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• CodePlex Daily Summary for Thursday, November 29, 2012

  CodePlex Daily Summary for Thursday, November 29, 2012Popular ReleasesJayData - The cross-platform HTML5 data-management library for JavaScript: JayData 1.2.5: What's new in JayData 1.2.5For detailed release notes check the release notes. Handlebars template engine supportImplement data manager applications with JayData using Handlebars.js for templating. Include JayDataModules/handlebars.js and begin typing the mustaches :) Blogpost: Handlebars templates in JayData Handlebars helpers and model driven commanding in JayData Easy JayStorm cloud data managementManage cloud data using the same syntax and data management concept just like any other data ...nopCommerce. Open source shopping cart (ASP.NET MVC): nopcommerce 2.70: Highlight features & improvements: • Performance optimization. • Search engine optimization. ID-less URLs for products, categories, and manufacturers. • Added ACL support (access control list) on products and categories. • Minify and bundle JavaScript files. • Allow a store owner to decide which billing/shipping address fields are enabled/disabled/required (like it's already done for the registration page). • Moved to MVC 4 (.NET 4.5 is required). • Now Visual Studio 2012 is required to work ...SQL Server Partition Management: Partition Management Release 3.0: Release 3.0 adds support for SQL Server 2012 and is backward compatible with SQL Server 2008 and 2005. The release consists of: • A Readme file • The Executable • The source code (Visual Studio project) Enhancements include: -- Support for Columnstore indexes in SQL Server 2012 -- Ability to create TSQL scripts for staging table and index creation operations -- Full support for global date and time formats, locale independent -- Support for binary partitioning column types -- Fixes to is...PDF Library: PDFLib v2.0: Release notes This new version include many bug fixes and include support for stream objects and cross-reference object streams. New FeatureExtract images from the PDFMCEBuddy 2.x: MCEBuddy 2.3.10: Critical Update to 2.3.9: Changelog for 2.3.10 (32bit and 64bit) 1. AsfBin executable missing from build 2. Removed extra references from build to avoid conflict 3. Showanalyzer installation now checked on remote engine machine Changelog for 2.3.9 (32bit and 64bit) 1. Added support for WTV output profile 2. Added support for minimizing MCEBuddy to the system tray 3. Added support for custom archive folder 4. Added support to disable subdirectory monitoring 5. Added support for better TS fil...DotNetNuke® Community Edition CMS: 07.00.00: Major Highlights Fixed issue that caused profiles of deleted users to be available Removed the postback after checkboxes are selected in Page Settings > Taxonomy Implemented the functionality required to edit security role names and social group names Fixed JavaScript error when using a ";" semicolon as a profile property Fixed issue when using DateTime properties in profiles Fixed viewstate error when using Facebook authentication in conjunction with "require valid profile fo...CODE Framework: 4.0.21128.0: See change notes in the documentation section for details on what's new.Microsoft Ajax Minifier: Microsoft Ajax Minifier 4.76: Fixed a typo in ObjectLiteralProperty.IsConstant that caused all object literals to be treated like they were constants, and possibly moved around in the code when they shouldn't be.Kooboo CMS: Kooboo CMS 3.3.0: New features: Dropdown/Radio/Checkbox Lists no longer references the userkey. Instead they refer to the UUID field for input value. You can now delete, export, import content from database in the site settings. Labels can now be imported and exported. You can now set the required password strength and maximum number of incorrect login attempts. Child sites can inherit plugins from its parent sites. The view parameter can be changed through the page_context.current value. Addition of c...Distributed Publish/Subscribe (Pub/Sub) Event System: Distributed Pub Sub Event System Version 3.0: Important Wsp 3.0 is NOT backward compatible with Wsp 2.1. Prerequisites You need to install the Microsoft Visual C++ 2010 Redistributable Package. You can find it at: x64 http://www.microsoft.com/download/en/details.aspx?id=14632x86 http://www.microsoft.com/download/en/details.aspx?id=5555 Wsp now uses Rx (Reactive Extensions) and .Net 4.0 3.0 Enhancements I changed the topology from a hierarchy to peer-to-peer groups. This should provide much greater scalability and more fault-resi...datajs - JavaScript Library for data-centric web applications: datajs version 1.1.0: datajs is a cross-browser and UI agnostic JavaScript library that enables data-centric web applications with the following features: OData client that enables CRUD operations including batching and metadata support using both ATOM and JSON payloads. Single store abstraction that provides a common API on top of HTML5 local storage technologies. Data cache component that allows reading data ranges from a collection and storing them locally to reduce the number of network requests. Changes...Team Foundation Server Administration Tool: 2.2: TFS Administration Tool 2.2 supports the Team Foundation Server 2012 Object Model. Visual Studio 2012 or Team Explorer 2012 must be