[jBPM] - Receive Task: Retrieving the Message referred by Message ref.
by Rahul Agrawal
Rahul Agrawal [https://community.jboss.org/people/rahulamt] created the discussion
"Receive Task: Retrieving the Message referred by Message ref."
To view the discussion, visit: https://community.jboss.org/message/806161#806161
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For the messageRef Attribute of receive task BPMN2.0 Specification says
"A Message for the messageRef attribute MAY be entered. This indicates that the Message will be received by the Task. The Message in this context is equivalent to an in-only message pattern (Web service). One (1) or more corresponding incoming Message Flows MAY be shown on the diagram. However, the display of the Message Flows is NOT REQUIRED. The Message is applied to all incoming Message Flows, but can arrive for only one (1) of the incoming Message Flows for a single instance of the Task."
While running a process with receive task(RT) which receives a message RTM, when the exeuction flow comes to workitem handler the parameters present in the workItem are MessageId and MessageType.
parameters{MessageId=, MessageType=}]. How will I be able to get the actual messge with this Id. Shouldn't the process engine pass me the actual message? Shouldn't the message remain with processInstance?
Please help!!!
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11 years, 1 month
[JBoss Remoting] - SSL bisocket socketWrite0() hangs, while holding Messaging Post Office lock (on a network failure)
by Todd Sandor
Todd Sandor [https://community.jboss.org/people/toddler] created the discussion
"SSL bisocket socketWrite0() hangs, while holding Messaging Post Office lock (on a network failure)"
To view the discussion, visit: https://community.jboss.org/message/754327#754327
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Hi ...
We are using EAP5.1.1 (remoting-2-4-5.SP2) and experience a problem when using
SSL and there is a network hard failure (e.g. ethernet cable pulled), a socketWrite0() hangs
while holding a Messaging Post Office lock (readLock()) - this hangs JMS...(many threads
need PostOffice). Thread dump below. It is difficult to reproduce.
A Solaris 10 environment.
This problem has only been observed when SSL is used.
In our remoting-bisocket-service.xml file, we use:
<attribute isParam="true" name="writeTimeout">30000</attribute>
Have been told "writeTimeout" is broken when SSL is being used.
It has been suggested, for SSL, we change the configuration to turn on the check_connection parameter:
<attribute isParam="true" name="socket.check_connection">true</attribute>
But my concern is:
* results in an extra round-trip I/O (not good for a variety of reasons - throughput, remote clients with high latency connecitons, etc.).
* potential to hit other problems with check_connections enabled. e.g. found this:
https://community.jboss.org/message/369442#369442 https://community.jboss.org/message/369442
Has anyone experienced this problem and/or know a solution (other then using
"socket.check_connection") might be?
Searched and found a number of remoting issues on hard-network failure, but not this particular one...
Potentially Related Issue:
https://issues.jboss.org/browse/JBREM-1307 https://issues.jboss.org/browse/JBREM-1307
Thead Dump below:
2012.07.26 13:23:38 -0500 INFO [STDOUT] "WorkerThread#1[10.143.109.23:60321]" Id=74 RUNNABLE (in native)
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
at java.net.SocketOutputStream.write(SocketOutputStream.java:136)
at com.sun.net.ssl.internal.ssl.OutputRecord.writeBuffer(OutputRecord.java:297)
at com.sun.net.ssl.internal.ssl.OutputRecord.write(OutputRecord.java:286)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.writeRecordInternal(SSLSocketImpl.java:743)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:731)
at com.sun.net.ssl.internal.ssl.AppOutputStream.write(AppOutputStream.java:59)
- locked com.sun.net.ssl.internal.ssl.AppOutputStream@ac9224
at org.jboss.remoting.transport.socket.TimedOutputStream.write(TimedOutputStream.java:119)
at java.io.BufferedOutputStream.write(BufferedOutputStream.java:105)
- locked java.io.BufferedOutputStream@1aea5f0
at java.io.DataOutputStream.write(DataOutputStream.java:90)
- locked java.io.DataOutputStream@16e88df
at java.io.FilterOutputStream.write(FilterOutputStream.java:80)
