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• Do we have enough time to build an electric car future?

  - by julien.groues

  A recent article from Greenbang has posed the question 'Do we have enough time to build an electric car future?'. The writer discusses that, although the future of transport might lie with electric cars, there is concern regarding whether we'll be able to build the market and infrastructure required to support them, before carbon and oil constraints create difficulties in powering the vehicles. Of course, the increasing use of Electric vehicles (EVs) is going to put excessive pressure on energy grids, as large volumes of electricity will need to be directed to charging points, which in turn must handle fluctuating demand at peak times. EVs are increasing in popularity as a sustainable method of transport to reduce carbon consumption, and electric utilities will have the opportunity, and the challenge, to quickly determine the best methods to fuel these vehicles and accommodate the associated increases in demand for energy. Critically, efficient software is required to provide diagnostic and predictive capabilities related to EV refuelling - for example, anticipated electricity flow will need to be addressed as the number of EVs on the road increases, and electricity will need to be directed to specific areas on-demand as vehicles attempt to recharge en-mass. But a smart grid infrastructure can meet these demands, intelligently. The implementation of a smart grid is not in the distant future, it is an achievable reality for utilities via simple installation of new software and technologies, which can be done incrementally for those facing existing legacy systems or concerned with upfront costs. The smart grid is integral to the monitoring and control of energy use as well as the future-proofing of the energy grid. A smart grid will be critical to meeting the electricity requirements of new EVs and will ensure their successful deployment by providing a reliable foundation for the data handling required to record and manage electricity distribution - from recording and assessing energy usage, to analysing data and sharing information with consumers via green billing. http://www.greenbang.com/do-we-have-enough-time-to-build-an-electric-car-future_14248.html

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• iOS and Server: OAuth strategy

  - by drekka

  I'm trying to working how to handle authentication when I have iOS clients accessing a Node.js server and want to use services such as Google, Facebook etc to provide basic authentication for my application. My current idea of a typical flow is this: User taps a Facebook/Google button which triggers the OAuth(2) dialogs and authenticates the user on the device. At this point the device has the users access token. This token is saved so that the next time the user uses the app it can be retrieved. The access token is transmitted to my Node.js server which stores it, and tags it as un-verified. The server verifies the token by making a call to Facebook/google for the users email address. If this works the token is flagged as verified and the server knows it has a verified user. If Facebook/google fail to authenticate the token, the server tells iOS client to re-authenticate and present a new token. The iOS client can now access api calls on my Node.js server passing the token each time. As long as the token matches the stored and verified token, the server accepts the call. Obviously the tokens have time limits. I suspect it's possible, but highly unlikely that someone could sniff an access token and attempt to use it within it's lifespan, but other than that I'm hoping this is a reasonably secure method for verification of users on iOS clients without having to roll my own security. Any opinions and advice welcome.

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• Can you point me to a nontrivial strategy pattern implementation?

  - by Eugen Martynov

  We are faced implementing a registration workflow with many branches. There are three main flows which in some conditions lead to one another. Each flow has at least four different steps; some steps interact with the server, and every step adds more information to the state. Also the requirement is to have it persistent between sessions, so if the user closes the app (this is a mobile app), it will restore the process from the last completed step with the state from the previous session. I think this could benefit from the use of the strategy pattern, but I've never had to implement it for such a complex case. Does anyone know of any examples in open source or articles from which I could find inspiration? Preferably the examples would be from a live/working/stable application. I'm interested in Java implementation mostly; we are developing for Java mobile phones: android, blackberry and J2ME. We have an SDK which is quite well separated from platform specific implementations, but examples in C++, C#, Objective-C or Python would be acceptable.

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• Oracle Fusion Applications Design Patterns Now Available

  - by Frank Nimphius

  "The Oracle Fusion Applications user experience design patterns are published! These new, reusable usability solutions and best-practices, which will join Oracle dashboard patterns and guidelines that are already available online, are used by Oracle to artfully bring to life a new standard in the user experience, or UX, of enterprise applications. Now, the Oracle applications development community can benefit from the science behind the Oracle Fusion Applications user experience, too.These Oracle Fusion Applications UX Design Patterns, or blueprints, enable Oracle applications developers and system implementers everywhere to leverage professional usability insight when [...]  designing exciting, new, highly usable applications -- in the cloud or on-premise.  Based on the Oracle Application Development Framework (ADF) components, the Oracle Fusion Applications patterns and guidelines are proven with real users and in the Applications UX usability labs, so you can get right to work coding productivity-enhancing designs that provide an advantage for your entire business.  What’s the best way to get started? We’ve made that easy, too. The Design Filter Tool (DeFT) selects the best pattern for your user type and task. Simply adapt your selection for your own task flow and content, and you’re on your way to a really great applications user experience. More Oracle applications design patterns and training are coming your way in the future. To provide feedback on the sets that are currently available, let us know in the comments section or use the contact form provided."