installed before you can install this tool. You can download and install Team Explorer 2012 from http://aka.ms/TeamExplorer2012. There are no functional changes between the previous release (2.1) and this release.Coding Guidelines for C# 3.0, C# 4.0 and C# 5.0: Coding Guidelines for CSharp 3.0, 4.0 and 5.0: See Change History for a detailed list of modifications.Math.NET Numerics: Math.NET Numerics v2.3.0: Portable Library Build: Adds support for WP8 (.Net 4.0 and higher, SL5, WP8 and .NET for Windows Store apps) New: portable build also for F# extensions (.Net 4.5, SL5 and .NET for Windows Store apps) NuGet: portable builds are now included in the main packages, no more need for special portable packages Linear Algebra: Continued major storage rework, in this release focusing on vectors (previous release was on matrices) Thin QR decomposition (in addition to existing full QR) Static Cr...ExtJS based ASP.NET 2.0 Controls: FineUI v3.2.1: +2012-11-25 v3.2.1 +????????。 -MenuCheckBox?CheckedChanged??????，??????????。 -???????window.IDS??????????????。 -?????（??TabCollection，ControlBaseCollection）???，????????????????。 +Grid??。 -??SelectAllRows??。 -??PageItems??，?????????????，?????、??、?????。 -????grid/gridpageitems.aspx、grid/gridpageitemsrowexpander.aspx、grid/gridpageitems_pagesize.aspx。 -???????????????????。 -??ExpandAllRowExpanders??，?????????????????（grid/gridrowexpanderexpandall2.aspx）。 -??????ExpandRowExpande...VidCoder: 1.4.9 Beta: Updated HandBrake core to SVN 5079. Fixed crashes when encoding DVDs with title gaps.ZXing.Net: ZXing.Net 0.10.0.0: On the way to a release 1.0 the API should be stable now with this version. sync with rev. 2521 of the java version windows phone 8 assemblies improvements and fixesBlackJumboDog: Ver5.7.3: 2012.11.24 Ver5.7.3 (1)SMTP???????、?????????、??????????????????????? (2)?????????、?????????????????????????? (3)DNS???????CNAME????CNAME????????????????? (4)DNS????????????TTL???????? (5)???????????????????????、?????????????????? (6)???????????????????????????????Liberty: v3.4.3.0 Release 23rd November 2012: Change Log -Added -H4 A dialog which gives further instructions when attempting to open a "Halo 4 Data" file -H4 Added a short note to the weapon editor stating that dropping your weapons will cap their ammo -Reach Edit the world's gravity -Reach Fine invincibility controls in the object editor -Reach Edit object velocity -Reach Change the teams of AI bipeds and vehicles -Reach Enable/disable fall damage on the biped editor screen -Reach Make AIs deaf and/or blind in the objec...Umbraco CMS: Umbraco 4.11.1: NugetNuGet BlogRead the release blog post for 4.11.0. Read the release blog post for 4.11.1. Whats new50 bugfixes (see the issue tracker for a complete list) Read the documentation for the MVC bits. Breaking changesGetPropertyValue now returns an object, not a string (only affects upgrades from 4.10.x to 4.11.0) NoteIf you need Courier use the release candidate (as of build 26). The code editor has been greatly improved, but is sometimes problematic in Internet Explorer 9 and lower. Pr...New ProjectsConvection Game API: A basic game API written in C# using XNA 4.0CS^2 (Casaba's Simple Code Scanner): Casaba's simple code scanner is a tool for managing greps to be run over a source tree and correlating those greps to issues for bug generation. CSparse.NET: A Concise Sparse Matrix Package for .NETDocument Generation Utility: This is about extracting different XML entities and wrapping up with jumbled legal English alphabets and outputs as per File format defined in settings.DuinoExplorer: file manager, http, remote, copy & pasteGenomeOS: An experimental x86 object-oriented operanting system programmed in C/C++ and x86 intel assemblyHush.Project: DatabaseInvi: NALibreTimeTracker Client: Free alternative to the original TimeTracker Client.MO Virtual Router: Virtual Router For Windows 8My Word Game Publisher: This is a full web application which is developed in .NET 2.0 using c#, xml, MS SQL, aspx.MyWGP XmlDataValidator: This is designed and developed (in Silverlight 2, C#) to validate the requirements of data in xml files: the type & size of data, and the requirement status. It allows a user to choose the type of data, enter min & max size, and check the requirement status for data elements.OMX_AL_test_environment: OMX application layer simulation/testing environmentOrchard Coverflow: An Orchard CMS module that provides a way to create iTunes-like coverflow displays out of your Media items.SharePoint standart list form javascript utility (SPListFormUtility): SPListFormUtility is a small JavaScript library, that helps control the appearance and behavior of standart SharePoint list forms. SharePoint 2010, 2013 supportShuttle Core: Shuttle Core is a project that contains cross-cutting libraries for use in .net software development. The Prism architecture lack for the Interactions!: The Prism architecture lack for the Interactions! (Silverlight) The defect opens a popups more then once and creates memory leaks. Example of the lack here.YouCast: YouCast (from YouTube and Podcast) allows you to subscribe to video feeds on YouTube* as podcasts in any standard podcatcher like Zune PC, iTunes and so forth.ZEFIT: Zeiterfassungstool als Projekt im 4.Lehrjahr als Informatiker an der GIBB in Bern????: ?Windows Phone?????，??Windows Phone??????????????。

