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• ADF - Now with Robots!

  - by Duncan Mills

  I mentioned this briefly in a tweet the other day, just before the full rush of OOW really kicked off, so I though it was worth re-visiting. Check out this video, and then read on: So why so interesting? Well - you probably guessed from the title, ADF is involved. Indeed this is as about as far from the traditional ADF data entry application as you can get. Instead of a database at the back-end there's basically a robot. That's right, this remarkable tape drive is controlled through an ADF using all your usual friends of ADF Faces, Controller and Binding (but no ADFBC for obvious reasons). ADF is used both on the touch screen you see on the front of the device in the video, and also for the remote management console which provides a visual representation of the slots and drives. The latter uses ADF's Active Data Framework to provide a real-time view of what's going on the rack. . What's even more interesting (for the techno-geeks) is the fact that all of this is running out of flash storage on a ridiculously small form factor with tiny processor - I probably shouldn't reveal the actual specs but take my word for it, don't complain about the capabilities of your laptop ever again! This is a project that I've been personally involved in and I'm pumped to see such a good result and,  I have to say, those hardware guys are great to work with (and have way better toys on their desks than we do). More info in the SL150 (should you feel the urge to own one) is here. 

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• "That's cool. But it would be even better if..."

  - by Geertjan

  I recently talked to some NetBeans users who were interested in a demonstration of the features that will be part of NetBeans IDE 7.2. (See the 7.2 New and Noteworthy for the full list.) One of the new features I demonstrated was this one. In an interface declaration, NetBeans IDE 7.2 will provide a hint, as can be seen in the sidebar below: When the lightbulb is clicked, or Alt-Enter is pressed, this will be shown: When the hint is invoked, the user will see this: And then the user will be able to enter the name of a class, and the name of a package, and assuming the defaults above are taken, a class with this content will be generated: package demo; public class WordProcessorImpl implements WordProcessor {     @Override     public String process(String word) {         throw new UnsupportedOperationException("Not supported yet.");     } } When I demonstrated the above, the response from the audience was: "That's cool. But it would be even better if..." it was possible to implement an interface into an existing class. it was possible to select a class and specify the interfaces that it should implement. it was possible, in the context of a NetBeans Platform application, to specify the module where the class should be implemented. So I created some issues: Implement an interface into an existing class http://netbeans.org/bugzilla/show_bug.cgi?id=210804 Select class and specify interfaces to implement http://netbeans.org/bugzilla/show_bug.cgi?id=210805 Allow user to select module for generating implementation http://netbeans.org/bugzilla/show_bug.cgi?id=210807

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• how to use rsa in application i found code but dont know how to implement [closed]

  - by Smart Guy

  HOW TO I USE THIS RSA http://xtrace.blogspot.com/2012/03/rsa-demo-example.html?showComment=1349091173502#c199333123405145467 TUTOTIAL CODE IN MY LOGIN CODE BELOW I found code but dnt know how to implement public class LoginScreen extends Activity implements OnClickListener{ public void onCreate(Bundle icicle) { super.onCreate(icicle); setContentView(R.layout.login.xml); TextView lblMobileNo = (TextView)findViewById(R.id.lblMobileNo); lblMobileNo.setTextColor(getResources().getColor(R.color.text_color_red)); mobile = (EditText)findViewById(R.id.txtMobileNo); TextView lblPinNo = (TextView)findViewById(R.id.lblPinNo); lblPinNo.setTextColor(getResources().getColor(R.color.text_color_red)); pin = (EditText)findViewById(R.id.txtPinNo); btnLogin = (Button)findViewById(R.id.btnLogin); btnClear = (Button)findViewById(R.id.btnClear); btnLogin.setOnClickListener(new OnClickListener() { public void onClick(View view) { postLoginData(); } }); btnClear.setOnClickListener(new OnClickListener() { public void onClick(View v) { cleartext(); } }); /* btnClear.setOnClickListener(new OnClickListener() { public void onClick(View arg0) { } }); */ } public void postLoginData() { Intent i = new Intent(this.getApplicationContext(),NEWCLASS.class); Bundle bundle = new Bundle(); bundle.putString("mno", mobile.getText().toString()); bundle.putString("pinno", pin.getText().toString()); i.putExtras(bundle); startActivity(i); } } @Override public void onClick(View v) { } public void cleartext() { { pin.setText("") ; mobile.setText(""); } } }

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• 4?????????????(Fusion Middleware??)

