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  • Weblogic is slow to start (11mins) under VM (VirtualBox and VMware)

    - by Vladimir Dyuzhev
    (SOLVED! BY FAKING SYSTEM RANDOM GENERATOR, SEE BELOW) I'm setting up a VM image for my dev/build team. Inside that VM a Weblogic domain should be running. I use Ububtu server distro, WLS 9.2MP3 + ALSB. Everything works OK, quite fast, but at the start time the WLS stops twice for a measurable amounts of time. Two stops in total amount to about 10 minutes delay. For tasks where deployment requires server restart it's very annoying. :-( Sleeping time is not constant, sometimes the server starts very fast, sometimes so-so, sometimes 10 minutes or more. Interesting that if I press Enter while looking at the stopped server, it wakes up much faster, sometimes after a few seconds. WLST (Weblogic Jython shell) is also hanging for quite a time when executed in VM. It doesn't react to Enter though. Here must be some developers who run WLS with a VM. I wonder if others have the same problem? Was someone able to solve it? Here's the server output (just for a case): Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_12-b04) Java HotSpot(TM) Client VM (build 1.5.0_12-b04, mixed mode) Starting WLS with line: /shared2/beahome/jdk150_12/bin/java -client -Xmx256m -XX:MaxPermSize=128m -Xverify:none -da -Dplatform.home=/shared2/beahome/weblogic92 -Dwls.home=/shared2/beahome/weblogic92/server -Dwli.home=/shared2/beahome/weblogic92/integration -Dweblogic.management.discover=true -Dwl w.iterativeDev= -Dwlw.testConsole= -Dwlw.logErrorsToConsole= -Dweblogic.ext.dirs=/shared2/beahome/patch_weblogic923/profiles/default/sysext_ manifest_classpath -Dweblogic.management.username=admin -Dweblogic.management.password=wlsadmin -Dweblogic.Name=LOGMGR-admin -Djava.security .policy=/shared2/beahome/weblogic92/server/lib/weblogic.policy weblogic.Server <1-Apr-2010 12:47:22 o'clock PM GMT-05:00> <Notice> <WebLogicServer> <BEA-000395> <Following extensions directory contents added to the end of the classpath: /shared2/beahome/weblogic92/platform/lib/p13n/p13n-schemas.jar:/shared2/beahome/weblogic92/platform/lib/p13n/p13n_common.jar:/shared2/beahom e/weblogic92/platform/lib/p13n/p13n_system.jar:/shared2/beahome/weblogic92/platform/lib/wlp/netuix_common.jar:/shared2/beahome/weblogic92/pl atform/lib/wlp/netuix_schemas.jar:/shared2/beahome/weblogic92/platform/lib/wlp/netuix_system.jar:/shared2/beahome/weblogic92/platform/lib/wl p/wsrp-common.jar> <1-Apr-2010 12:47:22 o'clock PM GMT-05:00> <Info> <WebLogicServer> <BEA-000377> <Starting WebLogic Server with Java HotSpot(TM) Client VM Ve rsion 1.5.0_12-b04 from Sun Microsystems Inc.> <1-Apr-2010 12:47:23 o'clock PM GMT-05:00> <Info> <Management> <BEA-141107> <Version: WebLogic Server 9.2 MP3 Mon Mar 10 08:28:41 EDT 2008 1096261 > <1-Apr-2010 12:47:25 o'clock PM GMT-05:00> <Info> <WebLogicServer> <BEA-000215> <Loaded License : /shared2/beahome/license.bea> <1-Apr-2010 12:47:25 o'clock PM GMT-05:00> <Notice> <WebLogicServer> <BEA-000365> <Server state changed to STARTING> <1-Apr-2010 12:47:25 o'clock PM GMT-05:00> <Info> <WorkManager> <BEA-002900> <Initializing self-tuning thread pool> <1-Apr-2010 12:47:25 o'clock PM GMT-05:00> <Notice> <Log Management> <BEA-170019> <The server log file /shared2/wldomains/beaadmd/LOGMGR/ser vers/LOGMGR-admin/logs/LOGMGR-admin.log is opened. All server side log events will be written to this file.