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• iPhone OpenGL ES: How do I use gravity vector to correctly transform scene for augmented reality

  - by gpdawson

  I'm trying figure out how to get an OpenGL specified object to be displayed correctly according to the device orientation (ie. according to the gravity vector from the accelerometer, and heading from compass). The GLGravity sample project has an example which is almost like this (despite ignoring heading), but it has some glitches. For example, the teapot jumps 180deg as the device viewing angle crosses the horizon, and it also rotates spuriously if you tilt the device from portrait into landscape. This is fine for the context of this app, as it just shows off an object and it doesn't matter that it does these things. But it means that the code just doesn't work when you attempt to emulate real life viewing of an OpenGL object according to the device's orientation. What happens is that it almost works, but the heading rotation you apply from the compass gets "corrupted" by the spurious additional rotations seen in the GLGravity example project. Can anyone provide sample code that shows how to adjust correctly for the device orientation (ie. gravity vector), or to fix the GLGravity example so that it doesn't include spurious heading changes? //Clear matrix to be used to rotate from the current referential to one based on the gravity vector bzero(matrix, sizeof(matrix)); matrix[3][3] = 1.0; //Setup first matrix column as gravity vector matrix[0][0] = accel[0] / length; matrix[0][1] = accel[1] / length; matrix[0][2] = accel[2] / length; //Setup second matrix column as an arbitrary vector in the plane perpendicular to the gravity vector {Gx, Gy, Gz} defined by by the equation "Gx * x + Gy * y + Gz * z = 0" in which we arbitrarily set x=0 and y=1 matrix[1][0] = 0.0; matrix[1][1] = 1.0; matrix[1][2] = -accel[1] / accel[2]; length = sqrtf(matrix[1][0] * matrix[1][0] + matrix[1][1] * matrix[1][1] + matrix[1][2] * matrix[1][2]); matrix[1][0] /= length; matrix[1][1] /= length; matrix[1][2] /= length; //Setup third matrix column as the cross product of the first two matrix[2][0] = matrix[0][1] * matrix[1][2] - matrix[0][2] * matrix[1][1]; matrix[2][1] = matrix[1][0] * matrix[0][2] - matrix[1][2] * matrix[0][0]; matrix[2][2] = matrix[0][0] * matrix[1][1] - matrix[0][1] * matrix[1][0]; //Finally load matrix glMultMatrixf((GLfloat*)matrix);

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• ServiceLocator not initialized in Tests project

  - by Carl Bussema

  When attempting to write a test related to my new Tasks (MVC3, S#arp 2.0), I get this error when I try to run the test: MyProject.Tests.MyProject.Tasks.CategoryTasksTests.CanConfirmDeleteReadiness: SetUp : System.NullReferenceException : ServiceLocator has not been initialized; I was trying to retrieve SharpArch.NHibernate.ISessionFactoryKeyProvider ---- System.NullReferenceException : Object reference not set to an instance of an object. at SharpArch.Domain.SafeServiceLocator1.GetService() at SharpArch.NHibernate.SessionFactoryKeyHelper.GetKeyFrom(Object anObject) at SharpArch.NHibernate.NHibernateRepositoryWithTypedId2.get_Session() at SharpArch.NHibernate.NHibernateRepositoryWithTypedId2.Save(T entity) at MyProject.Tests.MyProject.Tasks.CategoryTasksTests.Setup() in C:\code\MyProject\Solutions\MyProject.Tests\MyProject.Tasks\CategoryTasksTests.cs:line 36 --NullReferenceException at Microsoft.Practices.ServiceLocation.ServiceLocator.get_Current() at SharpArch.Domain.SafeServiceLocator1.GetService() Other tests which do not involve the new class (e.g., generate/confirm database mappings) run correctly. My ServiceLocatorInitializer is as follows public class ServiceLocatorInitializer { public static void Init() { IWindsorContainer container = new WindsorContainer(); container.Register( Component .For(typeof(DefaultSessionFactoryKeyProvider)) .ImplementedBy(typeof(DefaultSessionFactoryKeyProvider)) .Named("sessionFactoryKeyProvider")); container.Register( Component .For(typeof(IEntityDuplicateChecker)) .ImplementedBy(typeof(EntityDuplicateChecker)) .Named("entityDuplicateChecker")); ServiceLocator.SetLocatorProvider(() => new WindsorServiceLocator(container)); } }

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• Windows Azure Roles stuck in &lsquo;initializing&rsquo;, &rsquo;busy&rsquo;

  - by kaleidoscope

  Technorati Tags: windows azure,roles,stuck,initializing,busy,stopping,tinu If you have worked on Windows Azure you are bound to have faced this gnawing and dreaded issue – Your Web/Worker role goes from ‘initializing’ to ‘busy’ to ‘stopping’ but refuses to get ‘ready’. For those of us who have resorted to merciless desktop vandalism over this, there is still hope. In his post MSFT’s Toddy Mladenov summarizes few plausible reasons for this - 1. Missing runtime dependencies (DLLs) 2. Incorrect platform version of a DLL 3. Incorrect DiagnosticsConnectionString/DataConnectionString 4. Queues/Tables being read during initialization do not exist. 5. Certificate without exportable private key. 6. Returning from Run Method in Worker Role. For a more detailed and precise account visit his post: http://blog.toddysm.com/2010/01/windows-azure-deployment-stuck-in-initializing-busy-stopping-why.html - Tinu, O

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• Enable Automatic Code First Migrations On SQL Database in Azure Web Sites

