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• Tyrus 1.3

  - by Pavel Bucek

  I’m pleased to announce that new version of Tyrus was released today. It contains some interesting features, like asynchronous handling of connectToServer method call, optimised broadcast support and lots of stability and performance improvements. As previously – I will follow with more blog posts about selected features later. Some of them are already described in updated User guide. Complete list of bugfixes and new featuresTYRUS-262: @OnOpen fails for programmatically deployed annotated endpoint.TYRUS-261: Text decoder disables Binary decoder if both are configured for the same server endpoint; endpoint cannot receive binary messages anymore.TYRUS-248: Consolidate Extension representationTYRUS-258: Tyrus always creates HTTP sessionTYRUS-251: DecodeException is not passed to @OnError methodTYRUS-252: encoder for primitive types cannot be overridden.TYRUS-250: Sec-WebSocket-Protocol header cannot be present when there is no negotiated subprotocolTYRUS-249: WebSocketContainer MaxSessionIdleTimeout is not propagated to Session (server side)TYRUS-257: Async timeout value set on WebSocketContainer is not propagated to RemoteEndpoints (Session#getAsyncRemote())TYRUS-253: DecodeException is not passed to @OnError method from session.getAsyncRemote().sendObjectTYRUS-243: WebSocketContainer.connectToServer can block for secondsTYRUS-227: Build failure : AsyncBinaryTestTYRUS-226: Tyrus build error : OnCloseTestTYRUS-247: Make all samples use TestContainer for testsTYRUS-238: Refactor WebSocketEngine (SPI and Impl)TYRUS-157: Submitting tasks to an injected ManagedExecutorService in a ServerEndpoint does not workTYRUS-137: Improve subprotocols/extensions headers parsingTYRUS-133: Some Broadcast(er) API is needed in order to opmtimize chat-like usecasesTYRUS-245: ServerEndpointConfig#getConfiigurator returns Configurator not used when getNegotiatedExtensions has been called.TYRUS-240: clean up duplicated static fields (strings)TYRUS-230: When Session is invalidated, the close reason is not 1006TYRUS-190: Remove TyrusServetServerContainer (merge with TyrusServerContainer)TYRUS-65: Implement common utilities for testingTYRUS-242: Tyrus does not run on JDK8 compact2 profileTYRUS-237: RemoteEndpoint.Async#sendBinary does not throw IllegalArgumentException when data is nullTYRUS-239: Improve WebSocketEngine ByteBuffer handlingTYRUS-232: Refactor grizzly/servlet container – Tyrus-SPITYRUS-235: Fix findbugs errors in tests/servletTYRUS-234: Remove support for older protocol versionTYRUS-229: Session#setMaxIdleTimeout() will kill the session whether or not the session actually timed outTYRUS-225: Invalidation of (Servlet) HttpSession does not invalidate WebSocket SessionTYRUS-153: Static map in TyrusRemotEndpointTYRUS-201: Wrong ServletInputStream#isReady() usage in TyrusHttpUpgradeHandlerTYRUS-224: Refactor Connection#write and ConnectionImpl to use CompletionHandler only (no Future)TYRUS-221: wss:// doesn’t appear to function correctly via a http proxy.TYRUS-146: Support request from client to secured services (“wss”)TYRUS-223: Message can be writen multiple times when running on Servlet container TYRUS-71: ErroCollector not properly used in AnnotatedEndpoint class. Tyrus 1.3 will be integrated in Glassfish trunk soon – you can download nightly build or upgrade to newer Tyrus manually (replace all Tyrus jars).

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• How to search for a tester?

  - by MainMa

  As a freelance developer, a few times I tried to find some testers to be able to let them test my software/web applications. If I try to find them, it's because most of the customers are not intended to hire external testers and don't see why this can benefit to them, so products are UI-untested and buggy. I tried lots of things. Discussion boards for IT people, specific websites for people who search for a job. Every time I clearly precise that I'm looking for product testers. I completely failed to find anybody for this job. I found instead two types of people: Non IT people who try to qualify as testers, but don't have enough skills for that, and don't really know what testing is and how to do it, Programmers, who are skilled as programmers, but not as testers, and who mostly don't understand neither what testing is about (or think it's the same thing as code review, or it consists in writing unit tests). Of course, they submit general programmers resumes, where they describe their high experience in Assembler and C++, but don't tell anything about anything related to the job of a tester. What I'm doing wrong? Isn't it called "tester"? Is there at least a tester job, different from general programming job? Is there any precise requirement to require from each candidate which can eliminate non IT people and general programmers?