at org.jboss.messaging.core.impl.message.MessageSupport.write(MessageSupport.java:387)
at org.jboss.jms.message.JBossMessage.write(JBossMessage.java:1069)
at org.jboss.jms.wireformat.ClientDelivery.write(ClientDelivery.java:91)
at org.jboss.jms.wireformat.JMSWireFormat.write(JMSWireFormat.java:237)
at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.versionedWrite(MicroSocketClientInvoker.java:1325)
at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.transport(MicroSocketClientInvoker.java:861)
at org.jboss.remoting.transport.bisocket.BisocketClientInvoker.transport(BisocketClientInvoker.java:470)
at org.jboss.remoting.MicroRemoteClientInvoker.invoke(MicroRemoteClientInvoker.java:169)
at org.jboss.remoting.Client.invoke(Client.java:2070)
at org.jboss.remoting.Client.invoke(Client.java:879)
at org.jboss.remoting.Client.invokeOneway(Client.java:928)
at org.jboss.remoting.callback.ServerInvokerCallbackHandler.handleCallback(ServerInvokerCallbackHandler.java:835)
at org.jboss.remoting.callback.ServerInvokerCallbackHandler.handleCallbackOneway(ServerInvokerCallbackHandler.java:708)
at org.jboss.jms.server.endpoint.ServerSessionEndpoint.performDelivery(ServerSessionEndpoint.java:1600)
at org.jboss.jms.server.endpoint.ServerSessionEndpoint.handleDelivery(ServerSessionEndpoint.java:1512)
- locked org.jboss.jms.server.endpoint.ServerSessionEndpoint@1105e96
at org.jboss.jms.server.endpoint.ServerConsumerEndpoint.handle(ServerConsumerEndpoint.java:353)
- locked java.lang.Object@1b1dde3
at org.jboss.messaging.core.impl.RoundRobinDistributor.handle(RoundRobinDistributor.java:119)
at org.jboss.messaging.core.impl.MessagingQueue$DistributorWrapper.handle(MessagingQueue.java:617)
at org.jboss.messaging.core.impl.ClusterRoundRobinDistributor.handle(ClusterRoundRobinDistributor.java:79)
at org.jboss.messaging.core.impl.ChannelSupport.deliverInternal(ChannelSupport.java:681)
at org.jboss.messaging.core.impl.MessagingQueue.deliverInternal(MessagingQueue.java:540)
at org.jboss.messaging.core.impl.ChannelSupport.handle(ChannelSupport.java:251)
- locked java.lang.Object@5e7463
at org.jboss.messaging.core.impl.postoffice.MessagingPostOffice.routeInternal(MessagingPostOffice.java:3133)
at org.jboss.messaging.core.impl.postoffice.MessagingPostOffice.route(MessagingPostOffice.java:956)
at org.jboss.jms.server.endpoint.ServerConnectionEndpoint.sendMessage(ServerConnectionEndpoint.java:794)
at org.jboss.jms.server.endpoint.ServerSessionEndpoint.send(ServerSessionEndpoint.java:435)
at org.jboss.jms.server.endpoint.advised.SessionAdvised.org$jboss$jms$server$endpoint$advised$SessionAdvised$send$aop(SessionAdvised.java:87)
at org.jboss.jms.server.endpoint.advised.SessionAdvised$send_7280680627620114891.invokeTarget(SessionAdvised$send_7280680627620114891.java)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:111)
at org.jboss.jms.server.container.SecurityAspect.handleSend(SecurityAspect.java:158)
at sun.reflect.GeneratedMethodAccessor224.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jboss.aop.advice.PerInstanceAdvice.invoke(PerInstanceAdvice.java:122)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
at com.timetra.nms.server.j2ee.jms.messaging.JBossMessagingServerInterceptor.handleSessionSend(JBossMessagingServerInterceptor.java:346)
at sun.reflect.GeneratedMethodAccessor223.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jboss.aop.advice.PerInstanceAdvice.invoke(PerInstanceAdvice.java:122)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
at org.jboss.jms.server.endpoint.advised.SessionAdvised.send(SessionAdvised.java)
at org.jboss.jms.wireformat.SessionSendRequest.serverInvoke(SessionSendRequest.java:95)
at org.jboss.jms.server.remoting.JMSServerInvocationHandler.invoke(JMSServerInvocationHandler.java:165)
at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:967)
at org.jboss.remoting.transport.socket.ServerThread.completeInvocation(ServerThread.java:791)
- locked org.jboss.remoting.transport.socket.ServerThread@465cc
at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:744)
at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:586)
at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:234)
Number of locked synchronizers = 1
- java.util.concurrent.locks.ReentrantLock$NonfairSync@12b4a3e
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11 years, 1 month
[jBPM] - How to build package in Guvnor with JBPM process that use user data types ?