  - by Steve Michelotti

  Now that Azure supports .NET Framework 4.5, you can use all the latest and greatest available features. A common scenario is to be able to use Entity Framework Code First Migrations with a SQL Database in Azure. Prior to Code First Migrations, Entity Framework provided database initializers. While convenient for demos and prototypes, database initializers weren’t useful for much beyond that because, if you delete and re-create your entire database when the schema changes, you lose all of your operational data. This is the void that Migrations are meant to fill. For example, if you add a column to your model, Migrations will alter the database to add the column rather than blowing away the entire database and re-creating it from scratch. Azure is becoming increasingly easier to use – especially with features like Azure Web Sites. Being able to use Entity Framework Migrations in Azure makes deployment easier than ever. In this blog post, I’ll walk through enabling Automatic Code First Migrations on Azure. I’ll use the Simple Membership provider for my example. First, we’ll create a new Azure Web site called “migrationstest” including creating a new SQL Database along with it:   Next we’ll go to the web site and download the publish profile:   In the meantime, we’ve created a new MVC 4 website in Visual Studio 2012 using the “Internet Application” template. This template is automatically configured to use the Simple Membership provider. We’ll do our initial Publish to Azure by right-clicking our project and selecting “Publish…”. From the “Publish Web” dialog, we’ll import the publish profile that we downloaded in the previous step:   Once the site is published, we’ll just click the “Register” link from the default site. Since the AccountController is decorated with the [InitializeSimpleMembership] attribute, the initializer will be called and the initial database is created.   We can verify this by connecting to our SQL Database on Azure with SQL Management Studio (after making sure that our local IP address is added to the list of Allowed IP Addresses in Azure): One interesting note is that these tables got created with the default Entity Framework initializer – which is to create the database if it doesn’t already exist. However, our database did already exist! This is because there is a new feature of Entity Framework 5 where Code First will add tables to an existing database as long as the target database doesn’t contain any of the tables from the model. At this point, it’s time to enable Migrations. We’ll open the Package Manger Console and execute the command: PM> Enable-Migrations -EnableAutomaticMigrations This will enable automatic migrations for our project. Because we used the "-EnableAutomaticMigrations” switch, it will create our Configuration class with a constructor that sets the AutomaticMigrationsEnabled property set to true: 1: public Configuration() 2: { 3: AutomaticMigrationsEnabled = true; 4: } We’ll now add our initial migration: PM> Add-Migration Initial This will create a migration class call “Initial” that contains the entire model. But we need to remove all of this code because our database already exists so we are just left with empty Up() and Down() methods. 1: public partial class Initial : DbMigration 2: { 3: public override void Up() 4: { 5: } 6: 7: public override void Down() 8: { 9: } 10: } If we don’t remove this code, we’ll get an exception the first time we attempt to run migrations that tells us: “There is already an object named 'UserProfile' in the database”. This blog post by Julie Lerman fully describes this scenario (i.e., enabling migrations on an existing database). Our next step is to add the Entity Framework initializer that will automatically use Migrations to update the database to the latest version. We will add these 2 lines of code to the Application_Start of the Global.asax: 1: Database.SetInitializer(new MigrateDatabaseToLatestVersion<UsersContext, Configuration>()); 2: new UsersContext().Database.Initialize(false); Note the Initialize() call will force the initializer to run if it has not been run before. At this point, we can publish again to make sure everything is still working as we are expecting. This time we’re going to specify in our publish profile that Code First Migrations should be executed:   Once we have re-published we can once again navigate to the Register page. At this point the database has not been changed but Migrations is now enabled on our SQL Database in Azure. We can now customize our model. Let’s add 2 new properties to the UserProfile class – Email and DateOfBirth: 1: [Table("UserProfile")] 2: public class UserProfile 3: { 4: [Key] 5: [DatabaseGeneratedAttribute(DatabaseGeneratedOption.Identity)] 6: public int UserId { get; set; } 7: public string UserName { get; set; } 8: public string Email { get; set; } 9: public DateTime DateOfBirth { get; set; } 10: } At this point all we need to do is simply re-publish. We’ll once again navigate to the Registration page and, because we had Automatic Migrations enabled, the database has been altered (*not* recreated) to add our 2 new columns. We can verify this by once again looking at SQL Management Studio:   Automatic Migrations provide a quick and easy way to keep your database in sync with your model without the worry of having to re-create your entire database and lose data. With Azure Web Sites you can set up automatic deployment with Git or TFS and automate the entire process to make it dead simple.

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• Unable to access MySQL from MyPHPAdmin after setting root password in EasyPHP{WAMP}

  - by Codex

  Am a new starter with WAMP and trying to play around my way using the EasyPHP setup. After successful setup on intial launch of MySQL, the page prompted me to set up ROOT password for security reasons. On setting the password, am no longer able to access MySQL. The error is : Error MySQL said: Documentation 1045 - Access denied for user 'root'@'localhost' (using password: NO) Looked up on the net and tried the following options in the config.inc.php from the phpmyadmin foler: 1] Set the authetication to "http" so that it prompts to enter the username and password /* Authentication type */ $cfg['Servers'][$i]['auth_type'] = 'http'; 2] Set up the correct password in the config file $cfg['Servers'][$i]['password'] = 'myPwd'; None of them worked. Can anyone suggest a workaround to access MySQL? Am not fussed about not being able to use the root account but would like to CRUD on the database using other username. Thanks in advance.

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• Installing Visual Studio Team Foundation Server Service Pack 1