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• Apache (XAMPP 1.8.0) access.log/Intrusion Detection Concern

  - by Andy Holaday

  [I originally posted on SO but it earned me a Tumbleweed badge. This looks like a better venue for the question.] I have Apache (XAMPP 1.8.0) running on Vista Pro x64. A couple times now I have seen a pattern like the example below in access.log. Concerning is the "attack" seems to somehow shift from a public IP to a valid private IP on my network (happens to be the WAN address of one of my routers). Two questions: How is this possible, and what happens if the "attacker" stumbles on a valid request? I've googled this to no avail. 177.0.X.X - - [03/Jun/2012:08:19:34 -0400] "GET /phpMyAdmin-2.5.4/index.php HTTP/1.1" 403 177.0.X.X - - [03/Jun/2012:08:19:34 -0400] "GET /phpMyAdmin-2.5.5-rc1/index.php HTTP/1.1" 403 177.0.X.X - - [03/Jun/2012:08:19:34 -0400] "GET /phpMyAdmin-2.2.6/index.php HTTP/1.1" 403 177.0.X.X - - [03/Jun/2012:08:19:34 -0400] "GET /phpMyAdmin-2.5.5-rc2/index.php HTTP/1.1" 403 192.168.15.3 - - [03/Jun/2012:08:19:56 -0400] "GET /phpMyAdmin-2.5.6-rc2/index.php HTTP/1.1" 403 177.0.X.X - - [03/Jun/2012:08:19:56 -0400] "GET /phpMyAdmin-2.5.6-rc1/index.php HTTP/1.1" 403 177.0.X.X - - [03/Jun/2012:08:19:56 -0400] "GET /phpMyAdmin-2.5.5-pl1/index.php HTTP/1.1" 403 192.168.15.3 - - [03/Jun/2012:08:19:59 -0400] "GET /phpMyAdmin-2.5.7/index.php HTTP/1.1" 403 192.168.15.3 - - [03/Jun/2012:08:20:01 -0400] "GET /phpMyAdmin-2.5.7-pl1/index.php HTTP/1.1" 403 192.168.15.3 - - [03/Jun/2012:08:20:02 -0400] "GET HTTP/1.1" 400 1060 "-" "-"

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• Issue 55 - Skin Object Tokens, Optimized Control Panel, OWS Validation and Security, RAD

  April 2010 Welcome to Issue 55 of DNN Creative Magazine In this issue we focus on the new Skin Object token method introduced in DotNetNuke 5 for adding tokens into a DotNetNuke skin. A Skin Object Token is a web user control which covers skin elements such as the logo, menu, search, login links, date, copyright, languages, links, banners, privacy, terms of use, etc. Following this we demonstrate how to install and use two Advanced DotNetNuke Admin Control Panels which are available for free from Oliver Hine. These control panels provide an optimized version of the admin control panel to improve performance and page load times, as well as a ribbon bar control panel which adds additional features. Next, we continue the Open Web Studio tutorials, this month we demonstrate some very advanced techniques for building a car parts application in Open Web Studio. Throughout the tutorial we cover form input, validation, how to use dependant drop down lists, populating checkbox lists and introduce a new concept of data level security. Data level security allows you to control which data a user can access within a module. To finish, we have part five of the "How to Build a News Application with DotNetMushroom Rapid Application Developer (RAD)" article, where we demonstrate how to implement paging. This issue comes complete with 14 videos. Skinning: Skin Object Tokens for DotNetNuke 5 (8 videos - 64mins) Free Module: Advanced Optimized Control Panel by Oliver Hine (1 video - 11mins) Module Development Series: Form Validation, Dependant Drop Downs and Data Level Security in OWS (5 videos - 44mins) How to Implement Paging with DotNetMushroom RAD View issue 55 to download all of the videos in one zip file DNN Creative Magazine for DotNetNuke Web Designers Covering DotNetNuke module video reviews, video tutorials, mp3 interviews, resources and web design tips for working with DotNetNuke. In 55 issues we have created 563 videos!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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• Computer Science Programming Certificate vs. Computer Science Degree?

