topic Re: Multi-instance Sub-Process, cancel specific instance in Alfresco Archive

Multi-instance Sub-Process, cancel specific instance

edgarjoao — Wed, 07 Oct 2015 04:26:02 GMT

Hi,I do have a Multi-instance sub-process, I need cancel a specific instance for this Multi instance subprocess.I have a Receive Task with a SignalThrowEvent and boundarysignal for catch the signal event, when I send a signal event it calls every instance into my Multi-instance sub-process.What can

Re: Multi-instance Sub-Process, cancel specific instance

martin_grofcik — Wed, 07 Oct 2015 06:42:02 GMT

Hi Edgar,

I created jUnit template branch, based on your test:
https://github.com/martin-grofcik/activiti-unit-test-template/tree/support/cancel_specific_instance

there is still an exception:
org.activiti.engine.ActivitiException: couldn't instantiate class com.demo.delegate.StartSubProcessListenerCould you show your issue there please?

Regards
Martin

Re: Multi-instance Sub-Process, cancel specific instance

edgarjoao — Wed, 07 Oct 2015 19:51:26 GMT

Hi Martin,
I did initial setup, regarding the issue that you send me, this is because I forgot remove my own dependencies.
Please remove below code from xml model file please.

<extensionElements>
<activiti:executionListener event="start" class="com.demo.delegate.StartSubProcessListener"></activiti:executionListener>
</extensionElements>

What do I need to do if I want to push some commits in this project?

Thanks you

Re: Multi-instance Sub-Process, cancel specific instance

edgarjoao — Wed, 07 Oct 2015 19:53:00 GMT

Please remove below listener from the XML
com.demo.delegate.StartSubProcessListener

Re: Multi-instance Sub-Process, cancel specific instance

martin_grofcik — Thu, 08 Oct 2015 08:02:20 GMT

Hi,
I removed StartSubProcessListener listener and test has passed.
Could you create failing test?

Regards
Martin

Re: Multi-instance Sub-Process, cancel specific instance

edgarjoao — Fri, 09 Oct 2015 03:54:46 GMT

Hi Martin,
I didn't found the way so push my commit, but here you are the fail test.

Thanks

Re: Multi-instance Sub-Process, cancel specific instance

edgarjoao — Fri, 09 Oct 2015 04:03:13 GMT

Basically I just want to accomplish this:

1. Service Request Process with multiple activities in there.
2. Service Request Process must be cancelled any time.
3. Each activity from the subprocess might be cancelled any time of the subprocess.

Example:
I have a Service Request with 5 activities in there, after some time I need cancel just one of those activities not all of them.
Once I cancel one activity I will have just 4 at this time.

Re: Multi-instance Sub-Process, cancel specific instance

martin_grofcik — Fri, 09 Oct 2015 06:24:34 GMT

Hi,

push commit -> Create account on github, fork jUnit template project and create pull request.

I took your test. Both tests are passing.

regards
Martin

Re: Multi-instance Sub-Process, cancel specific instance

edgarjoao — Tue, 13 Oct 2015 03:30:13 GMT

It's weird because I'm still getting an error

Tests run: 2, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 6.909 sec <<< FAILURE!
cancelFailTaskProcess(org.activiti.MyUnitTest) Time elapsed: 1.54 sec <<< FAILURE!
java.lang.AssertionError: expected:<3> but was:<0>

Re: Multi-instance Sub-Process, cancel specific instance

martin_grofcik — Wed, 14 Oct 2015 09:33:34 GMT

Hi,

Sorry It was my fault, I did not update project. I am able to reproduce the issue. I think that you are right (there should be only one execution signalled).
I tried to reproduce the issue in the simpler jUnit test and it has passed.
https://github.com/martin-grofcik/Activiti/tree/signal_one_execution

I am sorry, but I can not spend more time on this issue….. .

Regards
Martin

Re: Multi-instance Sub-Process, cancel specific instance

edgarjoao — Thu, 15 Oct 2015 02:26:09 GMT

Hi Martin,
Is there a way to send cancel signal using subprocess execution id instead of execution id of the Task?

Edgar

Re: Multi-instance Sub-Process, cancel specific instance

edgarjoao — Fri, 16 Oct 2015 15:32:22 GMT

Any comments?

Re: Multi-instance Sub-Process, cancel specific instance

edgarjoao — Tue, 20 Oct 2015 03:53:23 GMT

Same issue trying from API Rest

GET http://localhost:8080/activiti-rest/service/runtime/executions?activityId=receivetask4&processInstanceId=5

PUT http://localhost:8080/activiti-rest/service/runtime/executions/109
       {
          "action":"signal"
       }

Result: Cancel all sub instances

Is there a workaround for this??

Re: Multi-instance Sub-Process, cancel specific instance

edgarjoao — Tue, 20 Oct 2015 06:39:56 GMT

Seems like the unique way to accomplish this is moving from sub-process multi to Activity-multi.

Re: Multi-instance Sub-Process, cancel specific instance

jbarrez — Tue, 20 Oct 2015 18:25:13 GMT

Thanks for the excellent unit test. Trying to figure out what was happening was quite challenging.

So you've got 6 Multi-Instance subprocesses going one. And then you fire a signal. The problem is that ALL your boundary signal events listen to that particular signal event. The scope of the signal is the process instance, so everybody listens. That is why ALL the subprocesses get destroyed (all the boundary events listen), and why you are getting back that all subprocesses are gone instead of the one you expected.

So you probably have to remodel your process … maybe the receive task needs to be moved to _inside_ the 3th subprocess … and it goes to an error event then that gets caught on the boundary?

Re: Multi-instance Sub-Process, cancel specific instance

edgarjoao — Wed, 21 Oct 2015 04:52:07 GMT

I have had to remodel my process, using an Call Activity instead of nested subprocess.
I'll post the update once I finish, that's was the solution.

Thanks guys