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• What relationship do software Scrum or Lean have to industrial engineering concepts like theory of constraints?

  - by DeveloperDon

  In Scrum, work is delivered to customers through a series of sprints in which project work is time boxed to a fixed number of days or weeks, usually 30 days. In lean software development, the goal is to deliver as soon as possible, permitting early feedback for the next iteration. Both techniques stress the importance of workflow in which software work product does not accumulate in development awaiting release at some future date. Both permit new or refined requirements and feedback from QA and customers to be acted on with as little delay as possible based on priority. A few years ago I heard a lecture where the speaker talked briefly about a family of concepts from industrial engineering called theory of constraints. In the factory, they use an operations model based on three components: drum, buffer, and rope. The drum synchronizes work product as it flows through the system. Buffers that protect the system by holding output from one stage as it waits to be consumed by the next. The rope pulls product from one work station to the next. Historically, are these ideas part of the heritage of Scrum and Lean, or are they on a separate track? It we wanted to think about Scrum and Lean in terms of drum-buffer-rope, what are the parts? Drum = {daily scrum meeting, monthly release)? Buffer = {burn down list, source control system)? Rope = { daily meeting, constant integration server, monthly releases}? Industrial engineers define work flow in terms of different kinds of factories. I-Factories: straight pipeline. One input, one output. A-Factories: many inputs and one output. V-Factories: one input, many output products. T-Plants: many inputs, many outputs. If it applies, what kind of factory is most like Scrum or Lean and why?

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• Is there a language more general than Lisp?

  - by Jon Purdy

  I've been programming for a long time, and writing in Lisp (well, mostly Scheme) for a little less. My experience in these languages (and other functional languages) has informed my ability to write clean code even with less powerful tools. Lisp-family languages have lovely facilities for implementing every abstraction in common use: S-expressions generalise structure. Macros generalise syntax. Continuations generalise flow control. But I'm dissatisfied. Somehow, I want more. Is there a language that's more general? More powerful? As great as Lisp is, I find it hard to believe no one has come up with anything (dare I say) better. I'm well aware that ordinarily a question like this ought to be closed for its argumentative nature. But there seems to be a broad consensus that Lisp represents the theoretical pinnacle of programming language design. I simply refuse to accept that without some kind of proof. Which I guess amounts to questioning whether the lambda calculus is in fact the ideal abstraction of computation.

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• What types of programming contest problems are there?

  - by Alex

  Basically, I want to make a great reference for use with programming contests that would have all of the algorithms that I can put together that I would need during a contest as well as sample useage for the code. I'm planning on making this into a sort of book that I could print off and take with me to competitions. I would like to do this rather than simply bringing other books (such as Algorithms books) because I think that I will learn a lot more by going over all of the algorithms myself as well as I would know exactly what I have in the book, making it more efficient to have and use. So, I've been doing research to determine what types of programming problems and algorithms are common on contests, and the only thing I can really find is this (which I have seen referenced a few times): Hal Burch conducted an analysis over spring break of 1999 and made an amazing discovery: there are only 16 types of programming contest problems! Furthermore, the top several comprise almost 80% of the problems seen at the IOI. Here they are: Dynamic Programming Greedy Complete Search Flood Fill Shortest Path Recursive Search Techniques Minimum Spanning Tree Knapsack Computational Geometry Network Flow Eulerian Path Two-Dimensional Convex Hull BigNums Heuristic Search Approximate Search Ad Hoc Problems The most challenging problems are Combination Problems which involve a loop (combinations, subsets, etc.) around one of the above algorithms - or even a loop of one algorithm with another inside it. These seem extraordinarily tricky to get right, even though conceptually they are ``obvious''. Now that's good and all, but that study was conducted in 1999, which was 13 years ago! One thing I know is that there are no BigNums problems any more (as Java has a BigInteger class, they have stopped making those problems). So, I'm wondering if anyone knows of any more recent studies of the types of problems that may be seen in a programming contest? Or what the most helpful algorithms on contests would be?

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• Verfication vs validation again, does testing belong to verification? If so, which?

