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Re: Resources Handling on TaskClient in JBPM5
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created by <a href="http://community.jboss.org/people/andy.yeung">Andy Yeung</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/635631#635631">View the full discussion</a>
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<div class="jive-rendered-content"><p>I have trace the code in CommandBasedWSHumanTaskHandler. I find that the KnowledgeRuntime pass in constructor is used by the callback handler in GetCompletedTaskResponseHandler and GetResultContentResponseHandler only. I remove that in constructor and add method registerHumanTaskSession(Long pTaskId, KnowledgeRuntime pSession) and deregisterHumanTaskSession(Long pTaskId) in it. Before I call TaskClient.completeTask, I first registerr the task id and correponding session in the CommandBasedWSHumanTaskHandler. In the callback, I change session.getWorkItemManager().completeWorkItem(workItemId, results) to sessionLookup.get(task.getId()).getWorkItemManager().completeWorkItem(workItemId, results);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>In this way I can share the TaskClient and BlockingComamndBasedWSHumanTaskHandler by multiple process instance.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Also in the connect method,</p><p>I configure a flag and only let the registerForEvent execute once only. Otherwise multiple callback will be triggered since executeWorkItem call connect method implicitly.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I have tested this under 10 concurrent thread and seems having no problem in this way. But I am not sure if using a single TaskClient in BlockingCommandBasedWSHumanTaskHandler amongs all process instance affects performance.</p></div>
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