> Here we have the first delay, up to 5 mins... <1-Apr-2010 12:53:21 o'clock PM GMT-05:00> <Notice> <Security> <BEA-090082> <Security initializing using security realm myrealm.> <1-Apr-2010 12:53:24 o'clock PM GMT-05:00> <Notice> <WebLogicServer> <BEA-000365> <Server state changed to STANDBY> <1-Apr-2010 12:53:24 o'clock PM GMT-05:00> <Notice> <WebLogicServer> <BEA-000365> <Server state changed to STARTING> <1-Apr-2010 12:53:25 o'clock PM GMT-05:00> <Notice> <Log Management> <BEA-170027> <The server initialized the domain log broadcaster success fully. Log messages will now be broadcasted to the domain log.> <1-Apr-2010 12:53:25 o'clock PM GMT-05:00> <Notice> <WebLogicServer> <BEA-000365> <Server state changed to ADMIN> <1-Apr-2010 12:53:25 o'clock PM GMT-05:00> <Notice> <WebLogicServer> <BEA-000365> <Server state changed to RESUMING> <1-Apr-2010 12:53:28 o'clock PM GMT-05:00> <Notice> <Security> <BEA-090171> <Loading the identity certificate and private key stored under t he alias adminuialias from the jks keystore file /shared2/wldomains/beaadmd/LOGMGR/CustomIdentity.jks.> And here is the second, again up to 5 mins. <1-Apr-2010 12:58:56 o'clock PM GMT-05:00> <Notice> <Security> <BEA-090169> <Loading trusted certificates from the jks keystore file /shared 2/wldomains/beaadmd/LOGMGR/CustomTrust.jks.> <1-Apr-2010 12:58:57 o'clock PM GMT-05:00> <Notice> <Server> <BEA-002613> <Channel "DefaultSecure" is now listening on 192.168.56.102:7002 f or protocols iiops, t3s, ldaps, https.> <1-Apr-2010 12:58:57 o'clock PM GMT-05:00> <Notice> <Server> <BEA-002613> <Channel "Default" is now listening on 192.168.56.102:8012 for pro tocols iiop, t3, ldap, http.> <1-Apr-2010 12:58:57 o'clock PM GMT-05:00> <Notice> <WebLogicServer> <BEA-000331> <Started WebLogic Admin Server "LOGMGR-admin" for domain " LOGMGR" running in Development Mode> <1-Apr-2010 12:58:57 o'clock PM GMT-05:00> <Notice> <WebLogicServer> <BEA-000365> <Server state changed to RUNNING> <1-Apr-2010 12:58:57 o'clock PM GMT-05:00> <Notice> <WebLogicServer> <BEA-000360> <Server started in RUNNING mode> UPDATE I think I've got the track: it must be the randon seed initialization. That may explain why generating keyboard events release the server. I've made the thread dump, and one thread is in runnable state, but waiting: "[STANDBY] ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)'" daemon prio=1 tid=0x0a7b06e8 nid=0xeda runnable [0x728a500 0..0x728a6d80] at java.io.FileInputStream.readBytes(Native Method) at java.io.FileInputStream.read(FileInputStream.java:194) at sun.security.provider.NativePRNG$RandomIO.readFully(NativePRNG.java:185) at sun.security.provider.NativePRNG$RandomIO.implGenerateSeed(NativePRNG.java:202) - locked <0x7d928c78> (a java.lang.Object) at sun.security.provider.NativePRNG$RandomIO.access$300(NativePRNG.java:108) at sun.security.provider.NativePRNG.engineGenerateSeed(NativePRNG.java:102) at java.security.SecureRandom.generateSeed(SecureRandom.java:475) at weblogic.security.AbstractRandomData.ensureInittedAndSeeded(AbstractRandomData.java:83) SOLVED Weblogic uses SecureRandom to init security subsystem. SecureRandom by default uses /dev/urandom file. For some reason, reading this file under VM comes to halt quite often. Generating console events helps to create more randomness, and release the WLS. For the test purposes I have changed jre/lib/security/java.security file, property to securerandom.source=file:/tmp/big.random.file. Weblogic now starts in 15 seconds.

