[jBPM] - Having problems in configuring jBPM persistence on AS 7.1.0 Final
by Vimal Kansal
Vimal Kansal [https://community.jboss.org/people/vimalkansal] created the discussion
"Having problems in configuring jBPM persistence on AS 7.1.0 Final"
To view the discussion, visit: https://community.jboss.org/message/738203#738203
--------------------------------------------------------------
Hi,
I am trying to configure jBPM 5.3 persistence configured and having troubles, any help will be gretaly appreciated. So here is what I am doing :
My use case involves building a JEE6 web app with jBPM 5.2 engine embedded in it.
I am using JBoss Developer Studio 5.0 Beta 3 to generate a JEE6 web app using one of the maven plugins. Once the app is generated, I have added dependencies on jbpm-bpmn2 and jbpm-persistence-jpa. I have also updated the persistence.xml file (please see the attached file). Note that I have 2 persistence units in it : one for application data and other for jbpm. When I deploy this application to AS 7.1.0, (mvn clean package jboss-as:deploy), I get the following persistence exception :
=========================================================================================================================================
23:32:43,335 INFO [org.hibernate.hql.internal.ast.ASTQueryTranslatorFactory] (MSC service thread 1-2) HHH000397: Using ASTQueryTranslatorFactory
23:32:43,341 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-4) MSC000001: Failed to start service jboss.persistenceunit."jbpmDemo.war#org.jbpm.persistence.jpa": org.jboss.msc.service.StartException in service jboss.persistenceunit."jbpmDemo.war#org.jbpm.persistence.jpa": Failed to start service
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1767) [jboss-msc-1.0.2.GA-redhat-1.jar:1.0.2.GA-redhat-1]
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [rt.jar:1.6.0_31]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [rt.jar:1.6.0_31]
at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_31]
Caused by: javax.persistence.PersistenceException: [PersistenceUnit: org.jbpm.persistence.jpa] class or package not found
at org.hibernate.ejb.Ejb3Configuration.addNamedAnnotatedClasses(Ejb3Configuration.java:1401)
at org.hibernate.ejb.Ejb3Configuration.addClassesToSessionFactory(Ejb3Configuration.java:1184)
at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:1048)
at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:693)
at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:73)
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.createContainerEntityManagerFactory(PersistenceUnitServiceImpl.java:162)
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.start(PersistenceUnitServiceImpl.java:85)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) [jboss-msc-1.0.2.GA-redhat-1.jar:1.0.2.GA-redhat-1]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) [jboss-msc-1.0.2.GA-redhat-1.jar:1.0.2.GA-redhat-1]
... 3 more
Caused by: java.lang.ClassNotFoundException: org.jbpm.process.audit.ProcessInstanceLog from [Module "org.hibernate:main" from local module loader @23e5d1 (roots: /home/vimal/Apps/jboss-eap-6.0/modules)]
at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190)
at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:468)
at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:456)
at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:423)
at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:398)
at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:120)
at java.lang.Class.forName0(Native Method) [rt.jar:1.6.0_31]
at java.lang.Class.forName(Class.java:247) [rt.jar:1.6.0_31]
at org.hibernate.internal.util.ReflectHelper.classForName(ReflectHelper.java:170)
at org.hibernate.ejb.Ejb3Configuration.classForName(Ejb3Configuration.java:1318)
at org.hibernate.ejb.Ejb3Configuration.addNamedAnnotatedClasses(Ejb3Configuration.java:1390)
... 11 more
===================================================================================================================================
Can somebody please help.
