topic Re: Cannot get ServiceTasks and EndEvents description in listeners in Alfresco Archive

Cannot get ServiceTasks and EndEvents description in listeners

pmesmeur — Fri, 10 Jul 2015 12:17:43 GMT

A model can contain ServiceTasks and EndEvents. If listeners are recorded in the engine, I can be notified of them via the function:[java]void ExecutionListener.notify(DelegateExecution execution);[/java]Moreover, the modeler allows to fill a "Description" for both ServiceTask and EndEvent. What I w

Re: Cannot get ServiceTasks and EndEvents description in listeners

vasile_dirla — Sat, 11 Jul 2015 23:36:05 GMT

I think the transaction is not committed yet and that's why you get null value for the task.
if you want to obtain the "description" you wrote in the modeller then maybe is better to take it from the BPMNModel.
<java>
BpmnModel model = repositoryService.getBpmnModel(execution.getProcessDefinitionId());
</java>
If this answer is not helping you too much please provide a JUnit for this and then will be easier to help you.

Re: Cannot get ServiceTasks and EndEvents description in listeners

pmesmeur — Mon, 13 Jul 2015 06:15:14 GMT

Thank you very much for this answer. I created the following function
[java]
    private String getStatus(DelegateExecution execution) {
        String status = "";

        try {
            BpmnModel bpmnModel = execution.getEngineServices().getRepositoryService().getBpmnModel(execution.getProcessDefinitionId());
            Process process = bpmnModel.getProcesses().get(0);
            FlowElement flowElement = process.getFlowElement(execution.getCurrentActivityId());
            status = flowElement.getDocumentation();
        }

        catch (Exception e) {
            /// nothing to do
        }

        return (status);
    }
[/java]
and it works good… almost good… as while taking the "Documentation" string from the model, the expressions (such as ${value}) are not interpreted. This current solution is perfect temporarily but I would certainly have to find how to solve this issue.

Philippe

Re: Cannot get ServiceTasks and EndEvents description in listeners

vasile_dirla — Mon, 13 Jul 2015 07:29:01 GMT

yes, I expect to be so because the BpmnModel contains the model as it is defined in the xml.
if you want to evaluate an expression, you could do it like that:
<java>
Expression expression = Context.getProcessEngineConfiguration().getExpressionManager().createExpression("${value}");
Object value = expression.getValue(execution)
</java>

Re: Cannot get ServiceTasks and EndEvents description in listeners

pmesmeur — Mon, 13 Jul 2015 08:32:30 GMT

Yeah, it works great. Thank you very much
Philippe