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  • xcodebuild: error: 'file' is not a workspace file

    - by Vladimir Voitekhovski
    there were no problem but now my job in Jenkins CI failed. I try to rename Xcode workspace like RacingPost.xcworkspace no changes. Try to delete this options at all, this job also failed. Configuration: XCODEPROJECTDIRECTORY=. TARGET_BUILD_DIR=${XCODEPROJECTDIRECTORY}/build XCODEWORKSPACE=RacingPost.xcodeproj XCODESCHEME=UnitTests XCODECONFIGURATION=ENTERPRISE-HD XCODESDK=iphoneos XCODEARGS="TEST_AFTER_BUILD=YES" XCODEBUILD_APP_NAME=RacingPost.app XCODETARGET=UnitTests XCODEPROJECT=RacingPost.xcodeproj IPA_PATH=${TARGET_BUILD_DIR}/RacingPost.ipa xcrun -sdk iphoneos PackageApplication -v "$(${XCTOOL_HOME}/xctool.sh -scheme RacingPost -project ${XCODEPROJECT} -configuration "${XCODECONFIGURATION}" -sdk "${XCODESDK}" -showBuildSettings -workspace ${WORKSPACE}| grep TARGET_BUILD_DIR | cut -d = -f 2 | cut -d . -f 1 | head -1 | sed 's/^[ ^t]*//')/${XCODEBUILD_APP_NAME}" -o "${IPA_PATH}" Output: 17:33:25 ** BUILD SUCCEEDED ** (58104 ms) 17:33:27 [RGP-ODC_RacingPost_iPad_staging] $ /bin/bash -xe /var/folders/df/575wx61n4dzdlw_48pgsjwk40000gn/T/hudson6052564280091633098.sh 17:33:27 + cd . 17:33:27 ++ /Users/epadmin/ci-tools/xctool/xctool.sh -scheme RacingPost -project RacingPost.xcodeproj - configuration ENTERPRISE-HD -sdk iphoneos -showBuildSettings -workspace /Users/epadmin/jenkins-slave/workspace/RGP- ODC_RacingPost_iPad_staging 17:33:27 ++ grep TARGET_BUILD_DIR 17:33:27 ++ cut -d = -f 2 17:33:27 ++ cut -d . -f 1 17:33:27 ++ head -1 17:33:27 ++ sed 's/^[ ^t]*//' 17:33:30 xcodebuild: error: '/Users/epadmin/jenkins-slave/workspace/RGP-ODC_RacingPost_iPad_staging' is not a workspace file. 17:33:30 + xcrun -sdk iphoneos PackageApplication -v /RacingPost.app -o ./build/RacingPost.ipa 17:33:30 error: Specified application doesn't exist or isn't a bundle directory : '/RacingPost.app' 17:33:30 Build step 'Execute shell' marked build as failure My structure of folders on node: epadmin@epclus1macp02:~/jenkins-slave/workspace/RGP-ODC_RacingPost_iPad_staging$ ls drwxr-xr-x 21 epadmin staff 714B May 29 10:28 ./ drwxr-xr-x 37 epadmin staff 1.2K May 29 10:33 ../ drwxr-xr-x 7 epadmin staff 238B May 29 10:28 .svn/ drwxr-xr-x 10 epadmin staff 340B Apr 18 09:02 RacingPost/ drwxr-xr-x 10 epadmin staff 340B May 29 09:27 RacingPost.xcodeproj/ drwxr-xr-x 10 epadmin staff 340B May 7 09:04 RacingPostUtilApp/ drwxr-xr-x 3 epadmin staff 102B May 18 02:16 Source/ drwxr-xr-x 75 epadmin staff 2.5K Apr 16 09:03 UnitTests/ drwxr-xr-x 16 epadmin staff 544B May 29 09:05 _certs/ drwxr-xr-x 3 epadmin staff 102B Apr 15 09:03 _doc/ drwxr-xr-x 4 epadmin staff 136B Apr 15 09:03 _provisioning/ drwxr-xr-x 3 epadmin staff 102B May 29 10:31 build/ -rw-r--r-- 1 epadmin staff 9.9K May 19 04:39 build.xml

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  • Linq-to-sql Compiled Query returns object NOT belonging to submitted DataContext ?