  - by Martin Hinshelwood

  As has become customary when the product team releases a new patch, SP or version I like to document the install. Although I had no errors on my main computer, my netbook did have problems. Although I am not ready to call it a Service Pack problem just yet! Update 2011-03-10 – Running the Team Foundation Server 2010 Service Pack 1 install a second time worked As per Brian's post I am installing the Team Foundation Server Service Pack first and indeed as this is a single server local deployment I need to install both. If I only install one it will leave the other product broken. This however does not affect you if you are running Visual Studio and Team Foundation Server on separate computers as is normal in a production deployment. Main workhorse I will be installing the service pack first on my main computer as I want to actually use it here. Figure: My main workhorse I will also be installing this on my netbook which is obviously of significantly lower spec, but I will do that one after. Although, as always I had my fingers crossed, I was not really worried. Figure: KB2182621 Compared to Visual Studio there are not really a lot of components to update. Figure: TFS 2010 and SQL 2008 are the main things to update There is no “web” installer for the Team Foundation Server 2010 Service Pack, but that is ok as most people will be installing it on a production server and will want to have everything local. I would have liked a Web installer, but the added complexity for the product team is not work the capability for a 500mb patch. Figure: There is currently no way to roll SP1 and RTM together Figure: No problems with the file verification, phew Figure: Although the install took a while, it progressed smoothly   Figure: I always like a success screen Well, as far as the install is concerned everything is OK, but what about TFS? Can I still connect and can I still administer it. Figure: Service Pack 1 is reflected correctly in the Administration Console I am confident that there are no major problems with TFS on my system and that it has been updated to SP1. I can do all of the things that I used before with ease, and with the new features detailed by Brian I think I will be happy. Netbook The great god Murphy has stuck, and my poor wee laptop spat the Team Foundation Server 2010 Service Pack 1 out so fast it hit me on the back of the head. That will teach me for not looking… Figure: “Installation did not succeed” I am pretty sure should not be all caps! On examining the file I found that everything worked, except the actual Team Foundation Server 2010 serving step. Action: System Requirement Checks... Action complete Action: Downloading and/or Verifying Items c:\757fe6efe9f065130d4838081911\VS10-KB2182621.msp: Verifying signature for VS10-KB2182621.msp c:\757fe6efe9f065130d4838081911\VS10-KB2182621.msp Signature verified successfully for VS10-KB2182621.msp c:\757fe6efe9f065130d4838081911\DACFramework_enu.msi: Verifying signature for DACFramework_enu.msi c:\757fe6efe9f065130d4838081911\DACFramework_enu.msi Signature verified successfully for DACFramework_enu.msi c:\757fe6efe9f065130d4838081911\DACProjectSystemSetup_enu.msi: Verifying signature for DACProjectSystemSetup_enu.msi Exists: evaluating Exists evaluated to false c:\757fe6efe9f065130d4838081911\DACProjectSystemSetup_enu.msi Signature verified successfully for DACProjectSystemSetup_enu.msi c:\757fe6efe9f065130d4838081911\TSqlLanguageService_enu.msi: Verifying signature for TSqlLanguageService_enu.msi c:\757fe6efe9f065130d4838081911\TSqlLanguageService_enu.msi Signature verified successfully for TSqlLanguageService_enu.msi c:\757fe6efe9f065130d4838081911\SharedManagementObjects_x86_enu.msi: Verifying signature for SharedManagementObjects_x86_enu.msi c:\757fe6efe9f065130d4838081911\SharedManagementObjects_x86_enu.msi Signature verified successfully for SharedManagementObjects_x86_enu.msi c:\757fe6efe9f065130d4838081911\SharedManagementObjects_amd64_enu.msi: Verifying signature for SharedManagementObjects_amd64_enu.msi c:\757fe6efe9f065130d4838081911\SharedManagementObjects_amd64_enu.msi Signature verified successfully for SharedManagementObjects_amd64_enu.msi c:\757fe6efe9f065130d4838081911\SQLSysClrTypes_x86_enu.msi: Verifying signature for SQLSysClrTypes_x86_enu.msi c:\757fe6efe9f065130d4838081911\SQLSysClrTypes_x86_enu.msi Signature verified successfully for SQLSysClrTypes_x86_enu.msi c:\757fe6efe9f065130d4838081911\SQLSysClrTypes_amd64_enu.msi: Verifying signature for SQLSysClrTypes_amd64_enu.msi c:\757fe6efe9f065130d4838081911\SQLSysClrTypes_amd64_enu.msi Signature verified successfully for SQLSysClrTypes_amd64_enu.msi c:\757fe6efe9f065130d4838081911\vcruntime\Vc_runtime_x86.cab: Verifying signature for vcruntime\Vc_runtime_x86.cab c:\757fe6efe9f065130d4838081911\vcruntime\Vc_runtime_x86.cab Signature verified successfully for vcruntime\Vc_runtime_x86.cab c:\757fe6efe9f065130d4838081911\vcruntime\Vc_runtime_x86.msi: Verifying signature for vcruntime\Vc_runtime_x86.msi c:\757fe6efe9f065130d4838081911\vcruntime\Vc_runtime_x86.msi Signature verified successfully for vcruntime\Vc_runtime_x86.msi c:\757fe6efe9f065130d4838081911\SetupUtility.exe: Verifying signature for SetupUtility.exe c:\757fe6efe9f065130d4838081911\SetupUtility.exe Signature verified successfully for SetupUtility.exe c:\757fe6efe9f065130d4838081911\vcruntime\Vc_runtime_x64.cab: Verifying signature for vcruntime\Vc_runtime_x64.cab c:\757fe6efe9f065130d4838081911\vcruntime\Vc_runtime_x64.cab Signature verified successfully for vcruntime\Vc_runtime_x64.cab c:\757fe6efe9f065130d4838081911\vcruntime\Vc_runtime_x64.msi: Verifying signature for vcruntime\Vc_runtime_x64.msi c:\757fe6efe9f065130d4838081911\vcruntime\Vc_runtime_x64.msi Signature verified successfully for vcruntime\Vc_runtime_x64.msi c:\757fe6efe9f065130d4838081911\NDP40-KB2468871.exe: Verifying signature for NDP40-KB2468871.exe c:\757fe6efe9f065130d4838081911\NDP40-KB2468871.exe Signature verified successfully for NDP40-KB2468871.exe Action complete Action: Performing actions on all Items Entering Function: BaseMspInstallerT >::PerformAction Action: Performing Install on MSP: c:\757fe6efe9f065130d4838081911\VS10-KB2182621.msp targetting Product: Microsoft Team Foundation Server 2010 - ENU Returning IDOK. INSTALLMESSAGE_ERROR [Error 1935.An error occurred during the installation of assembly 'Microsoft.TeamFoundation.WebAccess.WorkItemTracking,version="10.0.0.0",publicKeyToken="b03f5f7f11d50a3a",processorArchitecture="MSIL",fileVersion="10.0.40219.1",culture="neutral"'. Please refer to Help and Support for more information. HRESULT: 0x80070005. ] Returning IDOK. INSTALLMESSAGE_ERROR [Error 1712.One or more of the files required to restore your computer to its previous state could not be found. Restoration will not be possible.] Patch (c:\757fe6efe9f065130d4838081911\VS10-KB2182621.msp) Install failed on product (Microsoft Team Foundation Server 2010 - ENU). Msi Log: MSI returned 0x643 Entering Function: MspInstallerT >::Rollback Action Rollback changes PerformMsiOperation returned 0x643 PerformMsiOperation returned 0x643 OnFailureBehavior for this item is to Rollback. Action complete Final Result: Installation failed with error code: (0x80070643), "Fatal error during installation. " (Elapsed time: 0 00:14:09). Figure: Error log for Team Foundation Server 2010 install shows a failure As there is really no information in this log as to why the installation failed so I checked the event log on that box. Figure: There are hundreds of errors and it actually looks like there are more problems than a failed Service Pack I am going to just run it again and see if it was because the netbook was slow to catch on to the update. Hears hoping, but even if it fails, I would question the installation of Windows (PDC laptop original install) before I question the Service Pack Figure: Second run through was successful I don’t know if the laptop was just slow, or what… Did you get this error? If you did I will push this to the product team as a problem, but unless more people have this sort of error, I will just look to write this off as a corrupted install of Windows and reinstall.