  - by user970696

  I have asked before and created a lot of controversy so I tried to collect some data and ask similar question again. E.g. V&V where all testing is only validation: http://www.buzzle.com/editorials/4-5-2005-68117.asp According to ISO 12207, testing is done in validation: •Prepare Test Requirements,Cases and Specifications •Conduct the Tests In verification, it mentiones. The code implements proper event sequence, consistent interfaces, correct data and control flow, completeness, appropriate allocation timing and sizing budgets, and error definition, isolation, and recovery. and The software components and units of each software item have been completely and correctly integrated into the software item Not sure how to verify without testing but it is not there as a technique. From IEEE: Verification: The process of evaluating software to determine whether the products of a given development phase satisfy the conditions imposed at the start of that phase. [IEEE-STD-610]. Validation: The process of evaluating software during or at the end of the development process to determine whether it satisfies specified requirements. [IEEE-STD-610] At the end of development phase? That would mean UAT.. So the question is, what testing (unit, integration, system, uat) will be considered verification or validation? I do not understand why some say dynamic verification is testing, while others that only validation. An example: I am testing an application. System requirements say there are two fields with max. lenght of 64 characters and Save button. Use case say: User will fill in first and last name and save. When checking the fields and Save button presence, I would say its verification. When I follow the use case, its validation. So its both together, done on the system as a whole.

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• Fixed Assets Recommended Patch Collections

  - by Cindy A B-Oracle

  After the introduction of the Recommended Patch Collections (RPCs) in late 2012, Fixed Assets development has released an RPC about every six months.  You may recall that an RPC is a collection of recommended patches consolidated into a single, downloadable patch, ready to be applied.  The RPCs are created with the following goals in mind: Stability:  Address issues that occur often and interfere with the normal completion of crucial business processes, such as period close--as observed by Oracle Development and Global Customer Support. Root Cause Fixes:  Deliver a root cause fix for data corruption issues that delay period close, normal transaction flow actions, performance, and other issues. Compact:  While bundling a large number of important corrections, the file footprint is kept as small as possible to facilitate uptake and minimize testing. Reliable:  Reliable code with multiple customer downloads and comprehensive testing by QA, Support and Proactive Support.  There has been a revision to the RPC release process for spring 2014.  Instead of releasing product-specific RPCs, development has released a 12.1.3 RPC that is EBS-wide.  This EBS RPC includes all product-recommended patches along with their dependencies. To find out more about this EBS-wide RPC, please review Oracle E-Business Suite Release 12.1.3+ Recommended Patch Collection 1 (RPC1) (Doc ID 1638535.1).

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• Becoming a Certified Information Professional

  - by Lance Shaw

  Yesterday, we participated with AIIM in a webinar about the Certified Information Professional (CIP) program that they are now offering.  The interest level is very high in the program, as evidenced by the high turnout at the event. You might be asking yourself, what does the Oracle WebCenter team care about an AIIM certification program? Well, we sponsored this program because we consistently find that the more educated our customers and prospects are, the more value they are going to get out of the technology we provide.  As an ECM vendor, we provide plenty of WebCenter product training and certifications to help you make the most of WebCenter technology. While these are essential and valuable, technologists that also have an operational command of the business and the various impacts that the flow of information can have are even more valuable to an organization. Thinking about the management of content and information and its effect on business process can have wide-ranging benefits, not only to your company but to your personal bottom line.  And let's be honest, a customer who is looking holistically at how content is managed is going to see more opportunities to leverage that content and in many cases, this will motivate the purchase of additional product licenses.   Now if you are regretting the fact that you missed the webinar yesterday, never fear!  It is now available for playback and you can view it at your convenience by visiting the AIIM website. We hope you find it informative and that you can personally profit from being able to showcase your certification as an Information Professional. Additionally, we hope it will help you identify additional opportunities to leverage Oracle WebCenter in order to further reduce your operational costs and drive your business forward.

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• Does anybody know of any resources to achieve this particular "2.5D" isometric engine effect?

  - by Craig Whitley

  I understand this is a little vague, but I was hoping somebody might be able to describe a high-level workflow or link to a resource to be able to achieve a specific isometric "2.5D" tile engine effect. I fell in love with http://www.youtube.com/watch?v=-Q6ISVaM5Ww this engine. Especially with the lighting and the shaders! He has a brief description of how he achieved what he did, but I could really use a brief flow of where you would start, what you would read up on and learn and the logical order to implement these things. A few specific questions: 1) Is there a heightmap on the ground texture that lets the light reflect brighter on certain parts of it? 2) "..using a special material which calculates the world-space normal vectors of every pixel.." - is this some "magic" special material he has created himself, or can you hazard a guess at what he means? 3) with relation to the above quote - what does he mean by 'world-space normal vectors of every pixel'? 4) I'm guessing I'm being a little bit optimistic when I ask if there's any 'all-in-one' tutorial out there? :)

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• QA - Developer communication