Thx
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13 years, 6 months
[JBoss Tools] - Debugger Stopped Working
by Stephen Seltzer
Stephen Seltzer [https://community.jboss.org/people/steve_np] created the discussion
"Debugger Stopped Working"
To view the discussion, visit: https://community.jboss.org/message/722161#722161
--------------------------------------------------------------
To start, my system is:
Windows 7 (64bit)
Eclipse Indigo (Build id: 20110916-0149)
JBossASTools (Version: 2.3.0.v20111213-1423-H61-M5)
JBoss AS 7.1
I have had this configuration up and running for over a month. Suddenly starting yesterday I have been unable to start up my system in debug. I have made no significant changes to my system (save for the installation of TOAD but it was still working for a while after that was installed). It will start fine in run mode and it starts in < 10 seconds. When I start using the debugger, it takes > 1:30 and then fails in the end. The last couple of lines from server.log are:
10:11:11,188 INFO [org.jboss.web] (MSC service thread 1-2) JBAS018210: Registering web context: /speed2
10:11:11,207 DEBUG [org.apache.jasper.servlet.JspServlet] (MSC service thread 1-3) JspServlet.destroy()
10:11:11,214 DEBUG [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/speed2]] (MSC service thread 1-3) Stopping filters
10:11:11,220 DEBUG [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/speed2]] (MSC service thread 1-3) Stopping filter 'com.newpig.speed2.filters.NoCacheFilter'
10:11:11,227 DEBUG [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/speed2]] (MSC service thread 1-3) Stopping filter 'MyFacesExtensionsFilter'
10:11:11,238 DEBUG [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/speed2]] (MSC service thread 1-3) Stopping filter 'noCacheFilter'
10:11:11,244 DEBUG [org.apache.catalina.session.ManagerBase] (MSC service thread 1-3) Unloading persisted sessions
10:11:11,250 DEBUG [org.apache.catalina.core.StandardContext] (MSC service thread 1-3) Sending application stop events
10:11:11,255 FINE [javax.enterprise.resource.webcontainer.jsf.config] (MSC service thread 1-3) ConfigureListener.contextDestroyed(null)
10:11:11,271 DEBUG [org.apache.catalina.core.StandardContext] (MSC service thread 1-3) Processing standard container shutdown
10:11:11,277 DEBUG [org.apache.catalina.startup.ContextConfig] (MSC service thread 1-3) ContextConfig: Processing STOP
10:11:11,291 DEBUG [org.apache.catalina.core.StandardContext] (MSC service thread 1-3) resetContext null
10:11:11,296 DEBUG [org.apache.catalina.core.StandardContext] (MSC service thread 1-3) Stopping complete
10:11:13,150 ERROR [org.jboss.as] (MSC service thread 1-7) JBAS015875: JBoss AS 7.1.0.Final "Thunder" started (with errors) in 93195ms - Started 407 of 481 services (1 services failed or missing dependencies, 72 services are passive or on-demand)
10:11:16,251 INFO [org.jboss.as.server.deployment] (MSC service thread 1-5) JBAS015877: Stopped deployment speed2.war in 34435ms
I have attached a zip containing server.log files from starting with a plain run and starting in debug to show the success/failure. Also, I bumped my logging up to DEBUG to give a little more information.
Any assistance getting my debugging back on line sure would be appreciated!
Steve
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13 years, 6 months
[jBPM] - JBPM-Console Error org.jbpm.task.service.mina.MinaTaskClientConnector.write(MinaTaskClientConnector.java:118) when opening task form on external port.
by renez
renez [https://community.jboss.org/people/renez] created the discussion
"JBPM-Console Error org.jbpm.task.service.mina.MinaTaskClientConnector.write(MinaTaskClientConnector.java:118) when opening task form on external port."
To view the discussion, visit: https://community.jboss.org/message/725743#725743
--------------------------------------------------------------
Hi,
I create for my process a task form by guvnor/ designer. When I run my process using the local port http://localhost:8080/jbpm-console/ http://localhost:8080/jbpm-console/ everything works fine:
https://community.jboss.org/servlet/JiveServlet/showImage/2-725743-18261/... https://community.jboss.org/servlet/JiveServlet/downloadImage/2-725743-18...
But when I try to run the process on my external test server I got a strange behaviour:
* I get asked for credentials again
* When I enter them, I receive an error
org.jboss.resteasy.spi.UnhandledException: java.lang.NullPointerException
org.jboss.resteasy.core.SynchronousDispatcher.unwrapException(SynchronousDispatcher.java:345)
org.jboss.resteasy.core.SynchronousDispatcher.handleApplicationException(SynchronousDispatcher.java:321)
org.jboss.resteasy.core.SynchronousDispatcher.handleException(SynchronousDispatcher.java:214)
org.jboss.resteasy.core.SynchronousDispatcher.handleInvokerException(SynchronousDispatcher.java:190)
org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:534)
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:496)
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119)
org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208)
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55)
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50)
javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
org.jboss.bpm.console.server.util.GWTJsonFilter.doFilter(GWTJsonFilter.java:59)
root cause
java.lang.NullPointerException
org.jbpm.task.service.mina.MinaTaskClientConnector.write(MinaTaskClientConnector.java:118)
org.jbpm.task.service.TaskClient.getTask(TaskClient.java:83)
org.jbpm.integration.console.forms.TaskFormDispatcher.provideForm(TaskFormDispatcher.java:73)
org.jbpm.integration.console.forms.FormDispatcherComposite.provideForm(FormDispatcherComposite.java:50)
org.jboss.bpm.console.server.FormProcessingFacade.provideForm(FormProcessingFacade.java:205)
org.jboss.bpm.console.server.FormProcessingFacade.renderTaskUI(FormProcessingFacade.java:127)
sun.reflect.GeneratedMethodAccessor161.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:601)
org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:140)
org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:255)
org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:220)
org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:209)
org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:519)
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:496)
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119)
org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208)
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55)
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50)
javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
org.jboss.bpm.console.server.util.GWTJsonFilter.doFilter(GWTJsonFilter.java:59)
https://community.jboss.org/servlet/JiveServlet/showImage/2-725743-18263/... https://community.jboss.org/servlet/JiveServlet/downloadImage/2-725743-18...