  - by Jess

  I'm kind of in a tough spot. My current living conditions require that I work a full-time job while attending school. I've attended a UC in the past but had to withdraw my junior year due to financial issues at home. I currently work an entry-level IT corp job but I'm looking to further my salary/skills by getting a degree, or a programming certificate like this one: http://www.lavc.edu/voced1/CSITCertCSP/CSITCertFrameCSP.htm Herein lies the problem. I prefer getting a CS degree from an accredited university but I looked at the schedules for classes and it is impossible to work around my current 40/hr work week. There are random morning classes, with the occasional evening class, but the times get even more construed as I move my way up to the upper divisions. So what I guess I'm trying to get at is, can anyone lay out the pros and cons of obtaining a certificate vs. the degree (besides obvious points like the latter being 100x better)? I'm aware that having a degree is always going to be a better route, but...is the programming certificate useless? Should I not even bother?

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• Java’s Aromatic Message

  - by Kristin Rose

  Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Kicking off day 4 of Oracle OpenWorld with a hot cup of Java has never tasted so good! The Java Exchange @ JavaOne keynote took place this morning and covered topics such as M2M and marketing strategy. Senior Vice President of Oracle's Worldwide Alliances and Channels, Judson Althoff, discussed how Java’s device to data center reach offers customers and partners across a range of industries, significant business advantages by minimizing development costs, testing cycles, and time-to-market while maximizing application reuse, solution flexibility and end-to-end security. All in all, each presenter offered interesting insight into how Java is affecting the world we live in today, as well as how it will affect us in the future. With the potential of 50 billion connected devices by 2020, the world of embedded Java is calling and we need to answer! Can We Refill Your Java? The OPN Communications Team

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• C# XNA: Effecient mesh building algorithm for voxel based terrain ("top" outside layer only, non-destructible)

  - by Tim Hatch

  To put this bluntly, for non-destructible/non-constructible voxel style terrain, are generated meshes handled much better than instancing? Is there another method to achieve millions of visible quad faces per scene with ease? If generated meshes per chunk is the way to go, what kind of algorithm might I want to use based on only EVER needing the outer layer rendered? I'm using 3D Perlin Noise for terrain generation (for overhangs/caves/etc). The layout is fantastic, but even for around 20k visible faces, it's quite slow using instancing (whether it's one big draw call or multiple smaller chunks). I've simplified it to the point of removing non-visible cubes and only having the top faces of my cube-like terrain be rendered, but with 20k quad instances, it's still pretty sluggish (30fps on my machine). My goal is for the world to be made using quite small cubes. Where multiple games (IE: Minecraft) have the player 1x1 cube in width/length and 2 high, I'm shooting for 6x6 width/length and 9 high. With a lot of advantages as far as gameplay goes, it also means I could quite easily have a single scene with millions of truly visible quads. So, I have been trying to look into changing my method from instancing to mesh generation on a chunk by chunk basis. Do video cards handle this type of processing better than separate quads/cubes through instancing? What kind of existing algorithms should I be looking into? I've seen references to marching cubes a few times now, but I haven't spent much time investigating it since I don't know if it's the better route for my situation or not. I'm also starting to doubt my need of using 3D Perlin noise for terrain generation since I won't want the kind of depth it would seem best at. I just like the idea of overhangs and occasional cave-like structures, but could find no better 'surface only' algorithms to cover that. If anyone has any better suggestions there, feel free to throw them at me too. Thanks, Mythics

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• So, whats the best book on C#?

  - by mbcrump

  I see this question several times a day from newbie’s to professionals. I have listed the best C# books that I have read so far.   ECMA-334 C# Language Specification. – FREE book. This is probably the best place to start. Read it backwards and forwards and you can even request a hard copy. Absolute Beginners Guide to C Sharp 2nd Edition – Used this early on and found it very useful even if its game programming. C-Sharp 2.0 - The Complete Reference, 2nd Edition (McGraw-Hill, 2006) – One of the most useful books that is always with me. It contains short example code and is very well written. Dot Net Zero - Charles Petzold  - FREE book and you should definately give it a read. C Sharp in Depth by Jon Skeet -  Probably one of the most in depth books on C Sharp and definitely not for beginners. Jon Skeet knows C# like no other. I would consider this book the Bible of C#. If you understand 50% of this book, you have a good understanding of the language.  CLR via C Sharp 3rd Edition – I just started reading this book and it is another book thats not for beginners. If you really want to understand the CLR then give this book a try. Well, thats it. I hope you enjoy the books as I have spent a lot of time researching different C# books.

