topic Re: CDI BusinessProcessEvent @Observer, detecting ProcessInstance start in Alfresco Archive

CDI BusinessProcessEvent @Observer, detecting ProcessInstance start

mason — Sat, 31 Aug 2013 16:54:01 GMT

Hello all. I am using the Activiti-CDI module, a CDI observer, @Observes BusinessProcessEvent businessProcessEvent. All of that is working perfectly. I would like to be able to run some code when a ProcessInstance is started or before it's destroyed. I've been trying to figure out a way to see w

Re: CDI BusinessProcessEvent @Observer, detecting ProcessInstance start

mason — Sat, 31 Aug 2013 19:36:19 GMT

I tried to inject the Task, as per the manual, using @Inject Task task, to see if I could get the current node from that, Now I get the error
<code>
Servlet.service() for servlet Faces Servlet threw exception: org.activiti.cdi.ActivitiCdiException: Cannot work with tasks in an activiti command.
at org.activiti.cdi.impl.context.DefaultContextAssociationManager.getTask(DefaultContextAssociationManager.java:235) [activiti-cdi-5.13.jar:]
at org.activiti.cdi.BusinessProcess.getTask(BusinessProcess.java:467) [activiti-cdi-5.13.jar:]
at org.activiti.cdi.CurrentProcessInstance.getTask(CurrentProcessInstance.java:99) [activiti-cdi-5.13.jar:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_32]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [rt.jar:1.6.0_32]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_32]
</code>

Re: CDI BusinessProcessEvent @Observer, detecting ProcessInstance start

mason — Sat, 31 Aug 2013 19:55:36 GMT

I found a way to do it, but it's a bit messy. Please let me know if there is a cleaner way to do this. Thanks!

<code>
public void onProcessEvent(@Observes BusinessProcessEvent businessProcessEvent, ProcessInstance pi) {
ExecutionEntity ee = (ExecutionEntity) pi;
   if (null != ee) {
     ActivityImpl ai = ee.getActivity();
   if ("start".equals(businessProcessEvent.getType().getTypeName()) && ai.getActivityBehavior().getClass().equals(NoneStartEventActivityBehavior.class))
    createProcessInstance(businessProcessEvent, pi);
   if ("end".equals(businessProcessEvent.getType().getTypeName()) && ai.getActivityBehavior().getClass().equals(NoneEndEventActivityBehavior.class))
    endProcessInstance(businessProcessEvent, pi);
   }
}
</code>

Re: CDI BusinessProcessEvent @Observer, detecting ProcessInstance start

paulo1 — Tue, 18 Feb 2014 18:58:50 GMT

Does it work for tomcat7?