I read this posts: https://community.jboss.org/message/643297#643297 https://community.jboss.org/message/643297#643297 but I don't have whitespaces in the task name.
Any suggestions?
Thank you,
René
--------------------------------------------------------------
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13 years, 6 months
[Javassist] - How to manage instrumentation in application deployed on JBoss?
by adesanctis
adesanctis [https://community.jboss.org/people/adesanctis] created the discussion
"How to manage instrumentation in application deployed on JBoss?"
To view the discussion, visit: https://community.jboss.org/message/715422#715422
--------------------------------------------------------------
Hello everybody,
I'm trying to instrument classes in JBoss Enterprise application on JBoss EA5.0
Using this code:
| | public byte[] transform(ClassLoader loader, |
| | String className, |
| | Class classBeingRedefined, |
| | ProtectionDomain protectionDomain, |
| | byte[] classfileBuffer) throws IllegalClassFormatException { |
| | // The class name contains slashes instead of periods, so use transform those to |
| | // dots for readability within the trace |
| | String dotClassName = className.replace('/', '.'); |
| | if (className.startsWith("$")) { |
| | return null; |
| | } |
| | // Only instrument a class once |
| | if (instrumentedClasses.contains(className)) { |
| | return null; |
| | } |
| | instrumentedClasses.add(className); |
| | // Skip in the list of class prefixes to skip |
| | for (MethodSelector classToSkip : classesToSkip) { |
| | if (dotClassName.startsWith(classToSkip.getPackageName())) { |
| | return null; |
| | } |
| | } |
| | if (logger.isInfoEnabled()) { |
| | logger.info("Checking class: " + className); |
| | } |
| | |
| | try { |
| | classPool.insertClassPath(new ByteArrayClassPath(className, classfileBuffer)); |
| // | classPool.insertClassPath(new ClassClassPath(this.getClass())); |
| | |
| // | classPool.insertClassPath(new ClassClassPath(classBeingRedefined.getClass())); |
| | *CtClass cc = classPool.get(dotClassName);* |
| // | CtClass cc = classPool.makeClass(new ByteArrayInputStream(classfileBuffer)); | |
//
In bold line where exception is raised.
I suppose that arror is related to specific class loader used for load class.
The question is: how to manage classes independently from class loader used? Is there a way to manage all possible case when working on JBoss?
Thank you
Alessandro
09:37:59,040 ERROR [STDERR] javassist.NotFoundException: com.arjuna.ats.internal.jta.recovery.arjunacore.RecoveryXids
09:37:59,040 ERROR [STDERR] at javassist.ClassPool.get(ClassPool.java:436)
09:37:59,040 ERROR [STDERR] at by.concept.applicationtracer.AdvancedTransformer.transform(AdvancedTransformer.java:163)
09:37:59,040 ERROR [STDERR] at sun.instrument.TransformerManager.transform(TransformerManager.java:169)
09:37:59,040 ERROR [STDERR] at sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:365)
09:37:59,040 ERROR [STDERR] at java.lang.ClassLoader.defineClass1(Native Method)
09:37:59,040 ERROR [STDERR] at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
09:37:59,040 ERROR [STDERR] at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
09:37:59,040 ERROR [STDERR] at org.jboss.classloader.spi.base.BaseClassLoader.access$200(BaseClassLoader.java:67)
09:37:59,040 ERROR [STDERR] at org.jboss.classloader.spi.base.BaseClassLoader$2.run(BaseClassLoader.java:633)
09:37:59,040 ERROR [STDERR] at org.jboss.classloader.spi.base.BaseClassLoader$2.run(BaseClassLoader.java:592)
09:37:59,040 ERROR [STDERR] at java.security.AccessController.doPrivileged(Native Method)
09:37:59,040 ERROR [STDERR] at org.jboss.classloader.spi.base.BaseClassLoader.loadClassLocally(BaseClassLoader.java:591)
09:37:59,040 ERROR [STDERR] at org.jboss.classloader.spi.base.BaseClassLoader.loadClassLocally(BaseClassLoader.java:568)
09:37:59,040 ERROR [STDERR] at org.jboss.classloader.spi.base.BaseDelegateLoader.loadClass(BaseDelegateLoader.java:135)
09:37:59,040 ERROR [STDERR] at org.jboss.classloader.spi.filter.FilteredDelegateLoader.loadClass(FilteredDelegateLoader.java:131)
09:37:59,040 ERROR [STDERR] at org.jboss.classloader.spi.base.ClassLoadingTask$ThreadTask.run(ClassLoadingTask.java:455)
09:37:59,040 ERROR [STDERR] at org.jboss.classloader.spi.base.ClassLoaderManager.nextTask(ClassLoaderManager.java:267)
