Extend streaming process template

[dominikhorn93]

Description

We need to extend the streaming process template to be able to throw BPMN errors for the processes using the functionality as Call Activities.

Details

• Add the event subprocess with the message bpmnError this message name should be used in the bpmn error consumer when correlation the error event
• check on the path if the variable app_bpmn_erorrs_enabled is set, only proceed to the error end event if the variable is available and true
• call the implemented incident logic from the incident consumer if the variable is not set
• Configure the error end event to have a dynamic error code and error message that is bind to the variables set within the bpmn error consumer when correlation the bpmnError message
• Create a process test for the template
  • within a process and attached error events
  • with and without the app_bpmn_errors_enabled variable set

[martind260]

@dominikhorn93 Calling the implemented incident logic means propagate the message to the Generic DLQ for incidents (from here: https://app.zenhub.com/workspace/o/it-at-m/digiwf-project/issues/147)

[dominikhorn93]

This is one option. But I would prefer to do it via External Task Worker, otherwise we would send messages to ourselves.

[martind260]

Throwing a dynamic error code from an error event is not possible. Instead we use a delegate to throw the dynamic error.