release: This release of the CtrlAltStudio Viewer includes the following significant features: Oculus Rift support. Stereoscopic 3D display support. Variable walking / flying speed. Xbox 360 Controller support. Kinect for Windows support. Based on Firestorm viewer 4.6.5 codebase. For more details, see the release notes linked to below. Release notes: http://ctrlaltstudio.com/viewer/release-notes/1-2-1-41167-release Support info: http://ctrlaltstudio.com/viewer/support Privacy policy: http:/...ExtJS based ASP.NET Controls: FineUI v4.0.6: FineUI(???) ?? ExtJS ??? ASP.NET ??? FineUI??? ?? No JavaScript,No CSS,No UpdatePanel,No ViewState,No WebServices ??????? ?????? IE 8.0+、Chrome、Firefox、Opera、Safari ???? Apache License v2.0 ?:ExtJS ?? GPL v3 ?????(http://www.sencha.com/license) ???? ??:http://fineui.com/ ??:http://fineui.com/bbs/ ??:http://fineui.com/demo/ ??:http://fineui.com/doc/ ??:http://fineui.codeplex.com/ FineUI ???? ExtJS ????????,???? ExtJS ?,?????: 1. ????? FineUI ? ExtJS ? http://fineui.com/bbs/forum.ph...Office App Model Samples: Office App Model Samples v2.0: Office App Model Samples v2.0Readable Passphrase Generator: KeePass Plugin 0.13.0: Version 0.13.0 Added "mutators" which add uppercase and numbers to passphrases (to help complying with upper, lower, number complexity rules). Additional API methods which help consuming the generator from 3rd party c# projects. 13,160 words in the default dictionary (~600 more than previous release).CS-Script for Notepad++ (C# intellisense and code execution): Release v1.0.25.0: Release v1.0.25.0 MemberInfo/MethodInfo popup is now positioned properly to fit the screen In MethodInfo popup method signatures are word-wrapped Implemented Debug text value visualizer Pining sub-values from Watch PanelWrapper for the PAYMILL API: Paymill API Wrapper: Add Description in PreauthorizationHow to develop an autodialer / predictive dialer in C#: VoIP AutoDialer in C Sharp: This is the downloadable source code for this example project that is intended to help you in developing your own VoIP autodialer application in C#.R.NET: R.NET 1.5.12: R.NET 1.5.12 is a beta release towards R.NET 1.6. You are encouraged to use 1.5.12 now and give feedback. See the documentation for setup and usage instructions. Main changes for R.NET 1.5.12: The C stack limit was not disabled on Windows. For reasons possibly peculiar to R, this means that non-concurrent access to R from multiple threads was not stable. This is now fixed, with the fix validated with a unit test. Thanks to Odugen, skyguy94, and previously others (evolvedmicrobe, tomasp) fo...SEToolbox: SEToolbox 01.029.006 Release 1: Fix to allow keyboard search on load dialog. (type the first few letters of your save) Fixed check for new release. Changed the way ship details are loaded to alleviate load time for worlds with very large ships (100,000+ blocks). Fixed Image importer, was incorrectly listing 'Asteroid' as import option. Minor changes to menus (text and appearance) for clarity and OS consistency. Added in reading of world palette for color dialog editor. WIP on subsystem editor. Can now multiselec...Thaumcraft4 Research: Alpha 2 release, lots of awesome improvements: Performance inprovements asynchronous running of the search Search result-cap ( usefull for long routes, it wont try to find 3000 results ) statistics addedTiny Wifi Host: Tiny Wifi Host 3.0.0.0: Tiny Wifi Hotspot Creator (Portable) v3 size: 50KB-140KB New Features: Friendly name for connected devices instead of Mac-Address (Double click selected device to enter friendly name) Saves device names to devices.xml Better error reporting+solutions Warning sound when number of connected devices exceed a certain number. (useful when only certain number of devices must be connected at a time) Many Bug Fixes. NoAudio files does not include connect, disconnect and warning audio to dec...Media Companion: Media Companion MC3.597b: Thank you for being patient, againThere are a number of fixes in place with this release. and some new features added. Most are self explanatory, so check out the options in Preferences. Couple of new Features:* Movie - Allow save Title and Sort Title in Title Case format. * Movie - Allow save fanart.jpg if movie in folder. * TV - display episode source. Get episode source from episode filename. Fixed:* Movie - Added Fill Tags from plot keywords to Batch Rescraper. * Movie - Fixed TMDB s...New ProjectsBLADE View Engine - An independent RAZOR alternative: An alternative parser and view engine to Asp.net Razor that does not depend on Asp.net or .NET 4.5BPL++: A basic object orientated programming language built upon a virtual machine using C#Caedisi - A Cellular Automata Editor and Simulator for Network Decontamination: A research tool that explores the use of cellular automata in order to decontaminate a network attacked or infected by a virus. Cosmos Software Distrobution 1.0: No content until project released!ETCQuality: ETC QUALITY STAT SYSTEM. ????????????,??????????????。F.A.Q.: F.A.Q. project about Frequently asked questions. Help Viewer Redirector: Enables use of Help Viewer 2.0 or 2.1 with SQL Server instead of Help Viewer 1.0Jet.Payment.Cielo: Projeto contém integração com o serviço e-commerce Cielo, desenvolvido em C#. Criamos esse Helper para nossa própria necessidade. Nos ajude a melhorá-lo.Learning with Pati: Learning Javascript with PatiLeRenard: LeRenard is a collection of solutions (from core helper, extension methods) to libraries, all written in C# to help build applications.MCMP.NET: MCMP.NET allows ASP.NET applications to be added as contexts using mod_cluster.PowerShell Deployment Automation Framework: This project contains resources related to my blog at www.powershellcoach.compravda-f: ??????????? ? ?????? ??? ?????????? ??????sdir: Colorful, sorted and optionally rich directory enumeration for Windows.SienSchoofsProject: school project for .NET ExpertSorting collection of any type by several fields: Sorting collection of any type by several fields with using Reflection and Expression TreesTPS BarCode Scanner: This is going to be a collaboration platform for TPS team. We want to develop a simple low cost bar code generator and scanner system. This project is currentlVerifyDomainOutlookAddIn: ??????????????????????????????。Ynote Packages: Ynote Packages are a collection of tools which a play a crucial role in extending Ynote Classic and understanding it's true potential.??????-??????【??】??????????: ??????????????????,???、???!???????,????????????????,????????????,???! ?????-?????【??】?????????: ????????????、?????、?????、?????、?????、????,???????????,?????,??????! ?????-?????【??】?????????: ???????????????,?????????????? ??。??????????、????、????、?????????? ???????。 ??????-??????【??】??????????: ????????????????????,?????,???????,???????????,??????! ??????-??????【??】??????????: ??????????????、??????、????、?????、?????!????,????????????????!????。 ?????-?????【??】?????????: ???????????????????,?????????????????????,?????,????,???????. ?????-?????【??】?????????: ???????????????????、????????、????????、????????、???????,????????????。 ??????-??????【??】??????????: ????????????????、?????、?????、????、?????,??????????。????????????????! ??????-??????【??】??????????: ???????????????????????:????、????、??????????????,????????。????????! ????-????【??】????????: ?????????????????????,????????????,?????、??、????,?????,??????! ?????-?????【??】?????????: ???????????????????,??????????,????????、????,??????????,??????????。 ?????-?????【??】?????????: ???????,??????:?????,?????,??????,??????????,????????。????????! ????: ????????,????????????????????????,?????????,????????????????。????????????????????,??????????????,?????????????。 ????????????,?:   ??????   ??????   ????????   ??????-??????【??】??????????: ??????????????????????,???????????????,????????????????????! ??????-??????【??】??????????: ??????????????????、????,??100%????,??????,????????????,???????????! ????-????【??】????????: ???????????、??????????????????,????????,?????,??????,????,????,????! ?????-?????【??】?????????: ????????????????,??????????、??????,??????????、????、????、???????。 ?????--?????【??】?????????: ?????????????????????,???????????????,???????,?????,?????,????? !!!

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  • Parsing Concerns

    - by Jesse
    If you’ve ever written an application that accepts date and/or time inputs from an external source (a person, an uploaded file, posted XML, etc.) then you’ve no doubt had to deal with parsing some text representing a date into a data structure that a computer can understand. Similarly, you’ve probably also had to take values from those same data structure and turn them back into their original formats. Most (all?) suitably modern development platforms expose some kind of parsing and formatting functionality for turning text into dates and vice versa. In .NET, the DateTime data structure exposes ‘Parse’ and ‘ToString’ methods for this purpose. This post will focus mostly on parsing, though most of the examples and suggestions below can also be applied to the ToString method. The DateTime.Parse method is pretty permissive in the values that it will accept (though apparently not as permissive as some other languages) which makes it pretty easy to take some text provided by a user and turn it into a proper DateTime instance. Here are some examples (note that the resulting DateTime values are shown using the RFC1123 format): DateTime.Parse("3/12/2010"); //Fri, 12 Mar 2010 00:00:00 GMT DateTime.Parse("2:00 AM"); //Sat, 01 Jan 2011 02:00:00 GMT (took today's date as date portion) DateTime.Parse("5-15/2010"); //Sat, 15 May 2010 00:00:00 GMT DateTime.Parse("7/8"); //Fri, 08 Jul 2011 00:00:00 GMT DateTime.Parse("Thursday, July 1, 2010"); //Thu, 01 Jul 2010 00:00:00 GMT Dealing With Inaccuracy While the DateTime struct has the ability to store a date and time value accurate down to the millisecond, most date strings provided by a user are not going to specify values with that much precision. In each of the above examples, the Parse method was provided a partial value from which to construct a proper DateTime. This means it had to go ahead and assume what you meant and fill in the missing parts of the date and time for you. This is a good thing, especially when we’re talking about taking input from a user. We can’t expect that every person using our software to provide a year, day, month, hour, minute, second, and millisecond every time they need to express a date. That said, it’s important for developers to understand what assumptions the software might be making and plan accordingly. I think the assumptions that were made in each of the above examples were pretty reasonable, though if we dig into this method a little bit deeper we’ll find that there are a lot more assumptions being made under the covers than you might have previously known. One of the biggest assumptions that the DateTime.Parse method has to make relates to the format of the date represented by the provided string. Let’s consider this example input string: ‘10-02-15’. To some people. that might look like ‘15-Feb-2010’. To others, it might be ‘02-Oct-2015’. Like many things, it depends on where you’re from. This Is America! Most cultures around the world have adopted a “little-endian” or “big-endian” formats. (Source: Date And Time Notation By Country) In this context,  a “little-endian” date format would list the date parts with the least significant first while the “big-endian” date format would list them with the most significant first. For example, a “little-endian” date would be “day-month-year” and “big-endian” would be “year-month-day”. It’s worth nothing here that ISO 8601 defines a “big-endian” format as the international standard. While I personally prefer “big-endian” style date formats, I think both styles make sense in that they follow some logical standard with respect to ordering the date parts by their significance. Here in the United States, however, we buck that trend by using what is, in comparison, a completely nonsensical format of “month/day/year”. Almost no other country in the world uses this format. I’ve been fortunate in my life to have done some international travel, so I’ve been aware of this difference for many years, but never really thought much about it. Until recently, I had been developing software for exclusively US-based audiences and remained blissfully ignorant of the different date formats employed by other countries around the world. The web application I work on is being rolled out to users in different countries, so I was recently tasked with updating it to support different date formats. As it turns out, .NET has a great mechanism for dealing with different date formats right out of the box. Supporting date formats for different cultures is actually pretty easy once you understand this mechanism. Pulling the Curtain Back On the Parse Method Have you ever taken a look at the different flavors (read: overloads) that the DateTime.Parse method comes in? In it’s simplest form, it takes a single string parameter and returns the corresponding DateTime value (if it can divine what the date value should be). You can optionally provide two additional parameters to this method: an ‘System.IFormatProvider’ and a ‘System.Globalization.DateTimeStyles’. Both of these optional parameters have some bearing on the assumptions that get made while parsing a date, but for the purposes of this article I’m going to focus on the ‘System.IFormatProvider’ parameter. The IFormatProvider exposes a single method called ‘GetFormat’ that returns an object to be used for determining the proper format for displaying and parsing things like numbers and dates. This interface plays a big role in the globalization capabilities that are built into the .NET Framework. The cornerstone of these globalization capabilities can be found in the ‘System.Globalization.CultureInfo’ class. To put it simply, the CultureInfo class is used to encapsulate information related to things like language, writing system, and date formats for a certain culture. Support for many cultures are “baked in” to the .NET Framework and there is capacity for defining custom cultures if needed (thought I’ve never delved into that). While the details of the CultureInfo class are beyond the scope of this post, so for now let me just point out that the CultureInfo class implements the IFormatInfo interface. This means that a CultureInfo instance created for a given culture can be provided to the DateTime.Parse method in order to tell it what date formats it should expect. So what happens when you don’t provide this value? Let’s crack this method open in Reflector: When no IFormatInfo parameter is provided (i.e. we use the simple DateTime.Parse(string) overload), the ‘DateTimeFormatInfo.CurrentInfo’ is used instead. Drilling down a bit further we can see the implementation of the DateTimeFormatInfo.CurrentInfo property: From this property we can determine that, in the absence of an IFormatProvider being specified, the DateTime.Parse method will assume that the provided date should be treated as if it were in the format defined by the CultureInfo object that is attached to the current thread. The culture specified by the CultureInfo instance on the current thread can vary depending on several factors, but if you’re writing an application where a single instance might be used by people from different cultures (i.e. a web application with an international user base), it’s important to know what this value is. Having a solid strategy for setting the current thread’s culture for each incoming request in an internationally used ASP .NET application is obviously important, and might make a good topic for a future post. For now, let’s think about what the implications of not having the correct culture set on the current thread. Let’s say you’re running an ASP .NET application on a server in the United States. The server was setup by English speakers in the United States, so it’s configured for US English. It exposes a web page where users can enter order data, one piece of which is an anticipated order delivery date. Most users are in the US, and therefore enter dates in a ‘month/day/year’ format. The application is using the DateTime.Parse(string) method to turn the values provided by the user into actual DateTime instances that can be stored in the database. This all works fine, because your users and your server both think of dates in the same way. Now you need to support some users in South America, where a ‘day/month/year’ format is used. The best case scenario at this point is a user will enter March 13, 2011 as ‘25/03/2011’. This would cause the call to DateTime.Parse to blow up since that value doesn’t look like a valid date in the US English culture (Note: In all likelihood you might be using the DateTime.TryParse(string) method here instead, but that method behaves the same way with regard to date formats). “But wait a minute”, you might be saying to yourself, “I thought you said that this was the best case scenario?” This scenario would prevent users from entering orders in the system, which is bad, but it could be worse! What if the order needs to be delivered a day earlier than that, on March 12, 2011? Now the user enters ‘12/03/2011’. Now the call to DateTime.Parse sees what it thinks is a valid date, but there’s just one problem: it’s not the right date. Now this order won’t get delivered until December 3, 2011. In my opinion, that kind of data corruption is a much bigger problem than having the Parse call fail. What To Do? My order entry example is a bit contrived, but I think it serves to illustrate the potential issues with accepting date input from users. There are some approaches you can take to make this easier on you and your users: Eliminate ambiguity by using a graphical date input control. I’m personally a fan of a jQuery UI Datepicker widget. It’s pretty easy to setup, can be themed to match the look and feel of your site, and has support for multiple languages and cultures. Be sure you have a way to track the culture preference of each user in your system. For a web application this could be done using something like a cookie or session state variable. Ensure that the current user’s culture is being applied correctly to DateTime formatting and parsing code. This can be accomplished by ensuring that each request has the handling thread’s CultureInfo set properly, or by using the Format and Parse method overloads that accept an IFormatProvider instance where the provided value is a CultureInfo object constructed using the current user’s culture preference. When in doubt, favor formats that are internationally recognizable. Using the string ‘2010-03-05’ is likely to be recognized as March, 5 2011 by users from most (if not all) cultures. Favor standard date format strings over custom ones. So far we’ve only talked about turning a string into a DateTime, but most of the same “gotchas” apply when doing the opposite. Consider this code: someDateValue.ToString("MM/dd/yyyy"); This will output the same string regardless of what the current thread’s culture is set to (with the exception of some cultures that don’t use the Gregorian calendar system, but that’s another issue all together). For displaying dates to users, it would be better to do this: someDateValue.ToString("d"); This standard format string of “d” will use the “short date format” as defined by the culture attached to the current thread (or provided in the IFormatProvider instance in the proper method overload). This means that it will honor the proper month/day/year, year/month/day, or day/month/year format for the culture. Knowing Your Audience The examples and suggestions shown above can go a long way toward getting an application in shape for dealing with date inputs from users in multiple cultures. There are some instances, however, where taking approaches like these would not be appropriate. In some cases, the provider or consumer of date values that pass through your application are not people, but other applications (or other portions of your own application). For example, if your site has a page that accepts a date as a query string parameter, you’ll probably want to format that date using invariant date format. Otherwise, the same URL could end up evaluating to a different page depending on the user that is viewing it. In addition, if your application exports data for consumption by other systems, it’s best to have an agreed upon format that all systems can use and that will not vary depending upon whether or not the users of the systems on either side prefer a month/day/year or day/month/year format. I’ll look more at some approaches for dealing with these situations in a future post. If you take away one thing from this post, make it an understanding of the importance of knowing where the dates that pass through your system come from and are going to. You will likely want to vary your parsing and formatting approach depending on your audience.