09:37:59,040 ERROR [STDERR] at org.jboss.classloader.spi.base.ClassLoaderManager.process(ClassLoaderManager.java:166)
09:37:59,040 ERROR [STDERR] at org.jboss.classloader.spi.base.BaseClassLoaderDomain.loadClass(BaseClassLoaderDomain.java:276)
09:37:59,040 ERROR [STDERR] at org.jboss.classloader.spi.base.BaseClassLoaderDomain.loadClass(BaseClassLoaderDomain.java:1138)
09:37:59,040 ERROR [STDERR] at org.jboss.classloader.spi.base.BaseClassLoader.loadClassFromDomain(BaseClassLoader.java:862)
09:37:59,040 ERROR [STDERR] at org.jboss.classloader.spi.base.BaseClassLoader.doLoadClass(BaseClassLoader.java:502)
09:37:59,040 ERROR [STDERR] at org.jboss.classloader.spi.base.BaseClassLoader.loadClass(BaseClassLoader.java:447)
--------------------------------------------------------------
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13 years, 6 months
[jBPM] - Persistence issue running jBPM 5.3 gwt-console-server on JBoss AS 7.1.1
by Brian O'Keefe
Brian O'Keefe [https://community.jboss.org/people/brianok] created the discussion
"Persistence issue running jBPM 5.3 gwt-console-server on JBoss AS 7.1.1"
To view the discussion, visit: https://community.jboss.org/message/739144#739144
--------------------------------------------------------------
Hi all,
Hopefully this is an easy issue, but I am trying to deploy gwt-console-server in JBoss AS 7.1.1 and I am getting the following error in the log (below) due to JPA it seems. I'm guessing that the duplicate import info on the first two lines is causing the failure, but I do not know why that is occurring. Any guesses?
Thanks,
Brian
15:13:41,383 INFO [org.hibernate.cfg.Configuration] (MSC service thread 1-2) HHH000071: Duplicate import: org.jbpm.persistence.processinstance.ProcessInstanceInfo -> org.jbpm.persistence.processinstance.ProcessInstanceInfo
15:13:41,399 INFO [org.hibernate.cfg.Configuration] (MSC service thread 1-2) HHH000071: Duplicate import: org.jbpm.persistence.processinstance.ProcessInstanceInfo -> ProcessInstanceInfo
15:13:41,399 ERROR [org.jboss.msc.service.fail] (MSC service thread 1-2) MSC00001: Failed to start service jboss.persistenceunit."jbpm-gwt-console-server.war#org.jbpm.persistence.jpa": org.jboss.msc.service.StartException in service jboss.persistenceunit."jbpm-gwt-console-server.war#org.jbpm.persistence.jpa": Failed to start service
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1767) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) [rt.jar:1.6.0_30]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [rt.jar:1.6.0_30]
at java.lang.Thread.run(Unknown Source) [rt.jar:1.6.0_30]
Caused by: javax.persistence.PersistenceException: [PersistenceUnit: org.jbpm.persistence.jpa] Unable to build EntityManagerFactory
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:914)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:889)
at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:73)
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.createContainerEntityManagerFactory(PersistenceUnitServiceImpl.java:162)
at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.start(PersistenceUnitServiceImpl.java:85)
at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1811) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1746) [jboss-msc-1.0.2.GA.jar:1.0.2.GA]
... 3 more
Caused by: org.hibernate.InvalidMappingException: Could not parse mapping document from input stream
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processHbmXml(Configuration.java:3380)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processHbmXmlQueue(Configuration.java:3369)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processMetadata(Configuration.java:3357)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1334)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1724)
at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:84)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:904)
... 9 more
Caused by: org.hibernate.DuplicateMappingException: Duplicate collection role mapping org.jbpm.persistence.processinstance.ProcessInstanceInfo.eventTypes
at org.hibernate.cfg.Configuration$MappingsImpl.addCollection(Configuration.java:2582)
at org.hibernate.cfg.HbmBinder.createClassProperties(HbmBinder.java:2139)
at org.hibernate.cfg.HbmBinder.createClassProperties(HbmBinder.java:2114)
