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ProcessEventListener methods executed twice
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created by <a href="http://community.jboss.org/people/slelarge">Sebastien Lelarge</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/632356#632356">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I am playing with ProcessEventListener implementation and I have the feeling that methods are executed twice for the same Node.</p><p>For now, I am just tracing a message when a method is triggered and I get it twice in the log file !</p><p>My goal is to fire rules when I reach a Rule Task Node because I have issues if I fireAllRules at process startup...</p><p>What's wrong ?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Here's how I initialize the ksession</p><p>{code}</p><p>ksession =  JPAKnowledgeService.newStatefulKnowledgeSession(base, kconfig, </p><p>JPAWorkingMemoryDbLogger wkfLogger = new JPAWorkingMemoryDbLogger(ksession);</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>ksession.getWorkItemManager().registerWorkItemHandler("Human Task", new CommandBasedWSHumanTaskHandler(ksession));</p><p>            </p><p>ksession.addEventListener(new JbpmProcessEventListener(ksession));</p><p>{code}</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>here's the code of my EventListener:</p><p>{code}</p><p> import org.drools.event.process.ProcessCompletedEvent;</p><p>import org.drools.event.process.ProcessEventListener;</p><p>import org.drools.event.process.ProcessNodeLeftEvent;</p><p>import org.drools.event.process.ProcessNodeTriggeredEvent;</p><p>import org.drools.event.process.ProcessStartedEvent;</p><p>import org.drools.event.process.ProcessVariableChangedEvent;</p><p>import org.drools.runtime.StatefulKnowledgeSession;</p><p>import org.jbpm.workflow.core.node.RuleSetNode;</p><p>import org.slf4j.Logger;</p><p>import org.slf4j.LoggerFactory;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>public class JbpmProcessEventListener implements ProcessEventListener {</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>                private StatefulKnowledgeSession session;</p><p>                private static Logger logger = LoggerFactory.getLogger(JbpmProcessEventListener.class);</p><p>                </p><p>                public JbpmProcessEventListener(StatefulKnowledgeSession ksession){</p><p>                               session = ksession;</p><p>                }</p><p>                </p><p>                public void beforeVariableChanged(ProcessVariableChangedEvent event) {</p><p>                }</p><p>                </p><p>                public void beforeProcessStarted(ProcessStartedEvent event) {</p><p>                }</p><p>                </p><p>                public void beforeProcessCompleted(ProcessCompletedEvent event) {</p><p>                }</p><p>                </p><p>                public void beforeNodeTriggered(ProcessNodeTriggeredEvent event) {</p><p>                    </p><p>                    logger.debug("beforeNodeTriggered: " + event.getNodeInstance().getNode().getClass());</p><p>                    logger.debug("beforeNodeTriggered: " + event.getNodeInstance().getNode().getName());</p><p>                    if (event.getNodeInstance().getNode() instanceof RuleSetNode) {</p><p>                        session.fireAllRules();</p><p>                    }</p><p>                }</p><p>                </p><p>                public void beforeNodeLeft(ProcessNodeLeftEvent event) {</p><p>                 }</p><p>                </p><p>                public void afterVariableChanged(ProcessVariableChangedEvent event) {</p><p>                }</p><p>                </p><p>                public void afterProcessStarted(ProcessStartedEvent event) {</p><p>                }</p><p>                </p><p>                public void afterProcessCompleted(ProcessCompletedEvent event) {</p><p>                }</p><p>                </p><p>                public void afterNodeTriggered(ProcessNodeTriggeredEvent event) {</p><p>                }</p><p>                </p><p>                public void afterNodeLeft(ProcessNodeLeftEvent event) {</p><p>                }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>}</p><p>{code}</p></div>
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