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• Games Localization: Cultural Points

  - by ultan o'broin

  Great article about localization considerations, this times in the games space. Well worth checking out. It's rare to see such all-encompassing articles about localization considerations aimed at designers. That's a shame. The industry assumes all these things are known. The evidence from practice is that they're not and also need constant reinforcement. We're not in the games space in enterprise applications yet. However, there may be a role for them in the training space but also in CRM, building relationships and contacts. Beyond the obvious considerations, check out the cultural aspects of games localization too. For example, Zygna's offerings, which you might have played on Facebook: Zynga, which can lay claim to the two most popular social games on Facebook - FarmVille and CityVille - has recently localized both games for international audiences, and while CityVille has seen only localization for European languages, FarmVille has been localized for China, which involved rebuilding the game from the ground up. This localization process involved taking into account cultural considerations including changing the color palette to be brighter and increasing the size of the farm plots, to appeal to Chinese aesthetics and cultural experience. All the more reason to conduct research in your target markets, worldwide.

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• WordPress page title repeated in SOME pages

  - by cmykrgbb

  I have created a Wordpress site and titles were working just fine. Then, some time and plugins installed later, I noticed that in SOME pages I get the title repeated 2 times. Example of wrong page title: Contact - NAME | NAME Example of normal title: Our Services | NAME Now, if I go to General Settings and change title it will change both, no improvement. SEO by Yoast has the option to reset page titles, but that just removes all titles leaving the current URL as page title, so no good either. Here is the code I originally had: <title><?php wp_title(''); ?><?php if(wp_title('', false)) { echo ' | '; } ?><?php bloginfo('name'); ?></title> Here is the code I am using now: <title><?php wp_title('|'); ?></title> To sum up, I think somewhere in the database there's a wp_title repeated: once using '-' as separator, another one (the current one) using '|'. Any help will be most appreciated, thanks!

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• Running Non-profit Web Applications on Cloud/Dedicated Hosting [closed]

  - by cillosis

  Possible Duplicate: How to find web hosting that meets my requirements? I often times build web applications purely because I enjoy it. I like building useful tools or open source applications that don't come with a price tag. That being said, many of these applications can be quite complex requiring services beyond shared hosting (ex. specific PHP extensions). This leaves me with two options: Make the web application less complex and run on shared hosting. Fork out money for cloud or dedicated/VPS hosting. Considering the application is free (I don't make money off of it intentionally), the money for hosting comes out of my own pocket. I know I am not alone in this sticky situation. So the question is, what are the hosting options that provide more advanced features such as shell access via SSH, ability to install specific software/extensions (ex. if I wish to use a NoSQL DB such as Redis, MongoDB, or Cassandra), etc., at a free or low price point? I know free usually equates to bad/unreliable hosting -- but it's not always the case. There are a couple providers with free plans I know of: Amazon EC2 - Free micro-instance for 1 year AppHarbor - Cloud based .NET web application hosting w/ free plan. What else is available for hosting of non-profit applications?

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• SharePoint Web Part Constructor Fires Twice When Adding it to the Page (and has a different security

  - by Damon

  We had some exciting times debugging an interesting issue with SharePoint 2007 Web Parts.  We had some code in staging that had been running just fine for weeks and had not been touched or changed in about the same amount of time.  However, when we tried to move the web part into a different staging environment, the part started throwing a security exception when we tried to add it to a page.  After a bit of debugging, we determined that the web part was throwing the exception while trying to access the SPGroups property on the SharePoint site.  This was pretty strange because we were logged in as an admin and the code was working perfectly fine before.  During the debugging process, however, we found out that the web part constructor was being fired twice.  On one request, the security context did not seem to have everything it needed in order to run.  On the other request, the security context was populated with the user context with the user making the request (like it normally is).  Moving the security code outside of the constructor seems to have fixed the issue. Why the discrepancy between the two staging environments?  Turns out we deployed the part originally, then deployed an update with the security code.  Since the part was never "added" to the page after the code updates were made (we just deployed a new assembly to make the updates), we never saw the problem.  It seems as though the constructor fires twice when you are adding the web part to the page, and when you run the web part from the web part gallery.  My only thought on why this would occur is that SharePoint is instantiating an instance to get some information from it - which is odd because you would think that would happen with reflection without requiring a new object.  Anyway, the work around is to just not put anything security related inside the constructor, or to do a good job accounting for the possibility of the security context not being present if you are adding the item to the page. Technorati Tags: SharePoint,.NET,Microsoft,ASP.NET

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• How to run boot loader in VMWare?