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  • Failing Sata HDD

    - by DaveCol
    I think my HDD is fried... Could someone confirm or help me restore it? I was using Hardware RAID 1 Configuration [2 x 160GB SATA HDD] on a CentOS 4 Installation. All of a sudden I started seeing bad sectors on the second HDD which stopped being mirrored. I have removed the RAID array and have tested with SMART which showed the following error: 187 Unknown_Attribute 0x003a 001 001 051 Old_age Always FAILING_NOW 4645 I have no clue what this means, or if I can recover from it. Could someone give me some ideas on how to fix this, or what HDD to get to replace this? Complete SMART report: Smartctl version 5.33 [i686-redhat-linux-gnu] Copyright (C) 2002-4 Bruce Allen Home page is http://smartmontools.sourceforge.net/ === START OF INFORMATION SECTION === Device Model: GB0160CAABV Serial Number: 6RX58NAA Firmware Version: HPG1 User Capacity: 160,041,885,696 bytes Device is: Not in smartctl database [for details use: -P showall] ATA Version is: 7 ATA Standard is: ATA/ATAPI-7 T13 1532D revision 4a Local Time is: Tue Oct 19 13:42:42 2010 COT SMART support is: Available - device has SMART capability. SMART support is: Enabled === START OF READ SMART DATA SECTION === SMART overall-health self-assessment test result: PASSED See vendor-specific Attribute list for marginal Attributes. General SMART Values: Offline data collection status: (0x82) Offline data collection activity was completed without error. Auto Offline Data Collection: Enabled. Self-test execution status: ( 0) The previous self-test routine completed without error or no self-test has ever been run. Total time to complete Offline data collection: ( 433) seconds. Offline data collection capabilities: (0x5b) SMART execute Offline immediate. Auto Offline data collection on/off support. Suspend Offline collection upon new command. Offline surface scan supported. Self-test supported. No Conveyance Self-test supported. Selective Self-test supported. SMART capabilities: (0x0003) Saves SMART data before entering power-saving mode. Supports SMART auto save timer. Error logging capability: (0x01) Error logging supported. General Purpose Logging supported. Short self-test routine recommended polling time: ( 2) minutes. Extended self-test routine recommended polling time: ( 54) minutes. SMART Attributes Data Structure revision number: 10 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000f 100 253 006 Pre-fail Always - 0 3 Spin_Up_Time 0x0002 097 097 000 Old_age Always - 0 4 Start_Stop_Count 0x0033 100 100 020 Pre-fail Always - 152 5 Reallocated_Sector_Ct 0x0033 095 095 036 Pre-fail Always - 214 7 Seek_Error_Rate 0x000f 078 060 030 Pre-fail Always - 73109713 9 Power_On_Hours 0x0032 083 083 000 Old_age Always - 15133 10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0 12 Power_Cycle_Count 0x0033 100 100 020 Pre-fail Always - 154 184 Unknown_Attribute 0x0032 038 038 000 Old_age Always - 62 187 Unknown_Attribute 0x003a 001 001 051 Old_age Always FAILING_NOW 4645 189 Unknown_Attribute 0x0022 100 100 000 Old_age Always - 0 190 Unknown_Attribute 0x001a 061 055 000 Old_age Always - 656408615 194 Temperature_Celsius 0x0000 039 045 000 Old_age Offline - 39 (Lifetime Min/Max 0/22) 195 Hardware_ECC_Recovered 0x0032 070 059 000 Old_age Always - 12605265 197 Current_Pending_Sector 0x0000 100 100 000 Old_age Offline - 1 198 Offline_Uncorrectable 0x0000 100 100 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x0000 200 200 000 Old_age Offline - 62 SMART Error Log Version: 1 ATA Error Count: 4645 (device log contains only the most recent five errors) CR = Command Register [HEX] FR = Features Register [HEX] SC = Sector Count Register [HEX] SN = Sector Number Register [HEX] CL = Cylinder Low Register [HEX] CH = Cylinder High Register [HEX] DH = Device/Head Register [HEX] DC = Device Command Register [HEX] ER = Error register [HEX] ST = Status register [HEX] Powered_Up_Time is measured from power on, and printed as DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes, SS=sec, and sss=millisec. It "wraps" after 49.710 days. Error 4645 occurred at disk power-on lifetime: 15132 hours (630 days + 12 hours) When the command that caused the error occurred, the device was active or idle. After command completion occurred, registers were: ER ST SC SN CL CH DH -- -- -- -- -- -- -- 40 51 00 7b 86 b1 ea Error: UNC at LBA = 0x0ab1867b = 179406459 Commands leading to the command that caused the error were: CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name -- -- -- -- -- -- -- -- ---------------- -------------------- c8 00 02 7b 86 b1 ea 00 00:38:52.796 READ DMA ec 03 45 00 00 00 a0 00 00:38:52.796 IDENTIFY DEVICE ef 03 45 00 00 00 a0 00 00:38:52.794 SET FEATURES [Set transfer mode] ec 00 00 7b 86 b1 a0 00 00:38:49.991 IDENTIFY DEVICE c8 00 04 79 86 b1 ea 00 00:38:49.935 READ DMA Error 4644 occurred at disk power-on lifetime: 15132 hours (630 days + 12 hours) When the command that caused the error occurred, the device was active or idle. After command completion occurred, registers were: ER ST SC SN CL CH DH -- -- -- -- -- -- -- 40 51 00 7b 86 b1 ea Error: UNC at LBA = 0x0ab1867b = 179406459 Commands leading to the command that caused the error were: CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name -- -- -- -- -- -- -- -- ---------------- -------------------- c8 00 04 79 86 b1 ea 00 00:38:41.517 READ DMA ec 03 45 00 00 00 a0 00 00:38:41.515 IDENTIFY DEVICE ef 03 45 00 00 00 a0 00 00:38:41.515 SET FEATURES [Set transfer mode] ec 00 00 7b 86 b1 a0 00 00:38:49.991 IDENTIFY DEVICE c8 00 06 77 86 b1 ea 00 00:38:49.935 READ DMA Error 4643 occurred at disk power-on lifetime: 15132 hours (630 days + 12 hours) When the command that caused the error occurred, the device was active or idle. After command completion occurred, registers were: ER ST SC SN CL CH DH -- -- -- -- -- -- -- 40 51 00 7b 86 b1 ea Error: UNC at LBA = 0x0ab1867b = 179406459 Commands leading to the command that caused the error were: CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name -- -- -- -- -- -- -- -- ---------------- -------------------- c8 00 06 77 86 b1 ea 00 00:38:41.517 READ DMA ec 03 45 00 00 00 a0 00 00:38:41.515 IDENTIFY DEVICE ef 03 45 00 00 00 a0 00 00:38:41.515 SET FEATURES [Set transfer mode] ec 00 00 7b 86 b1 a0 00 00:38:41.513 IDENTIFY DEVICE c8 00 06 77 86 b1 ea 00 00:38:38.706 READ DMA Error 4642 occurred at disk power-on lifetime: 15132 hours (630 days + 12 hours) When the command that caused the error occurred, the device was active or idle. After command completion occurred, registers were: ER ST SC SN CL CH DH -- -- -- -- -- -- -- 40 51 00 7b 86 b1 ea Error: UNC at LBA = 0x0ab1867b = 179406459 Commands leading to the command that caused the error were: CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name -- -- -- -- -- -- -- -- ---------------- -------------------- c8 00 06 77 86 b1 ea 00 00:38:41.517 READ DMA ec 03 45 00 00 00 a0 00 00:38:41.515 IDENTIFY DEVICE ef 03 45 00 00 00 a0 00 00:38:41.515 SET FEATURES [Set transfer mode] ec 00 00 7b 86 b1 a0 00 00:38:41.513 IDENTIFY DEVICE c8 00 06 77 86 b1 ea 00 00:38:38.706 READ DMA Error 4641 occurred at disk power-on lifetime: 15132 hours (630 days + 12 hours) When the command that caused the error occurred, the device was active or idle. After command completion occurred, registers were: ER ST SC SN CL CH DH -- -- -- -- -- -- -- 40 51 00 7b 86 b1 ea Error: UNC at LBA = 0x0ab1867b = 179406459 Commands leading to the command that caused the error were: CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name -- -- -- -- -- -- -- -- ---------------- -------------------- c8 00 06 77 86 b1 ea 00 00:38:41.517 READ DMA ec 03 45 00 00 00 a0 00 00:38:41.515 IDENTIFY DEVICE ef 03 45 00 00 00 a0 00 00:38:41.515 SET FEATURES [Set transfer mode] ec 00 00 7b 86 b1 a0 00 00:38:41.513 IDENTIFY DEVICE c8 00 06 77 86 b1 ea 00 00:38:38.706 READ DMA SMART Self-test log structure revision number 1 Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error # 1 Short offline Completed without error 00% 15131 - # 2 Short offline Completed without error 00% 15131 - SMART Selective self-test log data structure revision number 1 SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS 1 0 0 Not_testing 2 0 0 Not_testing 3 0 0 Not_testing 4 0 0 Not_testing 5 0 0 Not_testing Selective self-test flags (0x0): After scanning selected spans, do NOT read-scan remainder of disk. If Selective self-test is pending on power-up, resume after 0 minute delay.