at org.hibernate.cfg.HbmBinder.bindRootPersistentClassCommonValues(HbmBinder.java:405)
at org.hibernate.cfg.HbmBinder.bindRootClass(HbmBinder.java:320)
at org.hibernate.cfg.HbmBinder.bindRoot(HbmBinder.java:171)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processHbmXml(Configuration.java:3377)
... 15 more
--------------------------------------------------------------
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13 years, 6 months
[jBPM] - How to define result mapping or exit action that saves task owner
by jemmerling
jemmerling [https://community.jboss.org/people/jemmerling] created the discussion
"How to define result mapping or exit action that saves task owner"
To view the discussion, visit: https://community.jboss.org/message/648536#648536
--------------------------------------------------------------
Hi,
This should be simple for any non-novice, it was suggested before however without an example.
So I have a process variable and I want a particular task to store its owner into that variable (say its name is "task2owner"). Is there an expression for that, for example:
task2owner=#{taskOwner}
So if there is a standard expression for the task owner (the above is just a guess at what it might be) then this result mapping would allow subsequent tasks to determine who owned (and completed) task2.
Failing that, I could try defining an on exit action, using kcontext I can get the node instance which I think has a one-to-one correspondence to the task, however the node instance does not seem to have an attribute that explicitly identifies the owner. Perhaps the owner is a variable?
Any suggestion would be greatly appreciated.
Thanks!
--JE
--------------------------------------------------------------
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13 years, 6 months
[JBoss Messaging] - How to list or monitor messages in a Queue which is already under use
by Aneesh Sebastian
Aneesh Sebastian [https://community.jboss.org/people/aneeshsebastian] created the discussion
"How to list or monitor messages in a Queue which is already under use"
To view the discussion, visit: https://community.jboss.org/message/720125#720125
--------------------------------------------------------------
I have a requirement to monitor a JBoss messaging queue, where users should be able to delete posted messages dynamically. The application has a MDPOJO registered and is up and running at server start up.
My requirement is, users should be able to delete a posted message any time he wishes. I tried below proto codes :
*Option1*
public void listAllJMS_Messages()
{
try {
ObjectName objectName=new ObjectName("jboss.messaging.destination:name=XXX,service=Queue");
List ls = (List) server.invoke(objectName, "listMessages" , null, null);
List<javax.jms.Message> messages=(List<javax.jms.Message>)server.invoke(objectName, "listAllMessages" , null, null);
int count=0;
for(javax.jms.Message msg : messages) {
System.out.println((++count)+"t"+msg.getJMSMessageID());
if(msg.getJMSType() != null && msg.getJMSType().equalsIgnoreCase("Text")) {
TextMessage text = (TextMessage)msg;
System.out.println(text.getText());
}
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// System.out.println((++count)+"t"+msg.getText());
}
*Option2*
public void listMsg() {
String destinationName = "queue/XXX";
Context ic = null;
ConnectionFactory cf = null;
Connection connection = null;
try {
ic = getInitialContext();
cf = (ConnectionFactory)ic.lookup("/ConnectionFactory");
Queue queue = (Queue)ic.lookup(destinationName);
connection = cf.createConnection();
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
QueueBrowser qbrowser = session.createBrowser(queue);
Enumeration<?> qamsgs = qbrowser.getEnumeration();
while (qamsgs.hasMoreElements()){
Message msg = (Message)qamsgs.nextElement();
}
connection.start();
}
catch(Exception e)
{
System.out.println(e);
}
finally
{
if(ic != null)
{
try
{
ic.close();
}
catch(Exception e1)
{
System.out.println(e1);
}
}
}
}
In both the options,messages are getting listed in case of no message consumers at present.If have a live message consumer MDB, then list is returned as null.
I defintely need MDB consumer up and running.But still need to monitor messages.I should be able to do below :
1. List messages]
2. Delete a particular message
3. Change priority
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13 years, 7 months