    - by Vladimir Kojic
    Compiled query: public static class Machines { public static readonly Func<OperationalDataContext, short, Machine> QueryMachineById = CompiledQuery.Compile((OperationalDataContext db, short machineID) => db.Machines.Where(m => m.MachineID == machineID).SingleOrDefault() ); public static Machine GetMachineById(IUnitOfWork unitOfWork, short id) { Machine machine; // Old code (working) //var machineRepository = unitOfWork.GetRepository<Machine>(); //machine = machineRepository.Find(m => m.MachineID == id).SingleOrDefault(); // New code (making problems) machine = QueryMachineById(unitOfWork.DataContext, id); return machine; } It looks like compiled query is returning result from another data context [TestMethod] public void GetMachinesTest() { using (var unitOfWork = IoC.Get<IUnitOfWork>()) { // Compile Query var machine = Machines.GetMachineById(unitOfWork, 3); } using (var unitOfWork = IoC.Get<IUnitOfWork>()) { var machineRepository = unitOfWork.GetRepository<Machine>(); // Get From Repository var machineFromRepository = machineRepository.Find(m => m.MachineID == 2).SingleOrDefault(); var machine = Machines.GetMachineById(unitOfWork, 2); VerifyHuskyHostMachine(machineFromRepository, 2, "Machine 2", "222222", "H400RS", "MachineIconB.xaml", false, true, LicenseType.Licensed, InterfaceType.HuskyHostV2, "10.0.97.2:8080", "10.0.97.2", 8080, "4.0"); VerifyHuskyHostMachine(machine, 2, "Machine 2", "222222", "H400RS", "MachineIconB.xaml", false, true, LicenseType.Licensed, InterfaceType.HuskyHostV2, "10.0.97.2:8080", "10.0.97.2", 8080, "4.0"); Assert.AreSame(machineFromRepository, machine); // FAIL } } If I run other (complex) unit tests I'm getting as expected: An attempt has been made to Attach or Add an entity that is not new, perhaps having been loaded from another DataContext. Another Important information is that this test is under TransactionScope! UPDATE: It looks like next link is describing similar problem (is this bug solved ?): http://social.msdn.microsoft.com/Forums/en-US/linqprojectgeneral/thread/9bcffc2d-794e-4c4a-9e3e-cdc89dad0e38

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  • Jqzoom not working on safari

    - by Vladimir gatev
    Hello I am using jqzoom and it is working fine on all browser except safari there is an error "TypeError: Result of expression 'smallimagedata.pos' [undefined] is not an object." Please if somebody can help the page is http://www.legzskin.com/products.php?product=CHARMED when u mouseover the 3 images it should appear zoom window over the flash on the left

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  • How To Run integrational Tests

    - by Vladimir
    In our project we have a plenty of Unit Tests. They help to keep project rather well-tested. Besides them we have a set of tests which are unit tests, but depends on some kind of external resource. We call them external tests. They can access web-service sometimes or similar. While unit tests is easy to run the integrational tests couldn't pass sometimes - for example due to timeout error. Also these tests can take too much time to run. Currently we keep integration/external unit tests just to run them when developing corresponding functionality. For plain unit tests we use TeamCIty for continuous integration. How do you run the integration unit tests and when do you run them?

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  • Capture window close event

    - by -providergordienko.vladimir
    I want to capture events that close editor window (tab) in Visual Studio 2008 IDE. When I use dte2.Application.Events.get_CommandEvents(null, 0).BeforeExecute I successfully captured such events: File.Close File.CloseAllButThis File.Exit Window.CloseDocumentWindow and others. If code in window is not acceptable, I stop the event (CancelDefault = true). But if I click "X" button on the right hand side, "Save Changes"; dialog appears, tab with editor window close and I have no any captured events. In this case I can capture WindowClosing event, but can not cancel the event. Is it poosible to handle "x" button click and stop event?

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  • Java Integer: what is faster comparison or subtraction?