  - by Asim Haroon

  I am using Ubuntu as a virtual machine in VMWare. I have used this code to write a boot loader which would write Hello world on the screen. [BITS 16] [ORG 0x7C00] MOV SI, HelloString CALL PrintString JMP $ PrintCharacter: MOV AH, 0x0E MOV BH, 0x00 MOV BL, 0x07 INT 0x10 RET PrintString: next_character: MOV AL, [SI] INC SI OR AL, AL JZ exit_function CALL PrintCharacter JMP next_character exit_function: RET HelloString db 'Hello World', 0 TIMES 510 - ($ - $$) db 0 DW 0xAA55 I wrote this code in the text editor in Ubuntu and saved the file as Boot.asm Then I compiled the Boot.asm to boot.bin file by using this command nasm -f bin -o boot.bin Boot.asm and it didn't gave me any errors. After that I copied the boot.bin file to my usb and took it to my Windows OS. After this I burned the boot.bin file to boot.img and boot.iso files. Then I created a new virtual machine and named it booter, when it asked for the .iso file of the OS I want to run I gave it the boot.iso file, about which I told above, then I powered on that virtual machine but it gave me this error PXE-M0F: No boot filename received PXE-M0F: Exiting Intel PXE ROM Operating System not found Please tell me what is the main problem and how can I overcome that problem.

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• Can AJAX in a CMS slow down your server

  - by Saif Bechan

  I am currently developing some plugins for WordPress, and I was wondering which route to take. Let's take an example, you want to display the last 3 tweets on your page. Option 1 You do things the normal way inside WordPress. Someone enters the website, while generating the page, you fetch the tweets in php via the twitter api, and just display them where you want. Now the small problem with this is, that you have to wait for the response from twitter. This takes a few ms. NO real problem, but this is question is just out of curiosity. Option 2 Here you don't do anything in WordPress on the initial load, but you do have the API inside. Now you just generate the page, and as soon as the page is done on the client side, you do a small AJAX call back to the server via a WordPress plugin, to fetch your latest tweets. Also called asynchronously. Now the problem with this IMO is that you have much more stress on your server. For starters you have two HTTP requests instead of one. Secondly the WordPress core has to load two times instead of one. Other options Now I know there are a lot of other options: 1) Getting the tweets directly via javascript, no stress on the server at all. 2) Cache the tweets so they are fetched from the DB instead of using the API every time. 3) Getting the tweets from an ajax call that is not a WordPress plugin. 4) Many more. My Question Now my question is if you only compare 1 and 2, which would be a better choice.

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• Strange characters appearing on websites - ASCII? - UNICODE?

  - by Mick

  I have created many very simple pure HTML websites over the years. Most of them appear to work fine most of the time. But there is one recurring problem which I have never quite sorted out involving strange characters. The scenario goes like this: I create the site. I look at it in my browser, everything appears fine. I may look at it a great many times over the coming weeks or months as I make additions here and there. Perhaps on a variety of browsers on a variety of PC's. Then one day I look at the page and see a random sprinkling of white question marks against dark diamond shapes. These might appear where I had expected to see hyphens or quotes or apostrophes. My immediate thought is that my browser got into some strange state because I was looking at some foreign website with strange characters, but I'm never quite sure. I'm left with that nagging feeling that perhaps half the planet is seeing my website with funny question marks all over it. So my question is what's going on? What should I do to ensure that as many people as possible around the world can view my text as I originally intended? Should I be using those special html sequences like &pound; for all non alphanumeric characters? Should I worry at all? Edit: Right now I have the problem occurring on this page: http://www.fullreservebanking.com/papers.htm ... part of it looks like this: I am using FireFox 5 and the character encoding currently appears to be "UNICODE (UTF-8)". I do not remember manually setting the character encoding to anything since installation. I do occasionally look at Japanese websites for work related reasons - though when I do so, I do not manually make any changes to firefox settings. Edit: Now fixed. Web page altered accordingly.

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• Webcast: June 29th at 11am Eastern - Optimize ePermitting Reviews & Approvals with AutoVue

