topic Re: Activiti Border Timer Events in Alfresco Archive

Activiti Border Timer Events

coner — Thu, 21 Jul 2011 21:55:06 GMT

Activiti 5.6, Eclipse PluginI have been having trouble creating border timer events successfully.My model is a simple diagram with 2 service tasks, they only have System.out.println's inside of them.I have been trying to setup the diagram such that the first event executes, and if it takes > 3 se

Re: Activiti Border Timer Events

coner — Mon, 25 Jul 2011 14:30:25 GMT

so i've had to resort to using the following model to allow for timing:

start -> doWork -> sleep() -> exclusiveGate -> exit
^———————–|

where the exclusiveGate will always select the branch to go back to the doWork serviceTask.

Re: Activiti Border Timer Events

mathiasd — Wed, 21 Sep 2011 15:14:33 GMT

Up !
I don't understand your solution. I'm having the same problem, I think I misunderstood the boundary timer event :

Start-event -> Script task containing a telnet request -> End-event

I put the following boundary event :

<boundaryEvent attachedToRef="telnetTask" cancelActivity="true" id="timer">
         <timerEventDefinition id="_theTimer">
            <timeDuration id="_theTimerDuration" xsi:type="tFormalExpression">PT1S</timeDuration>
         </timerEventDefinition>
      </boundaryEvent>

This boundary event is linked with a simple script task which print "Timeout", then it goes on an end-event.
My fake-telnet-server send a response 5 seconds after it receives the request, so the workflow should go in "Timeout" no ?

Instead of printing "Timeout", the workflow ends normally (after 5 seconds) then it prints :

GRAVE: Error while closing command context
java.lang.NullPointerException
 at org.activiti.engine.impl.jobexecutor.TimerExecuteNestedActivityJobHandler.execute(TimerExecuteNestedActivityJobHandler.java:39)
 at org.activiti.engine.impl.persistence.entity.JobEntity.execute(JobEntity.java:78)
 at org.activiti.engine.impl.persistence.entity.TimerEntity.execute(TimerEntity.java:62)
 at org.activiti.engine.impl.cmd.ExecuteJobsCmd.execute(ExecuteJobsCmd.java:58)
        …

What's wrong here ?

EDIT :

Actually now it writes "Timeout" after 1 second, but still got the nullPointerException. Plus, if I put a while(true); in my script, the timer doesn't work anymore (the flow gets stucked in the script task).

Re: Activiti Border Timer Events

ronald_van_kuij — Wed, 21 Sep 2011 16:56:42 GMT

Wrong forum…

Re: Activiti Border Timer Events

mathiasd — Thu, 22 Sep 2011 07:31:28 GMT

Could someone moves this subject to the right forum ?

Re: Activiti Border Timer Events

mathiasd — Thu, 22 Sep 2011 08:28:28 GMT

Subject is now here : http://forums.activiti.org/en/viewtopic.php?f=6&t=2454