Getting execution listeners details for completed process instance

Flowable Engine
1

Hi,
I’m using below code for getting the above details before process is completed:

Process process = ProcessDefinitionUtil.getProcess( lFlowableProcessCancelledImpl.getProcessDefinitionId() );
process.getExecutionListeners() );

When I try this for already completed process instance, I get this error

image
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So, I want to know if there is any way I can retrieve execution listeners information for a completed process instance.

2

Hey @akki,

The error is not coming because you are getting the execution listeners. It is coming because you are using an internal API ProcessDefinitionUtil outside of a command context.

The correct way to do this is to use the RepositoryService.

e.g.

Process process = repositoryService.getBpmnModel(definitionId).getMainProcess()

or

Process process = repositoryService.getBpmnModel(definitionId).getProcess(processDefinitionKey)

Cheers,
Filip

1 Like
3

Hi @filiphr ,
Thanks for your response.
Yes, I’m able to get the process details with the code that you have shared but I don’t get the information from process that I was looking for.
I will try to briefly explain my use case.

User wants to be notified if a process is canceled and he wants a screen where he can configure related fields as well. Something like this

image
image1392×914 91.5 KB

There is an option to use the Event Listeners field in the stencil with id BPMNDiagram. But for now, I am using Execution Listeners end event since the user also wants a configurable screen like above.

So, when a user tries to cancel the process, I get the execution listener details from the Process, trigger cancel notification and set an empty arraylist in its executionListeners field. Also, I set an empty ArrayList to executionListeners field of Process when a process is completed, so that cancel notification is not sent when a process is completed. I do this when PROCESS_COMPLETED is dispatched.

The logic that you have shared fetches me the details if the process instance is not completed. But for a completed process instance, I get an empty list there.
I’m assuming the reason is that I cleared executionListeners field in PROCESS_COMPLETED event.

To meet this, as of now I’m extracting execution listeners from modelEditorJson using modelRepository.findByKeyAndType().get(0).getModelEditorJson();
Is there a better way to do this?