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  • Hard Disk DRDY error: is it a crash

    - by pranjal
    I am using IBM Thinkpad, 1.7GHz, 512 RAM with Linux Mint 9 installed. I have two partitions in addition to root. One of the partitions became read-only yesterday, after which I rebooted my system. It is extremely slow along with DRDY Error : Is my Hard disk crashed ? Error Log while booting. Differences between boot sector and its backup. failed command : READ DMA BMDMA : stat 0X25 ata 1.00 : status : { DRDY ERR } ata 1.00 : status :{ UNC } Buffer I/O error on logical device, logical block 65467 smartctl output for the partition: mint mint # smartctl -a /dev/sda1 smartctl version 5.38 [i686-pc-linux-gnu] Copyright (C) 2002-8 Bruce Allen Home page is http://smartmontools.sourceforge.net/ === START OF INFORMATION SECTION === Device Model: TOSHIBA MK4026GAX RoHS Serial Number: X5LY1623T Firmware Version: PA107E User Capacity: 40,007,761,920 bytes Device is: Not in smartctl database [for details use: -P showall] ATA Version is: 6 ATA Standard is: Exact ATA specification draft version not indicated Local Time is: Thu Feb 17 06:48:25 2011 UTC SMART support is: Available - device has SMART capability. SMART support is: Enabled === START OF READ SMART DATA SECTION === SMART overall-health self-assessment test result: PASSED General SMART Values: Offline data collection status: (0x84) Offline data collection activity was suspended by an interrupting command from host. Auto Offline Data Collection: Enabled. Self-test execution status: ( 0) The previous self-test routine completed without error or no self-test has ever been run. Total time to complete Offline data collection: ( 153) seconds. Offline data collection capabilities: (0x1b) SMART execute Offline immediate. Auto Offline data collection on/off support. Suspend Offline collection upon new command. Offline surface scan supported. Self-test supported. No Conveyance Self-test supported. No Selective Self-test supported. SMART capabilities: (0x0003) Saves SMART data before entering power-saving mode. Supports SMART auto save timer. Error logging capability: (0x01) Error logging supported. No General Purpose Logging support. Short self-test routine recommended polling time: ( 2) minutes. Extended self-test routine recommended polling time: ( 30) minutes. SMART Attributes Data Structure revision number: 16 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000b 100 100 050 Pre-fail Always - 0 2 Throughput_Performance 0x0005 100 100 050 Pre-fail Offline - 0 3 Spin_Up_Time 0x0027 100 100 001 Pre-fail Always - 310 4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 3968 5 Reallocated_Sector_Ct 0x0033 100 100 050 Pre-fail Always - 40 7 Seek_Error_Rate 0x000b 100 100 050 Pre-fail Always - 0 8 Seek_Time_Performance 0x0005 100 100 050 Pre-fail Offline - 0 9 Power_On_Hours 0x0032 082 082 000 Old_age Always - 7257 10 Spin_Retry_Count 0x0033 179 100 030 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 3484 192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 489 193 Load_Cycle_Count 0x0032 064 064 000 Old_age Always - 367150 194 Temperature_Celsius 0x0022 100 100 000 Old_age Always - 36 (Lifetime Min/Max 14/57) 196 Reallocated_Event_Count 0x0032 100 100 000 Old_age Always - 33 197 Current_Pending_Sector 0x0032 100 100 000 Old_age Always - 82 198 Offline_Uncorrectable 0x0030 100 100 000 Old_age Offline - 1 199 UDMA_CRC_Error_Count 0x0032 200 253 000 Old_age Always - 0 220 Disk_Shift 0x0002 100 100 000 Old_age Always - 101 222 Loaded_Hours 0x0032 085 085 000 Old_age Always - 6146 223 Load_Retry_Count 0x0032 100 100 000 Old_age Always - 0 224 Load_Friction 0x0022 100 100 000 Old_age Always - 0 226 Load-in_Time 0x0026 100 100 000 Old_age Always - 227 240 Head_Flying_Hours 0x0001 100 100 001 Pre-fail Offline - 0 SMART Error Log Version: 1 ATA Error Count: 2371 (device log contains only the most recent five errors) CR = Command Register [HEX] FR = Features Register [HEX] SC = Sector Count Register [HEX] SN = Sector Number Register [HEX] CL = Cylinder Low Register [HEX] CH = Cylinder High Register [HEX] DH = Device/Head Register [HEX] DC = Device Command Register [HEX] ER = Error register [HEX] ST = Status register [HEX] Powered_Up_Time is measured from power on, and printed as DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes, SS=sec, and sss=millisec. It "wraps" after 49.710 days. Error 2371 occurred at disk power-on lifetime: 7256 hours (302 days + 8 hours) When the command that caused the error occurred, the device was active or idle. After command completion occurred, registers were: ER ST SC SN CL CH DH -- -- -- -- -- -- -- 40 51 05 1a 1b 00 e0 Error: UNC 5 sectors at LBA = 0x00001b1a = 6938 Commands leading to the command that caused the error were: CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name -- -- -- -- -- -- -- -- ---------------- -------------------- c8 00 05 1a 1b 00 e0 00 00:03:10.061 READ DMA f8 00 00 00 00 00 e0 00 00:03:10.061 READ NATIVE MAX ADDRESS ec 00 00 00 00 00 a0 02 00:03:10.053 IDENTIFY DEVICE ef 03 45 00 00 00 a0 02 00:03:10.053 SET FEATURES [Set transfer mode] f8 00 00 00 00 00 e0 00 00:03:10.053 READ NATIVE MAX ADDRESS Error 2370 occurred at disk power-on lifetime: 7256 hours (302 days + 8 hours) When the command that caused the error occurred, the device was active or idle. After command completion occurred, registers were: ER ST SC SN CL CH DH -- -- -- -- -- -- -- 40 51 05 1a 1b 00 e0 Error: UNC 5 sectors at LBA = 0x00001b1a = 6938 Commands leading to the command that caused the error were: CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name -- -- -- -- -- -- -- -- ---------------- -------------------- c8 00 05 1a 1b 00 e0 00 00:03:03.328 READ DMA f8 00 00 00 00 00 e0 00 00:03:03.327 READ NATIVE MAX ADDRESS ec 00 00 00 00 00 a0 02 00:03:03.320 IDENTIFY DEVICE ef 03 45 00 00 00 a0 02 00:03:03.319 SET FEATURES [Set transfer mode] f8 00 00 00 00 00 e0 00 00:03:03.319 READ NATIVE MAX ADDRESS Error 2369 occurred at disk power-on lifetime: 7256 hours (302 days + 8 hours) When the command that caused the error occurred, the device was active or idle. After command completion occurred, registers were: ER ST SC SN CL CH DH -- -- -- -- -- -- -- 40 51 05 1a 1b 00 e0 Error: UNC 5 sectors at LBA = 0x00001b1a = 6938 Commands leading to the command that caused the error were: CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name -- -- -- -- -- -- -- -- ---------------- -------------------- c8 00 05 1a 1b 00 e0 00 00:02:56.582 READ DMA f8 00 00 00 00 00 e0 00 00:02:56.582 READ NATIVE MAX ADDRESS ec 00 00 00 00 00 a0 02 00:02:56.574 IDENTIFY DEVICE ef 03 45 00 00 00 a0 02 00:02:56.574 SET FEATURES [Set transfer mode] f8 00 00 00 00 00 e0 00 00:02:56.574 READ NATIVE MAX ADDRESS Error 2368 occurred at disk power-on lifetime: 7256 hours (302 days + 8 hours) When the command that caused the error occurred, the device was active or idle. After command completion occurred, registers were: ER ST SC SN CL CH DH -- -- -- -- -- -- -- 40 51 05 1a 1b 00 e0 Error: UNC 5 sectors at LBA = 0x00001b1a = 6938 Commands leading to the command that caused the error were: CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name -- -- -- -- -- -- -- -- ---------------- -------------------- c8 00 05 1a 1b 00 e0 00 00:02:49.809 READ DMA f8 00 00 00 00 00 e0 00 00:02:49.809 READ NATIVE MAX ADDRESS ec 00 00 00 00 00 a0 02 00:02:49.801 IDENTIFY DEVICE ef 03 45 00 00 00 a0 02 00:02:49.801 SET FEATURES [Set transfer mode] f8 00 00 00 00 00 e0 00 00:02:49.801 READ NATIVE MAX ADDRESS Error 2367 occurred at disk power-on lifetime: 7256 hours (302 days + 8 hours) When the command that caused the error occurred, the device was active or idle. After command completion occurred, registers were: ER ST SC SN CL CH DH -- -- -- -- -- -- -- 40 51 05 1a 1b 00 e0 Error: UNC 5 sectors at LBA = 0x00001b1a = 6938 Commands leading to the command that caused the error were: CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name -- -- -- -- -- -- -- -- ---------------- -------------------- c8 00 05 1a 1b 00 e0 00 00:02:43.056 READ DMA f8 00 00 00 00 00 e0 00 00:02:43.056 READ NATIVE MAX ADDRESS ec 00 00 00 00 00 a0 02 00:02:43.048 IDENTIFY DEVICE ef 03 45 00 00 00 a0 02 00:02:43.048 SET FEATURES [Set transfer mode] f8 00 00 00 00 00 e0 00 00:02:43.047 READ NATIVE MAX ADDRESS SMART Self-test log structure revision number 1 No self-tests have been logged. [To run self-tests, use: smartctl -t] Device does not support Selective Self Tests/Logging Do I need to get a new Hard Disk my PC ?

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  • External USB attached drive works in Windows XP but not in Windows 7. How to fix?