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• Getting problem while capturing image through web cam in Java -OpenCV code.

  - by Chetan

  Hi.. I am developing Face detector using OpenCV library in java... I have written sample code for this,but it is giving Error while capturing image. can any one help please. Here is the code import java.awt.; import java.awt.event.; import java.awt.image.MemoryImageSource; import hypermedia.video.OpenCV; @SuppressWarnings("serial") public class FaceDetection extends Frame implements Runnable { ///Main method. public static void main(String[] args) { //System.out.println( "\nOpenCV face detection sample\n" ); new FaceDetection(); } // program execution frame rate (millisecond) final int FRAME_RATE = 1000/30; OpenCV cv = null; // OpenCV Object Thread t = null; // the sample thread // the input video stream image Image frame = null; // list of all face detected area Rectangle[] squares = new Rectangle[0]; //** Setup Frame and Object(s). FaceDetection() { super( "Face Detection" ); // OpenCV setup cv = new OpenCV(); //cv.capture(1, 1, 100); cv.capture( 320, 240 ); cv.cascade( OpenCV.CASCADE_FRONTALFACE_ALT ); // frame setup this.setBounds( 100, 100, cv.width, cv.height ); this.setBackground( Color.BLACK ); this.setVisible( true ); this.addKeyListener( new KeyAdapter() { public void keyReleased( KeyEvent e ) { if ( e.getKeyCode()==KeyEvent.VK_ESCAPE ) { // ESC : release OpenCV resources cv.dispose(); System.exit(0); } } } ); // start running program t = new Thread( this ); t.start(); } // Draw video frame and each detected faces area. public void paint( Graphics g ) { // draw image g.drawImage( frame, 0, 0, null ); // draw squares g.setColor( Color.RED ); for( Rectangle rect : squares ) g.drawRect( rect.x, rect.y, rect.width, rect.height ); } @SuppressWarnings("static-access") public void run() { while( t!=null && cv!=null ) { try { t.sleep( FRAME_RATE ); // grab image from video stream cv.read(); // create a new image from cv pixels data MemoryImageSource mis = new MemoryImageSource( cv.width, cv.height, cv.pixels(), 0, cv.width ); frame = createImage( mis ); // detect faces squares = cv.detect( 1.2f, 2, OpenCV.HAAR_DO_CANNY_PRUNING, 20, 20 ); // of course, repaint repaint(); } catch( InterruptedException e ) {;} } } } Error while starting capture : device 0

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• Using BPEL Performance Statistics to Diagnose Performance Bottlenecks

