1:49 a.m.
vinayak Bhadage [https://community.jboss.org/people/vinayakpict] created the discussion
"which JMS based human task work item handler need to use ?"
To view the discussion, visit: https://community.jboss.org/message/810199#810199
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hi,
I want to user JMSTaskServer as transporter between JBPM 5.4 process engine and
TaskClient.
Serever is initilized as:
Properties serverProperties = new Properties();
serverProperties.setProperty("JMSTaskServer.connectionFactory",
"ConnectionFactory");
serverProperties.setProperty("JMSTaskServer.transacted",
"true");
serverProperties.setProperty("JMSTaskServer.acknowledgeMode",
"AUTO_ACKNOWLEDGE");
serverProperties.setProperty("JMSTaskServer.queueName",
"tasksQueue");
serverProperties.setProperty("JMSTaskServer.responseQueueName",
"tasksResponseQueue");
try {
this.server = new JMSTaskServer(taskService, serverProperties, new
InitialContext());
} catch (NamingException e1) {
e1.printStackTrace();
}
thread = new Thread(server);
thread.start();
The Task client for JMS is as :
public static TaskService getTaskClient() {
Properties clientProperties = new Properties();
clientProperties.setProperty("JMSTaskClient.connectionFactory",
"ConnectionFactory");
clientProperties.setProperty("JMSTaskClient.transactedQueue",
"true");
clientProperties.setProperty("JMSTaskClient.acknowledgeMode",
"AUTO_ACKNOWLEDGE");
clientProperties.setProperty("JMSTaskClient.queueName",
"tasksQueue");
clientProperties.setProperty("JMSTaskClient.responseQueueName",
"tasksResponseQueue");
TaskService client = null;
try {
client = new SyncTaskServiceWrapper(new TaskClient(new
JMSTaskClientConnector( UUID.randomUUID().toString() +
"WSThroughJMSHumanTaskHandler" , new JMSTaskClientHandler(
SystemEventListenerFactory.getSystemEventListener()),
clientProperties, new InitialContext())));
} catch (NamingException e) {
e.printStackTrace();
}
return client;
}
When I do the TaskSummary look up it works fine.
But when i start the new process instance which having human task it fails.
so which human task work item handler need to use.
I have tried below but does not work
CommandBasedHornetQWSHumanTaskHandler wsHumanTaskHandler = new
CommandBasedHornetQWSHumanTaskHandler(knowledgeSession);
wsHumanTaskHandler.setClient(getTaskClientInstance());
wsHumanTaskHandler.setConnection("127.0.0.1", 5445);
knowledgeSession.getWorkItemManager().registerWorkItemHandler("Human
Task", wsHumanTaskHandler);
This is CommandBasedHornetQWSHumanTaskHandler deprecated class but I have no clue which
one need use.
It is giving following error :
Caused by: java.lang.RuntimeException: Error creating message
at
org.jbpm.task.service.jms.JMSTaskClientConnector.write(JMSTaskClientConnector.java:152)
[jbpm-human-task-jms-5.4.0.Final.jar:5.4.0.Final]
at org.jbpm.task.service.TaskClient.registerForEvent(TaskClient.java:623)
[jbpm-human-task-core-5.4.0.Final.jar:5.4.0.Final]
at
org.jbpm.task.service.hornetq.CommandBasedHornetQWSHumanTaskHandler.connect(CommandBasedHornetQWSHumanTaskHandler.java:103)
[jbpm-human-tas
k-hornetq-5.4.0.Final.jar:5.4.0.Final]
at
org.jbpm.task.service.hornetq.CommandBasedHornetQWSHumanTaskHandler.executeWorkItem(CommandBasedHornetQWSHumanTaskHandler.java:111)
[jbpm-h
uman-task-hornetq-5.4.0.Final.jar:5.4.0.Final]
at
org.drools.persistence.jpa.processinstance.JPAWorkItemManager.internalExecuteWorkItem(JPAWorkItemManager.java:55)
[drools-persistence-jpa-5
.5.0.Final.jar:5.5.0.Final]
at
org.jbpm.workflow.instance.node.WorkItemNodeInstance.internalTrigger(WorkItemNodeInstance.java:107)
[jbpm-flow-5.4.0.Final.jar:5.4.0.Final]
at
org.jbpm.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:126)
[jbpm-flow-5.4.0.Final.jar:5.4.0.Final]
... 42 more
Caused by: java.lang.NullPointerException
at
org.jbpm.task.service.jms.JMSTaskClientConnector.write(JMSTaskClientConnector.java:126)
[jbpm-human-task-jms-5.4.0.Final.jar:5.4.0.Final]
... 48 more
Please help me ....
Thanks & regards,
-vinayak
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