    - by irrational John
    Earlier this week I purchased this "N52300 EZQuest Pro" external hard drive enclosure from here. I can connect the enclosure using USB 2.0 and access the files in both NTFS partitions on the MBR partitioned drive when I use either Windows XP (SP3) or Mac OS X 10.6. So it works as expected in XP & Snow Leopard. However, the enclosure does not work in Windows 7 (Home Premium) either 64-bit or 32-bit or in Ubuntu 10.04 (kernel 2.6.32-23-generic). I'm thinking this must be a Windows 7 driver problem because the enclosure works in XP & Snow Leopard. I do know that no special drivers are required to use this enclosure. It is supported using the USB mass storage drivers included with XP and OS X. It should also work fine using the mass storage support in Windows 7, no? FWIW, I have also tried using 32-bit Windows 7 on both my desktop, a Gigabyte GA-965P-DS3 with a Pentium Dual-Core E6500 @ 2.93GHz, and on my early 2008 MacBook. I see the same failure in both cases that I see with 64-bit Windows 7. So it doesn't appear to be specific to one hardware platform. I'm hoping someone out there can help me either get the enclosure to work in Windows 7 or convince me that the enclosure hardware is bad and should be RMAed. At the moment though an RMA seems pointless since this appears to be a (Windows 7) device driver problem. I have tried to track down any updates to the mass storage drivers included with Windows 7 but have so far come up empty. Heck, I can't even figure out how to place a bug report with Microsoft since apparently the grace period for Windows 7 email support is only a few months. I came across a link to some USB troubleshooting steps in another question. I haven't had a chance to look over the suggestions on that site or try them yet. Maybe tomorrow if I have time ... ;-) I'll finish up with some more details about the problem. When I connect the enclosure using USB to Windows 7 at first it appears everything worked. Windows detects the drive and installs a driver for it. Looking in Device Manager there is an entry under the Hard Drives section with the title, Hitachi HDT721010SLA360 USB Device. When you open Windows Disk Management the first time after the enclosure has been attached the drive appears as "Not initialize" and I'm prompted to initialize it. This is bogus. After all, the drive worked fine in XP so I know it has already been initialized, partitioned, and formatted. So of course I never try to initialize it "again". (It's a 1 GB drive and I don't want to lose the data on it). Except for this first time, the drive never shows up in Disk Management again unless I uninstall the Hitachi HDT721010SLA360 USB Device entry under Hard Drives, unplug, and then replug the enclosure. If I do that then the process in the previous paragraph repeats. In Ubuntu the enclosure never shows up at all at the file system level. Below are an excerpt from kern.log and an excerpt from the result of lsusb -v after attaching the enclosure. It appears that Ubuntu at first recongnizes the enclosure and is attempting to attach it, but encounters errors which prevent it from doing so. Unfortunately, I don't know whether any of this info is useful or not. excerpt from kern.log [ 2684.240015] usb 1-2: new high speed USB device using ehci_hcd and address 22 [ 2684.393618] usb 1-2: configuration #1 chosen from 1 choice [ 2684.395399] scsi17 : SCSI emulation for USB Mass Storage devices [ 2684.395570] usb-storage: device found at 22 [ 2684.395572] usb-storage: waiting for device to settle before scanning [ 2689.390412] usb-storage: device scan complete [ 2689.390894] scsi 17:0:0:0: Direct-Access Hitachi HDT721010SLA360 ST6O PQ: 0 ANSI: 4 [ 2689.392237] sd 17:0:0:0: Attached scsi generic sg7 type 0 [ 2689.395269] sd 17:0:0:0: [sde] 1953525168 512-byte logical blocks: (1.00 TB/931 GiB) [ 2689.395632] sd 17:0:0:0: [sde] Write Protect is off [ 2689.395636] sd 17:0:0:0: [sde] Mode Sense: 11 00 00 00 [ 2689.395639] sd 17:0:0:0: [sde] Assuming drive cache: write through [ 2689.412003] sd 17:0:0:0: [sde] Assuming drive cache: write through [ 2689.412009] sde: sde1 sde2 [ 2689.455759] sd 17:0:0:0: [sde] Assuming drive cache: write through [ 2689.455765] sd 17:0:0:0: [sde] Attached SCSI disk [ 2692.620017] usb 1-2: reset high speed USB device using ehci_hcd and address 22 [ 2707.740014] usb 1-2: device descriptor read/64, error -110 [ 2722.970103] usb 1-2: device descriptor read/64, error -110 [ 2723.200027] usb 1-2: reset high speed USB device using ehci_hcd and address 22 [ 2738.320019] usb 1-2: device descriptor read/64, error -110 [ 2753.550024] usb 1-2: device descriptor read/64, error -110 [ 2753.780020] usb 1-2: reset high speed USB device using ehci_hcd and address 22 [ 2758.810147] usb 1-2: device descriptor read/8, error -110 [ 2763.940142] usb 1-2: device descriptor read/8, error -110 [ 2764.170014] usb 1-2: reset high speed USB device using ehci_hcd and address 22 [ 2769.200141] usb 1-2: device descriptor read/8, error -110 [ 2774.330137] usb 1-2: device descriptor read/8, error -110 [ 2774.440069] usb 1-2: USB disconnect, address 22 [ 2774.440503] sd 17:0:0:0: Device offlined - not ready after error recovery [ 2774.590023] usb 1-2: new high speed USB device using ehci_hcd and address 23 [ 2789.710020] usb 1-2: device descriptor read/64, error -110 [ 2804.940020] usb 1-2: device descriptor read/64, error -110 [ 2805.170026] usb 1-2: new high speed USB device using ehci_hcd and address 24 [ 2820.290019] usb 1-2: device descriptor read/64, error -110 [ 2835.520027] usb 1-2: device descriptor read/64, error -110 [ 2835.750018] usb 1-2: new high speed USB device using ehci_hcd and address 25 [ 2840.780085] usb 1-2: device descriptor read/8, error -110 [ 2845.910079] usb 1-2: device descriptor read/8, error -110 [ 2846.140023] usb 1-2: new high speed USB device using ehci_hcd and address 26 [ 2851.170112] usb 1-2: device descriptor read/8, error -110 [ 2856.300077] usb 1-2: device descriptor read/8, error -110 [ 2856.410027] hub 1-0:1.0: unable to enumerate USB device on port 2 [ 2856.730033] usb 3-2: new full speed USB device using uhci_hcd and address 11 [ 2871.850017] usb 3-2: device descriptor read/64, error -110 [ 2887.080014] usb 3-2: device descriptor read/64, error -110 [ 2887.310011] usb 3-2: new full speed USB device using uhci_hcd and address 12 [ 2902.430021] usb 3-2: device descriptor read/64, error -110 [ 2917.660013] usb 3-2: device descriptor read/64, error -110 [ 2917.890016] usb 3-2: new full speed USB device using uhci_hcd and address 13 [ 2922.911623] usb 3-2: device descriptor read/8, error -110 [ 2928.051753] usb 3-2: device descriptor read/8, error -110 [ 2928.280013] usb 3-2: new full speed USB device using uhci_hcd and address 14 [ 2933.301876] usb 3-2: device descriptor read/8, error -110 [ 2938.431993] usb 3-2: device descriptor read/8, error -110 [ 2938.540073] hub 3-0:1.0: unable to enumerate USB device on port 2 excerpt from lsusb -v Bus 001 Device 017: ID 0dc4:0000 Macpower Peripherals, Ltd Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x0dc4 Macpower Peripherals, Ltd idProduct 0x0000 bcdDevice 0.01 iManufacturer 1 EZ QUEST iProduct 2 USB Mass Storage iSerial 3 220417 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 32 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 5 Config0 bmAttributes 0xc0 Self Powered MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 8 Mass Storage bInterfaceSubClass 6 SCSI bInterfaceProtocol 80 Bulk (Zip) iInterface 4 Interface0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 bNumConfigurations 1 Device Status: 0x0001 Self Powered Update: Results using Firewire to connect. Today I recieved a 1394b 9 pin to 1394a 6 pin cable which allowed me to connect the "EZQuest Pro" via Firewire. Everything works. When I use Firewire I can connect whether I'm using Windows 7 or Ubuntu 10.04. I even tried booting my Gigabyte desktop as an OS X 10.6.3 Hackintosh and it worked there as well. (Though if I recall correctly, it also worked when using USB 2.0 and booting OS X on the desktop. Certainly it works with USB 2.0 and my MacBook.) I believe the firmware on the device is at the latest level available, v1.07. I base this on the excerpt below from the OS X System Profiler which shows Firmware Revision: 0x107. Bottom line: It's nice that the enclosure is actually usable when I connect with Firewire. But I am still searching for an answer as to why it does not work correctly when using USB 2.0 in Windows 7 (and Ubuntu ... but really Windows 7 is my biggest concern). OXFORD IDE Device 1: Manufacturer: EZ QUEST Model: 0x0 GUID: 0x1D202E0220417 Maximum Speed: Up to 800 Mb/sec Connection Speed: Up to 400 Mb/sec Sub-units: OXFORD IDE Device 1 Unit: Unit Software Version: 0x10483 Unit Spec ID: 0x609E Firmware Revision: 0x107 Product Revision Level: ST6O Sub-units: OXFORD IDE Device 1 SBP-LUN: Capacity: 1 TB (1,000,204,886,016 bytes) Removable Media: Yes BSD Name: disk3 Partition Map Type: MBR (Master Boot Record) S.M.A.R.T. status: Not Supported

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  • problem processing xml in flex3

    - by john
    Hi All, First time here asking a question and still learning on how to format things better... so sorry about the format as it does not look too well. I have started learning flex and picked up a book and tried to follow the examples in it. However, I got stuck with a problem. I have a jsp page which returns xml which basically have a list of products. I am trying to parse this xml, in other words go through products, and create Objects for each product node and store them in an ArrayCollection. The problem I believe I am having is I am not using the right way of navigating through xml. The xml that is being returned from the server looks like this: <?xml version="1.0" encoding="ISO-8859-1"?><result type="success"> <products> <product> <id>6</id> <cat>electronics</cat> <name>Plasma Television</name> <desc>65 inch screen with 1080p</desc> <price>$3000.0</price> </product> <product> <id>7</id> <cat>electronics</cat> <name>Surround Sound Stereo</name> <desc>7.1 surround sound receiver with wireless speakers</desc> <price>$1000.0</price> </product> <product> <id>8</id> <cat>appliances</cat> <name>Refrigerator</name> <desc>Bottom drawer freezer with water and ice on the door</desc> <price>$1200.0</price> </product> <product> <id>9</id> <cat>appliances</cat> <name>Dishwasher</name> <desc>Large capacity with water saver setting</desc> <price>$500.0</price> </product> <product> <id>10</id> <cat>furniture</cat> <name>Leather Sectional</name> <desc>Plush leather with room for 6 people</desc> <price>$1500.0</price> </product> </products></result> And I have flex code that tries to iterate over products like following: private function productListHandler(e:JavaFlexStoreEvent):void { productData = new ArrayCollection(); trace(JavaServiceHandler(e.currentTarget).response); for each (var item:XML in JavaServiceHandler(e.currentTarget).response..product ) { productData.addItem( { id:item.id, item:item.name, price:item.price, description:item.desc }); } } with trace, I can see the xml being returned from the server. However, I cannot get inside the loop as if the xml was empty. In other words, JavaServiceHandler(e.currentTarget).response..product must be returning nothing. Can someone please help/point out what I could be doing wrong. My JavaServiceHandler class looks like this: package com.wiley.jfib.store.data { import com.wiley.jfib.store.events.JavaFlexStoreEvent; import flash.events.Event; import flash.events.EventDispatcher; import flash.net.URLLoader; import flash.net.URLRequest; public class JavaServiceHandler extends EventDispatcher { public var serviceURL:String = ""; public var response:XML; public function JavaServiceHandler() { } public function callServer():void { if(serviceURL == "") { throw new Error("serviceURL is a required parameter"); return; } var loader:URLLoader = new URLLoader(); loader.addEventListener(Event.COMPLETE, handleResponse); loader.load(new URLRequest(serviceURL)); // var httpService:HTTPService = new HTTPService(); // httpService.url = serviceURL; // httpService.resultFormat = "e4x"; // httpService.addEventListener(Event.COMPLETE, handleResponse); // httpService.send(); } private function handleResponse(e:Event):void { var loader:URLLoader = URLLoader(e.currentTarget); response = XML(loader.data); dispatchEvent(new JavaFlexStoreEvent(JavaFlexStoreEvent.DATA_LOADED) ); // var httpService:HTTPService = HTTPService(e.currentTarget); // response = httpService.lastResult.product; // dispatchEvent(new JavaFlexStoreEvent(JavaFlexStoreEvent.DATA_LOADED) ); } } } Even though I refer to this as mine and it is not in reality. This is from a Flex book as a code sample which does not work, go figure. Any help is appreciated. Thanks john

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  • Hiding Options of a Select with JQuery

    - by Syed Abdul Rahman
    Okay, let's start with an example. Keep in mind, this is only an example. <select id = "selection1">     <option value = "1" id = "1">Number 1</option>     <option value = "2" id = "2">Number 2</option>     <option value = "3" id = "3">Number 3</option> </select> Now from here, we have a dropdown with 3 options. What I want to do now is to hide an option. Adding style = "display:none" will not help. The option would not appear in the dropdownlist, but using the arrow keys, you can still select it. Essentially, it does exactly what the code says. It isn't displayed, and it stops there. A JQuery function of $("#1").hide() will not work. Plus, I don't only want to hide the option, I want to completely remove it. Any possibility on doing so? Do I have to use parent/sibling/child elements? If so, I'm still not sure how. Any help on this would be greatly appreciated. Thanks.           Another question - It's related Ok, so I found out that there is a .remove() available in JQuery. Works well. But what if I want to bring it back? if(condition)     {     $(this).remove();     } I can loops this. Shouldn't be complicated. But the thing of which I am trying to do is this: Maximum Capacity of Class: (Input field here) Select Room: (Dropdown here) What I'd like for it to do is to update is Dropdown using a function such as .change() or .keyup. I could create the dropdown only after something is typed. At a change or a keyup, execute the dropdown accordingly. But what I am doing is this: $roomarray = mysql_query("SELECT *     FROM         (         SELECT *,         CASE         WHEN type = 'Classroom' THEN 1         WHEN type = 'Computer laboratory' THEN 2         WHEN type = 'Lecture Hall' THEN 3         WHEN type = 'Auditorium' THEN 4         END AS ClassTypeValue         FROM rooms         ) t     ORDER BY ClassTypeValue, maxppl, roomID"); echo "<select id = \"room\">"; while ($rooms = mysql_fetch_array($roomarray)) { ?> <option value=<?php echo $rooms['roomID']; ?> id=<?php echo $rooms['roomID']; ?>><?php echo $rooms['type']; echo "&nbsp;"; echo $rooms['roomID']; echo "&nbsp;("; echo $rooms['maxppl']; echo ")"; ?></option> <?php } echo "</select>"; Yes, I know it is very messy. I plan to change it later on. But the issue now is this: Can I toggle the removal of the options according to what has been typed? Is it possible to do so with a dropdown made from a loop? Because I sure as hell can't keep executing SQL Queries. Or is that even an option? Because if it's possible, I still think it's a bad one.