  - by fip

  Tuning performance of Oracle SOA 11G applications could be challenging. Because SOA is a platform for you to build composite applications that connect many applications and "services", when the overall performance is slow, the bottlenecks could be anywhere in the system: the applications/services that SOA connects to, the infrastructure database, or the SOA server itself.How to quickly identify the bottleneck becomes crucial in tuning the overall performance. Fortunately, the BPEL engine in Oracle SOA 11G (and 10G, for that matter) collects BPEL Engine Performance Statistics, which show the latencies of low level BPEL engine activities. The BPEL engine performance statistics can make it a bit easier for you to identify the performance bottleneck. Although the BPEL engine performance statistics are always available, the access to and interpretation of them are somewhat obscure in the early and current (PS5) 11G versions. This blog attempts to offer instructions that help you to enable, retrieve and interpret the performance statistics, before the future versions provides a more pleasant user experience. Overview of BPEL Engine Performance Statistics  SOA BPEL has a feature of collecting some performance statistics and store them in memory. One MBean attribute, StatLastN, configures the size of the memory buffer to store the statistics. This memory buffer is a "moving window", in a way that old statistics will be flushed out by the new if the amount of data exceeds the buffer size. Since the buffer size is limited by StatLastN, impacts of statistics collection on performance is minimal. By default StatLastN=-1, which means no collection of performance data. Once the statistics are collected in the memory buffer, they can be retrieved via another MBean oracle.as.soainfra.bpel:Location=[Server Name],name=BPELEngine,type=BPELEngine.> My friend in Oracle SOA development wrote this simple 'bpelstat' web app that looks up and retrieves the performance data from the MBean and displays it in a human readable form. It does not have beautiful UI but it is fairly useful. Although in Oracle SOA 11.1.1.5 onwards the same statistics can be viewed via a more elegant UI under "request break down" at EM -> SOA Infrastructure -> Service Engines -> BPEL -> Statistics, some unsophisticated minds like mine may still prefer the simplicity of the 'bpelstat' JSP. One thing that simple JSP does do well is that you can save the page and send it to someone to further analyze Follows are the instructions of how to install and invoke the BPEL statistic JSP. My friend in SOA Development will soon blog about interpreting the statistics. Stay tuned. Step1: Enable BPEL Engine Statistics for Each SOA Servers via Enterprise Manager First st you need to set the StatLastN to some number as a way to enable the collection of BPEL Engine Performance Statistics EM Console -> soa-infra(Server Name) -> SOA Infrastructure -> SOA Administration -> BPEL Properties Click on "More BPEL Configuration Properties" Click on attribute "StatLastN", set its value to some integer number. Typically you want to set it 1000 or more. Step 2: Download and Deploy bpelstat.war File to Admin Server, Note: the WAR file contains a JSP that does NOT have any security restriction. You do NOT want to keep in your production server for a long time as it is a security hazard. Deactivate the war once you are done. Download the bpelstat.war to your local PC At WebLogic Console, Go to Deployments -> Install Click on the "upload your file(s)" Click the "Browse" button to upload the deployment to Admin Server Accept the uploaded file as the path, click next Check the default option "Install this deployment as an application" Check "AdminServer" as the target server Finish the rest of the deployment with default settings Console -> Deployments Check the box next to "bpelstat" application Click on the "Start" button. It will change the state of the app from "prepared" to "active" Step 3: Invoke the BPEL Statistic Tool The BPELStat tool merely call the MBean of BPEL server and collects and display the in-memory performance statics. You usually want to do that after some peak loads. Go to http://<admin-server-host>:<admin-server-port>/bpelstat Enter the correct admin hostname, port, username and password Enter the SOA Server Name from which you want to collect the performance statistics. For example, SOA_MS1, etc. Click Submit Keep doing the same for all SOA servers. Step 3: Interpret the BPEL Engine Statistics You will see a few categories of BPEL Statistics from the JSP Page. First it starts with the overall latency of BPEL processes, grouped by synchronous and asynchronous processes. Then it provides the further break down of the measurements through the life time of a BPEL request, which is called the "request break down". 1. Overall latency of BPEL processes The top of the page shows that the elapse time of executing the synchronous process TestSyncBPELProcess from the composite TestComposite averages at about 1543.21ms, while the elapse time of executing the asynchronous process TestAsyncBPELProcess from the composite TestComposite2 averages at about 1765.43ms. The maximum and minimum latency were also shown. Synchronous process statistics <statistics>     <stats key="default/TestComposite!2.0.2-ScopedJMSOSB*soa_bfba2527-a9ba-41a7-95c5-87e49c32f4ff/TestSyncBPELProcess" min="1234" max="4567" average="1543.21" count="1000">     </stats> </statistics> Asynchronous process statistics <statistics>     <stats key="default/TestComposite2!2.0.2-ScopedJMSOSB*soa_bfba2527-a9ba-41a7-95c5-87e49c32f4ff/TestAsyncBPELProcess" min="2234" max="3234" average="1765.43" count="1000">     </stats> </statistics> 2. Request break down Under the overall latency categorized by synchronous and asynchronous processes is the "Request breakdown". Organized by statistic keys, the Request breakdown gives finer grain performance statistics through the life time of the BPEL requests.It uses indention to show the hierarchy of the statistics. Request breakdown <statistics>     <stats key="eng-composite-request" min="0" max="0" average="0.0" count="0">         <stats key="eng-single-request" min="22" max="606" average="258.43" count="277">             <stats key="populate-context" min="0" max="0" average="0.0" count="248"> Please note that in SOA 11.1.1.6, the statistics under Request breakdown is aggregated together cross all the BPEL processes based on statistic keys. It does not differentiate between BPEL processes. If two BPEL processes happen to have the statistic that share same statistic key, the statistics from two BPEL processes will be aggregated together. Keep this in mind when we go through more details below. 2.1 BPEL process activity latencies A very useful measurement in the Request Breakdown is the performance statistics of the BPEL activities you put in your BPEL processes: Assign, Invoke, Receive, etc. The names of the measurement in the JSP page directly come from the names to assign to each BPEL activity. These measurements are under the statistic key "actual-perform" Example 1:  Follows is the measurement for BPEL activity "AssignInvokeCreditProvider_Input", which looks like the Assign activity in a BPEL process that assign an input variable before passing it to the invocation:                                <stats key="AssignInvokeCreditProvider_Input" min="1" max="8" average="1.9" count="153">                                     <stats key="sensor-send-activity-data" min="0" max="1" average="0.0" count="306">                                     </stats>                                     <stats key="sensor-send-variable-data" min="0" max="0" average="0.0" count="153">                                     </stats>                                     <stats key="monitor-send-activity-data" min="0" max="0" average="0.0" count="306">                                     </stats>                                 </stats> Note: because as previously mentioned that the statistics cross all BPEL processes are aggregated together based on statistic keys, if two BPEL processes happen to name their Invoke activity the same name, they will show up at one measurement (i.e. statistic key). Example 2: Follows is the measurement of BPEL activity called "InvokeCreditProvider". You can not only see that by average it takes 3.31ms to finish this call (pretty fast) but also you can see from the further break down that most of this 3.31 ms was spent on the "invoke-service".                                  <stats key="InvokeCreditProvider" min="1" max="13" average="3.31" count="153">                                     <stats key="initiate-correlation-set-again" min="0" max="0" average="0.0" count="153">                                     </stats>                                     <stats key="invoke-service" min="1" max="13" average="3.08" count="153">                                         <stats key="prep-call" min="0" max="1" average="0.04" count="153">                                         </stats>                                     </stats>                                     <stats key="initiate-correlation-set" min="0" max="0" average="0.0" count="153">                                     </stats>                                     <stats key="sensor-send-activity-data" min="0" max="0" average="0.0" count="306">                                     </stats>                                     <stats key="sensor-send-variable-data" min="0" max="0" average="0.0" count="153">                                     </stats>                                     <stats key="monitor-send-activity-data" min="0" max="0" average="0.0" count="306">                                     </stats>                                     <stats key="update-audit-trail" min="0" max="2" average="0.03" count="153">                                     </stats>                                 </stats> 2.2 BPEL engine activity latency Another type of measurements under Request breakdown are the latencies of underlying system level engine activities. These activities are not directly tied to a particular BPEL process or process activity, but they are critical factors in the overall engine performance. These activities include the latency of saving asynchronous requests to database, and latency of process dehydration. My friend Malkit Bhasin is working on providing more information on interpreting the statistics on engine activities on his blog (https://blogs.oracle.com/malkit/). I will update this blog once the information becomes available. Update on 2012-10-02: My friend Malkit Bhasin has published the detail interpretation of the BPEL service engine statistics at his blog http://malkit.blogspot.com/2012/09/oracle-bpel-engine-soa-suite.html.

