topic Are there hooks within activiti engine? in Alfresco Archive

Are there hooks within activiti engine?

markusfaeth — Tue, 10 Jul 2012 10:26:22 GMT

Hello, I would like to do something like this: For every user task you create call my custom method (1).Actually I could write additional code in our logic at two points to almost accomplish this: After creating a new process instance, look if the execution was stopped by a user task. And after comp

Re: Are there hooks within activiti engine?

gant — Tue, 10 Jul 2012 11:23:04 GMT

Hi,

You can use TaskListeners http://activiti.org/userguide/#taskListeners. I would use this, if you want to control (define) at design time of the process model, what code should be executed at runtime.

If it's always the same code, that shoud be run, you could have a look at pre- and post parse listeners. You'll find information on them in this forum.

Regards,
michael

Re: Are there hooks within activiti engine?

markusfaeth — Tue, 10 Jul 2012 12:07:15 GMT

Thank you!

This sounds promising, i'll check that! :geek:

Re: Are there hooks within activiti engine?

markusfaeth — Tue, 10 Jul 2012 13:50:57 GMT

BpmnParseListeners are perfect for this purpose. Thanks again!

Here is some of the code for all others who want to do this:


public class ParseListener implements BpmnParseListener {
 public void parseUserTask(Element userTaskElement, ScopeImpl scope, ActivityImpl activity) {
  UserTaskActivityBehavior utab = (UserTaskActivityBehavior)activity.getActivityBehavior();
  utab.getTaskDefinition().addTaskListener("create", new CommonUserTaskCreateListener());
 }
 // other method implementations, all empty…
}

CommonUserTaskCreateListener is actually creating messages (portal internal message system) for portal users getting informed that a new task is available…