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  • Scaling-out Your Services by Message Bus based WCF Transport Extension &ndash; Part 1 &ndash; Background

    - by Shaun
    Cloud computing gives us more flexibility on the computing resource, we can provision and deploy an application or service with multiple instances over multiple machines. With the increment of the service instances, how to balance the incoming message and workload would become a new challenge. Currently there are two approaches we can use to pass the incoming messages to the service instances, I would like call them dispatcher mode and pulling mode.   Dispatcher Mode The dispatcher mode introduces a role which takes the responsible to find the best service instance to process the request. The image below describes the sharp of this mode. There are four clients communicate with the service through the underlying transportation. For example, if we are using HTTP the clients might be connecting to the same service URL. On the server side there’s a dispatcher listening on this URL and try to retrieve all messages. When a message came in, the dispatcher will find a proper service instance to process it. There are three mechanism to find the instance: Round-robin: Dispatcher will always send the message to the next instance. For example, if the dispatcher sent the message to instance 2, then the next message will be sent to instance 3, regardless if instance 3 is busy or not at that moment. Random: Dispatcher will find a service instance randomly, and same as the round-robin mode it regardless if the instance is busy or not. Sticky: Dispatcher will send all related messages to the same service instance. This approach always being used if the service methods are state-ful or session-ful. But as you can see, all of these approaches are not really load balanced. The clients will send messages at any time, and each message might take different process duration on the server side. This means in some cases, some of the service instances are very busy while others are almost idle. For example, if we were using round-robin mode, it could be happened that most of the simple task messages were passed to instance 1 while the complex ones were sent to instance 3, even though instance 1 should be idle. This brings some problem in our architecture. The first one is that, the response to the clients might be longer than it should be. As it’s shown in the figure above, message 6 and 9 can be processed by instance 1 or instance 2, but in reality they were dispatched to the busy instance 3 since the dispatcher and round-robin mode. Secondly, if there are many requests came from the clients in a very short period, service instances might be filled by tons of pending tasks and some instances might be crashed. Third, if we are using some cloud platform to host our service instances, for example the Windows Azure, the computing resource is billed by service deployment period instead of the actual CPU usage. This means if any service instance is idle it is wasting our money! Last one, the dispatcher would be the bottleneck of our system since all incoming messages must be routed by the dispatcher. If we are using HTTP or TCP as the transport, the dispatcher would be a network load balance. If we wants more capacity, we have to scale-up, or buy a hardware load balance which is very expensive, as well as scaling-out the service instances. Pulling Mode Pulling mode doesn’t need a dispatcher to route the messages. All service instances are listening to the same transport and try to retrieve the next proper message to process if they are idle. Since there is no dispatcher in pulling mode, it requires some features on the transportation. The transportation must support multiple client connection and server listening. HTTP and TCP doesn’t allow multiple clients are listening on the same address and port, so it cannot be used in pulling mode directly. All messages in the transportation must be FIFO, which means the old message must be received before the new one. Message selection would be a plus on the transportation. This means both service and client can specify some selection criteria and just receive some specified kinds of messages. This feature is not mandatory but would be very useful when implementing the request reply and duplex WCF channel modes. Otherwise we must have a memory dictionary to store the reply messages. I will explain more about this in the following articles. Message bus, or the message queue would be best candidate as the transportation when using the pulling mode. First, it allows multiple application to listen on the same queue, and it’s FIFO. Some of the message bus also support the message selection, such as TIBCO EMS, RabbitMQ. Some others provide in memory dictionary which can store the reply messages, for example the Redis. The principle of pulling mode is to let the service instances self-managed. This means each instance will try to retrieve the next pending incoming message if they finished the current task. This gives us more benefit and can solve the problems we met with in the dispatcher mode. The incoming message will be received to the best instance to process, which means this will be very balanced. And it will not happen that some instances are busy while other are idle, since the idle one will retrieve more tasks to make them busy. Since all instances are try their best to be busy we can use less instances than dispatcher mode, which more cost effective. Since there’s no dispatcher in the system, there is no bottleneck. When we introduced more service instances, in dispatcher mode we have to change something to let the dispatcher know the new instances. But in pulling mode since all service instance are self-managed, there no extra change at all. If there are many incoming messages, since the message bus can queue them in the transportation, service instances would not be crashed. All above are the benefits using the pulling mode, but it will introduce some problem as well. The process tracking and debugging become more difficult. Since the service instances are self-managed, we cannot know which instance will process the message. So we need more information to support debug and track. Real-time response may not be supported. All service instances will process the next message after the current one has done, if we have some real-time request this may not be a good solution. Compare with the Pros and Cons above, the pulling mode would a better solution for the distributed system architecture. Because what we need more is the scalability, cost-effect and the self-management.   WCF and WCF Transport Extensibility Windows Communication Foundation (WCF) is a framework for building service-oriented applications. In the .NET world WCF is the best way to implement the service. In this series I’m going to demonstrate how to implement the pulling mode on top of a message bus by extending the WCF. I don’t want to deep into every related field in WCF but will highlight its transport extensibility. When we implemented an RPC foundation there are many aspects we need to deal with, for example the message encoding, encryption, authentication and message sending and receiving. In WCF, each aspect is represented by a channel. A message will be passed through all necessary channels and finally send to the underlying transportation. And on the other side the message will be received from the transport and though the same channels until the business logic. This mode is called “Channel Stack” in WCF, and the last channel in the channel stack must always be a transport channel, which takes the responsible for sending and receiving the messages. As we are going to implement the WCF over message bus and implement the pulling mode scaling-out solution, we need to create our own transport channel so that the client and service can exchange messages over our bus. Before we deep into the transport channel, let’s have a look on the message exchange patterns that WCF defines. Message exchange pattern (MEP) defines how client and service exchange the messages over the transportation. WCF defines 3 basic MEPs which are datagram, Request-Reply and Duplex. Datagram: Also known as one-way, or fire-forgot mode. The message sent from the client to the service, and no need any reply from the service. The client doesn’t care about the message result at all. Request-Reply: Very common used pattern. The client send the request message to the service and wait until the reply message comes from the service. Duplex: The client sent message to the service, when the service processing the message it can callback to the client. When callback the service would be like a client while the client would be like a service. In WCF, each MEP represent some channels associated. MEP Channels Datagram IInputChannel, IOutputChannel Request-Reply IRequestChannel, IReplyChannel Duplex IDuplexChannel And the channels are created by ChannelListener on the server side, and ChannelFactory on the client side. The ChannelListener and ChannelFactory are created by the TransportBindingElement. The TransportBindingElement is created by the Binding, which can be defined as a new binding or from a custom binding. For more information about the transport channel mode, please refer to the MSDN document. The figure below shows the transport channel objects when using the request-reply MEP. And this is the datagram MEP. And this is the duplex MEP. After investigated the WCF transport architecture, channel mode and MEP, we finally identified what we should do to extend our message bus based transport layer. They are: Binding: (Optional) Defines the channel elements in the channel stack and added our transport binding element at the bottom of the stack. But we can use the build-in CustomBinding as well. TransportBindingElement: Defines which MEP is supported in our transport and create the related ChannelListener and ChannelFactory. This also defines the scheme of the endpoint if using this transport. ChannelListener: Create the server side channel based on the MEP it’s. We can have one ChannelListener to create channels for all supported MEPs, or we can have ChannelListener for each MEP. In this series I will use the second approach. ChannelFactory: Create the client side channel based on the MEP it’s. We can have one ChannelFactory to create channels for all supported MEPs, or we can have ChannelFactory for each MEP. In this series I will use the second approach. Channels: Based on the MEPs we want to support, we need to implement the channels accordingly. For example, if we want our transport support Request-Reply mode we should implement IRequestChannel and IReplyChannel. In this series I will implement all 3 MEPs listed above one by one. Scaffold: In order to make our transport extension works we also need to implement some scaffold stuff. For example we need some classes to send and receive message though out message bus. We also need some codes to read and write the WCF message, etc.. These are not necessary but would be very useful in our example.   Message Bus There is only one thing remained before we can begin to implement our scaling-out support WCF transport, which is the message bus. As I mentioned above, the message bus must have some features to fulfill all the WCF MEPs. In my company we will be using TIBCO EMS, which is an enterprise message bus product. And I have said before we can use any message bus production if it’s satisfied with our requests. Here I would like to introduce an interface to separate the message bus from the WCF. This allows us to implement the bus operations by any kinds bus we are going to use. The interface would be like this. 1: public interface IBus : IDisposable 2: { 3: string SendRequest(string message, bool fromClient, string from, string to = null); 4:  5: void SendReply(string message, bool fromClient, string replyTo); 6:  7: BusMessage Receive(bool fromClient, string replyTo); 8: } There are only three methods for the bus interface. Let me explain one by one. The SendRequest method takes the responsible for sending the request message into the bus. The parameters description are: message: The WCF message content. fromClient: Indicates if this message was came from the client. from: The channel ID that this message was sent from. The channel ID will be generated when any kinds of channel was created, which will be explained in the following articles. to: The channel ID that this message should be received. In Request-Reply and Duplex MEP this is necessary since the reply message must be received by the channel which sent the related request message. The SendReply method takes the responsible for sending the reply message. It’s very similar as the previous one but no “from” parameter. This is because it’s no need to reply a reply message again in any MEPs. The Receive method takes the responsible for waiting for a incoming message, includes the request message and specified reply message. It returned a BusMessage object, which contains some information about the channel information. The code of the BusMessage class is 1: public class BusMessage 2: { 3: public string MessageID { get; private set; } 4: public string From { get; private set; } 5: public string ReplyTo { get; private set; } 6: public string Content { get; private set; } 7:  8: public BusMessage(string messageId, string fromChannelId, string replyToChannelId, string content) 9: { 10: MessageID = messageId; 11: From = fromChannelId; 12: ReplyTo = replyToChannelId; 13: Content = content; 14: } 15: } Now let’s implement a message bus based on the IBus interface. Since I don’t want you to buy and install the TIBCO EMS or any other message bus products, I will implement an in process memory bus. This bus is only for test and sample purpose. It can only be used if the service and client are in the same process. Very straightforward. 1: public class InProcMessageBus : IBus 2: { 3: private readonly ConcurrentDictionary<Guid, InProcMessageEntity> _queue; 4: private readonly object _lock; 5:  6: public InProcMessageBus() 7: { 8: _queue = new ConcurrentDictionary<Guid, InProcMessageEntity>(); 9: _lock = new object(); 10: } 11:  12: public string SendRequest(string message, bool fromClient, string from, string to = null) 13: { 14: var entity = new InProcMessageEntity(message, fromClient, from, to); 15: _queue.TryAdd(entity.ID, entity); 16: return entity.ID.ToString(); 17: } 18:  19: public void SendReply(string message, bool fromClient, string replyTo) 20: { 21: var entity = new InProcMessageEntity(message, fromClient, null, replyTo); 22: _queue.TryAdd(entity.ID, entity); 23: } 24:  25: public BusMessage Receive(bool fromClient, string replyTo) 26: { 27: InProcMessageEntity e = null; 28: while (true) 29: { 30: lock (_lock) 31: { 32: var entity = _queue 33: .Where(kvp => kvp.Value.FromClient == fromClient && (kvp.Value.To == replyTo || string.IsNullOrWhiteSpace(kvp.Value.To))) 34: .FirstOrDefault(); 35: if (entity.Key != Guid.Empty && entity.Value != null) 36: { 37: _queue.TryRemove(entity.Key, out e); 38: } 39: } 40: if (e == null) 41: { 42: Thread.Sleep(100); 43: } 44: else 45: { 46: return new BusMessage(e.ID.ToString(), e.From, e.To, e.Content); 47: } 48: } 49: } 50:  51: public void Dispose() 52: { 53: } 54: } The InProcMessageBus stores the messages in the objects of InProcMessageEntity, which can take some extra information beside the WCF message itself. 1: public class InProcMessageEntity 2: { 3: public Guid ID { get; set; } 4: public string Content { get; set; } 5: public bool FromClient { get; set; } 6: public string From { get; set; } 7: public string To { get; set; } 8:  9: public InProcMessageEntity() 10: : this(string.Empty, false, string.Empty, string.Empty) 11: { 12: } 13:  14: public InProcMessageEntity(string content, bool fromClient, string from, string to) 15: { 16: ID = Guid.NewGuid(); 17: Content = content; 18: FromClient = fromClient; 19: From = from; 20: To = to; 21: } 22: }   Summary OK, now I have all necessary stuff ready. The next step would be implementing our WCF message bus transport extension. In this post I described two scaling-out approaches on the service side especially if we are using the cloud platform: dispatcher mode and pulling mode. And I compared the Pros and Cons of them. Then I introduced the WCF channel stack, channel mode and the transport extension part, and identified what we should do to create our own WCF transport extension, to let our WCF services using pulling mode based on a message bus. And finally I provided some classes that need to be used in the future posts that working against an in process memory message bus, for the demonstration purpose only. In the next post I will begin to implement the transport extension step by step.   Hope this helps, Shaun All documents and related graphics, codes are provided "AS IS" without warranty of any kind. Copyright © Shaun Ziyan Xu. This work is licensed under the Creative Commons License.