  - by rika.tokumichi

  ??????????OTN????????? ????????????????????????????????????????????????????? ???????????????????????????????? ????????????????????????????????????????????? ??????Fusion Middleware??4?1?~4?30?????????????! ??????????? 1?:Oracle WebLogic Server 11g?Download? 2?:Oracle JDeveloper 11g?Download? 3?:Oracle JRockit Mission Control 3.1.2?Download? 4?:Oracle SOA Suite 11g ?Download? 5?:Oracle JDeveloper 10g?Download? (????4?1?~4?30?) 1?~3??????????4??5??????????!??Oracle Fusion Middleware 11g R1 (11.1.1.3) ????? ??????????????????????????????? ??????????????????????????????????????? ?????????????????????????????????????????????????????????????????? >S/N Ratio Oracle Fusion Middleware 11g R1 (11.1.1.3) ???? (WebLogic?SOA?BPM?WebCenter?JDeveloper) ?????????OTN??????????????????????????? ??????7??????????Oracle Coherence?????????????????????? ???????????????????????????????????????????????????????????? Oracle Coherence ?????????????????? ??????????????????????????????????????????^^ OTN?????????? ??????????????????·???·???????????????????????????????????????? >Oracle Coherence???????????? ???? ????????????????? ???????????FX???????????????????FX??????????????????? >???FX?? - ?????????????????????(5/19) OTN?????????? 30??Oracle Coherence ???????????????????OracleFlash??????????pdf???????????? >Oracle Coherence ???? ?Flash?? >Oracle Coherence ???? ?pdf?? ????????????????????????Java?????????·?????????????? Oracle Coherence????????????????????????????????? ??? Oracle Coherence???????????????????????? ?????·??????????????? >?1?:?????????????!??????????????? >?2?:?????·?????????????????? >?3?:?????·??????????????:????? ?????? >Oracle Coherence?Oracle WebLogic Server:Eclipse??????? ??? >???? >?????? >???????????? ??????????????????????!

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• Using the RadTransitionControl in Task-It

  Download Source Code NOTE: To run the source code provided your will need to update to the RC (release candidate) versions of Silverlight 4 and VisualStudio 2010.  In a recent Ask the Experts webinar I showed a simple solution that had similarities to one that I had used in my recent MVVM post, but had a few extra twists on it. I have since been asked if I could post the source code for this demo, so here it is (I am using similar techniques in my Task-It application). The database Before running the code for this app you will need to create the database. First, create a database called MVVMProject in SQL Server, then run MVVMProject.sql in the MVVMProjectDemo/Database directory of your downloaded .zip file. This should give you a Task table with 3 records in it. You will also need to update the connection string in web.config to point to your database ...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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• Create Adjustable Depth of Field Photos with a DSLR

  - by Jason Fitzpatrick

  If you’re fascinating by the Lytro camera–a camera that let’s you change the focus after you’ve taken the photo–this DSLR hack provides a similar post-photo focus processing without the $400 price tag. Photography tinkers at The Chaos Collective came up with a clever way of mimicking the adjustable depth-of-field adjustment effect from the Lytro camera. The secret sauce in their technique is setting the camera to manual focus and capturing a short 2-3 second video clip while they rotate the focus through the entire focal range. From there, they use a simple applet to separate out each frame of the video. Check out the interactive demo below: Anywhere you click in the photo shifts the focus to that point, just like the post processing in the Lytro camera. It’s a different approach to the problem but it yields roughly the same output. Hit up the link below for the full run down on their technique and how you can get started using it with your own video-enabled DLSR. Camera HACK: DOF-Changeable Photos with an SLR [via Hack A Day] Secure Yourself by Using Two-Step Verification on These 16 Web Services How to Fix a Stuck Pixel on an LCD Monitor How to Factory Reset Your Android Phone or Tablet When It Won’t Boot