  - by exiter2000

  I am a developer and have worked at this company 4~5 years by now. We have been practicing scrum for about 2 years. I think, I have been worked well with QAs. I believe QAs/developers/technical writers are all one team. We are also actively hiring new team members. As a legacy member of the team, I have faced to assist new member(including developers and testers) with my business knowledge. We work on 2 weeks base scrum. I usually deliver my user story completely by the first date of second week and do some qa build with partial functionality of my user story so that QA has a good idea about my implementation and flow. Recently, I have met some QAs. In first week, the QAs do not talk... In stand up meeting, they say they are developing test cases regardless I deliver the user story or not. In second week, I do not have a single defect till Thursday afternoon and suddenly I have a major defect with several minor UI defect, which I delivered one week ago. Or I have one or two minor defects on second week however major defects on Thursday afternoon or Friday morning. This eventually make the story rolls over to the next sprint. Major defect takes time to fix and more importantly it would trigger the regression test for the story... Even if I worked Thursday evening and fixed it, the testing will not finish. And this happens multiple times with certain QAs. As a same team member, I talked to the QAs if they could test major defect with higher priority... Rejected... Because I do not understand QA process.. So I asked roughly how many major test cases are covered so far in the stand up meeting on 2nd week Wednesday.. The response is I should not ask this to the QA in the stand up meeting... What do I do?

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• CodePlex Daily Summary for Thursday, October 03, 2013

  CodePlex Daily Summary for Thursday, October 03, 2013Popular ReleasesEvent-Based Components AppBuilder: AB3.Iteration.52: Iteration 52 (Feature): Improve edit of flow step definition by validating input. (empty type name, type name contains space, type name starts with illegal char., custom name contains space, custom name is unique) Renamed: EditSingleStepDefinitionFlow => EditStepDefinitionFlow Improved: EditSubFlowDefinitionFlow (No code was changed. All necessary parts already existed. Only improvement of flow definitions.)DNN® Form and List: DNN Form and List 06.00.07: DotNetNuke Form and List 06.00.06 Changes to 6.0.7•Fixed an error in datatypes.config that caused calculated fields to be missing in 6.0.6 Changes to 6.0.6•Add in Sql to remove 'text on row' setting for UserDefinedTable to make SQL Azure compatible. •Add new azureCompatible element to manifest. •Added a fix for importing templates. Changes to 6.0.2•Fix: MakeThumbnail was broken if the application pool was configured to .Net 4 •Change: Data is now stored in nvarchar(max) instead of ntext C...SpiderSync: SpiderSync 0.5: Initial releaseSimpleExcelReportMaker: Serm 0.03: SourceCode and Sample .Net Framework 3.5 AnyCPU compile.RDFSharp - Start playing with RDF!: RDFSharp-0.6.6: GENERAL (NEW) Introduction of INT64 hashing engine (codenamed "Greta"); QUERY (FIX) Incorrect query evaluation due to faulty detection of optional patterns (v0.6.5 regression); (FIX) Missing update of PatternGroupID information after adding patterns and filters to a pattern group; (FIX) Ensure Context information of a pattern is not null before trying to collect it as variable; (MISC) Changed semantics of Context information of a pattern: if not provided, it will be ignored; (MISC...Ela, functional programming language: Ela, dynamic functional language (PDF, book, 0.6): A book about Ela, dynamic functional language in PDF format.DrivenDb: DrivenDb 1.6.0.1 Release: Removed untyped ReadValue(s) methods specifically for strings. The typed version (ReadValue<T>) works with ReadValue<string> now.Application Architecture Guidelines: App Architecture Guidelines 3.0.8: This document is an overview of software qualities, principles, patterns, practices, tools and libraries.C# Intellisense for Notepad++: Release v1.0.7.1: - smart indentation - document formatting To avoid the DLLs getting locked by OS use MSI file for the installation.CS-Script for Notepad++: Release v1.0.7.1: - smart indentation - document formatting To avoid the DLLs getting locked by OS use MSI file for the installation.State of Decay Save Manager: Version 1.0.2: Added Start/Stop button for timer to manually enable/disable Quick save routine updated to force it to refresh the folder date Quick save added to backup listing Manual update button Lower level hooking for F5 and F9 buttons workingBlackJumboDog: Ver5.9.6: 2013.09.30 Ver5.9.6 (1)SMTP???????