  - by Warren Baird

  I'm pleased to announce that the Enterprise Visualization special interest group (SIG) is organizing it's first webcast on June 29th - Palm Beach County is going to present how they use AutoVue as part of their e-permitting processes.  This is a must-see for anyone in the Public Sector, but even for people who aren't in the Public Sector, it should be very interesting to see how Palm Beach County has tied AutoVue tightly into their business processes.If you haven't already done so, I'd suggest joining up for our SIG at http://groups.google.com/group/enterprise_visualization_sig.The registration link for the webcast is: https://www3.gotomeeting.com/register/565294190 - more details are below:The Enterprise Visualization Special Interest Group (EVSIG) is proud to present the first in a series of webcasts designed to educate the AutoVue user community on innovative and compelling AutoVue solutions.  Attend the Webcast and discover how AutoVue can make building permit application and approval processes more efficient.Presenters:Oracle: Warren Baird, Principal Product Manager, AutoVue Enterprise VisualizationPalm Beach County: Paul Murphy, Systems IntegratorLaura Yonkers, Permit Section SupervisorChuck Lemon, Project Business AnalystAbstract:In their efforts to deliver better services to citizens, save money and “think green”, many cities, states and local governments have implemented online e-permitting processes that allow developers and citizens to apply for and receive building permits via the Web.Attend this webcast and discover how AutoVue visualization solutions enhance ePermitting processes by streamlining the review and approval of digital permit applications.  Hear from Palm Beach County about how they leveraging AutoVue within their ePermitting system to:·         provide structure to the land development review and approval process·         accelerate and improve efficiency throughout the permitting process·         decrease permit review times·         increase the level of transparency during the permit application and review process·         improve accountability in the organization·         improve citizen services by providing 24-7 ability to submit and track applicationsSign up for the Enterprise Visualization SIG to learn about future AutoVue Webcasts. Register today at http://groups.google.com/group/enterprise_visualization_sig and become a part of our growing online user community. We look forward to seeing you on the 29th of June.

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• Coding Dynamic Events?

  - by Joey Green

  I have no idea what the title of this question should be so bare with me. My game has turns. On a turn a player does something and this can result in a random number of explosions that occur at different times. I know when the explosions are done. I need to know when ALL are done and then do some other action. Also, each explosion is the same amount of time, say 3 seconds.. Right now I'm thinking of using a counter to hold how many explosions are happening. Then once the explosion is finished decrement this counter. Once the counter is zero, do my action. This idea is inspired by objective-c memory management btw. Anyways, does this sound like a good approach or would there be another way. An alternative might be to figure out the explosion who happened last and let it be responsible for calling this subsequent action. I'm asking mostly, because I haven't done this before and am trying to figure out if there are bugs that may occur that I'm not foreseeing.

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• How to Recover that Photo, Picture or File You Deleted Accidentally

  - by The Geek

  Have you ever accidentally deleted a photo on your camera, computer, USB drive, or anywhere else? What you might not know is that you can usually restore those pictures—even from your camera’s memory stick. Windows tries to prevent you from making a big mistake by providing the Recycle Bin, where deleted files hang around for a while—but unfortunately it doesn’t work for external USB drives, USB flash drives, memory sticks, or mapped drives. Luckily there’s another way to recover deleted files. Note: we originally wrote this article a year ago, but we’ve received this question so many times from readers, friends, and families that we’ve polished it up and are republishing it for everybody. So far, everybody has reported success! Latest Features How-To Geek ETC How to Recover that Photo, Picture or File You Deleted Accidentally How To Colorize Black and White Vintage Photographs in Photoshop How To Get SSH Command-Line Access to Windows 7 Using Cygwin The How-To Geek Video Guide to Using Windows 7 Speech Recognition How To Create Your Own Custom ASCII Art from Any Image How To Process Camera Raw Without Paying for Adobe Photoshop What is the Internet? From the Today Show January 1994 [Historical Video] Take Screenshots and Edit Them in Chrome and Iron Using Aviary Screen Capture Run Android 3.0 on a Hacked Nook Google Art Project Takes You Inside World Famous Museums Emerald Waves and Moody Skies Wallpaper Change Your MAC Address to Avoid Free Internet Restrictions

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• Is an ACPI GPE storm normal in an Ubuntu session?