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• Simple (and fast) dices physics

  - by Markus von Broady

  I'm programming a throw of 5 dices in Actionscript 3 + AwayPhysics (BulletPhysics port). I had a lot of fun tweaking frictions, masses etc. and in the end I found best results with more physics ticks per frame. Currently I use 10 ticks per frame (1/60 s) and it's OK, though I see a difference in plus for 20 ticks. Even though it's only 5 cubes (dices) in a box (or a floor with 3 walls really) I can't simulate 20 ticks in a frame and keep FPS at 60 on a medium-aged PC. That's why I decided to precompute frames for animation, finishing it in around 1700 ticks in 2 seconds. The flash player is freezed for these 2 seconds, and I'm afraid that this result will be more of a 5 seconds or even more, if I'll simulate multi-threading and compute frames in background of some other heavy processes and CPU drawing (dices is only a part of this game). Because I want both players to see dices roll in same way, I can't compute physics when having free resources, and build a buffer for at least one throw of each type (where type is number of dices thrown). I'm afraid players will see a "preparing dices........." message too often and for too long. I think the only solution to this problem is replacing PhysicsEngine with something simpler, or creating own physicsEngine. Do You have any formulas for cube-cube and cube-wall collision detection, and for calculating how their angular and linear velocities should change after a collision occurs?

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• 2?????????????(Fusion Middleware??)

  - by rika.tokumichi

  ??????????OTN????????? ?????????????????????????????????????????????? ??????????????????????????????????????????????? ??????Fusion Middleware??2?1?~2?28?????????????! ??????????? 1?:Oracle WebLogic Server 11g?Download? 2?:Oracle JDeveloper 11g?Download? 3?:Oracle JRockit Mission Control 3.1.2?Download? 4?:Oracle SOA Suite 11g ?Download? 5?:Oracle WebLogic Server 10g?Download? (????2?1?~2?28?) 4??Oracle SOA Suite???????????!???????SOA??????????????????????????? OTN?????????? >2010?2??????????? SOA???????(?????????????)???PDF????Flash???????????????????? ???????: Oracle SOA Suite 11g ???? ??SOA????!!BPEL???? ??SOA??!! WEB???????? OTN ??? >SOA/BPM????? - ???????? - Web????????????SOA/BPM???????????????????????????????????????????????????????????????????????????????????????????????SOA/BPM???????????????? ???????? >Architect Center: SOA ??? ???????Java EE?SOA???????????????????????????? ????????????????????????????SOA?????????????????? ??????????SOA Suite 11g?SOA????????????????? >Java??????SOA (Oracle SOA Suite 11g R1 PS2???) >Oracle SOA Suite 11g R1 Patch Set 2 (11.1.1.3.0) ??? >(1) Oracle SOA Suite 11g R1?????????????????????? >>????SOA??????? ??????????????????????!

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• how to store and retrieve/generate UI?

  - by thindery

  I'm working on a site that will have hundreds, and eventually thousands, of paper products that users can customize online. Here is a very simple sample of what needs to be generated based on the product id: demo. This is a very simple version. I plan on replacing text fields with prettier elements(like the slider on tab 3). I imagine most of this can be achieved via jquery. So basically a product will have multiple pages(tabs), with multiple form elements on each page. I've never done a large scale project like this before and I am looking for ideas/suggestions for how I can store the info for each product that needs to be generated to create the UI. For each product, I need to store how many pages there are, what form fields are on each page, and the order of the fields on the page. As well as setting default text values and form options(font size, etc). Then with all this info stored somewhere, I can have the web app retrieve it and generate the UI with text fields, sliders, and other jquery-ish form enhancements, for that particular product. Can anyone toss out some suggestions, links, blogs, tutorials? I'm not really sure where to begin with this or what I need to start to investigate. I have experience with php, mysql, javascript, jquery, html, css, and that is really about it. I'm open to learning(and would enjoy exploring) new frameworks, programming, etc that will really get this web app working correctly, efficiently, and effectively. Maybe I should start looking into a mvc framework? like i said, i really have no idea what is the best approach. please let me know your suggestions!