、???????????????? (2)WinAPI??????? (3)Web???????CGI???????????????????????Microsoft Ajax Minifier: Microsoft Ajax Minifier 5.2: Mostly internal code tweaks. added -nosize switch to turn off the size- and gzip-calculations done after minification. removed the comments in the build targets script for the old AjaxMin build task (discussion #458831). Fixed an issue with extended Unicode characters encoded inside a string literal with adjacent \uHHHH\uHHHH sequences. Fixed an IndexOutOfRange exception when encountering a CSS identifier that's a single underscore character (_). In previous builds, the net35 and net20...AJAX Control Toolkit: September 2013 Release: AJAX Control Toolkit Release Notes - September 2013 Release (Updated) Version 7.1002September 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). Important UpdateThis release has been updated to fix two issues: Upda...WDTVHubGen - Adds Metadata, thumbnails and subtitles to WDTV Live Hubs: WDTVHubGen.v2.1.4.apifix-alpha: WDTVHubGen.v2.1.4.apifix-alpha is for testers to figure out if we got the NEW api plugged in ok. thanksVisual Log Parser: VisualLogParser: Portable Visual Log Parser for Dotnet 4.0AudioWordsDownloader: AudioWordsDownloader 1.1 build 88: New features list of words (mp3 files) is available upon typing when a download path is defined list of download paths is added paths history settings added Bug fixed case mismatch in word search field fixed path not exist bug fixed when history has been used path, when filled from dialog, not stored refresh autocomplete list after path change word sought is deleted when path is changed at the end sought word list is deleted word list not refreshed download ends. word lis...Wsus Package Publisher: Release v1.3.1309.28: Fix a bug, where WPP crash when running on a computer where Windows was installed in another language than Fr, En or De, and launching the Update Creation Wizard. Fix a bug, where WPP crash if some Multi-Thread job are launch with more than 64 items. Add a button to abort "Install This Update" wizard. Allow WPP to remember which columns are shown last time. Make URL clickable on the Update Information Tab. Add a new feature, when Double-Clicking on an update, the default action exec...Tweetinvi a friendly Twitter C# API: Alpha 0.8.3.0: Version 0.8.3.0 emphasis on the FIlteredStream and ease how to manage Exceptions that can occur due to the network or any other issue you might encounter. Will be available through nuget the 29/09/2013. FilteredStream Features provided by the Twitter Stream API - Ability to track specific keywords - Ability to track specific users - Ability to track specific locations Additional features - Detect the reasons the tweet has been retrieved from the Filtered API. You have access to both the ma...AcDown?????: AcDown????? v4.5: ??●AcDown??????????、??、??、???????。????，????，?????????????????????????。???????????Acfun、????(Bilibili)、??、??、YouTube、??、???、??????、SF????、????????????。 ●??????AcPlay?????，??????、????????????????。 ● AcDown???????C#??，????.NET Framework 2.0??。?????"Acfun?????"。 ??v4.5 ???? AcPlay????????v3.5 ????????，???????????30% ?? ???????GoodManga.net???? ?? ?????????? ?? ??Acfun?????????? ??Bilibili??????????? ?????????flvcd???????? ??SfAcg????????????? ???????????? ???????????????? ????32...New ProjectsBootstrap 3.0 WebPages Helpers: Bootstrap 3.0 WebPages Helpers offre direttamente la forza del pattern responsive e la semplicità di controlli facili d’uso e riuso. Compact Framework 3.9 Templates for Windows Embedded Compact 2013: This project provides Visual Studio 2012 Templates for Compact Framework Version 3.9 in the context of a Windows Embedded Compact 2013 OS project SDK.ganda: naGSpeak (Gesture Speak): Code generation through speech/gesture for everyone (Including individuals with disabilities).Importing Microsoft Project Files: Using mpjx to read microsoft project filesMoppet.Lapa: Very light parser generator based on combinations of lambda functions. Without language of grammar descriptions. Defining parsers in the code directly.NotifyPilot for TFS: NotifyPilot is a simple bridge between TFS and a group of clients (eg : Yammer, SignalR, ect..).SimCa: Simple Image Cacher for WP7.SIMPLE: We are aiming to create an easy to use machine learning framework in C++ which includes the tools you need to make modules for the included learning environmentSpiderSync: Command line application for providing one-way real-time synchronization between two folders.StrontiumTeam: An client-side application based on Kendo UI. It provides the means for car owners to make offers and lure potential buyers through the sleek interface.StudentSystem: A learning system comprising students, teachers, courses and lectures.TelerikExams: Solutions of the tasks for the exams in ThelerikAcademy (http://telerikacademy.com)Thewhy: Just Test CreateUser Stories: proyecto academicoWindows Embedded Compact 2013 Tools: Some applications to add to Compact 2013 OS that were available in previous versions of Windows Embedded Compact/CE but not part of the current version.