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• MySQL 5.5 is GA!

  - by rob.young(at)oracle.com

  It is my pleasure to announce that MySQL 5.5 is now GA and ready for production deployment.  You can read Oracle's official press release here. I am excited about 5.5 because of the performance and scalability gains, new replication enhancements and overall improved technical efficiencies.  Congratulations and a sincere "Thanks!" go out to the entire MySQL Community and product engineering teams for making 5.5 the best release of MySQL to date.Please join us for today's MySQL Technology Update webcast where Tomas Ulin and I will cover what's new in MySQL 5.5 and provide an update on the other technologies we are working on. You can download MySQL 5.5 here.  All of the documentation and what's new information is here.  There is also a great article on MySQL 5.5 and the MySQL community here.Thanks for reading, and as always, THANKS for your support of MySQL!

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• How to use jQuery qTip - Simple Example pls

  - by tonsils

  Hi, Would appreciate if someone could pls show me a simple example of how to setup and use qTip jquery plugin for a tooltip to display at the bottom-left of where I hover over an image. I've tried following the demos/examples from the site: qTip but just can't seem to get it working. I am unsure if I need to include the HTML Structure in the documentation and if so, where do I place it? Does this plugin also require a CSS file of some sort? Anywyays would really appreciate if someone could explain/setup an example of using qtip. Would also apreciate if I'm not redirected back to the qTip demo page. Thanks.

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• Looking for search syntax documentation for SharePoint UserProfileManager.Search Method

  - by gregenslow

  Greetings - I have a SharePoint 2010 server running with the User Profile service setup to synchronize to Active Directory. I'd like to use the UserProfileManager.Search() method to return user profiles based on specific criteria. MSDN documentation for this method is here. It states that the method will return user profiles that match the specified search pattern. This is exactly what I want. However, there is no documentation on what a valid search pattern is. I've made a few guesses like "Department = 'HR'" but haven't had any luck. I can't find any other documentation or sample code. Can anyone provide samples of valid "search patterns?" Another way to return user profiles is to do a query using the FullTextSqlQuery object. We don't yet have Search setup on this server so this isn't currently an option. Thanks, Greg

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• Firefox Password script same PW auto login for 1000s devices Possible to use greasemonkey

  - by ritztech

  I currently work in a position that i have to manage and access 1000s of pages for troubleshooting and new setup.... and im trying to figure out a way for firefox or chrome to setup ANYtime it sees for instance a a web based page for equipment like (CISCO, Linksys, Sonicwall, T1 controllers) from the manufacture in the Title bar or from the originating page place a set up 2 - 3 passwords to auto log on with. 1st one of course being the most common so it logs in faster.. I access about 14 different web based products with passwords tied to each of them and if someway i can grab info stating that hey this company is cisco/sonicwall/linksys/hp/ log on with these set of 3-5 credintials. Using possible If then statements.... is that hard i saw some script files but not sure if its difficult because some apps use the MSG BOX built in feature and some use the form submit method built on the page unless i can have 2 different grease monkey scripts at the same time.... thanks.

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• Win C#: Run app as administrator without UAC prompt

  - by paja

  Hello, I need one of my .exe to always run as administrator without UAC prompt. My program will be installed with setup, which will have for one time admin rights, and I need to perform such step in this setup that my exe will be always executed as admin without UAC prompt. I've found 2 solutions so far: 1) Use custom service, which will elevate the program for me. 2) Use tash scheduler: http://www.howtogeek.com/howto/windows-vista/create-administrator-mode-shortcuts-without-uac-prompts-in-windows-vista/ Is there any other solution? Some manifest probably? Thanks.

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• Itautec Accelerates Profitable High Tech Customer Service

  - by charles.knapp

  Itautec is a Brazilian-based global high technology products and services firm with strong performance in the global market of banking and commercial automation, with more than 2,300 global clients. It recently deployed Siebel CRM for sales, customer support, and field service. In the first year of use, Siebel CRM enabled a 30% growth in services revenue. Siebel CRM also reduced support costs. "Oracle's Siebel CRM has minimized costs and made our customer service more agile," said Adriano Rodrigues da Silva, IT Manager. "Before deployment, 95% of our customer service contacts were made by phone. Siebel CRM made it possible to expand' choices, so that now 55% of our customers contact our helpdesk through the newer communications channels." Read more here about Itautec's success, and learn more here about how Siebel CRM can help your firm to grow customer service revenues, improve service levels, and reduce costs.

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• Roll up project-level tasks to the project collection portal in TFS2010

  - by adam.mokan

  I have a Project Collection setup in my TFS2010RC deployment. I have two Projects setup under this collection with their own task lists, which are populated with data. I fully expected the tasks from these individual projects to "roll up" and appear in the task list at the Project Collection level, but they do not. The Project Collection task list is empty. Basically, I'm looking to provide a view so a supervisor could see all tasks across projects quickly and easily. I'm sure I could write a reporting services report, but it seems like this is something so basic that it would have been included and it just need to be turned on or something. I'm sure I'm probably missing something really simple here. Thanks.

