topic Re: How to get taskentity id from service task? in Alfresco Archive

How to get taskentity id from service task?

kesavkolla — Fri, 20 May 2011 23:07:57 GMT

I've a service task class which implements JavaDelegate. Inside the execute method I want to get the current running task entity id. Is there any API to retrieve the current running task entity id?

Re: How to get taskentity id from service task?

jbarrez — Tue, 24 May 2011 07:46:45 GMT

I guess you need the id of the activity which you are currently in?

Why do you need? What's the use case?

Re: How to get taskentity id from service task?

kesavkolla — Wed, 25 May 2011 16:39:22 GMT

I have a service task which executes a remote command (SSH). I want to pass the id to the remote program as a co-relation id. The remote program generates some messages and I want to co-relate those messages with the task id. Is there any way to get the task entity id into the service task. I can get activity id but it's not a unique as task entity id.

Re: How to get taskentity id from service task?

jbarrez — Thu, 26 May 2011 10:47:04 GMT

Then you should use the execution id, which you can easily get from the DelegateExecution.

Correlate using that id, and you can signal your process back using the singal method on the runtimeService.

Re: How to get taskentity id from service task?

kesavkolla — Tue, 31 May 2011 06:51:25 GMT

I have a parallel gateway in my flow. The execution id is same for both branches in the flow. That is the reason I want to get the actual runtime id of the task. Is it not possible to get the id of the current running task?

Re: How to get taskentity id from service task?

ronald_van_kuij — Tue, 31 May 2011 07:07:34 GMT

are you sure they are the same? Afaik, each leg of a parallel gateway should have its own id. And watch out, do not use the root execution, since that is indeed the same for both.

Re: How to get taskentity id from service task?

kesavkolla — Wed, 01 Jun 2011 01:24:51 GMT

The service task gets DelegateExecution as reference. If I call getId on it I'm getting same id in both the parallel gateway flows.
I have same service task class that is plugged into the parallel gateway with different parameters. In the runtime if when I call getId on the delegate execution object I'm getting same id.

Re: How to get taskentity id from service task?

frederikherema1 — Mon, 06 Jun 2011 07:56:13 GMT

Can you provide a simple unit-test with a parallel process which highlight the behavior of the same ID's in parallel paths?

Re: How to get taskentity id from service task?

vnama — Wed, 01 Feb 2012 21:50:34 GMT

I'd like to do a similar thing. I have an application from which a service task in a process must communicate to. I would like the service task or any task for that matter, to be able to communicate to my rest application it's task id. Once my application has the task id, I will make a rest call to the Activiti-rest. But I need the id of the task. How can I get the id of a service task? Thank you.

Re: How to get taskentity id from service task?

jbarrez — Thu, 02 Feb 2012 11:22:29 GMT

Why would you want to do that? Isn't an execution id enough, as the correlation between your exchanged messages

Re: How to get taskentity id from service task?

vnama — Thu, 02 Feb 2012 14:02:25 GMT

Well when you make a rest call isn't the request: GET /task/{taskId}
and not the execution id?

If I can do what I want with the execution id, how can I get the execution id?

Re: How to get taskentity id from service task?

vnama — Mon, 27 Feb 2012 15:42:38 GMT

Can anyone help me with this? I think I should give some more information about what I'm doing. I have a process definition which includes a receive task. When I instantiate this definition I have code that tries to query the current excution id, but it returns null. If I try to query after the receive task has paused the process, then it returns the active running instances of my process, but I need to get the execution id, before the process pauses at the receive task. Which classes should I be looking at for this problem? Any advice at all on what I should try? Thank you so much.

Re: How to get taskentity id from service task?

davidk1 — Fri, 07 Dec 2012 09:57:31 GMT

I don't know in general how to get the taskID? There are many methods that require the taskID as parameter, like createAttachment() - at least from version 5.11 there is an issue with it.

Usage of TaskQuery where the call starts inside a task itself, seems to me a little bit cumbersome.

Please, also see http://forums.activiti.org/en/viewtopic.php?f=6&t=5718

Re: How to get taskentity id from service task?

jbarrez — Mon, 10 Dec 2012 09:03:08 GMT

Yes, you will need to use a sort of query: see http://activiti.org/userguide/index.html#N12AC2