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• A New Native Silverlight 4 Rich Text Editor Coming Up

  The eagerly awaited release of Silverlight 4.0 is now a fact and we have great news to share with you. Here at Telerik we are going to have a new addition to our Silverlight suite a brand new native Silverlight 4.0 rich text box. RadRichTextBox offers MS Word-like text editing and formatting capabilities which come with unmatched performance, paged and flow layout. The new control utilizes UI Virtualization and Recycling, easy to use API for accessing/modifying document and layout structure, and more. A CTP of RadRichTextBox is going to be released with the upcoming RadControls for Silverlight 2010.Q1 SP1. The official version is expected to be part of the Q2 2010 release. To illustrate better some of the new features lets see a short example of the document model in pure XAML: As we said above, the structure of the document is like the documents in WPF. In the ...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Implicit OAuth2 endpoint vs. cookies

  - by Jamie

  I currently have an app which basically runs two halves of an API - a restful API for the web app, and a synchronisation API for the native clients (all over SSL). The web app is completely javascript based and is quite similar to the native clients anyway - except it currently does not work offline. What I'm hoping to do is merge the fragmented APIs into a single restful API. The web app currently authenticates by issuing a cookie to the client whereas the native clients work using a custom HMAC access token implementation. Obviously a public/private key scenario for a javascript app is a little pointless. I think the best solution would be to create an OAuth2 endpoint on the API (like Instagram, for example http://instagram.com/developer/authentication/) which is used by both the native apps and the web app. My question is, in terms of security how does an implicit OAuth2 flow compare (storing the access token in local storage) to "secure" cookies? Presumably although SSL solves man in the middle attacks, the user could theoretically grab the access token from local storage and copy it to another machine?

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• Webcam doesn't work in Ubuntu 12.10

  - by Kzhi

  I have Gembird cam68ut. On my Ubuntu 12.10 it shows black screen in cheese and guvcview. I tested it in win7, it works fine. Here what I found: It is a uvc compliant camera, I checked on the site: 18ec:3299 USB 2.0 PC Camera (model number QC3231) ArkMicro This webcam is report by lsusb: Bus 001 Device 004: ID 18ec:3299 Arkmicro Technologies Inc. Here is the output of dmesg | tail: uvcvideo: Found UVC 1.00 device USB2.0 PC CAMERA (18ec:3299) uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround. input: USB2.0 PC CAMERA as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.5/1-1.5:1.0/input/input17 usbcore: registered new interface driver uvcvideo USB Video Class driver (1.1.1) When I run cheese (or guvcview), here what I get in terminal: libv4l2: error turning on stream: No space left on device (cheese:11797): cheese-WARNING **: Internal data flow error. I tried it on different usb slots with the same results The Webcam's microphone works, I can record audio with it Guys, any thoughts on what can be done to make it work?

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• Book Review&ndash;Getting Started With OAuth 2.0

  - by Lori Lalonde

  Getting Started With OAuth 2.0, by Ryan Boyd, provides an introduction to the latest version of the OAuth protocol. The author starts off by exploring the origins of OAuth, along with its importance, and why developers should care about it. The bulk of this book involves a discussion of the various authorization flows that developers will need to consider when developing applications that will incorporate OAuth to manage user access and authorization. The author explains in detail which flow is appropriate to use based on the application being developed, as well as how to implement each type with step-by-step examples. Note that the examples in the book are focused on the Google and Facebook APIs. Personally, I would have liked to see some examples with the Twitter API as well. In addition to that, the author also discusses security considerations, error handling (what is returned if the access request fails), and access tokens (when are access tokens refreshed, and how access can be revoked). This book provides a good starting point for those developers looking to understand what OAuth is and how they can leverage it within their own applications. The book wraps up with a list of tools and libraries that are available to further assist the developer in exploring the APIs supporting the OAuth specification. I highly recommend this book as a must-read for developers at all levels that have not yet been exposed to OAuth. The eBook format of this book was provided free through O'Reilly's Blogger Review program. This book can be purchased from the O'Reilly book store at: : http://shop.oreilly.com/product/0636920021810.do

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• MRP/SCP (Not ASCP) Common Issues

  - by Annemarie Provisero

  ADVISOR WEBCAST: MRP/SCP (Not ASCP) Common Issues PRODUCT FAMILY: Manufacturing - Value Chain Planning   March 9, 2010 at 8 am PT, 9 am MT, 11 am ET   This session is intended for System Administrators, Database Administrator's (DBA), Functional Users, and Technical Users. We will discuss issues that are fairly common and will provide the general solutions to same. We will not only review power point information but review some of the application setups/checks as well. TOPICS WILL INCLUDE: Gig data memory limitation Setup Requirements for MRP Manager, Planning Manager, and Standard Manager Why components are not planned Sales Order Flow to MRP Calendars Patching Miscellaneous Forecast Consumption - only if we have time A short, live demonstration (only if applicable) and question and answer period will be included. Oracle Advisor Webcasts are dedicated to building your awareness around our products and services. This session does not replace offerings from Oracle Global Support Services. Click here to register for this session ------------------------------------------------------------------------------------------------------------- The above webcast is a service of the E-Business Suite Communities in My Oracle Support. For more information on other webcasts, please reference the Oracle Advisor Webcast Schedule.Click here to visit the E-Business Communities in My Oracle Support Note that all links require access to My Oracle Support.

