topic Re: Access to 'assembled' process definitions in Alfresco Archive

Access to 'assembled' process definitions

mackking-ns — Mon, 16 May 2016 13:33:36 GMT

Greetings,We are currently working on building up a sort of 'wizard' style application that leverages Activiti under the covers to define the steps in the wizard. As a result, we have a number of User Tasks chained together in our Process Definitions, many/all of which are to be completed by a singl

Re: Access to 'assembled' process definitions

martin_grofcik — Mon, 16 May 2016 20:09:22 GMT

Hi Mackenzie,

Yes there is. You have to find start activity (In your case it is none start event). After that you can follow sequence flows to get to the right nodes.

Regards
Martin

Re: Access to 'assembled' process definitions

mackking-ns — Mon, 16 May 2016 20:27:15 GMT

Hi Martin,

So I have to effectively walk the contents of BpmnModel and build up the representation by hand?

ie:
<java>

BpmnModel bpmn = repositoryService.getBpmnModel(…);

FlowElements start = bpmn.getMainProcess().getFlowElement("startElementId");

List<SequenceFlows> outgoing = start.getOutgoingFlows();

for (SequenceFlows out : outgoing) {
String nextStep = out.getTargetRef();
bpmn.getMainProcess().getFlowElement(nextStep);
// repeat, walking my way through the model ??
}
</java>

Re: Access to 'assembled' process definitions

martin_grofcik — Tue, 17 May 2016 07:20:35 GMT

Hi Mackenzie,

Another possibility is to search by type.

Regards
Martin

Re: Access to 'assembled' process definitions

mackking-ns — Tue, 17 May 2016 13:01:16 GMT

You mean via List <FlowElementType> Process.findFlowElementsOfType(FlowElementType.class) ??

This seems to return the list of UserTasks in XML file source order. Is there no way to retrieve them in logical/process order?

Re: Access to 'assembled' process definitions

jbarrez — Wed, 18 May 2016 16:45:11 GMT

No, there isn't. Order is not fixed, as you can have cycles in the process graph.