    - by Vladimir
    I've found that java.lang.Integer implementation of compareTo method looks as follows: public int compareTo(Integer anotherInteger) { int thisVal = this.value; int anotherVal = anotherInteger.value; return (thisVal<anotherVal ? -1 : (thisVal==anotherVal ? 0 : 1)); } The question is why use comparison instead of subtraction: return thisVal - anotherVal;

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  • Eclipse IDE Learning Curve

    - by Vladimir Georgiev
    I am a C# guy with pretty good grasp of Visual Studio IDE usage (using it since VS2003). Right now, I am doing a proof of concept app using Eclipse 3.4.1. Is there any good reference or book which describes the usage of Eclipse IDE, compared to Visual Studio. Is there any Eclipse guide for Visual Studio users :) Thanks, in advance.

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  • JSF ISO-8859-2 charset

    - by Vladimir
    Hi! I have problem with setting proper charset on my jsf pages. I use MySql db with latin2 (ISO-8859-2 charset) and latin2_croatian_ci collation. But, I have problems with setting values on backing managed bean properties. Page directive on top of my page is: <%@ page language="java" pageEncoding="ISO-8859-2" contentType="text/html; charset=ISO-8859-2" %> In head I included: <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-2"> And my form tag is: <h:form id="entityDetails" acceptcharset="ISO-8859-2"> I've created and registered Filter in web.xml with following doFilter method implementation: public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { request.setCharacterEncoding("ISO-8859-2"); response.setCharacterEncoding("ISO-8859-2"); chain.doFilter(request, response); } But, i.e. when I set managed bean property through inputText, all special (unicode) characters are replaced with '?' character. I really don't have any other ideas how to set charset to pages to perform well. Any suggestions? Thanks in advance.

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  • Linq-to-sql Compiled Query returning object NOT belonging to submitted DataContext

    - by Vladimir Kojic
    Compiled query: public static class Machines { public static readonly Func<OperationalDataContext, short, Machine> QueryMachineById = CompiledQuery.Compile((OperationalDataContext db, short machineID) => db.Machines.Where(m => m.MachineID == machineID).SingleOrDefault() ); public static Machine GetMachineById(IUnitOfWork unitOfWork, short id) { Machine machine; // Old code (working) //var machineRepository = unitOfWork.GetRepository<Machine>(); //machine = machineRepository.Find(m => m.MachineID == id).SingleOrDefault(); // New code (making problems) machine = QueryMachineById(unitOfWork.DataContext, id); return machine; } It looks like compiled query is caching Machine object and returning the same object even if query is called from new DataContext (I’m disposing DataContext in the service but I’m getting Machine from previous DataContext). I use POCOs and XML mapping. Revised: It looks like compiled query is returning result from new data context and it is not using the one that I passed in compiled-query. Therefore I can not reuse returned object and link it to another object obtained from datacontext thru non compiled queries. [TestMethod] public void GetMachinesTest() { // Test Preparation (not important) using (var unitOfWork = IoC.Get<IUnitOfWork>()) { var machineRepository = unitOfWork.GetRepository<Machine>(); // GET ALL List<Machine> list = machineRepository.FindAll().ToList<Machine>(); VerifyIntegratedMachine(list[2], 3, "Machine 3", "333333", "G300PET", "MachineIconC.xaml", false, true, LicenseType.Licensed, "10.0.97.3", "10.0.97.3", 0); var machine = Machines.GetMachineById(unitOfWork, 3); Assert.AreSame(list[2], machine); // PASS !!!! } using (var unitOfWork = IoC.Get<IUnitOfWork>()) { var machineRepository = unitOfWork.GetRepository<Machine>(); // GET ALL List<Machine> list = machineRepository.FindAll().ToList<Machine>(); VerifyIntegratedMachine(list[2], 3, "Machine 3", "333333", "G300PET", "MachineIconC.xaml", false, true, LicenseType.Licensed, "10.0.97.3", "10.0.97.3", 0); var machine = Machines.GetMachineById(unitOfWork, 3); Assert.AreSame(list[2], machine); // FAIL !!!! } } If I run other (complex) unit tests I'm getting as expected: An attempt has been made to Attach or Add an entity that is not new, perhaps having been loaded from another DataContext.