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  • Issue 15: Oracle Exadata Marketing Campaigns

    - by rituchhibber
         PARTNER FOCUS Oracle ExadataMarketing Campaign Steve McNickleVP Europe, cVidya Steve McNickle is VP Europe for cVidya, an innovative provider of revenue intelligence solutions for telecom, media and entertainment service providers including AT&T, BT, Deutsche Telecom and Vodafone. The company's product portfolio helps operators and service providers maximise margins, improve customer experience and optimise ecosystem relationships through revenue assurance, fraud and security management, sales performance management, pricing analytics, and inter-carrier services. cVidya has partnered with Oracle for more than a decade. RESOURCES -- Oracle PartnerNetwork (OPN) Oracle Exastack Program Oracle Exastack Optimized Oracle Exastack Labs and Enablement Resources Oracle Engineered Systems Oracle Communications cVidya SUBSCRIBE FEEDBACK PREVIOUS ISSUES Are you ready for Oracle OpenWorld this October? -- -- Please could you tell us a little about cVidya's partnering history with Oracle, and expand on your Oracle Exastack accreditations? "cVidya was established just over ten years ago and we've had a strong relationship with Oracle almost since the very beginning. Through our Revenue Intelligence work with some of the world's largest service providers we collect tremendous amounts of information, amounting to billions of records per day. We help our clients to collect, store and analyse that data to ensure that their end customers are getting the best levels of service, are billed correctly, and are happy that they are on the correct price plan. We have been an Oracle Gold level partner for seven years, and crucially just two months ago we were also accredited as Oracle Exastack Optimized for MoneyMap, our core Revenue Assurance solution. Very soon we also expect to be Oracle Exastack Optimized DRMap, our Data Retention solution." What unique capabilities and customer benefits does Oracle Exastack add to your applications? "Oracle Exastack enables us to deliver radical benefits to our customers. A typical mobile operator in the UK might handle between 500 million and two billion call data record details daily. Each transaction needs to be validated, billed correctly and fraud checked. Because of the enormous volumes involved, our clients demand scalable infrastructure that allows them to efficiently acquire, store and process all that data within controlled cost, space and environmental constraints. We have proved that the Oracle Exadata system can process data up to seven times faster and load it as much as 20 times faster than other standard best-of-breed server approaches. With the Oracle Exadata Database Machine they can reduce their datacentre equipment from say, the six or seven cabinets that they needed in the past, down to just one. This dramatic simplification delivers incredible value to the customer by cutting down enormously on all of their significant cost, space, energy, cooling and maintenance overheads." "The Oracle Exastack Program has given our clients the ability to switch their focus from reactive to proactive. Traditionally they may have spent 80 percent of their day processing, and just 20 percent enabling end customers to see advanced analytics, and avoiding issues before they occur. With our solutions and Oracle Exadata they can now switch that balance around entirely, resulting not only in reduced revenue leakage, but a far higher focus on proactive leakage prevention. How has the Oracle Exastack Program transformed your customer business? "We can already see the impact. Oracle solutions allow our delivery teams to achieve successful deployments, happy customers and self-satisfaction, and the power of Oracle's Exa solutions is easy to measure in terms of their transformational ability. We gained our first sale into a major European telco by demonstrating the major performance gains that would transform their business. Clients can measure the ease of organisational change, the early prevention of business issues, the reduction in manpower required to provide protection and coverage across all their products and services, plus of course end customer satisfaction. If customers know that that service is provided accurately and that their bills are calculated correctly, then over time this satisfaction can be attributed to revenue intelligence and the underlying systems which provide it. Combine this with the further integration we have with the other layers of the Oracle stack, including the telecommunications offerings such as NCC, OCDM and BRM, and the result is even greater customer value—not to mention the increased speed to market and the reduced project risk." What does the Oracle Exastack community bring to cVidya, both in terms of general benefits, and also tangible new opportunities and partnerships? "A great deal. We have participated in the Oracle Exastack community heavily over the past year, and have had lots of meetings with Oracle and our peers around the globe. It brings us into contact with like-minded, innovative partners, who like us are not happy to just stand still and want to take fresh technology to their customer base in order to gain enhanced value. We identified three new partnerships in each of two recent meetings, and hope these will open up new opportunities, not only in areas that exactly match where we operate today, but also in some new associative areas that will expand our reach into new business sectors. Notably, thanks to the Exastack community we were invited on stage at last year's Oracle OpenWorld conference. Appearing so publically with Oracle senior VP Judson Althoff elevated awareness and visibility of cVidya and has enabled us to participate in a number of other events with Oracle over the past eight months. We've been involved in speaking opportunities, forums and exhibitions, providing us with invaluable opportunities that we wouldn't otherwise have got close to." How has Exastack differentiated cVidya as an ISV, and helped you to evolve your business to the next level? "When we are selling to our core customer base of Tier 1 telecommunications providers, we know that they want more than just software. They want an enduring partnership that will last many years, they want innovation, and a forward thinking partner who knows how to guide them on where they need to be to meet market demand three, five or seven years down the line. Membership of respected global bodies, such as the Telemanagement Forum enables us to lead standard adherence in our area of business, giving us a lot of credibility, but Oracle is also involved in this forum with its own telecommunications portfolio, strengthening our position still further. When we approach CEOs, CTOs and CIOs at the very largest Tier 1 operators, not only can we easily show them that our technology is fantastic, we can also talk about our strong partnership with Oracle, and our joint embracing of today's standards and tomorrow's innovation." Where would you like cVidya to be in one year's time? "We want to get all of our relevant products Oracle Exastack Optimized. Our MoneyMap Revenue Assurance solution is already Exastack Optimised, our DRMAP Data Retention Solution should be Exastack Optimised within the next month, and our FraudView Fraud Management solution within the next two to three months. We'd then like to extend our Oracle accreditation out to include other members of the Oracle Engineered Systems family. We are moving into the 'Big Data' space, and so we're obviously very keen to work closely with Oracle to conduct pilots, map new technologies onto Oracle Big Data platforms, and embrace and measure the benefits of other Oracle systems, namely Oracle Exalogic Elastic Cloud, the Oracle Exalytics In-Memory Machine and the Oracle SPARC SuperCluster. We would also like to examine how the Oracle Database Appliance might benefit our Tier 2 service provider customers. Finally, we'd also like to continue working with the Oracle Communications Global Business Unit (CGBU), furthering our integration with Oracle billing products so that we are able to quickly deploy fraud solutions into Oracle's Engineered System stack, give operational benefits to our clients that are pre-integrated, more cost-effective, and can be rapidly deployed rapidly and producing benefits in three months, not nine months." Chris Baker ,Senior Vice President, Oracle Worldwide ISV-OEM-Java Sales Chris Baker is the Global Head of ISV/OEM Sales responsible for working with ISV/OEM partners to maximise Oracle's business through those partners, whilst maximising those partners' business to their end users. Chris works with partners, customers, innovators, investors and employees to develop innovative business solutions using Oracle products, services and skills. Firstly, could you please explain Oracle's current strategy for ISV partners, globally and in EMEA? "Oracle customers use independent software vendor (ISV) applications to run their businesses. They use them to generate revenue and to fulfil obligations to their own customers. Our strategy is very straight-forward. We want all of our ISV partners and OEMs to concentrate on the things that they do the best – building applications to meet the unique industry and functional requirements of their customer. We want to ensure that we deliver a best in class application platform so the ISV is free to concentrate their effort on their application functionality and user experience We invest over four billion dollars in research and development every year, and we want our ISVs to benefit from all of that investment in operating systems, virtualisation, databases, middleware, engineered systems, and other hardware. By doing this, we help them to reduce their costs, gain more consistency and agility for quicker implementations, and also rapidly differentiate themselves from other application vendors. It's all about simplification because we believe that around 25 to 30 percent of the development costs incurred by many ISVs are caused by customising infrastructure and have nothing to do with their applications. Our strategy is to enable our ISV partners to standardise their application platform using engineered architecture, so they can write once to the Oracle stack and deploy seamlessly in the cloud, on-premise, or in hybrid deployments. It's really important that architecture is the same in order to keep cost and time overheads at a minimum, so we provide standardisation and an environment that enables our ISVs to concentrate on the core business that makes them the most money and brings them success." How do you believe this strategy is helping the ISVs to work hand-in-hand with Oracle to ensure that end customers get the industry-leading solutions that they need? "We work with our ISVs not just to help them be successful, but also to help them market themselves. We have something called the 'Oracle Exastack Ready Program', which enables ISVs to publicise themselves as 'Ready' to run the core software platforms that run on Oracle's engineered systems including Exadata and Exalogic. So, for example, they can become 'Database Ready' which means that they use the latest version of Oracle Database and therefore can run their application without modification on Exadata or the Oracle Database Appliance. Alternatively, they can become WebLogic Ready, Oracle Linux Ready and Oracle Solaris Ready which means they run on the latest release and therefore can run their application, with no new porting work, on Oracle Exalogic. Those 'Ready' logos are important in helping ISVs advertise to their customers that they are using the latest technologies which have been fully tested. We now also have Exadata Ready and Exalogic Ready programmes which allow ISVs to promote the certification of their applications on these platforms. This highlights these partners to Oracle customers as having solutions that run fluently on the Oracle Exadata Database Machine, the Oracle Exalogic Elastic Cloud or one of our other engineered systems. This makes it easy for customers to identify solutions and provides ISVs with an avenue to connect with Oracle customers who are rapidly adopting engineered systems. We have also taken this programme to the next level in the shape of 'Oracle Exastack Optimized' for partners whose applications run best on the Oracle stack and have invested the time to fully optimise application performance. We ensure that Exastack Optimized partner status is promoted and supported by press releases, and we help our ISVs go to market and differentiate themselves through the use our technology and the standardisation it delivers. To date we have had several hundred organisations successfully work through our Exastack Optimized programme." How does Oracle's strategy of offering pre-integrated open platform software and hardware allow ISVs to bring their products to market more quickly? "One of the problems for many ISVs is that they have to think very carefully about the technology on which their solutions will be deployed, particularly in the cloud or hosted environments. They have to think hard about how they secure these environments, whether the concern is, for example, middleware, identity management, or securing personal data. If they don't use the technology that we build-in to our products to help them to fulfil these roles, they then have to build it themselves. This takes time, requires testing, and must be maintained. By taking advantage of our technology, partners will now know that they have a standard platform. They will know that they can confidently talk about implementation being the same every time they do it. Very large ISV applications could once take a year or two to be implemented at an on-premise environment. But it wasn't just the configuration of the application that took the time, it was actually the infrastructure - the different hardware configurations, operating systems and configurations of databases and middleware. Now we strongly believe that it's all about standardisation and repeatability. It's about making sure that our partners can do it once and are then able to roll it out many different times using standard componentry." What actions would you recommend for existing ISV partners that are looking to do more business with Oracle and its customer base, not only to maximise benefits, but also to maximise partner relationships? "My team, around the world and in the EMEA region, is available and ready to talk to any of our ISVs and to explore the possibilities together. We run programmes like 'Excite' and 'Insight' to help us to understand how we can help ISVs with architecture and widen their environments. But we also want to work with, and look at, new opportunities - for example, the Machine-to-Machine (M2M) market or 'The Internet of Things'. Over the next few years, many millions, indeed billions of devices will be collecting massive amounts of data and communicating it back to the central systems where ISVs will be running their applications. The only way that our partners will be able to provide a single vendor 'end-to-end' solution is to use Oracle integrated systems at the back end and Java on the 'smart' devices collecting the data – a complete solution from device to data centre. So there are huge opportunities to work closely with our ISVs, using Oracle's complete M2M platform, to provide the infrastructure that enables them to extract maximum value from the data collected. If any partners don't know where to start or who to contact, then they can contact me directly at [email protected] or indeed any of our teams across the EMEA region. We want to work with ISVs to help them to be as successful as they possibly can through simplification and speed to market, and we also want all of the top ISVs in the world based on Oracle." What opportunities are immediately opened to new ISV partners joining the OPN? "As you know OPN is very, very important. New members will discover a huge amount of content that instantly becomes accessible to them. They can access a wealth of no-cost training and enablement materials to build their expertise in Oracle technology. They can download Oracle software and use it for development projects. They can help themselves become more competent by becoming part of a true community and uncovering new opportunities by working with Oracle and their peers in the Oracle Partner Network. As well as publishing massive amounts of information on OPN, we also hold our global Oracle OpenWorld event, at which partners play a huge role. This takes place at the end of September and the beginning of October in San Francisco. Attending ISV partners have an unrivalled opportunity to contribute to elements such as the OpenWorld / OPN Exchange, at which they can talk to other partners and really begin thinking about how they can move their businesses on and play key roles in a very large ecosystem which revolves around technology and standardisation." Finally, are there any other messages that you would like to share with the Oracle ISV community? "The crucial message that I always like to reinforce is architecture, architecture and architecture! The key opportunities that ISVs have today revolve around standardising their architectures so that they can confidently think: “I will I be able to do exactly the same thing whenever a customer is looking to deploy on-premise, hosted or in the cloud”. The right architecture is critical to being competitive and to really start changing the game. We want to help our ISV partners to do just that; to establish standard architecture and to seize the opportunities it opens up for them. New market opportunities like M2M are enormous - just look at how many devices are all around you right now. We can help our partners to interface with these devices more effectively while thinking about their entire ecosystem, rather than just the piece that they have traditionally focused upon. With standardised architecture, we can help people dramatically improve their speed, reach, agility and delivery of enhanced customer satisfaction and value all the way from the Java side to their centralised systems. All Oracle ISV partners must take advantage of these opportunities, which is why Oracle will continue to invest in and support them." -- Gergely Strbik is Oracle Hardware and Software Product Manager for Avnet in Hungary. Avnet Technology Solutions is an OracleValue Added Distributor focused on the development of the existing Oracle channel. This includes the recruitment and enablement of Oracle partners as well as driving deeper adoption of Oracle's technology and application products within the IT channel. "The main business benefits of ODA for our customers and partners are scalability, flexibility, a great price point for the high performance delivered, and the easily configurable embedded Linux operating system. People welcome a lower point of entry and the ability to grow capacity on demand as their business expands." "Marketing and selling the ODA requires another way of thinking because it is an appliance. We have to transform the ways in which our partners and customers think from buying hardware and software independently to buying complete solutions. Successful early adopters and satisfied customer reactions will certainly help us to sell the ODA. We will have more experience with the product after the first deliveries and installations—end users need to see the power and benefits for themselves." "Our typical ODA customers will be those looking for complete solutions from a single reseller partner who is also able to manage the appliance. They will have enjoyed using Oracle Database but now want a new product that is able to unlock new levels of performance. A higher proportion of potential customers will come from our existing Oracle base, with around 30% from new business, but we intend to evangelise the ODA on the market to see how we can change this balance as all our customers adjust to the concept of 'Hardware and Software, Engineered to Work Together'. -- Back to the welcome page

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  • How to shoot yourself in the foot (DO NOT Read in the office)