by Anatoliy Kalenskiy
Anatoliy Kalenskiy [https://community.jboss.org/people/cybiks] created the discussion
"How to build package in Guvnor with JBPM process that use user data types ?"
To view the discussion, visit: https://community.jboss.org/message/754591#754591
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I have business process described in bpmn file. It has scriptTasks that use some project types.
<itemDefinition id="_stepItem" structureRef="project.model.Step" />
<itemDefinition id="_actionsItem" structureRef="java.util.Map" />
<process processType="Private" isExecutable="true" id="com.sample.id" name="EXAMPLE" tns:packageName="defaultPackage" tns:version="1" >
| | <extensionElements> |
| | <tns:import name="project.model.StepAction" /> |
| | <tns:import name="project.model.Step" /> |
| | </extensionElements> |
<!-- process variables -->
<property id="step" itemSubjectRef="_stepItem"/>
<property id="actions" itemSubjectRef="_actionsItem"/>
...
<scriptTask id="_2" name="1FakedStepAction" scriptFormat=" http://www.java.com/java http://www.java.com/java" >
<script>
try {
((StepAction)(actions.get("1StepAction"))).executeStepAction((Step)step); }
catch (Exception e) {
System.out.println("Exception 1StepAction: "+e);
}
</script>
</scriptTask>
...
In Java code I put
Map<String, Object> params = new HashMap<String, Object>();
params.put("step", <some real instance of Step>);
params.put("actions", <some actions map like 1StepAction -> real instance of StepAction>);
ksession.startProcess("com.sample.id", params)
It works fine when I put such file in class path and spring configuration uploads it from this file. I put it to Guvnor. And application successfully load such process from it and run.
But when I try to build package in Guvnor with such process it complains :
Unable to generate action invoker. project.model.Step cannot be resolved to a type
Process Compilation error project.model.Step cannot be resolved to a type
StepActioncannot be resolved to a type
So, how Guvnor can access to my types deployed in my project? Is it possible?
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11 years, 1 month
[JBoss Microcontainer] - Re: Custom ClassLoader
by Ales Justin
Ales Justin [https://community.jboss.org/people/alesj] created the discussion
"Re: Custom ClassLoader"
To view the discussion, visit: https://community.jboss.org/message/804929#804929
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>
> I guess the zero-roots CL (as you say) shares the domain of deployment's CL.
Can we somehow confirm this?
> Is that the reason why super.loadClass goes back to org.jboss.classloader.spi.base.BaseClassLoader ?
If 1st paragraph holds, then yes.
> Is there any thing wrong in what I did ? (I am able to get the breakpoint in loadClass method, and here the parent classloader is BaseClassLoader of jboss)
>From 10.000ft atm, no. :-)
> My war has few encrypted classes (which can be decrypted only if a hardware dongle is available using the ClassLoader provided by the hardware dongle). And now since we use JBoss, the encrypted classes are not been loaded. (In tomcat it was possible to set the system classloader : –Djava.system.class.loader in catalina.bat)
> I first tried to load then using translator (the previous post from me), but if I use translator, the plain bytecode is available in translator (after translator decrypts the encrypted class)
> So now I am trying to use this customClassLoader, and here use the ClassLoader provided the third party (the company which provides us the hardware dongle).
I don't see how translator is different from classloader.
In both cases you can see the actual bytecode.
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11 years, 1 month