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• How to quickly search through a very large list of strings / records on a database

  - by Giorgio

  I have the following problem: I have a database containing more than 2 million records. Each record has a string field X and I want to display a list of records for which field X contains a certain string. Each record is about 500 bytes in size. To make it more concrete: in the GUI of my application I have a text field where I can enter a string. Above the text field I have a table displaying the (first N, e.g. 100) records that match the string in the text field. When I type or delete one character in the text field, the table content must be updated on the fly. I wonder if there is an efficient way of doing this using appropriate index structures and / or caching. As explained above, I only want to display the first N items that match the query. Therefore, for N small enough, it should not be a big issue loading the matching items from the database. Besides, caching items in main memory can make retrieval faster. I think the main problem is how to find the matching items quickly, given the pattern string. Can I rely on some DBMS facilities, or do I have to build some in-memory index myself? Any ideas? EDIT I have run a first experiment. I have split the records into different text files (at most 200 records per file) and put the files in different directories (I used the content of one data field to determine the directory tree). I end up with about 50000 files in about 40000 directories. I have then run Lucene to index the files. Searching for a string with the Lucene demo program is pretty fast. Splitting and indexing took a few minutes: this is totally acceptable for me because it is a static data set that I want to query. The next step is to integrate Lucene in the main program and use the hits returned by Lucene to load the relevant records into main memory.

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• ADF Hands on Training &ndash; Prerequisites for 22nd March 2011

  - by Grant Ronald

  For those of you coming to the ADF Hands on training on the 22nd March in London, there was a link to the prerequisites.  Unfortunately, in a reshuffle of content on OTN, this page was removed.  So, over the next day or so I’m hoping to the pull together the relevant information into this blog post.  So keep checking back! Firstly, you need to being your laptop with you to do the hands on exercises.  No laptop, no hands on. Recommended 2GB RAM running Microsoft Windows XP SP2, 2003 Server SP2, Vista (32 bit only), Windows 7 or Linux or Mac 2GHz Processor (less will be acceptable but slower) Mozilla Firefox 2.0 or higher, Internet Explorer 7 or higher, Safari 3.0 and higher, Google Chrome 1.0 or higher Winzip or other extracting software Adobe Acrobat reader Flash (if you want to see dynamic graphs in your application) As for software, you will need have installed JDeveloper 11g.  The hands on instructions are based on 11.1.1.2 (or is it 11.1.1.3)! anyway, either of those or 11.1.1.4 would be required. You also need an Oracle database on your machine and access to the HR schema (which should be unlocked).  Don’t expect to have access to a network and VPN to a database. A simple test, unplug your laptop from your corporate network, run up JDev  and select File –> New –> Database connection and make sure you can connect to HR database and see the Emp/Dept etc tables.  If you can do that, you should be good to go. I would strongly recommend ensuring you have this in place before you arrive on Tuesday. Look forward to seeing you there.