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• Refinery CMS (Rails): Creating a plugin or plugins with multiple models and relationships

  - by jklina

  My goal is to create a way for an admin to create two models in the Refinery admin: Campaigns and Videos I would like to have it setup so that a Campaign has many Videos and that each Video belongs to a Campaign. Both Videos and Campaigns will have a title, description, and a preview image. I'm not certain of the best way to go about this. Is it possible to setup two plugins and form a relationship between the two? Or, should I create one plugin with both models. If someone could point me in the right direction or a good example of a solution to a similar problem, I would be grateful. Thank you for looking!

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• Oracle Linux at Oracle Openworld 2011

  - by Zeynep Koch

  In the Oracle Linux track, you'll learn how organizations of all sizes, in all industries, worldwide, are realizing the true benefits of complete and integrated solutions with Oracle Linux and Oracle's world-class Linux support program. Find out what Oracle is doing to simplify the development, deployment, and management of Linux solutions via significant testing initiatives including the Oracle Validated Configurations program. Also discover how Oracle is driving the enterprise Linux technology roadmap with new features and enhancements, making Linux a faster, better operating system for all. Meet Oracle's Linux engineers, experts, customers, and partners, and get answers to all your Linux questions. Here are the Linux sessions and demos that you don't want to miss. · Oracle Linux Strategy and Roadmap · New Features in Oracle Linux · End-to-End Data Integrity Solution for Linux · Debugging and Configuration Best Practices for Oracle Linux · Demos · Hands-on-Labs Register by July 29 and get a $500 discount.http://bit.ly/kSjDMD

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• Does ActiveCollab subversion integration work with subversion over ssh?

  - by executor21

  I'm trying to setup a repository in an ActiveCollab project. During setup, it reports that the connection tests successfully. However, when I try to actually update the repository, I get the following message: Could not obrain the highest revision number for the given repository. If I try to browse the repository, the following error comes up: Fatal error: Call to a member function getRevision() on a non-object in /u/sites/activecollab/webroot/shared/activecollab/activecollab/application/modules/source/controllers/RepositoryController.class.php on line 357 Is this because of trying to access the repository via svn+ssh plugin rather than http? Or did something happen on the ActiveCollab end? The repository is accessed fine via other means -- only ActiveCollab has the problem.

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• How do I use the gravity vector to correctly transform scene for augmented reality?

  - by gpdawson

  I'm trying figure out how to get an OpenGL specified object to be displayed correctly according to the device orientation (ie. according to the gravity vector from the accelerometer, and heading from compass). The GLGravity sample project has an example which is almost like this (despite ignoring heading), but it has some glitches. For example, the teapot jumps 180deg as the device viewing angle crosses the horizon, and it also rotates spuriously if you tilt the device from portrait into landscape. This is fine for the context of this app, as it just shows off an object and it doesn't matter that it does these things. But it means that the code just doesn't work when you attempt to emulate real life viewing of an OpenGL object according to the device's orientation. What happens is that it almost works, but the heading rotation you apply from the compass gets "corrupted" by the spurious additional rotations seen in the GLGravity example project. Can anyone provide sample code that shows how to adjust correctly for the device orientation (ie. gravity vector), or to fix the GLGravity example so that it doesn't include spurious heading changes? //Clear matrix to be used to rotate from the current referential to one based on the gravity vector bzero(matrix, sizeof(matrix)); matrix[3][3] = 1.0; //Setup first matrix column as gravity vector matrix[0][0] = accel[0] / length; matrix[0][1] = accel[1] / length; matrix[0][2] = accel[2] / length; //Setup second matrix column as an arbitrary vector in the plane perpendicular to the gravity vector {Gx, Gy, Gz} defined by by the equation "Gx * x + Gy * y + Gz * z = 0" in which we arbitrarily set x=0 and y=1 matrix[1][0] = 0.0; matrix[1][1] = 1.0; matrix[1][2] = -accel[1] / accel[2]; length = sqrtf(matrix[1][0] * matrix[1][0] + matrix[1][1] * matrix[1][1] + matrix[1][2] * matrix[1][2]); matrix[1][0] /= length; matrix[1][1] /= length; matrix[1][2] /= length; //Setup third matrix column as the cross product of the first two matrix[2][0] = matrix[0][1] * matrix[1][2] - matrix[0][2] * matrix[1][1]; matrix[2][1] = matrix[1][0] * matrix[0][2] - matrix[1][2] * matrix[0][0]; matrix[2][2] = matrix[0][0] * matrix[1][1] - matrix[0][1] * matrix[1][0]; //Finally load matrix glMultMatrixf((GLfloat*)matrix);

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• Real User Experience Insight: Oracle’s Approach to User Experience

  - by JuergenKress

  This self-study course is the first in a series about Oracle Real User Experience Insight. Intended for a broad, general audience, this course begins with a discussion on why user experience is important, followed by Oracle’s approach to user experience. Next, several use cases for Real User Experience Insight is presented. The course ends by showing how Real User Experience Insight is integrated with Oracle Enterprise Manager 12c. This course is a suggested prerequisite for the other two self-studies in this series, one that focuses on basic navigation, data structures and workflows, and the other that focuses on best practices in deployment. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit  www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Mix Forum Technorati Tags: real user experience,education,training,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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• Test-Drive ASP.NET MVC Review