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• Oracle Fusion Applications Design Patterns Now Available For Developers

  - by ultan o'broin

  The Oracle Fusion Applications user experience design patterns are published! These new, reusable usability solutions and best-practices, which will join the Oracle dashboard patterns and guidelines that are already available online, are used by Oracle to artfully bring to life a new standard in the user experience, or UX, of enterprise applications. Now, the Oracle applications development community can benefit from the science behind the Oracle Fusion Applications user experience, too. The design patterns are based on Oracle ADF components and easily implemented in Oracle JDeveloper. These Oracle Fusion Applications UX Design Patterns, or blueprints, enable Oracle applications developers and system implementers everywhere to leverage professional usability insight when: tailoring an Oracle Fusion application, creating coexistence solutions that existing users will be delighted with, thus enabling graceful user transitions to Oracle Fusion Applications down the road, or designing exciting, new, highly usable applications in the cloud or on-premise. Based on the Oracle Application Development Framework (ADF) components, the Oracle Fusion Applications patterns and guidelines are proven with real users and in the Applications UX usability labs, so you can get right to work coding productivity-enhancing designs that provide an advantage for your entire business. What’s the best way to get started? We’ve made that easy, too. The Design Filter Tool (DeFT) selects the best pattern for your user type and task. Simply adapt your selection for your own task flow and content, and you’re on your way to a really great applications user experience. More Oracle applications design patterns and training are coming your way in the future. To provide feedback on the sets that are currently available, let me know in the comments!.

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• How do I parse a header with two different version [ID3] avoiding code duplication?

  - by user66141

  I really hope you can give me some interesting viewpoints for my situation, because I am not satisfied with my current approach. I am writing an MP3 parser, starting with an ID3v2 parser. Right now I`m working on the extended header parsing, my issue is that the optional header is defined differently in version 2.3 and 2.4 of the tag. The 2.3 version optional header is defined as follows: struct ID3_3_EXTENDED_HEADER{ DWORD dwExtHeaderSize; //Extended header size (either 6 or 8 bytes , excluded) WORD wExtFlags; //Extended header flags DWORD dwSizeOfPadding; //Size of padding (size of the tag excluding the frames and headers) }; While the 2.4 version is defined : struct ID3_4_EXTENDED_HEADER{ DWORD dwExtHeaderSize; //Extended header size (synchsafe int) BYTE bNumberOfFlagBytes; //Number of flag bytes BYTE bFlags; //Flags }; How could I parse the header while minimizing code duplication? Using two different functions to parse each version sounds less great, using a single function with a different flow for each occasion is similar, any good practices for this kind of issues ? Any tips for avoiding code duplication? Any help would be appreciated.

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• Video on Hyperion Tax Provision

  - by Lia Nowodworska - Oracle

  ( in via Jan) EPM Information Development has asked us to remind you about the new video available for Hyperion Tax Provision. You can view it on the OracleEPMWebcasts YouTube channel here: http://bit.ly/1jxLlCy An information rich 4:40 minutes of your time.  So please take a look. The video gives a brief overview of the main features of  Hyperion Tax Provision. You will learn ... That Tax Provision and reporting System builds on the Hyperion Financial Close Reporting Platform That much of the Tax Provision flow process is similar to the Financial Close Process and that the modules have been aligned to work together very closely. That HTP enables you to integrate Book- and Tax Reporting on a common platform. That It uses the technology of HFM, ties in with SmartView and can be used with Hyperion Financial Reporting. That the native integration between the Financial System and the Tax System creates transparency for the Tax Departments and removes bottlenecks in the tax process. More technical information can be found here: Oracle Hyperion Tax Provision Data Sheet Oracle Hyperion Tax Provision White Paper Oracle Hyperion Tax Provision Documentation If you have another 45 minutes to spare and want to get into greater detail, then you can check out the recording of an Advisor Webcast that we did earlier last year: You can find this via KM Doc Oracle Business Analytics Advisor Webcast Schedule and Archive Recordings (Doc ID 1456233.1) -> Select the Tab "Archived 2013" and it is the third from the top: "Oracle Hyperion Tax Provision - Features and Overview with Demo" If you have questions towards that Advisor Webcast, you may participate in the Community Discussion about it. (layout and post: Torben, authorized: Lia)

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• Apache DVB http video Streaming bandwidth or priority problem

  - by igino manfre'

  I'm streaming few precompressed DVB videos from cloud. The streams are generated from VLC on "impossible" ports (such as 64085, 64086 etc) reverse proxed by Apache on port 80 and 8080. All the generated streams are listed in "http://95.110.164.61/indexv.html". From an ADSL connection with enough downlink bandwidth, recalling the stream generated by VLC (such as "http://95.110.164.61:64087/mpg2_6.4") it flows fluently. Recalling the same stream proxed by Apache ("http://95.110.164.61/mpg2_6.4") the stream stops and goes. The only situation in which the Apache proxed streams flow regularly is from a site connected through 64 Mbps warranted bandwith with RTT to the server less than 10 mseconds. Please note that streams below 2 Mbps are fluently proxed. The system is a single core xeon with windows 2008 R2 on 4 GB of RAM with 1 Gbps of network bandwidth. The drain of computational and bandwidth resources is negligeable, the RAM usage always lower than 50%. On the system I run many VLC streamers. Any of them drains a variable amount of RAM (from about 25 to 70 MB). On the contrary the couple of httpd.exe processes drain no more than 7 MB. Using Wireshark (on the server) I see that VLC directy send to the client much more packets than Apache, and the stream is framgmented on many frames. I'm not a programmer, a newby of Apache. Can anyone please address me to a specific portion of the Apache's huge documentation? Thank you. igino

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• Alternative to nofollow: custom 302 url shortener?