  - by Tinellus

  In a previous question (What is a an ACPI GPE storm?), I asked about ACPI GPE storm. Looking closer to my kern.log file in /var/log/, I notice that in every session at some point (usually withing 20' after startup) a GPE storm is triggered. When I open kern.log immediately after startup, I see that the 'GPE-storm' can be triggered by anything (a copy-action, the opening of an app like Firefox or Thunderbird, etc...). This worries me. Looking for other ACPI related events in kern.log, I find these error messages. I hope someone can give some advice: Jun 10 16:33:20 Guy-VAIO kernel: [ 0.724505] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it Jun 10 16:33:20 Guy-VAIO kernel: [ 0.795205] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored Jun 10 16:33:20 Guy-VAIO kernel: [ 1.024009] ACPI: Deprecated procfs I/F for battery is loaded, please retry with CONFIG_ACPI_PROCFS_POWER cleared Jun 10 16:33:20 Guy-VAIO kernel: [ 23.140259] [Firmware Bug]: ACPI(VGA) defines _DOD but not _DOS There's also a video driver message that worries me, don't know if it's related though: Jun 10 16:33:20 Guy-VAIO kernel: [ 23.162154] fglrx: module license 'Proprietary. (C) 2002 - ATI Technologies, Starnberg, GERMANY' taints kernel. Jun 10 16:33:20 Guy-VAIO kernel: [ 23.162158] Disabling lock debugging due to kernel taint As mentioned in my previous question, I'm experiencing frequent (several times /d) application crashes, that seem random, with apport messages being sent, and less frequent (once a week or so) complete system freezes where the system becomes unresponsive to keyboard, mouse or touchpad input and the only solution is a hard reboot (press start button) My questions: what about the Firmware Bugs in ACPI? how and where do I have to 'clear CONFIG_ACPI_PROCFS_POWER'? what does it mean when fglrx 'taints the kernel', is it serious and what could I do about it? Ubuntu 12.04, 64-bit, 3.2.0-25-generic Kernel, Intel® Core™ i5-2430M CPU @ 2.40GHz × 4 Thanks

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• Rotation of bitmap using a frame by frame animation

  - by pengume

  Hey every one I know this has probably been asked a ton of times but I just wanted to clarify if I am approaching this correctly, since I ran into some problems rotating a bitmap. So basically I have one large bitmap that has four frames drawn on it and I only draw one at a time by looping through the bitmap by increments to animate walking. I can get the bitmap to rotate correctly when it is not moving but once the animation starts it starts to cut off alot of the image and sometimes becomes very fuzzy. I have tried public void draw(Canvas canvas,int pointerX, int pointerY) { Matrix m; if (setRotation){ // canvas.save(); m = new Matrix(); m.reset(); // spriteWidth and spriteHeight are for just the current frame showed m.setTranslate(spriteWidth / 2, spriteHeight / 2); //get and set rotation for ninja based off of joystick m.preRotate((float) GameControls.getRotation()); //create the rotated bitmap flipedSprite = Bitmap.createBitmap(bitmap , 0, 0,bitmap.getWidth(),bitmap.getHeight() , m, true); //set new bitmap to rotated ninja setBitmap(flipedSprite); // canvas.restore(); Log.d("Ninja View", "angle of rotation= " +(float) GameControls.getRotation()); setRotation = false; } And then the Draw Method here // create the destination rectangle for the ninjas current animation frame // pointerX and pointerY are from the joystick moving the ninja around destRect = new Rect(pointerX, pointerY, pointerX + spriteWidth, pointerY + spriteHeight); canvas.drawBitmap(bitmap, getSourceRect(), destRect, null); The animation is four frames long and gets incremented by 66 (the size of one of the frames on the bitmap) for every frame and then back to 0 at the end of the loop.

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• Getting into game/game engine programming

  - by Darkslash

  So I am interested in learning game programming, but I really have an interest in the lower level engineering in games. I have openGL experience, and I am really interested in learning more about implementing AI, Physics, etc. I have a computer science degree, so I really like getting into technical stuff. Many times when I ask about this sort of thing, I get a lot of "Use an engine", "Use Unity3d", "Why waste your time writing code that already exists", etc etc. My idea was to use simpler libraries such as SFML or XNA so that I could learn how to implement the more complex systems. The thing is, although I do want to write games, I want to learn things that using something like Unity simply doesnt teach you. My goal is not to make a current generation quality 3D game to sell, I just want to make some cool smaller games and learn all I can about the programming side of game development. Is this something that people just do not do anymore? It seems like everywhere I turn people are using Unity or UDK or GameMaker. I fully understand why you would use a tool like these, but I cant see how they would suit my purposes. So where does someone like myself turn? Am I trying to learn something that people just do not bother doing anymore? Is the innovation in this area gone and just all about gameplay now? Im sorry if this question seems silly, but I am genuinely interested in knowing more about this and meeting more people who are interested in this sort of thing.