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  • Nullable Date column merge problem

    - by Vladimir
    I am using JPA with openjpa implementation beneath, on a Geronimo application server. I am also using MySQL database. I have a problem with updating object with nullable Date property. When I'm trying to merge entity with Date property set to null, no sql update script is generated (or when other fields are modified, sql update script is generated, but date field is ommited from it). If date field is set to some other not null value, update script is properly generated. Did anyone have problem like that?

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  • Java image conversion to RGB565

    - by Vladimir
    I try to convert image to RGB565 format. I read this image: BufferedImage bufImg = ImageIO.read(imagePathFile); sendImg = new BufferedImage(CONTROLLER_LCD_WIDTH/*320*/, CONTROLLER_LCD_HEIGHT/*240*/, BufferedImage.TYPE_USHORT_565_RGB); sendImg .getGraphics().drawImage(bufImg, 0, 0, CONTROLLER_LCD_WIDTH/*320*/, CONTROLLER_LCD_HEIGHT/*240*/, null); Here is it: Then I convert it to RGB565: int numByte=0; byte[] OutputImageArray = new byte[CONTROLLER_LCD_WIDTH*CONTROLLER_LCD_HEIGHT*2]; int i=0; int j=0; int len = OutputImageArray.length; for (i=0;i<CONTROLLER_LCD_WIDTH;i++) { for (j=0;j<CONTROLLER_LCD_HEIGHT;j++) { Color c = new Color(sendImg.getRGB(i, j)); int aRGBpix = sendImg.getRGB(i, j); int alpha; int red = c.getRed(); int green = c.getGreen(); int blue = c.getBlue(); //RGB888 red = (aRGBpix >> 16) & 0x0FF; green = (aRGBpix >> 8) & 0x0FF; blue = (aRGBpix >> 0) & 0x0FF; alpha = (aRGBpix >> 24) & 0x0FF; //RGB565 red = red >> 3; green = green >> 2; blue = blue >> 3; //A pixel is represented by a 4-byte (32 bit) integer, like so: //00000000 00000000 00000000 11111111 //^ Alpha ^Red ^Green ^Blue //Converting to RGB565 short pixel_to_send = 0; int pixel_to_send_int = 0; pixel_to_send_int = (red << 11) | (green << 5) | (blue); pixel_to_send = (short) pixel_to_send_int; //dividing into bytes byte byteH=(byte)((pixel_to_send >> 8) & 0x0FF); byte byteL=(byte)(pixel_to_send & 0x0FF); //Writing it to array - High-byte is second OutputImageArray[numByte]=byteH; OutputImageArray[numByte+1]=byteL; numByte+=2; } } Then I try to restore this from resulting array OutputImageArray: i=0; j=0; numByte=0; BufferedImage NewImg = new BufferedImage(CONTROLLER_LCD_WIDTH, CONTROLLER_LCD_HEIGHT, BufferedImage.TYPE_USHORT_565_RGB); for (i=0;i<CONTROLLER_LCD_WIDTH;i++) { for (j=0;j<CONTROLLER_LCD_HEIGHT;j++) { int curPixel=0; int alpha=0x0FF; int red; int green; int blue; byte byteL=0; byte byteH=0; byteH = OutputImageArray[numByte]; byteL = OutputImageArray[numByte+1]; curPixel= (byteH << 8) | (byteL); //RGB565 red = (curPixel >> (6+5)) & 0x01F; green = (curPixel >> 5) & 0x03F; blue = (curPixel) & 0x01F; //RGB888 red = red << 3; green = green << 2; blue = blue << 3; //aRGB curPixel = 0; curPixel = (alpha << 24) | (red << 16) | (green << 8) | (blue); NewImg.setRGB(i, j, curPixel); numByte+=2; } } I output this restored image. But I see that it looks very poor. I expected the lost of pictures quality. But as I thought, this picture has to have almost the same quality as the previous picture. - Is it right? Is my code right?