    - by TATWORTH
    Originally posted on: http://geekswithblogs.net/TATWORTH/archive/2013/06/21/how-to-shoot-yourself-in-the-foot-do-not-read.aspxLet me make it absolutely clear - the following is:merely collated by your Geek from http://www.codeproject.com/Lounge.aspx?msg=3917012#xx3917012xxvery, very very funny so you read it in the presence of others at your own riskso here is the list - you have been warned!C You shoot yourself in the foot.   C++ You accidently create a dozen instances of yourself and shoot them all in the foot. Providing emergency medical assistance is impossible since you can't tell which are bitwise copies and which are just pointing at others and saying "That's me, over there."   FORTRAN You shoot yourself in each toe, iteratively, until you run out of toes, then you read in the next foot and repeat. If you run out of bullets, you continue anyway because you have no exception-handling facility.   Modula-2 After realizing that you can't actually accomplish anything in this language, you shoot yourself in the head.   COBOL USEing a COLT 45 HANDGUN, AIM gun at LEG.FOOT, THEN place ARM.HAND.FINGER on HANDGUN.TRIGGER and SQUEEZE. THEN return HANDGUN to HOLSTER. CHECK whether shoelace needs to be retied.   Lisp You shoot yourself in the appendage which holds the gun with which you shoot yourself in the appendage which holds the gun with which you shoot yourself in the appendage which holds...   BASIC Shoot yourself in the foot with a water pistol. On big systems, continue until entire lower body is waterlogged.   Forth Foot yourself in the shoot.   APL You shoot yourself in the foot; then spend all day figuring out how to do it in fewer characters.   Pascal The compiler won't let you shoot yourself in the foot.   Snobol If you succeed, shoot yourself in the left foot. If you fail, shoot yourself in the right foot.   HyperTalk Put the first bullet of the gun into foot left of leg of you. Answer the result.   Prolog You tell your program you want to be shot in the foot. The program figures out how to do it, but the syntax doesn't allow it to explain.   370 JCL You send your foot down to MIS with a 4000-page document explaining how you want it to be shot. Three years later, your foot comes back deep-fried.   FORTRAN-77 You shoot yourself in each toe, iteratively, until you run out of toes, then you read in the next foot and repeat. If you run out of bullets, you continue anyway because you still can't do exception-processing.   Modula-2 (alternative) You perform a shooting on what might be currently a foot with what might be currently a bullet shot by what might currently be a gun.   BASIC (compiled) You shoot yourself in the foot with a BB using a SCUD missile launcher.   Visual Basic You'll really only appear to have shot yourself in the foot, but you'll have so much fun doing it that you won't care.   Forth (alternative) BULLET DUP3 * GUN LOAD FOOT AIM TRIGGER PULL BANG! EMIT DEAD IF DROP ROT THEN (This takes about five bytes of memory, executes in two to ten clock cycles on any processor and can be used to replace any existing function of the language as well as in any future words). (Welcome to bottom up programming - where you, too, can perform compiler pre-processing instead of writing code)   APL (alternative) You hear a gunshot and there's a hole in your foot, but you don't remember enough linear algebra to understand what happened. or @#&^$%&%^ foot   Pascal (alternative) Same as Modula-2 except that the bullet is not the right type for the gun and your hand is blown off.   Snobol (alternative) You grab your foot with your hand, then rewrite your hand to be a bullet. The act of shooting the original foot then changes your hand/bullet into yet another foot (a left foot).   Prolog (alternative) You attempt to shoot yourself in the foot, but the bullet, failing to find its mark, backtracks to the gun, which then explodes in your face.   COMAL You attempt to shoot yourself in the foot with a water pistol, but the bore is clogged, and the pressure build-up blows apart both the pistol and your hand. or draw_pistol aim_at_foot(left) pull_trigger hop(swearing)   Scheme As Lisp, but none of the other appendages are aware of this happening.   Algol You shoot yourself in the foot with a musket. The musket is aesthetically fascinating and the wound baffles the adolescent medic in the emergency room.   Ada If you are dumb enough to actually use this language, the United States Department of Defense will kidnap you, stand you up in front of a firing squad and tell the soldiers, "Shoot at the feet." or The Department of Defense shoots you in the foot after offering you a blindfold and a last cigarette. or After correctly packaging your foot, you attempt to concurrently load the gun, pull the trigger, scream and shoot yourself in the foot. When you try, however, you discover that your foot is of the wrong type. or After correctly packing your foot, you attempt to concurrently load the gun, pull the trigger, scream, and confidently aim at your foot knowing it is safe. However the cordite in the round does an Unchecked Conversion, fires and shoots you in the foot anyway.   Eiffel   You create a GUN object, two FOOT objects and a BULLET object. The GUN passes both the FOOT objects a reference to the BULLET. The FOOT objects increment their hole counts and forget about the BULLET. A little demon then drives a garbage truck over your feet and grabs the bullet (both of it) on the way. Smalltalk You spend so much time playing with the graphics and windowing system that your boss shoots you in the foot, takes away your workstation and makes you develop in COBOL on a character terminal. or You send the message shoot to gun, with selectors bullet and myFoot. A window pops up saying Gunpowder doesNotUnderstand: spark. After several fruitless hours spent browsing the methods for Trigger, FiringPin and IdealGas, you take the easy way out and create ShotFoot, a subclass of Foot with an additional instance variable bulletHole. Object Oriented Pascal You perform a shooting on what might currently be a foot with what might currently be a bullet fired from what might currently be a gun.   PL/I You consume all available system resources, including all the offline bullets. The Data Processing & Payroll Department doubles its size, triples its budget, acquires four new mainframes and drops the original one on your foot. Postscript foot bullets 6 locate loadgun aim gun shoot showpage or It takes the bullet ten minutes to travel from the gun to your foot, by which time you're long since gone out to lunch. The text comes out great, though.   PERL You stab yourself in the foot repeatedly with an incredibly large and very heavy Swiss Army knife. or You pick up the gun and begin to load it. The gun and your foot begin to grow to huge proportions and the world around you slows down, until the gun fires. It makes a tiny hole, which you don't feel. Assembly Language You crash the OS and overwrite the root disk. The system administrator arrives and shoots you in the foot. After a moment of contemplation, the administrator shoots himself in the foot and then hops around the room rabidly shooting at everyone in sight. or You try to shoot yourself in the foot only to discover you must first reinvent the gun, the bullet, and your foot.or The bullet travels to your foot instantly, but it took you three weeks to load the round and aim the gun.   BCPL You shoot yourself somewhere in the leg -- you can't get any finer resolution than that. Concurrent Euclid You shoot yourself in somebody else's foot.   Motif You spend days writing a UIL description of your foot, the trajectory, the bullet and the intricate scrollwork on the ivory handles of the gun. When you finally get around to pulling the trigger, the gun jams.   Powerbuilder While attempting to load the gun you discover that the LoadGun system function is buggy; as a work around you tape the bullet to the outside of the gun and unsuccessfully attempt to fire it with a nail. In frustration you club your foot with the butt of the gun and explain to your client that this approximates the functionality of shooting yourself in the foot and that the next version of Powerbuilder will fix it.   Standard ML By the time you get your code to typecheck, you're using a shoot to foot yourself in the gun.   MUMPS You shoot 583149 AK-47 teflon-tipped, hollow-point, armour-piercing bullets into even-numbered toes on odd-numbered feet of everyone in the building -- with one line of code. Three weeks later you shoot yourself in the head rather than try to modify that line.   Java You locate the Gun class, but discover that the Bullet class is abstract, so you extend it and write the missing part of the implementation. Then you implement the ShootAble interface for your foot, and recompile the Foot class. The interface lets the bullet call the doDamage method on the Foot, so the Foot can damage itself in the most effective way. Now you run the program, and call the doShoot method on the instance of the Gun class. First the Gun creates an instance of Bullet, which calls the doFire method on the Gun. The Gun calls the hit(Bullet) method on the Foot, and the instance of Bullet is passed to the Foot. But this causes an IllegalHitByBullet exception to be thrown, and you die.   Unix You shoot yourself in the foot or % ls foot.c foot.h foot.o toe.c toe.o % rm * .o rm: .o: No such file or directory % ls %   370 JCL (alternative) You shoot yourself in the head just thinking about it.   DOS JCL You first find the building you're in in the phone book, then find your office number in the corporate phone book. Then you have to write this down, then describe, in cubits, your exact location, in relation to the door (right hand side thereof). Then you need to write down the location of the gun (loading it is a proprietary utility), then you load it, and the COBOL program, and run them, and, with luck, it may be run tonight.   VMS   $ MOUNT/DENSITY=.45/LABEL=BULLET/MESSAGE="BYE" BULLET::BULLET$GUN SYS$BULLET $ SET GUN/LOAD/SAFETY=OFF/SIGHT=NONE/HAND=LEFT/CHAMBER=1/ACTION=AUTOMATIC/ LOG/ALL/FULL SYS$GUN_3$DUA3:[000000]GUN.GNU $ SHOOT/LOG/AUTO SYS$GUN SYS$SYSTEM:[FOOT]FOOT.FOOT   %DCL-W-ACTIMAGE, error activating image GUN -CLI-E-IMGNAME, image file $3$DUA240:[GUN]GUN.EXE;1 -IMGACT-F-NOTNATIVE, image is not an OpenVMS Alpha AXP image or %SYS-F-FTSHT, foot shot (fifty lines of traceback omitted) sh,csh, etc You can't remember the syntax for anything, so you spend five hours reading manual pages, then your foot falls asleep. You shoot the computer and switch to C.   Apple System 7 Double click the gun icon and a window giving a selection for guns, target areas, plus balloon help with medical remedies, and assorted sound effects. Click "shoot" button and a small bomb appears with note "Error of Type 1 has occurred."   Windows 3.1 Double click the gun icon and wait. Eventually a window opens giving a selection for guns, target areas, plus balloon help with medical remedies, and assorted sound effects. Click "shoot" button and a small box appears with note "Unable to open Shoot.dll, check that path is correct."   Windows 95 Your gun is not compatible with this OS and you must buy an upgrade and install it before you can continue. Then you will be informed that you don't have enough memory.   CP/M I remember when shooting yourself in the foot with a BB gun was a big deal.   DOS You finally found the gun, but can't locate the file with the foot for the life of you.   MSDOS You shoot yourself in the foot, but can unshoot yourself with add-on software.   Access You try to point the gun at your foot, but it shoots holes in all your Borland distribution diskettes instead.   Paradox Not only can you shoot yourself in the foot, your users can too.   dBase You squeeze the trigger, but the bullet moves so slowly that by the time your foot feels the pain, you've forgotten why you shot yourself anyway. or You buy a gun. Bullets are only available from another company and are promised to work so you buy them. Then you find out that the next version of the gun is the one scheduled to actually shoot bullets.   DBase IV, V1.0 You pull the trigger, but it turns out that the gun was a poorly designed hand grenade and the whole building blows up.   SQL You cut your foot off, send it out to a service bureau and when it returns, it has a hole in it but will no longer fit the attachment at the end of your leg. or Insert into Foot Select Bullet >From Gun.Hand Where Chamber = 'LOADED' And Trigger = 'PULLED'   Clipper You grab a bullet, get ready to insert it in the gun so that you can shoot yourself in the foot and discover that the gun that the bullets fits has not yet been built, but should be arriving in the mail _REAL_SOON_NOW_. Oracle The menus for coding foot_shooting have not been implemented yet and you can't do foot shooting in SQL.   English You put your foot in your mouth, then bite it off. (For those who don't know, English is a McDonnell Douglas/PICK query language which allegedly requires 110% of system resources to run happily.) Revelation [an implementation of the PICK Operating System] You'll be able to shoot yourself in the foot just as soon as you figure out what all these bullets are for.   FlagShip Starting at the top of your head, you aim the gun at yourself repeatedly until, half an hour later, the gun is finally pointing at your foot and you pull the trigger. A new foot with a hole in it appears but you can't work out how to get rid of the old one and your gun doesn't work anymore.   FidoNet You put your foot in your mouth, then echo it internationally.   PicoSpan [a UNIX-based computer conferencing system] You can't shoot yourself in the foot because you're not a host. or (host variation) Whenever you shoot yourself in the foot, someone opens a topic in policy about it.   Internet You put your foot in your mouth, shoot it, then spam the bullet so that everybody gets shot in the foot.   troff rmtroff -ms -Hdrwp | lpr -Pwp2 & .*place bullet in footer .B .NR FT +3i .in 4 .bu Shoot! .br .sp .in -4 .br .bp NR HD -2i .*   Genetic Algorithms You create 10,000 strings describing the best way to shoot yourself in the foot. By the time the program produces the optimal solution, humans have evolved wings and the problem is moot.   CSP (Communicating Sequential Processes) You only fail to shoot everything that isn't your foot.   MS-SQL Server MS-SQL Server’s gun comes pre-loaded with an unlimited supply of Teflon coated bullets, and it only has two discernible features: the muzzle and the trigger. If that wasn't enough, MS-SQL Server also puts the gun in your hand, applies local anesthetic to the skin of your forefinger and stitches it to the gun's trigger. Meanwhile, another process has set up a spinal block to numb your lower body. It will then proceeded to surgically remove your foot, cryogenically freeze it for preservation, and attach it to the muzzle of the gun so that no matter where you aim, you will shoot your foot. In order to avoid shooting yourself in the foot, you need to unstitch your trigger finger, remove your foot from the muzzle of the gun, and have it surgically reattached. Then you probably want to get some crutches and go out to buy a book on SQL Server Performance Tuning.   Sybase Sybase's gun requires assembly, and you need to go out and purchase your own clip and bullets to load the gun. Assembly is complicated by the fact that Sybase has hidden the gun behind a big stack of reference manuals, but it hasn't told you where that stack is. While you were off finding the gun, assembling it, buying bullets, etc., Sybase was also busy surgically removing your foot and cryogenically freezing it for preservation. Instead of attaching it to the muzzle of the gun, though, it packed your foot on dry ice and sent it UPS-Ground to an unnamed hookah bar somewhere in the middle east. In order to shoot your foot, you must modify your gun with a GPS system for targeting and hire some guy named "Indy" to find the hookah bar and wire the coordinates back to you. By this time, you've probably become so daunted at the tasks stand between you and shooting your foot that you hire a guy who's read all the books on Sybase to help you shoot your foot. If you're lucky, he'll be smart enough both to find your foot and to stop you from shooting it.   Magic software You spend 1 week looking up the correct syntax for GUN. When you find it, you realise that GUN will not let you shoot in your own foot. It will allow you to shoot almost anything but your foot. You then decide to build your own gun. You can't use the standard barrel since this will only allow for standard bullets, which will not fire if the barrel is pointed at your foot. After four weeks, you have created your own custom gun. It blows up in your hand without warning, because you failed to initialise the safety catch and it doesn't know whether the initial state is "0", 0, NULL, "ZERO", 0.0, 0,0, "0.0", or "0,00". You fix the problem with your remaining hand by nesting 12 safety catches, and then decide to build the gun without safety catch. You then shoot the management and retire to a happy life where you code in languages that will allow you to shoot your foot in under 10 days.FirefoxLets you shoot yourself in as many feet as you'd like, while using multiple great addons! IEA moving target in terms of standard ammunition size and doesn't always work properly with non-Microsoft ammunition, so sometimes you shoot something other than your foot. However, it's the corporate world's standard foot-shooting apparatus. Hackers seem to enjoy rigging websites up to trigger cascading foot-shooting failures. Windows 98 About the same as Windows 95 in terms of overall bullet capacity and triggering mechanisms. Includes updated DirectShot API. A new version was released later on to support USB guns, Windows 98 SE.WPF:You get your baseball glove and a ball and you head out to your backyard, where you throw balls to your pitchback. Then your unkempt-haired-cargo-shorts-and-sandals-with-white-socks-wearing neighbor uses XAML to sculpt your arm into a gun, the ball into a bullet and the pitchback into your foot. By now, however, only the neighbor can get it to work and he's only around from 6:30 PM - 3:30 AM. LOGO: You very carefully lay out the trajectory of the bullet. Then you start the gun, which fires very slowly. You walk precisely to the point where the bullet will travel and wait, but just before it gets to you, your class time is up and one of the other kids has already used the system to hack into Sony's PS3 network. Flash: Someone has designed a beautiful-looking gun that anyone can shoot their feet with for free. It weighs six hundred pounds. All kinds of people are shooting themselves in the feet, and sending the link to everyone else so that they can too. That is, except for the criminals, who are all stealing iOS devices that the gun won't work with.APL: Its (mostly) all greek to me. Lisp: Place ((gun in ((hand sight (foot then shoot))))) (Lots of Insipid Stupid Parentheses)Apple OS/X and iOS Once a year, Steve Jobs returns from sick leave to tell millions of unwavering fans how they will be able to shoot themselves in the foot differently this year. They retweet and blog about it ad nauseam, and wait in line to be the first to experience "shoot different".Windows ME Usually fails, even at shooting you in the foot. Yo dawg, I heard you like shooting yourself in the foot. So I put a gun in your gun, so you can shoot yourself in the foot while you shoot yourself in the foot. (Okay, I'm not especially proud of this joke.) Windows 2000 Now you really do have to log in, before you are allowed to shoot yourself in the foot.Windows XPYou thought you learned your lesson: Don't use Windows ME. Then, along came this new creature, built on top of Windows NT! So you spend the next couple days installing antivirus software, patches and service packs, just so you can get that driver to install, and then proceed to shoot yourself in the foot. Windows Vista Newer! Glossier! Shootier! Windows 7 The bullets come out a lot smoother. Active Directory Each bullet now has an attached Bullet Identifier, and can be uniquely identified. Policies can be applied to dictate fragmentation, and the gun will occasionally have a confusing delay after the trigger has been pulled. PythonYou try to use import foot; foot.shoot() only to realize that's only available in 3.0, to which you can't yet upgrade from 2.7 because of all those extension libs lacking support. Solaris Shoots best when used on SPARC hardware, but still runs the trigger GUI under Java. After weeks of learning the appropriate STOP command to prevent the trigger from automatically being pressed on boot, you think you've got it under control. Then the one time you ever use dtrace, it hits a bug that fires the gun. MySQL The feature that allows you to shoot yourself in the foot has been in development for about 6 years, and they are adding it into the next version, which is coming out REAL SOON NOW, promise! But you can always check it out of source control and try it yourself (just not in any environment where data integrity is important because it will probably explode.) PostgreSQLAllows you to have a smug look on your face while you shoot yourself in the foot, because those MySQL guys STILL don't have that feature. NoSQL Barrel? Who needs a barrel? Just put the bullet on your foot, and strike it with a hammer. See? It's so much simpler and more efficient that way. You can even strike multiple bullets in one swing if you swing with a good enough arc, because hammers are easy to use. Getting them to synchronize is a little difficult, though.Eclipse There are about a dozen different packages for shooting yourself in the foot, with weird interdependencies on outdated components. Once you finally navigate the morass and get one installed, you then have something to look at while you shoot yourself in the foot with that package: You can watch the screen redraw.Outlook Makes it really easy to let everyone know you shot yourself in the foot!Shooting yourself in the foot using delegates.You really need to shoot yourself in the foot but you hate firearms (you don't want any dependency on the specifics of shooting) so you delegate it to somebody else. You don't care how it is done as long is shooting your foot. You can do it asynchronously in case you know you may faint so you are called back/slapped in the face by your shooter/friend (or background worker) when everything is done.C#You prepare the gun and the bullet, carefully modeling all of the physics of a bullet traveling through a foot. Just before you're about to pull the trigger, you stumble on System.Windows.BodyParts.Foot.ShootAt(System.Windows.Firearms.IGun gun) in the extended framework, realize you just wasted the entire afternoon, and shoot yourself in the head.PHP<?phprequire("foot_safety_check.php");?><!DOCTYPE HTML><html><head> <!--Lower!--><title>Shooting me in the foot</title></head> <body> <!--LOWER!!!--><leg> <!--OK, I made this one up...--><footer><?php echo (dungSift($_SERVER['HTTP_USER_AGENT'], "ie"))?("Your foot is safe, but you might want to wear a hard hat!"):("<div class=\"shot\">BANG!</div>"); ?></footer></leg> </body> </html>