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• PerlRegEx vs RegularExpressionsCore Delphi Units

  - by Jan Goyvaerts

  The RegularExpressionsCore unit that is part of Delphi XE is based on the latest class-based PerlRegEx unit that I developed. Embarcadero only made a few changes to the unit. These changes are insignificant enough that code written for earlier versions of Delphi using the class-based PerlRegEx unit will work just the same with Delphi XE. The unit was renamed from PerlRegEx to RegularExpressionsCore. When migrating your code to Delphi XE, you can choose whether you want to use the new RegularExpressionsCore unit or continue using the PerlRegEx unit in your application. All you need to change is which unit you add to the uses clause in your own units. Indentation and line breaks in the code were changed to match the style used in the Delphi RTL and VCL code. This does not change the code, but makes it harder to diff the two units. Literal strings in the unit were separated into their own unit called RegularExpressionsConsts. These strings are only used for error messages that indicate bugs in your code. If your code uses TPerlRegEx correctly then the user should not see any of these strings. My code uses assertions to check for out of bounds parameters, while Embarcadero uses exceptions. Again, if you use TPerlRegEx correctly, you should never get any assertions or exceptions. The Compile method raises an exception if the regular expression is invalid in both my original TPerlRegEx component and Embarcadero’s version. If your code allows the user to provide the regular expression, you should explicitly call Compile and catch any exceptions it raises so you can tell the user there is a problem with the regular expression. Even with user-provided regular expressions, you shouldn’t get any other assertions or exceptions if your code is correct. Note that Embarcadero owns all the rights to their RegularExpressionsCore unit. Like all the other RTL and VCL units, this unit cannot be distributed by myself or anyone other than Embarcadero. I do retain the rights to my original PerlRegEx unit which I will continue to make available for those using older versions of Delphi.

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• Ubuntu 13.04 client cannot connect to Raspbian samba share

  - by envoyweb

  I have a client Ubuntu 13.04 machine trying to connect to a server running Raspbian with samba and samba-common-bin installed on the server I can see my share and when I try to login I get this error: Unable to access location: Failed to write windows share Cannot allocate memory. I have installed ntfs-3g for the usb hard drive that already auto mounts on the server so I never had to create a directory or edit fstab. Testparm on the server states the following: [global] workgroup = ENVOYWEB server string = %h server map to guest = Bad User obey pam restrictions = Yes pam password change = Yes passwd program = /usr/bin/passwd %u passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* . unix password sync = Yes syslog = 0 log file = /var/log/samba/log.%m max log size = 1000 dns proxy = No usershare allow guests = Yes panic action = /usr/share/samba/panic-action %d idmap config * : backend = tdb [homes] comment = Home Directories valid users = %S create mask = 0700 directory mask = 0700 browseable = No [printers] comment = All Printers path = /var/spool/samba create mask = 0700 printable = Yes print ok = Yes browseable = No [print$] comment = Printer Drivers path = /var/lib/samba/printers [BigDude] comment = Sharing BigDude's Files path = /media/BigDude/ valid users = @users read only = No create mask = 0755 testparm on the client which is running ubuntu is as follows [global] workgroup = ENVOYWEB server string = %h server (Samba, Ubuntu) map to guest = Bad User obey pam restrictions = Yes pam password change = Yes passwd program = /usr/bin/passwd %u passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* . unix password sync = Yes syslog = 0 log file = /var/log/samba/log.%m max log size = 1000 dns proxy = No usershare allow guests = Yes panic action = /usr/share/samba/panic-action %d idmap config * : backend = tdb [printers] comment = All Printers path = /var/spool/samba create mask = 0700 printable = Yes print ok = Yes browseable = No [print$] comment = Printer Drivers path = /var/lib/samba/printers

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• GNOME changes to KDE on Maverick

  - by Pit

  Hi, I recently made a clean/fresh install of Ubuntu 10.10 an experienced the problem that the theme changes from Gnome to KDE and back randomly and partly. Sometimes after starting my computer I will have a KDE theme. If I then open the Appearance Preferences ( System - Preferences - Appearance ) some applications and the main-menu as well as menu of applications (only upper two centimetres of a application window) will change back to Gnome only by opening it, not changing anything nor saving. I did not choose KDE at any time, nor did I do any changes to the appearance prior to the first occurrence of this bug. On a second computer I updated from 10.04 to 10.10 and experienced the same bug. On this computer I did however change the layout of the minimize;maximise;close buttons by following How do I move the Window buttons from left to right?. But I don't see how this could provoke the bug, especially as it occurs on a second computer. Will doing updates I saw that there a quite a lot of KDE packages being downloaded. Do I even need those if I don't want to use KDE?

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• Shooter in iOS and a visible Aim line before shooting

  - by London2423

  I have to questions. I am trying to develop a game that is iOS but I did it first in my computer so I can tested there. I was able to must of it for PC but I am having a very hard time with iOS port The problem I do have is that I don't know how to shout in iOS. To be more specific how to line render in iOS This is the script I use in my computer using UnityEngine; using System.Collections; public class NewBehaviourScript : MonoBehaviour { LineRenderer line; void Start () { line = gameObject.GetComponent<LineRenderer>(); line.enabled = false; } void Update () { if (Input.GetButtonDown ("Fire1")) { StopCoroutine ("FireLaser"); StartCoroutine ("FireLaser"); } } IEnumerator FireLaser () { line.enabled = true; while (Input.GetButton("Fire1")) { Ray ray = new Ray(transform.position, transform.forward); RaycastHit hit; line.SetPosition (0, ray.origin); if (Physics.Raycast (ray, out hit,100)) { line.SetPosition(1,hit.point); if (hit.rigidbody) { hit.rigidbody.AddForceAtPosition(transform.forward * 5, hit.point); } } else line.SetPosition (1, ray.GetPoint (100)); yield return null; } line.enabled = false; { } } } Which part I have to change for iOS? I already did in the iOS the touch giu event so my player move around in the xcode/Iphone but I need some help with the shouting part. The second part of the question is where I do have to insert or change the script in order to first aim and I DO see the line of aim and then shout. Now the player can only shout. It can not aim at the gameobject, see the the line coming out of the gun aiming at the object and then shout? How I can do that. Everyone tell me Line render but that's what i did Thank you