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  • Linq-to-sql Compiled Query is returning result from different DataContext

    - by Vladimir Kojic
    Compiled query: public static Func<OperationalDataContext, short, Machine> QueryMachineById = CompiledQuery.Compile((OperationalDataContext db, short machineID) => db.Machines.Where(m => m.MachineID == machineID).SingleOrDefault()); It looks like compiled query is caching Machine object and returning the same object even if query is called from new DataContext (I’m disposing DataContext in the service but I’m getting Machine from previous DataContext). I use POCOs and XML mapping. Revised: It looks like compiled query is returning result from new data context and it is not using the one that I passed in compiled-query. Therefore I can not reuse returned object and link it to another object obtained from datacontext thru non compiled queries. I’m using unit of work pattern : // First Call Using(new DataContext) { Machine from DataContext.Table == machine from cached query } // Do some work // Second Call is failing Using(new DataContext) { Machine from DataContext.Table <> machine from cached query }

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  • TeamCity and pending Git merge branch commit keeps build with failed tests

    - by Vladimir
    We use TeamCity for continuous integration and Git for source control. Generally it works pretty well - convenient, modern and good us quick feedback when tests fails. There is a strange behavior related to Git merge specifics. Here are steps of the case: First developer pulls from master repo. Second developer pulls from master repo. First developer makes commit A locally. Second developer makes commit B locally; Second developer pushes commit B. First developer want to push commit A but unable because he have to pull commit B first. First developer pull's from remote reposity. First developer pushes commit A and generated merge branch commit. The history of commits in master repo is following: B second developer A first developer merge branch first developer. Now let's assume that Second Developer fixed some failing tests in his commit B. What TeamCity will do is following: Commit B arrives - TeamCity makes build #1 with all tests passed Commit A arrives - TeamCity makes build #2 (without commit B) test bar becomes Red! TeamCity thought that Pending "Merge Branch" commit doesn't contain any changes (any new files) - but it actually does contain the merge of commit B, so the TeamCity don't want to make new build here and make tests green. Here are two problems: 1. In our case we have failed tests returning back in second commit (commit A) 2. TeamCity don't want to make a new build and make tests back green. Does anybody know how to fix both of this problems. I consider some reasonable general approach.

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  • Multiline values in dropdown (ComboBox)

    - by Vladimir Kuzin
    Is there are any libraries to make ComboBox to select multiline options when expanded. I am looking something similar to Combobox in ExtJS except values have to appear when user clicks down arrow, like in normal dropdown. Does someone know if its possible to do something like that with ExtJS? Because their own community and support sure doesn’t (http://www.extjs.com/forum/showthread.php?t=94079)

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  • Successful business model of small development tool

    - by Vladimir
    I have an idea on my mind to develop and sell small helpful developer tools like the tool asked in this question http://stackoverflow.com/questions/2562378/visual-objects-editor. I am looking for your answers which will shortly describe "How" and "What" to sell in order to be successful at that. I imagine different answers here from concrete to more general. Examples: "Sell your visual objects editor and I will buy it :-)" "Tbe only way to sell developer tool is to integrate it with known Java IDE" "Developers won't pay for the tools they use. Make it free and be famous" I encourage others to vote for the answers they like the most.

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  • Is it possible to use .properties files in web.xml in conjunction with contextConfigLocation paramet

    - by Vladimir
    Here is part of my web.xml: <context-param> <param-name>contextConfigLocation</param-name> <param-value> classpath:application-config.xml </param-value> </context-param> application-config.xml uses property placeholder: <context:property-placeholder location="classpath:properties/db.properties"/> Is it possible somehow to define which properties file to use in web.xml rather than in application-config.xml?

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  • XPathNavigator in Silverlight