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• ADF Logging In Deployed Apps

  - by Duncan Mills

  Harking back to my series on using the ADF logger and the related  ADF Insider Video, I've had a couple of queries this week about using the logger from Enterprise Manager (EM). I've alluded in those previous materials to how EM can be used but it's evident that folks need a little help.  So in this article, I'll quickly look at how you can switch logging on from the EM console for an application and how you can view the output.  Before we start I'm assuming that you have EM up and running, in my case I have a small test install of Fusion Middleware Patchset 5 with an ADF application deployed to a managed server. Step 1 - Select your Application In the EM navigator select the app you're interested in: At this point you can actually bring up the context ( right mouse click) menu to jump to the logging, but let's do it another way.  Step 2 - Open the Application Deployment Menu At the top of the screen, underneath the application name, you'll find a drop down menu which will take you to the options to view log messages and configure logging, thus: Step 3 - Set your Logging Levels  Just like the log configuration within JDeveloper, we can set up transient or permanent (not recommended!) loggers here. In this case I've filtered the class list down to just oracle.demo, and set the log level to config. You can now go away and do stuff in the app to generate log entries. Step 4 - View the Output  Again from the Application Deployment menu we can jump to the log viewer screen and, as I have here, start to filter down the logging output to the stuff you're interested in.  In this case I've filtered by module name. You'll notice here that you can again look at related log messages. Importantly, you'll also see the name of the log file that holds this message, so it you'd rather analyse the log in more detail offline, through the ODL log analyser in JDeveloper, then you can see which log to download.

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• A Myriad of Options

  - by Mark Hesse

  I am currently working with a customer that is close to outgrowing their Exadata X2-2 half rack in both compute and storage capacity.  The platform is used for one of their larger data warehouse applications and the move to Exadata almost two years ago has been a resounding success, forcing them to grow the platform sooner than anticipated. At a recent planning meeting, we started looking at the options for expansion and have developed five alternatives, all of which meet or exceed their growth requirements, yet have different pros and cons in terms of the impact to their production and test environments. The options include an in-rack upgrade to a full rack of Exadata using the recently released X3-2 platform (an option that even applies to an older V2 rack), multi-rack cabling the existing X2-2 to another full rack or half rack X2-2 (and utilizing both compute and storage capacity in the other rack), or simply adding a new X3-2 half rack (and taking advantage of the added compute and flash performance in the X3-2). While the decision is yet to be made, it had me thinking that one of the benefits of Exadata over a traditional database deployment is that when the time comes to expand the platform, there are a myriad of options.

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• Can you recommend a game server for a facebook board game?

  - by Yekmer Simsek

  I am seeking a game server that will scale well. All commercial and/or free software alternatives are welcome. Game will be a boardgame that is similar to poker. Some technical details are listed below. There will be a table which consists of 4 people, to send them message I need a channel manager. A table will be ready to play for at least 5 minutes. There should be a reliable channel manager. People will wait for some time(i.e.) and if they are not playing they will be kicked by server, so there will be a reliable timed task queue to execute some tasks. It should be quick enough to response and show the changes to all 4 people on that table simultaneously.To achive this server should have a powerfull I/O library. I think to use inmemory to have quick response times, but it comes with scalability problems. And some variables should be thread safe so a variable should be thread safe between multiple nodes. Flash(AS3) and Unity (.Net 2.0 C# mono) client API's should be available for socket connection. PS: I am using Reddwarf server, it lacks of documentation and multiple node.

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• Grub2 cannot detect Windows 8

  - by MetaChrome

  At installation it did not detect Windows. I mounted the Windows partition and have run os-prober with no results returning. I am able to boot Windows or Ubuntu by specifying the partition in UEFI boot order. The bios does not appear to allow booting with legacy. SecureBoot is on. This is with Ubuntu 12.04 LTS on a Inspiron 15. Here is the gdisk: 1 2048 1026047 500.0 MiB EF00 EFI system partition 2 1026048 1107967 40.0 MiB FFFF Basic data partition 3 1107968 1370111 128.0 MiB 0C01 Microsoft reserved part 4 1370112 2394111 500.0 MiB 2700 Basic data partition 5 2394112 544743423 258.6 GiB 0700 Basic data partition 6 606183424 625140399 9.0 GiB 2700 Microsoft recovery part 7 544743424 545230847 238.0 MiB 0700 (/boot) 8 545230848 556949503 5.6 GiB 8200 (swap) 9 556949504 606181375 23.5 GiB 0700 (/) When installing ubuntu, I believe I specified that the bootloader be installed on /dev/sda. I added the following to /etc/grub.d/40_custom but booting ubuntu did not offer a grub menu: menuentry "Windows 8" { set root = "(hd0,4)" chainloader +1 } When booting I think I see "EFI Disk error" flash very quickly before Ubuntu starts booting.