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• Named output parameters vs return values

  - by Abyx

  Which code is better: // C++ void handle_message(...some input parameters..., bool& wasHandled) void set_some_value(int newValue, int* oldValue = nullptr) // C# void handle_message(...some input parameters..., out bool wasHandled) void set_some_value(int newValue, out int oldValue) or bool handle_message(...some input parameters...) ///< Returns -1 if message was handled //(sorry, this documentation was broken a year ago and we're too busy to fix it) int set_some_value(T newValue) // (well, it's obvious what this function returns, so I didn't write any documentation for it) The first one doesn't have and need any documentation. It's a self-documenting code. Output value clearly says what it means, and it's really hard to make a change like this: - void handle_message(Message msg, bool& wasHandled) { - wasHandled = false; - if (...) { wasHandled = true; ... + void handle_message(Message msg, int& wasHandled) { + wasHandled = -1; + if (...) { wasHandled = ...; With return values such change could be done easily /// Return true if message was handled - bool handle_message(Message msg) { + int handle_message(Message msg) { ... - return true; + return -1; Most of compilers don't (and can't) check documentation written in comments. Programmers also tend to ignore comments while editing code. So, again, the question is: if subroutine has single output value, should it be a procedure with well-named self-documenting output parameter, or should it be a function which returns an unnamed value and have a comment describing it?

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• Distributed Development Tools -- (Version control and Project Management)

  - by Macy Abbey

  I've recently become responsible for choosing which source control and project management software to use for a company that employs me. Currently it uses Jira (project management) and Subversion (version control). I know there are many other options out there -- the ones I know about are all in this article http://mashable.com/2010/07/14/distributed-developer-teams/ . I'm leaning towards recommending they just stay with what they have as it seems workable and any change would have to be worth the cost of switching to say github/basecamp or some other solution. Some details on the team: It's a distributed development shop. Meetings of the whole team in one room are rare. It's currently a very small development team (three developers). The project management software is used by developers and a product manager or two. What are you experiences with version control and project management web applications? Are there any you would recommend and you think are worth the switching cost of time to learn new services / implementing the change? Edit: After educating myself further on the options it appears DVCS offer powerful benefits that may be worth investing in now as opposed to later in the company's lifetime when the switching cost is higher: I'm a Subversion geek, why I should consider or not consider Mercurial or Git or any other DVCS?

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• How can rotating release managers improve a project's velocity and stability?

  - by Yannis Rizos

  The Wikipedia article on Parrot VM includes this unreferenced claim: Core committers take turns producing releases in a revolving schedule, where no single committer is responsible for multiple releases in a row. This practice has improved the project's velocity and stability. Parrot's Release Manager role documentation doesn't offer any further insight into the process, and I couldn't find any reference for the claim. My first thoughts were that rotating release managers seems like a good idea, sharing the responsibility between as many people as possible, and having a certain degree of polyphony in releases. Is it, though? Rotating release managers has been proposed for Launchpad, and there were some interesting counterarguments: Release management is something that requires a good understanding of all parts of the code and the authority to make calls under pressure if issues come up during the release itself The less change we can have to the release process the better from an operational perspective Don't really want an engineer to have to learn all this stuff on the job as well as have other things to take care of (regular development responsibilities) Any change of timezones of the releases would need to be approved with the SAs and: I think this would be a great idea (mainly because of my lust for power), but I also think that there should be some way making sure that a release manager doesn't get overwhelmed if something disastrous happens during release week, maybe by have a deputy release manager at the same time (maybe just falling back to Francis or Kiko would be sufficient). The practice doesn't appear to be very common, and the counterarguments seem reasonalbe and convincing. I'm quite confused on how it would improve a project's velocity and stability, is there something I'm missing, or is this just a bad edit on the Wikipedia article? Worth noting that the top voted answer in the related "Is rotating the lead developer a good or bad idea?" question boldly notes: Don't rotate.

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• Cannot get temperatures in Dell Studio 1558