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• Releasing an open source project without getting embarrassed

  - by Hopeful

  I've been working by myself on a fairly large open source project for quite a while and it's nearing the point where I'd like to release it. However, I'm self-taught and I don't really know anyone who could adequately review my project. A few years ago, I had released a small bit of code which pretty much got ripped apart (in a critical sense) on the forum where I released it. Even though the code worked, the criticism was accurate but brutal. It prompted me to begin searching for best practices for everything and in the end I feel that it made me a much better developer. I've gone over everything in my project so many times trying to make it perfect that I've lost count. I believe in my project and think it has the potential to help a lot of people and I feel like I've done some cool things in interesting ways with it. Still, because I'm self-taught, I can't help but wonder what gaps exist in my self-education. The way my code was ripped apart last time isn't something I'd like to repeat. I think my two biggest fears with releasing my project that I've poured countless hours into are being absolutely embarrassed because I missed some patently obvious things because of my self-education or, worse, releasing it to the sound of crickets. Is there anyone who has been in a similar situation? I'm not afraid of constructive criticism, so long as it is constructive and not just a rant on how I screwed up. I know there is a code review site on StackExchange, but it's not really set up for large projects and I didn't feel like the community there is large enough yet to get good feedback if I were to post parts of my project piecemeal (I tried with one file). What can I do to give my project at least some measure of success without getting embarrassed or devestated in the process?

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• How can I retrieve the details of the file from an outbound operation in BPEL 11g

  - by [email protected]

  Several times, we come across requirements where we need to capture the details of the file that got written out as a part of a BPEL process invoking a File/Ftp Adapter. Consider a case where we're using FileNamingConvention as "PurchaseOrder_%SEQ%.txt" and we need to do some post processing based on the filename (please remember that we wouldn't know the filename until the adapter invocation completes) In order to achieve this, we need to manually tweak the WSDL so that the File/Ftp Adapter can return the metadata of the file that was written out. In general, the File/Ftp Write/Put WSDL operations are one way as shown below:         The File/Ftp Adapters are designed to return the metadata back if this WSDL is tweaked into a two-way WSDL. In addition, the <wsdl:output/> must import the fileread.xsd schema (see below). You will need to copy fileread.xsd from  here into the xsd folder of your composite.       Finally, we will need to tweak the  WSDL. (highlighted below)           Finally, the BPEL <invoke> would look as shown below. Please note that the file metadata would be returned as a part of the BPEL output variable:

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• Touchpad hardware button disables keyboard too

  - by jjg

  I have an old but nice Samsung X50 running MM which has a key between the touchpad buttons which disables the touchpad. Very nice, no-one like to brush against the touchpad while typing. It seems to be a hardware feature -- a BIOS style window appears at the top left of the screen when you press it saying "touchpad off"; and when you press it again it says "touchpad on", and so it is, but now the keyboard has no effect in X, I can type nothing except to meta-ctl F1 to the console. After a reboot the problem persists; and the only way I have found to fix it is to blow away .gconf are replace it with a copy I made in happier times. Deleting/modifying .gconf/desktop/gnome/peripherals/touchpad/%gconf.xml does not fix the problem. There is no way to turn off the switch in BIOS without losing the touchpad. I would prise the thing out with a screwdriver if I could, but it's a work machine. This button is the bane of my life, hanging over me like a sword of Damocles.

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• Websockets through Stunnel is giving random bytes.

  - by user16682

  I have several servers set up for a web application that I am developing. One is a load balancing server, and I'm running a php WebSockets server on this balancer. The website that I am developing on uses ssl, so I have my WebSockets running through a wss uri connecting directly to the balancer, where I have set up stunnel4 to decrypt all traffic at a certain port and re-rout it to my php WebSockets server. This works fine when it comes down to connecting to my server. That's not the problem. The problem occurs when I try to send data to the server. Occasionally when I try this, stunnel does not appear to be decrypting the data properly. I get garbage characters in my termanal running the server: what appear to be completely random bytes. This can sometimes go on for several consecutive messages that I send before abruptly working again. It is very erratic and unpredictable. Sometimes I refresh the page, and all the messages work perfectly. Sometimes the WebSocket connects and I have to wait 5-10 seconds before any messages I send are interpreted properly by the server. Other times I can't send any messages at all, because they all end up as garbage. I believe this is a stunnel problem, but I am not certain. Does anybody have any experience with this? I would like a more predictable server if I can get it. Some more information: This occurs extensively in Chrome, not quite as much in FireFox, and never in Safari. The php server I am using is phpws http://code.google.com/p/phpws/ -- On the WebSocket connection, this server would sometimes detect that the header was only 1 byte in size, the first byte of the WebSockets header. I had to modify the server to flush the buffer ever time this occurred so that it would reliably connect.

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