  - by Ben Griswold

  A few years back I started dallying with test-driven development, but I never fully committed to the practice. This wasn’t because I didn’t believe in the value of TDD; it was more a matter of not completely understanding how to incorporate “test first” into my everyday development. Back in my web forms days, I could point fingers at the framework for my ignorance and laziness. After all, web forms weren’t exactly designed for testability so who could blame me for not embracing TDD in those conditions, right? But when I switched to ASP.NET MVC and quickly found myself fresh out of excuses and it became instantly clear that it was time to get my head around red-green-refactor once and for all or I would regretfully miss out on one of the biggest selling points the new framework had to offer. I have previously written about how I learned ASP.NET MVC. It was primarily hands on learning but I did read a couple of ASP.NET MVC books along the way. The books I read dedicated a chapter or two to TDD and they certainly addressed the benefits of TDD and how MVC was designed with testability in mind, but TDD was merely an afterthought compared to, well, teaching one how to code the model, view and controller. This approach made some sense, and I learned a bunch about MVC from those books, but when it came to TDD the books were just a teaser and an opportunity missed.  But then I got lucky – Jonathan McCracken contacted me and asked if I’d review his book, Test-Drive ASP.NET MVC, and it was just what I needed to get over the TDD hump. As the title suggests, Test-Drive ASP.NET MVC takes a different approach to learning MVC as it focuses on testing right from the very start. McCracken wastes no time and swiftly familiarizes us with the framework by building out a trivial Quote-O-Matic application and then dedicates the better part of his book to testing first – first by explaining TDD and then coding a full-featured Getting Organized application inspired by David Allen’s popular book, Getting Things Done. If you are a learn-by-example kind of coder (like me), you will instantly appreciate and enjoy McCracken’s style – its fast-moving, pragmatic and focused on only the most relevant information required to get you going with ASP.NET MVC and TDD. The book continues with the test-first theme but McCracken moves away from the sample application and incorporates other practical skills like persisting models with NHibernate, leveraging Inversion of Control with the IControllerFactory and building a RESTful web service. What I most appreciated about this section was McCracken’s use of and praise for open source libraries like Rhino Mocks, SQLite and StructureMap (to name just a few) and productivity tools like ReSharper, Web Platform Installer and ASP.NET SQL Server Setup Wizard.  McCracken’s emphasis on real world, pragmatic development was clearly demonstrated in every tool choice, straight-forward code block and developer tip. Whether one is already familiar with the tools/tips or not, McCracken’s thought process is easily understood and appreciated. The final section of the book walks the reader through security and deployment – everything from error handling and logging with ELMAH, to ASP.NET Health Monitoring, to using MSBuild with automated builds, to the deployment  of ASP.NET MVC to various web environments. These chapters, like those prior, offer enough information and explanation to simply help you get the job done.  Do I believe Test-Drive ASP.NET MVC will turn you into an expert MVC developer overnight?  Well, no.  I don’t think any book can make that claim.  If that were possible, I think book list prices would skyrocket!  That said, Test-Drive ASP.NET MVC provides a solid foundation and a unique (and dare I say necessary) approach to learning ASP.NET MVC.  Along the way McCracken shares loads of very practical software development tips and references numerous tools and libraries. The bottom line is it’s a great ASP.NET MVC primer – if you’re new to ASP.NET MVC it’s just what you need to get started.  Do I believe Test-Drive ASP.NET MVC will give you everything you need to start employing TDD in your everyday development?  Well, I used to think that learning TDD required a lot of practice and, if you’re lucky enough, the guidance of a mentor or coach.  I used to think that one couldn’t learn TDD from a book alone. Well, I’m still no pro, but I’m testing first now and Jonathan McCracken and his book, Test-Drive ASP.NET MVC, played a big part in making this happen.  If you are an MVC developer and a TDD newb, Test-Drive ASP.NET MVC is just the book for you.

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• How to run benchmarking on MySQL?

  - by HexaHow

  My server has installed MySQL Server 5.1. I would like to run benchmarking on the MySQL, but I couldn't found sql-bench, which is Benchmark Suite provided by MySQL. The MySQL Benchmark Suite seem like complicated to be install or setup into my server. I need one can be direct setup to test the benchmark without using Perl script liked the benchmark suite from MySQL. Do anyone knows how to get the most popular benchmarking tool to measure MySQL performance? I need to measure the performance of my SQL written in ASP.Net that connecting to MySQL. I need to optimize the SQL script. It's better has a benchmarking tool where can be read my SQL in many times and return me the query result's time for comparison, etc. I just need to know the time consuming and performance for the each SQL runs in many times.

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• WPF Window Drag/Move Boundary

  - by Sentax

  Hi everyone, just curious if you know of any way to setup a drag boundary for a window? It would be nice to have these properties: Me.MinLeft = 10 Me.MinTop = 10 Me.MaxLeft = 150 Me.MaxTop = 150 Those are made up properties, btw, which would be nice to have. I know I could probably setup a timer to fire ever 10th of a second and check the left and top and then move it back if it's over. But it would be more elegant to have the window act like it hit a wall and can't go any farther, like moving to the edge of the screen or something similar. Edit: There seems to be some confusion somewhere, the point I'm trying to make is in the paragraph above, dragging, not re-sizing.

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• Is TDD broken in Python?

  - by Konstantin

  Hi! Assume we have a class UserService with attribute current_user. Suppose it is used in AppService class. We have AppService covered with tests. In test setup we stub out current_user with some mock value: UserService.current_user = 'TestUser' Assume we decide to rename current_user to active_user. We rename it in UserService but forget to make change to its usage in AppService. We run tests and they pass! Test setup adds attribute current_user which is still (wrongly but successfully) used in AppService. Now our tests are useless. They pass but application will fail in production. We can't rely on our test suite == TDD is not possible. Is TDD broken in Python?

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• application: didFinishLaunchingWithOptions doesn't execute, but RootViewController: viewDidLoad does

  - by BeachRunnerJoe

  I'm playing around with the iPad SplitView template and it was working fine before I started swapping out view objects in my RootViewController. When it was working fine, the application:didFinishLaunchingWithOptions method would be called and would setup my persistant store objects, then the RootViewController:viewDidLoad method would be called to populate my rootView with data from my store. I opened up IB and started swapping out view objects in my RootView and now the application:didFinishLaunchingWithOptions method never gets called, but the RootViewController:viewDidLoad method still does. Obviously, the app crashes because the viewDidLoad method depends on the successful execution of the didFinishLauchingWIthOptions method to setup the persistent store objects. Does anyone have any thoughts on what is causing this or how I can go about investigating what's causing this? I'm obviously new to iPhone OS development, so I apologize if this questions is absurd in any way. Thanks so much in advance for your help!

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