  - by Athul Iddya

  I could never get proper temperatures on my Dell Studio 1558. lm-sensors and acpi give wrong readings. The output of sensors is, $ sensors acpitz-virtual-0 Adapter: Virtual device temp1: +26.8°C (crit = +100.0°C) temp2: +0.0°C (crit = +100.0°C) acpi -V gives me, $ acpi -V Battery 0: Full, 100% Battery 0: design capacity 414 mAh, last full capacity 369 mAh = 89% Adapter 0: on-line Thermal 0: ok, 0.0 degrees C Thermal 0: trip point 0 switches to mode critical at temperature 100.0 degrees C Thermal 0: trip point 1 switches to mode passive at temperature 95.0 degrees C Thermal 0: trip point 2 switches to mode active at temperature 71.0 degrees C Thermal 0: trip point 3 switches to mode active at temperature 55.0 degrees C Thermal 1: ok, 26.8 degrees C Thermal 1: trip point 0 switches to mode critical at temperature 100.0 degrees C Thermal 1: trip point 1 switches to mode active at temperature 71.0 degrees C Thermal 1: trip point 2 switches to mode active at temperature 55.0 degrees C Cooling 0: LCD 0 of 15 Cooling 1: Processor 0 of 10 Cooling 2: Processor 0 of 10 Cooling 3: Processor 0 of 10 Cooling 4: Processor 0 of 10 Cooling 5: Fan 0 of 1 Cooling 6: Fan 0 of 1 I suspect even hddtemp gives bogus readings as its always at 46 $ sudo hddtemp /dev/sda /dev/sda: ST9500420AS: 46°C I have gone through some bug reports and some used to have the same problem after resuming from suspend. But I always have this problem. I had updated to the latest BIOS from Windows a couple of weeks ago, will updating from Ubuntu change anything? CORRECTION: hddtemp's readings do change. Its now at 45.

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• Failed to load session gnome-fallback, after messing with metacity

  - by Carlito

  I am using Ubuntu 12.04 with gnome-session-fallback (Gnome Classic in the login menu). I wanted to remove window borders from metacity and stumbled across this post which basically changes window->mwm_decorated from TRUE to FALSE, which should remove the window borders in metacity. I know that it is also possible to change your GTK theme to one without window borders, but I wanted to try this solution. So I downloaded the source from my current metacity version (2.34.1) and changed that row. After compiling (./configure && make) I ran checkinstall which generates a .deb file from the source (had to change the version a bit to match the current one exactly). But after installing and loging out and back in, I couldn't load Gnome Classic. I get the error Failed to load session gnome-fallback. I could reinstall the old metacity which was still saved in /var/cache/apt/archives/, so everything is back where it was before. But I would like to mess around with metacity. Have I installed it correctly or did I forgot something? Are there any log files that I should check for solving this error? Thanks in advance!

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• Using Behavior Trees and Events together

  - by weichsem

  I am beginning to work with behavior trees and am unsure how events should be handled within the tree. Lets say we have a space game where the player is dogfighting with a handful of other ships, some friendly some not. The player destroys a ship and the rest of the hostile ships should then start to retreat. How was should the shipWasDestroyed event effect the other ship's behavior trees so that they start running the retreat behavior? One way I could think of doing this is have all the conditions I care about be high level nodes that effectively state change the ship. This would mean I'd have to check all of these state change conditions on every frame the behavior tree was run, even if they are very rare occurrences. I'd prefer not doing this for performance and complexity reasons. From looking at the Halo papers on behavior trees it seems that they handled this by dynamically placing nodes into the tree when the event occurred. It seems like calculating where the new node should go could be problematic depending on the current state of the running behavior. How is this normally handled?

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• Ways to organize interface and implementation in C++

  - by Felix Dombek

  I've seen that there are several different paradigms in C++ concerning what goes into the header file and what to the cpp file. AFAIK, most people, especially those from a C background, do: foo.h class foo { private: int mem; int bar(); public: foo(); foo(const foo&); foo& operator=(foo); ~foo(); } foo.cpp #include foo.h foo::bar() { return mem; } foo::foo() { mem = 42; } foo::foo(const foo& f) { mem = f.mem; } foo::operator=(foo f) { mem = f.mem; } foo::~foo() {} int main(int argc, char *argv[]) { foo f; } However, my lecturers usually teach C++ to beginners like this: foo.h class foo { private: int mem; int bar() { return mem; } public: foo() { mem = 42; } foo(const foo& f) { mem = f.mem; } foo& operator=(foo f) { mem = f.mem; } ~foo() {} } foo.cpp #include foo.h int main(int argc, char* argv[]) { foo f; } // other global helper functions, DLL exports, and whatnot Originally coming from Java, I have also always stuck to this second way for several reasons, such as that I only have to change something in one place if the interface or method names change, that I like the different indentation of things in classes when I look at their implementation, and that I find names more readable as foo compared to foo::foo. I want to collect pro's and con's for either way. Maybe there are even still other ways? One disadvantage of my way is of course the need for occasional forward declarations.

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• Refactoring and Open / Closed principle

  - by Giorgio

  I have recently being reading a web site about clean code development (I do not put a link here because it is not in English). One of the principles advertised by this site is the Open Closed Principle: each software component should be open for extension and closed for modification. E.g., when we have implemented and tested a class, we should only modify it to fix bugs or to add new functionality (e.g. new methods that do not influence the existing ones). The existing functionality and implementation should not be changed. I normally apply this principle by defining an interface I and a corresponding implementation class A. When class A has become stable (implemented and tested), I normally do not modify it too much (possibly, not at all), i.e. If new requirements arrive (e.g. performance, or a totally new implementation of the interface) that require big changes to the code, I write a new implementation B, and keep using A as long as B is not mature. When B is mature, all that is needed is to change how I is instantiated. If the new requirements suggest a change to the interface as well, I define a new interface I' and a new implementation A'. So I, A are frozen and remain the implementation for the production system as long as I' and A' are not stable enough to replace them. So, in view of these observation, I was a bit surprised that the web page then suggested the use of complex refactorings, "... because it is not possible to write code directly in its final form." Isn't there a contradiction / conflict between enforcing the Open / Closed Principle and suggesting the use of complex refactorings as a best practice? Or the idea here is that one can use complex refactorings during the development of a class A, but when that class has been tested successfully it should be frozen?