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• Making HTML5 videos stored on AWS S3 **difficult** to download (because I cant make it impossible)

  - by Jimmery

  I am building a website that hosts video's stored on AWS's S3 service. The videos are played thru a HTML5 player we have built. Ive just been asked to make sure "nobody can steal our video's". Now I know that if you really don't want something stolen, don't put it up on the internet. However I just need to secure these videos as good as possible, the videos need to at the very least resist someone going thru the source code and trying to download them manually. One option available to me is to completely rebuild the video player in flash. This is not ideal, for several reasons, notably because I would also then have to build an App for mobile devices to be able to view this site. So I am looking for other options. I have heard about using a token to make the file available only during certain times. I have heard of using a separate file to serve the videos that sits between the HTML5 page and the video file. I am also having a look at IAM, the Secure AWS Access Control, in the hopes AWS can solve this problem for me. Can anyone here recommend any of these options? Or perhaps suggest other options available to me? Any help would be greatly appreciated.

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• Data recovery on a Samsung SV1203N HDD

  - by Jim Conace

  Let me start by saying that I am a beginner in Ubuntu, but pretty knowledgeable with Windows. I am having a strange problem trying to recover data from a Samsung SV1203N HDD (120 GiB). I have tried numerous things in both Windows 7 and Ubuntu 12.04 LTS (on a flash drive, an external HDD and a Live CD). This drive has some very important data on it and I am praying some of you Ubuntu geeks can help me get it back. Here's my problem. The HDD is clicking while I am booting, but it stops when I get into Ubuntu or Windows. It refuses to be detected in the bios, so I cant perform any tests on it. I have tried numerous things in both Windows (repair CD, Jumpers, etc.) and Ubuntu (Boot-Fix, GParted, Testdisk, Photorec, forcing a mount, etc.). But it all seems to lead me back to the fact that the drive is not being recognized in the BIOS. I've even tried chilling the drive in the fridge, which worked well for another drive I work on, and I recovered all of the data in Ubuntu flawlessly. I am assuming that since the drive stops clicking when I get into the OS' that there is hope for recovery. I am going to try an IDE/SATA to USB cable, and replacing the Logic Board, but I want to exhaust all other possibilities before I do that. Any help would be greatly appreciated Bye

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• Browser Item Caching and URLs

  - by Damon

  Ultimately you want the browser to cache things like Flash components, Silverlight XAP files, and images to avoid users having to download them each time they hit a page.  But during development it's very useful to NOT have things cached so you are always looking at the most up-to-date file.  You can always turn off caching on your browser, but if you use your browser for daily browsing then its not the greatest option.  To avoid caching we would always just slap a randomly generated GUID to the back of the URL of any items we didn't want to cache (e.g. http://someserver.com/images/image.png?15f073f5-45fc-47b2-993b-fbaa781b926d).  It worked well, but you had to remember to remove the random GUID when it went to production. However, on a GimmalSoft project we recently implemented someone showed me a better way that didn't need to be removed from production code - just slap the last modified date of the file on the end of the URL (or something generated from the modification date).  This was kind of genius approach because it gives you the best of both world.  If you modify the file, the browser goes out and gets the newest version.  If you don't modify the file, it has the cached copy.  Very helpful!  The only down side is that you do have to read the modification date from the file, which does technically take some time.