    - by vladimir
    I have a code library that makes heavy use of XPathNavigator to parse some specific xml document. The xml document is cross-referenced, meaning that an element can reference another which has not yet been encountered during parsing: <ElementA ...> <DependentElementX id="1234"> </ElementA> <ElementX id="1234" .../> The document doesn't really look like this, but the point is that 1) there is an xml schema that enforces the overall document structure, 2) elements inside the document can reference each other using some IDs, and 3) there is quite a few such cross references between different elements in the document. The document is parsed in two phases. In the first pass I walk through the document XPathDocument doc = ...; XPathNavigator nav = doc.CreateNavigator(); nav.MoveToRoot(); nav.MoveToFirstChild()... and occasionally 'bookmark' the current position (element) in the document using XPathNavigator.Clone() method. This gives me a lightweight instance of an XPathNavigator which I can store somewhere and use later to jump back to a particular place (element) in my document. Once I have enough information collected in the first pass (for example, I have made sure there is indeed an ElementX with an id='1234'), I jump back to saved bookmarks (using those saved XPathNavigators) and complete the parsing. Well, now I'm about to use this library in Silverlight 3.0 and to my horror the XPathNavigator is not in the System.Xml assembly. Questions: 1) Am I missing something obvious (i.e. XPathNavigator does exist in some shape or form, for example in a toolkit or a freeware library)? 2) If I do have to make modifications in the code, what would be the best way to go? Ideally, I would like to make minimal changes, not to rewrite 80% of the code just to be able to use something like XLinq. To resume, in case I have to give up XPathNavigator, all I need is a way to bookmark places in my document and to get back to them so that I can continue to iterate from where I left off. Thanks in advance for any help/ideas.

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  • Visual objects editor

    - by Vladimir
    I am looking for a tool which will make able to edit parts of Java code visually using something like inspector and place code back. For example: Person p = new Person(); p.setName("Bill Libb"); p.setAge(25); This code should be generated from visual inspector and copied into Java IDE. This will help quickly create sample objects for testing.

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  • NonStop ODBC: how the connections (ODBC servers) are assigned to CPUs?

    - by Vladimir Dyuzhev
    We have an ODBC pool running on a NonStop server. The pool is connected to SQL/MX. This pool is used by a few external Java applications, each of which has an JDBC pool connected to ODBC pool (e.g. 14 connections per application). With time (after a few application recycles) we see an imbalance between CPUs -- some have 8 ODBC processes running, some only 5. That leads to CPU time imbalance too. Up to this point we assumed that a CPU is assigned to ODBC process in round-robin fashion. That would maintain the number of ODBC processes more or less equally distributed. It's not the case though. Is there any information on how ODBC pool decided which CPU to choose for every new allocated process? Does it look at CPU load? Available memory? Something else? Sadly, even HP's own people (available to us, that is) couldn't answer those questions with certainty. :-(

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  • Objective-C categories in static library

    - by Vladimir
    Can you guide me how to properly link static library to iphone project. I use staic library project added to app project as direct dependency (target - general - direct dependecies) and all works OK, but categories. A category defined in static library is not working in app. So my question is how to add static library with some categories into other project? And in general, what is best practice to use in app project code from other projects?

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  • Obj-c categories in static library

    - by Vladimir
    Can you guide me how to properly link static library to iphone project. I use staic library project added to app project as direct dependency (target - general - direct dependecies) and all works OK, but categories. A category defined in static library is not working in app. So my question is how to add static library with some categories into other project? And in general, what is best practice to use in app project code from other projects?

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  • Oracle doesn't remove cursors after closing result set

    - by Vladimir
    Note: we reuse single connection. ************************************************ public Connection connection() {                try {            if ((connection == null) || (connection.isClosed()))            {               if (connection!=null) log.severe("Connection was closed !");                connection = DriverManager.getConnection(jdbcURL, username, password);            }        } catch (SQLException e) {            log.severe("can't connect: " + e.getMessage());        }        return connection;            } ************************************************** public IngisObject[] select(String query, String idColumnName, String[] columns) { Connection con = connection(); Vector<IngisObject> objects = new Vector<IngisObject>(); try {     Statement stmt = con.createStatement();     String sql = query;     ResultSet rs =stmt.executeQuery(sql);//oracle increases cursors count here     while(rs.next()) {        IngisObject o = new IngisObject("New Result");        o.setIdColumnName(idColumnName);                    o.setDatabase(this);        for(String column: columns) o.attrs().put(column, rs.getObject(column));        objects.add(o);        }     rs.close();// oracle don't decrease cursor count here, while it's expected     stmt.close();     } catch (SQLException ex) {     System.out.println(query);     ex.printStackTrace(); }

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