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• PowerShell a constant in a changing world

  - by Rob Addis

  I've been programming for about 20 years now some of my friends have been at it for over 30. I have read many, many manuals and yes it's not my favourite past time. So 10 years ago I made a promise to myself to try and only learn about products which have long life times. I immediately gave up programming GUIs and concentrated on back end development as I decided that these products (Oracle, MQ Series, SQL Server, BizTalk and later WCF, WF) have longer life times and smaller incremental changes than front end products.10 years ago I had no idea how good a decision that would turn out to be. There have been so many different Microsoft products for the front end in that time; multiple versions of Windows Forms, FrontPage, Html, Javascript, ASP.net, Silverlight, SharePoint, WPF and now hopefully a stayer Metro.I remember being at a Microsoft conference in 2006 when Martin Fowler told a crowd of developers (I'm paraphrasing) "If you don't like change then you're in the wrong business!". Well I've been in the business for 20 years and yes I'm a little resistant to change. I like my investment in reading manuals and getting certified to be time well spent!Over the last 2 years I have been writing A LOT of PowerShell script, I think there is a good chance this product will still be around and be used for new development in 10 years, learning it is a good investment.

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• Wordpress blog penalized by Google search - what's wrong?

  - by pawelbrodzinski

  I have a blog (http://blog.brodzinski.com), which is wordpress.org blog with pretty popular Thesis theme with almost no other customizations. Some time ago it was penalized by Google search - it simply stopped appearing in search results even for search terms it used to be top result, like my name - Pawel Brodzinski - which isn't anything close to popular search term. To be exact the site has been penalized on Nov 18. It started popping up in search result on Dec 23 but only for a few days. Since Dec 27 it is out again. I know Google guidelines and I'm not aware to break any of them. I submitted reconsideration request after I noticed penalty. It was proceeded and there was no change whatsoever (no surprise as it seems the site was penalized again). I checked diagnostics in webmaster tools and neither any malware was detected nor any strange search terms popped up. I read related threads on Google webmasters forum but found none of solutions working for me. I posted a thread on Google webmasters forum (http://www.google.com/support/forum/p/Webmasters/thread?tid=546339f49d4a03bc&hl=en) and the only answer I got was to check for duplicate content. Well, there is some duplicate content published on the web but it is true for vast majority of blogs and it doesn't seem to be a reason for a penalty. Also before Dec 27 I was able to remove duplicate content from a couple of sites which were republishing my feed but this doesn't change the situation - the site was penalized again. The problem is I have no idea what can be wrong with the website or how to find it out. To make the problem worse I'm no webmaster, I just run a wordpress blog, which supposed to be easy.

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• Unresponsive Script window pops up all the time now. Why and what to do?

  - by Christopher Jewell

  I don't know that it's for the exact same script each time, it may be. A script on this page may be busy, or it may have stopped responding. You can stop the script now, or you can continue to see if the script will complete. Script: chrome://messenger/content/folderPane.js:721 This is in association with Thunderbird I think. This doesn't just happen after I've stepped away for a long time. It happens every time I click on anything. Things keep running that I'm clicking on. Just before this started as a constant problem, I was looking at addons etc, and something in Thunderbird deactivated an old or expired JavaScript. I clicked on the update for that and after a while I found the best choice on the list and clicked download. I don't know that anything happened with that and I moved away from addons etc area. The unresponsive script window started coming back all the time. Every time I clicked on something in Thunderbird and sometimes with Firefox. I turned off Firefox and restarted, but it didn't change. Shut down Firefox and computer restarted didn't change. The unresponsive script window is persistent now.

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• Spring + JSR 303 Validation group is ignored [closed]

  - by nsideras

  we have a simple bean with JSR annotations public class CustomerDTO { private static final long serialVersionUID = 1L; private Integer id; @NotEmpty(message = "{customer.firstname.empty}") private String firstName; @NotEmpty(message = "{customer.lastname.empty}") private String lastName; @NotEmpty(groups={PasswordChange.class}, message="{password.empty}") private String password; @NotEmpty(groups={PasswordChange.class}, message="{confirmation.password.empty}") private String password2; } and we have a Spring Controller @RequestMapping(value="/changePassword", method = RequestMethod.POST) public String changePassword(@Validated({ PasswordChange.class }) @ModelAttribute("customerdto") CustomerDTO customerDTO, BindingResult result, Locale locale) { logger.debug("Change Password was submitted with information: " + customerDTO.toString()); try { passwordStrengthPolicy.checkPasswordStrength(locale, customerDTO.getPassword()); if (result.hasErrors()) { return "changePassword"; } logger.debug("Calling customer service changePassword: " + customerDTO); customerOnlineNewService.changePassword(customerDTO); } catch (PasswordNotChangedException e) { logger.error("Could not change password PasswordNotChangedException: " + customerDTO.toString()); return "changePassword"; } catch (PasswordNotSecureException e) { return "changePassword"; } return createRedirectViewPath("changePassword"); } Our problem is that when changePassword is invoked the validator ignores the group(PasswordChange.class) and validates only firstName and lastName which are not in the group. Any idea? Thank you very much for your time.