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• Browser Item Caching and URLs

  - by Damon Armstrong

  Ultimately you want the browser to cache things like Flash components, Silverlight XAP files, and images to avoid users having to download them each time they hit a page.  But during development it’s very useful to NOT have things cached so you are always looking at the most up-to-date file.  You can always turn off caching on your browser, but if you use your browser for daily browsing then its not the greatest option.  To avoid caching we would always just slap a randomly generated GUID to the back of the URL of any items we didn’t want to cache (e.g. http://someserver.com/images/image.png?15f073f5-45fc-47b2-993b-fbaa781b926d).  It worked well, but you had to remember to remove the random GUID when it went to production. However, on a GimmalSoft project we recently implemented someone showed me a better way that didn’t need to be removed from production code – just slap the last modified date of the file on the end of the URL (or something generated from the modification date).  This was kind of genius approach because it gives you the best of both world.  If you modify the file, the browser goes out and gets the newest version.  If you don’t modify the file, it has the cached copy.  Very helpful!  The only down side is that you do have to read the modification date from the file, which does technically take some time.

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• Which is the way to pass parameters in a drawableGameComponent in XNA 4.0?

  - by cad

  I have a small demo and I want to create a class that draws messages in screen like fps rate. I am reading a XNA book and they comment about GameComponents. I have created a class that inherits DrawableGameComponent public class ScreenMessagesComponent : Microsoft.Xna.Framework.DrawableGameComponent I override some methods like Initialize or LoadContent. But when I want to override draw I have a problem, I would like to pass some parameters to it. Overrided method does not allow me to pass parameters. public override void Draw(GameTime gameTime) { StringBuilder buffer = new StringBuilder(); buffer.AppendFormat("FPS: {0}\n", framesPerSecond); // Where get framesPerSecond from??? spriteBatch.DrawString(spriteFont, buffer.ToString(), fontPos, Color.Yellow); base.Draw(gameTime); } If I create a method with parameters, then I cannot override it and will not be automatically called: public void Draw(SpriteBatch spriteBatch, int framesPerSecond) { StringBuilder buffer = new StringBuilder(); buffer.AppendFormat("FPS: {0}\n", framesPerSecond); spriteBatch.DrawString(spriteFont, buffer.ToString(), fontPos, Color.Yellow); base.Draw(gameTime); } So my questions are: Is there a mechanism to pass parameter to a drawableGameComponent? What is the best practice? In general is a good practice to use GameComponents?

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• Trouble installing from disk

  - by SuperNatural

  I'm writing this in desperation, Windows is slowly killing me and i need to change my home pc os to Ubuntu 11.04 as soon as possible. I created a USB flash drive to install ubuntu, twice, and both times they failed to begin install on restart of my pc. i read on another forum that you might have to change some boot sequence in BIOS but when pressing F2 to enter it didnt work. After a lot of cursing, I made myself an UBUNTU install cd and booted. To my excitement, it now displayed... try ubuntu and install ubuntu. i clicked install ubuntu which lead me to the preparing to install ubuntu display, i checked download updates while installing and clicked forward. The very next display is ' allocate drive space ' i assume there are meant to be options of drives provided but mine is just a blank box and underneath all the options to create a new partition table, add, change, delete and revert are all greyed out. There is a drop down menu labelled 'device for boot loader installlation' but the only option is /dev/sda. when i click install, a no root file system error comes up telling me to please correct from the partitioning menu. I am extremely frustrated. please!! can anyone help me...

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• What is the best practice for reading a large number of custom settings from a text file?

  - by jawilmont

  So I have been looking through some code I wrote a few years ago for an economic simulation program. Each simulation has a large number of settings that can be saved to a file and later loaded back into the program to re-run the same/similar simulation. Some of the settings are optional or depend on what is being simulated. The code to read back the parameters is basically one very large switch statement (with a few nested switch statements). I was wondering if there is a better way to handle this situation. One line of the settings file might look like this: #RA:1,MT:DiscriminatoryPriceKDoubleAuction,OF:Demo Output.csv,QM:100,NT:5000,KP:0.5 //continues... And some of the code that would read that line: switch( Character.toUpperCase( s.charAt(0) ) ) { case 'R': randSeed = Integer.valueOf( s.substring(3).trim() ); break; case 'M': marketType = s.substring(3).trim(); System.err.println("MarketType: " + marketType); break; case 'O': outputFileName = s.substring(3).trim() ; break; case 'Q': quantityOfMarkets = Integer.valueOf( s.substring(3).trim() ); break; case 'N': maxTradesPerRound = Integer.valueOf( s.substring(3).trim() ); break; case 'K': kParameter = Float.valueOf( s.substring(3).trim() ); break; // continues... }