  - by Dogweather

  Here's the scenario: lots of blogging platforms make it tedious to insert nofollow into links within the post content. I.e., you need to edit the html, format it correctly, etc. I have a client who posts lots of content with links that should be nofollow'ed, and I thought of a novel way to handle this, since the blogging platform they're using makes it hard: I install a URL shortener web app on the client's domain. The shortener works as normal, except it redirects via 302 instead of 301. The pagerank will therefore stay at the shortener's domain, and not flow on to the target site. Part 2: In order to get the pagerank to collect meaningfully, say on the site's home page, the shortened URLs would be generated like this: /link?12345 instead of /link/12345. And then, the path /link would 301 to the home page. This way, the id is a param, not a path element. And thus, all the incoming shortened links are going to one path, which transfers pagerank to the home page. So that's my idea. I wanted to see if anybody could find problems with it. Thanks!

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• Is encoding needed in this decryption?

  - by Lijo

  I have a Encryption – Decryption scenario as shown below. //[Clear text ID string as input] -- [(ASCII GetByte) + Encoding] -- [Encrption as byte array] -- [Database column is in VarBinary] -- [Pass byte[] as VarBinary parameter to SP for comparison] //[ID stored as VarBinary in Database] -- [Read as byte array] -- [(Decrypt as byte array) + Encoding + (ASCII Get String)] -- Show as string in the UI My question is in the decryption scenario. After decryption I get a byte array. I am doing an encoding (IBM037) after that. Is it correct? Is there something wrong in the flow shown above? private static byte[] GetEncryptedID(string id) { Interface_Request input = new Interface_Request(); input.RequestText = Encodeto64(id); input.RequestType = Encryption; ProgramInterface inputRequest = new ProgramInterface(); inputRequest.Test_Trial_Request = input; using (KTestService operation = new KTestService()) { return ((operation.KTrialOperation(inputRequest)).Test_Trial_Response.ResponseText); } } private static string GetDecryptedID(byte[] id) { Interface_Request input = new Interface_Request(); input.RequestText = id; input.RequestType = Decryption; ProgramInterface request = new ProgramInterface(); request.Test_Trial_Request = input; using (KTestService operationD = new KTestService()) { ProgramInterface1 response = operationD.KI014Operation(request); byte[] decryptedValue = response.ICSF_AES_Response.ResponseText; Encoding sourceByteFormat = Encoding.GetEncoding("IBM037"); Encoding destinationByteFormat = Encoding.ASCII; //Convert from one byte format to other (IBM to ASCII) byte[] ibmEncodedBytes = Encoding.Convert(sourceByteFormat, destinationByteFormat,decryptedValue); return System.Text.ASCIIEncoding.ASCII.GetString(ibmEncodedBytes); } } private static byte[] EncodeTo64(string toEncode) { byte[] dataInBytes = System.Text.ASCIIEncoding.ASCII.GetBytes(toEncode); Encoding destinationByteFormat = Encoding.GetEncoding("IBM037"); Encoding sourceByteFormat = Encoding.ASCII; //Convert from one byte format to other (ASCII to IBM) byte[] asciiBytes = Encoding.Convert(sourceByteFormat, destinationByteFormat, dataInBytes); return asciiBytes; }

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• Get 100 highest numbers from an infinite list

  - by Sachin Shanbhag

  One of my friend was asked this interview question - "There is a constant flow of numbers coming in from some infinite list of numbers out of which you need to maintain a datastructure as to return the top 100 highest numbers at any given point of time. Assume all the numbers are whole numbers only." This is simple, you need to keep a sorted list in descending order and keep a track on lowest number in that list. If new number obtained is greater than that lowest number then you have to remove that lowest number and insert the new number in sorted list as required. Then question was extended - "Can you make sure that the Order for insertion should be O(1)? Is it possible?" As far as I knew, even if you add a new number to list and sort it again using any sort algorithm, it would by best be O(logn) for quicksort (I think). So my friend told it was not possible. But he was not convinced, he asked to maintain any other data structure rather than a list. I thought of balanced Binary tree, but even there you will not get the insertion with order of 1. So the same question I have too now. Wanted to know if there is any such data structure which can do insertion in Order of 1 for above problem or it is not possible at all.

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