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• When to use each user research method

  - by user12277104

  There are a lot of user research methods out there, but sometimes we get stuck in a rut, conducting all formative usability testing before coding, or running surveys to gather satisfaction data. I'll be the first to admit that it happens to me, but to get out of a rut, it just takes a minute to look at where I am in the design & development cycle, what kind(s) of data I need, and what methods are available to me. We need reminders, or refreshers, every once in a while. One tool I've found useful is a graphic organizer that I created many years ago. It's been through several revisions, as I've adapted it to the product cycles of the places I've worked, changed my mind about how to categorize it, and added methods that I've used or created over time. I shared a version of this table at the 2012 International UPA conference, and I was contacted by someone yesterday who wanted to use it in a university course on user-center design. I was flattered at the the thought, but embarrassed, because I was sure it needed updating -- that was a year ago, after all. But I opened it today, and really, there's not much I'd change -- sure, I could add some nuance regarding what types of formative testing, such as modality (remote, unmoderated remote, or in-person) or flavor of testing (RITE, RITE-Krug, comparative, performance), but I think it's pretty much ok as is. Click on the image below, to get the full-size PDF. And whether it's entirely "right" or "wrong" isn't the whole value of looking at these methods across the product lifecycle. The real value lies in the reminder that I have options. And what those options are change as the field changes, so while I don't expect this graphic to have an eternal shelf life, it's still ok a year after I last updated it. That said, if you find something missing or out of place, let me know :) 

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• Essbase - FormatString

  - by THE

  A look at the documentation for "Typed Measures" shows:"Using format strings, you can format the values (cell contents) of Essbase database members in numeric type measures so that they appear, for query purposes, as text, dates, or other types of predefined values. The resultant display value is the cell’s formatted value (FORMATTED_VALUE property in MDX). The underlying real value is numeric, and this value is unaffected by the associated formatted value."To actually switch ON the use of typed measures in general, you need to navigate to the outline properties: open outline select properties change "Typed Measures enable" to TRUE (click to enlarge) As an example, I created two additional members in the ASOSamp outline. - A member "delta Price" in the Measures (Accounts) Dimension with the Formula: ([Original Price],[Curr_year])-([Original Price],[Prev_year])This is equivalent to the Variance Formula used in the "Years" Dimension. - A member "Var_Quickview" in the "Years" Dimension with the same formula as the "Variance" Member.This will be used to simply display a second cell with the same underlying value as Variance - but formatted using Format String hence enabling BOTH in the same report. (click to enlarge) In the outline you now select the member you want the Format String associated with and change the "associated Format String" in the Member Properties.As you can see in this example an IIF statement reading:MdxFormat(IIF(CellValue()< 0,"Negative","Positive" ) ) has been chosen for both new members.After applying the Format String changes and running a report via SmartView, the result is: (click to enlarge) reference: Essbase Database Admin Guide ,Chapter 12 "Working with Typed Measures "

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• Designing business objects, and gui actions

  - by fozz

  Developing a product ordering system using Java SE 6. The previous implementations used combo boxes, text fields, and check boxes. Preforming validation on action events from the GUI. The validation includes limiting existing combo boxes items, or even availability. The issue in the old system was that the action was received and all rules were applied to the entire business object. This resulted in a huge event change as options were changed multiple times. To be honest I have no idea how an infinite loop wasn't produced. Through the next iteration I stepped in and attempted to limit the chaos by controlling the order in which the selections could be made. Making configuration of BO's a top down approach. I implemented custom box models, action events, beans/binding, and an MVC pattern. However I still am unable to fully isolate action even chains. I'm thinking that I've approached the whole concept backwards in an attempt to stay closest to what was already in place. So the question becomes what do I design instead? I'm currently considering an implementation of Interfaces, Beans, Property Change Listeners to manage the back and forth. Other thoughts were validation exceptions, dynamic proxies.... I'm sure there are a ton of different ways. To say that one way is right is crazy, and I'm sure it will take a blending of multiple patterns. My knowledge of swing/awt validation is limited, previously I did backend logic only. Other considerations are were some sort of binding(jgoodies or otherwise) to directly bind GUI state to BO's.

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• Is it necessary to add an HP printer to CUPS using the hplip URI?

  - by JPbuntu

  I recently setup a CUPS print server (Ubuntu server 12.04) and I having trouble with performance of a HP Color LaserJet Printer CP3505n. The printer pauses for about a second between printing each page, which is annoying when there is a lot of printing to be done. This doesn't happen when the printer is installed directly to a Windows client. In an attempt to fix this I have setup the printer a couple different ways. I decided not to do a Samba share since this wiki said IPP is preferred. First Method Added to HP LaserJet to CUPS as a Discovered Network Printer, and selected HP Color LaserJet cp3505 hpijs pcl3, 3.12.2 (en) driver. I did not use a hplip URI. Second Method (hplip URI) I thought adding hplip to the mix might improve the performance, so I added the printer like this: Ran hp-setup -m 192.168.2.60, prompted to select driver Selected HP Color LaserJet cp3505 hpijs pcl3, 3.12.2 (en) Used hplip to generate a URI: hp-makeuri 192.168.2.60 Then added the printer to CUPS as a Local Printer: HP Printer (HPLIP), and entered: hp:/net/HP_Color_LaserJet_CP3505?ip=192.168.2.60. Either method I use I am able to share the printer on the network by adding a printer as http://192.168.2.2:631/printers/HP_LASER-TERRAC. Does it make a difference which way the printer is added cups? If so, and I install the printer with the hp URI, can I still change the driver using the CUPS web interface? I have been trying out different drivers to try and improve performance, and the cups interface is the easiest way to change them. Thanks in advance.