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  • xml to xsl transformation

    - by amirin
    Hi, I have a requirement to extract the uniquie values from the different nodes of the given xml using xsl transformation. XML FILE:- var IPClaimCausesNice = ""; function changeIPClaimCause(){ if(CommJob.client.policy.Insurance.Coverages.Coverage[0].Claim.IPClaimCause == "Diagnosis") { IPClaimCausesNice = "diagnosis" } if(CommJob.client.policy.Insurance.Coverages.Coverage[0].Claim.IPClaimCause == "Illness") { IPClaimCausesNice = "illness" } if(CommJob.client.policy.Insurance.Coverages.Coverage[0].Claim.IPClaimCause == "Accident") { IPClaimCausesNice = "accident" } return IPClaimCausesNice; } <section id="1903879316" name="Logos"> <fraglink id="605609862" resid="1235000151"> <argvalue name="CommJob"> <var name="CommJob" type="Th_1235001170_CommJob" /> </argvalue> </fraglink> </section> <section id="13483397" name="Address Block"> <fraglink id="563800610" resid="986000123"> <argvalue name="PersonInformation"> <var name="AddresseePersonInformation" type="Th_1235000929_PersonInformation" /> </argvalue> </fraglink> </section> <section id="1093480468" name="Details"> <fraglink id="460316501" resid="1195000163"> <argvalue name="currentDateTime"> <var name="getSystemVariables.getCurrentDate" type="date" /> </argvalue> <argvalue name="CommJob"> <var name="CommJob" type="Th_1235000929_CommJob" /> </argvalue> <argvalue name="ShowDOB" /> <argvalue name="ShowYourRef" /> <argvalue name="YourRefLabel" /> </fraglink> <fraglink id="1026044336" resid="1235000070"> <argvalue name="brandKey"> <var name="CommJob.commJobDetails.brandingKey" type="string" /> </argvalue> <argvalue name="brandSponsor"> <var name="CommJob.client.policy.policyDetails.brandSponsor" type="string" /> </argvalue> </fraglink> </section> <section id="2092948772" name="Important info"> <frag id="1180564368" name="frag" no-match="error" type="text"> <edition id="1178777425" name="Any" withdrawn="False"> <edition-content> <p style="bodyTableHeader" align="left" xml:space="preserve">Important information</p> <p style="body" xml:space="preserve">In accordance with the terms and conditions of your policy, your claim has been classified as a <iif><expression><script language="JavaScript">CommJob.client.policy.Insurance.Coverages.Coverage[0].Claim.IPClaimCause == "Diagnosis" || CommJob.client.policy.Insurance.Coverages.Coverage[0].Claim.IPClaimCause == "Ill health"</script><description>the IPClaimCause of the CommJob's client policy insurances Insurance Coverages IPCover Claim equals "Diagnosis" or the IPClaimCause of the CommJob's client policy insurances Insurance Coverages IPCover Claim equals "Ill health"sicknessCommJob.client.policy.Insurance.Coverages.Coverage[0].Claim.IPClaimCause == "Accident"the IPClaimCause of the CommJob's client policy insurances Insurance Coverages IPCover Claim equals "Accident"accident. Please assist us Please quote your policy and claim numbers / when returning your forms. Your claim has been received Your Thank you for sending your Initial Claim Form which we received on . We are sorry to hear of your recent . Our assessmentThe attending doctor’s statement indicates you are claiming benefits as a result of , CommJob.client.policy.Insurance.Coverages.Coverage[0].Claim.IPClaimCause == "Diagnosis"the IPClaimCause of the CommJob's client policy Insurance Coverages first Coverage Claim equals "Diagnosis"which was diagnosedCommJob.client.policy.Insurance.Coverages.Coverage[0].Claim.IPClaimCause == "Accident"the IPClaimCause of the CommJob's client policy Insurance Coverages first Coverage Claim equals "Accident"which first occuredCommJob.client.policy.Insurance.Coverages.Coverage[0].Claim.IPClaimCause == "Ill health"the IPClaimCause of the CommJob's client policy Insurance Coverages first Coverage Claim equals "Ill health"with symptoms commencing on . We note you ceased all work on and consulted your doctor IsNotMissing(CommJob.placeHolders.date.date5)the date5 of the CommJob's placeHolders date is not missingon this day also regarding your condition. Further information is required We’ve enclosed the following forms. Please complete these and return them to us so that we can continue assessing your claim. Progress claim form Attached questionnaire Authority to the Health Insurance Commission Medical authority <<other/ free format>> <<other/ free format>> Please be advised we’ve CommJob.placeHolders._boolean.boolean1 == truethe CommJob's placeHolders boolean is boolean1also requested the following information: Medical report from Dr Medicare history report from the Health Insurance Commission <<other/ free format>> <<other/ free format>> As your claim forms have been submitted months after you ceased work, our ability to properly assess your claim may have been prejudiced. In order to complete our assessment of your claim, the following information is required within 30 days of this letter: Reason for late lodgement of claim. Reason(s) you ceased work on (eg redundancy or due to medical condition). Name and contact details of all doctors and specialists you have consulted since you ceased work. Copies of any medical, radiology, pathology or other reports in your possession. Details of all treatment you have received since you ceased work. Whether you returned to work (paid or unpaid) in either a full-time or part-time capacity. If so, please provide the dates you worked, hours you worked, duties you performed and any income you received. Financial information for any other related entities (if applicable). If you are unable to supply the above information, please contact us by WriteText(FormatDateTime(DateAdd(getSystemVariables.getCurrentDate,"day",30),"dd MMMM yyyy")). To help in the ongoing assessment of your claim, you are required to be under the regular care and attendance of a medical practitioner. We’ve enclosed a Progress Claim Form which needs to be completed and returned to us by . False False False CC: Different nodes to pick the values:- 1. 2.path form 5. Values to be picked form the xml node and display in HTML is like CommJob.client.policy.Insurance.Coverages.Coverage[0].Claim.IPClaimCause CommJob.commJobDetails.stockType CommJob.commJobDetails.targetClient.targetClientName CommJob.client.policy.policyDetails.policyStatus CommJob.client.policy.policyDetails.productType CommJob.commJobDetails.targetClient.targetClientName ........etc can any one help me to provide the solution. This xsl transformation doesn't pick correctly only the values <xsl:template match="@*"/> Any help on this will great.

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