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• Attempting to install ubuntu 11.10

  - by Orin

  I installed version 9 sometime ago and since have forgotten the process for partitioning, or the layout is different. I have 5 partitions but only have windows xp installed on the pc in question with that being the one of those 5 partitions which is ntfs 34444 mb its - a 40gig hard-drive. My first question is... is there a way to get a screen shot of the partitioner when I am running the demo session straight from disc... these 5 partitions are fragmenting the other 4ish gig needed to install.. I get an error message which says go back and make sure 1 partition has at least 2.5 gig or so. But I have no idea what I am supposed to set these remaining 4 partitions to in order to proceed.. I have read up on install guides and understand that one must be "/" root and another as swap... but to no avail thus far have the correct combo. A few screen shots will no doubt help you guys answer as I'm baffled as to what specific details to give as each one has various settings on inspection, and I don't really feel like writing it all down manually then posting specs for each one

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• What's the simplest way to provide a portable, locally running webservice server application?

  - by derFunk

  We have a bigger website running that offers a JsonRpc web service. For offline demonstration purposes I want to realize a portable, locally running webserver with a minimalistic feature replication of the live webservice, and bundle this together with Html files which do Ajax requests to it. This local server executable should have as little dependencies as possible. It's gonna be run and presented by non-devs on non-dev Windows machines, so I would prefer having a simple executable plus the service code - whereas language doesn't matter as long as it is .NET, PHP or Java. I'll need a small database behind which probably will be Sqlite. It's important to say that for some reasons we cannot use the original web service code, but we have to rewrite it new for the local demo server, this is why I want to put minimal effort in the local server tech. An installer for distribution is not mandatory, it's okay to have a zip file with an executable in it which starts up the local webserver. What would you recommend realizing these requirements? I've done some research already, but would love to here your opinions and get some pointers!

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• Battery life low on notebook using ubuntu 11.10 vs. windows 7

  - by les

  Im using a brand new Dell XPS notebook (bought mar 2012) which has 4.5 hrs battery life using a 6 cell battery-when i use windows 7. The machine uses an Intel core 17 2670qm processor, and a 64 bit operating system. I downloaded Ubuntu 11.10 and installed it on a USB drive, which is how i use it. I still have Windows 7 on the machine. When the machine is booting up I hit F12, and run Ubuntu from the flash drive instead of the machine booting Windows, as it normally would. On the Ubuntu menu, on the top right area, there is a battery menu, which shows how long to charge battery, or how much life left etc..with a fully charged battery the most Ubuntu will give me is 1.5 hrs. I've adjusted all power setting etc by clicking on the battery meter where i can make these adjustments, and have even turned down the brightness on the monitor. I've read through these questions here, and a user wrote to install Ubuntu 12(?)(the alpha version) when it's out this month(april), and this has better power management. Other forums (Ubuntu wiki) state that windows 7 controls power management effectively because it's configured to work with the hardware. I'd like to install Ubuntu and wipe windows but can't because of this issue. I need my notebook to go hours, not an hour and a bit. Can anybody recommend possibly a good software to use, that will work with the machines bios under Ubuntu? Another thought of mine, is- since I didn't yet wipe windows off my hard disk, is windows still possibly controlling the power mgmt aspect on the machine? I've thought of calling tech support at Dell and asking for help there, maybe Dell has something (a tweak?), I can download that'll work under Ubuntu. Looking forward to any help/suggestions i can get here, i'm really stuck on this..

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