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• ADF Faces Skin Editor - How to Work with It

  - by Shay Shmeltzer

  The ODTUG Kscop11 conference was a great success with lots of sessions about FMW running in a special track. I did several sessions and labs in the conference, and I thought it might be a good idea to at least give you a taste of what you might have missed. So here is most of what I demoed in my ADF Faces Skinning session (not all though - that session was 60 minutes long, and while everyone did end up going out of the building in the middle because of a fire drill for about 5 minutes, there was other things covered in the session as well). In the demo here you'll see how to generate new images and default color scheme, how to identify a component class with Firebug, how to skin a component, how to identify the global selector of a property, how to change fonts and how to change strings. By the way, for more on ADF Skinning you should also listen to the ADF Insider seminar that Frank Nimphius recorded on skinning, it will give you better understanding of the overall skinning process. P.S. in the demo I add an entry to the web.xml file which prevent ADF Faces from compressing the HTML that is generated. The entry is for org.apache.myfaces.trinidad.DISABLE_CONTENT_COMPRESSION  and I set it to true. This is very useful when you work on creating the skin, but don't forget to un-set it before you go production.

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• Could not load file or assembly 'System.Data.SQLite' or one of its dependencies. An attempt was made to load a program with an incorrect format.

  - by Om Talsania

  Problem Description: Could not load file or assembly 'System.Data.SQLite' or one of its dependencies. An attempt was made to load a program with an incorrect format. Likely to be reproduced when: You will usually encounter this problem when you have downloaded a sample application that is a 32-bit application targeted for ASP.NET 2.0 or 3.5, and you have IIS7 on a 64-bit OS running .NET 4.0, because the default setting for running 32-bit application on IIS7 with 64-bit OS is false. Resolution: 1. Go to IIS Management Console Start -> Administration Tools -> Internet Information Services (IIS) Manager 2. Expand your server in the left pane and go to Application Pools 3. Right click to select ‘Add Application Pool’  4. Create anew AppPool. I have named it ASP.NET v2.0 AppPool (32-bit) and selected .NET Framework v2.0.50727 because I intend to run my ASP.NET 3.5 application on it. 5. Now right click the newly created AppPool and select Advanced Settings 6. Change the property “Enable 32-Bit Applications” from False to True  7. Now select your actual web application from the left panel. Right click the web application, and go to Manage Application -> Advanced Settings  8. Change the Property “Application Pool” to your newly created AppPool.  And… the error is gone…

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• What are some good seminar topics that can be used to improve designer&developer communication?

  - by tactoth

  Hello guys the thing I'll tell is what happens in the company I work for but I know it's more like a common issue in software companies. I'm development team leader in a internet service company that provides service that's very similar to dropbox. In our company we have mainly two divisions: the tech division and the designers division, both have their own reporting hierarchy. Designers focus on designing UI and prioritizing features, while developers focus on implement designers' ideas (more like being driven as our big boss has said). Then here comes our issue: the DEV team and DES team communicate very bad. DEV complain DES for these reasons: Too frequent changing of requirements Too complicated interaction (our DEV team has actually learned many HCI principles) Documents for design are incomplete, usually you just get 'design principles' and it's up to DEV to complete design details. When you find design defects, you ask DES team to resolve them, then DES team quickly change the principles and you gonna spend another several weeks because the change is so fundamental. While DES complain DEV for these reasons: Code architecture is not good enough to adapt to changing requirements (Obviously DES knows something about software development) Product design is about principles, not details. DEV fails to realize this. Communication should be quick and should be mainly oral. Trying to make most feature discussion in document for reference is too overloaded and doesn't make sense. As you can see, DEV and DES have different ideas on product design, and encourages very different practice. We have this difference because of the way we work. So our solution is that we should plan some seminars to make each part more aware of the way the other part work. Then my question is, what are some good topics for such seminars? Guessing some people may not think seminars can solve this problem, please also suggest your solution.

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• What can be the cause of new bugs appearing somewhere else when a known bug is solved?

  - by MainMa

  During a discussion, one of my colleagues told that he has some difficulties with his current project while trying to solve bugs. "When I solve one bug, something else stops working elsewhere", he said. I started to think about how this could happen, but can't figure it out. I have sometimes similar problems when I am too tired/sleepy to do the work correctly and to have an overall view of the part of the code I was working on. Here, the problem seems to be for a few days or weeks, and is not related to the focus of my colleague. I can also imagine this problem arising on a very large project, very badly managed, where teammates don't have any idea of who does what, and what effect on other's work can have a change they are doing. This is not the case here neither: it's a rather small project with only one developer. It can also be an issue with old, badly maintained and never documented codebase, where the only developers who can really imagine the consequences of a change had left the company years ago. Here, the project just started, and the developer doesn't use anyone's codebase. So what can be the cause of such issue on a fresh, small-size codebase written by a single developer who stays focused on his work? What may help? Unit tests (there are none)? Proper architecture (I'm pretty sure that the codebase has no architecture at all and was written with no preliminary thinking), requiring the whole refactoring? Pair programming? Something else?

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