Re: [jbpm-dev] Task object with stale data

Hi Marcelo, You should not post user questions to the jbpm-dev list, you should use the forum for this kind of questions. Can you please post the question in the forum with a test to reproduce your problem? Cheers On Wed, Aug 1, 2012 at 10:38 PM, Marcelo Zabalet <zabalet(a)gmail.com&gt;wrote: > Hey. > > I'm working on a long-term government project for the implementation of > BPM. We are building an application with jBPM to expose BPM to other > projects as a service. I'll be working with this for a while. > > Well, going to the point, the problem I have now is an object "Task" with > stale data when I try to do a CompleteTask operation. > > To set the context: this project is based on > > <parent> > <groupId>org.drools</groupId> > <artifactId>droolsjbpm-parent</artifactId> > <version>5.4.0.Final</version> > </parent> > > using, at the moment, a local strategy for the Human Task Service (not > Mina, nor MQ) accesing the service with this class: > > org.jboss.bpm.console.server.integration.TaskManagement. > > > By completing a task from here: TaskManagement.completeTask (taskId, > data, user ID), I found the symptom of losing the assignment of task vars > to the process. I don't know what exactly the problem is, but trying to > solve the problem, I realized that here: > > SyncWSHumanTaskHandler.handleCompletedTask(taskId) { > Task task = client.getTask(taskId); > ... > if (task.getTaskData().getStatus() == Status.Completed)) { > ... > } > > the system ends up with a Task object with stale data. In the database, > the task at hand has a Completed status, but in this case, the Task object > has an InProgress status. So, the if-condition evaluates to false, never > executing the corresponding block where lies the vars assigment stuff. > > Here is a copy of the stack at the three moments where the completeTask > operation acquires a Task object from the database (or the persistence > context). > > This acquires a task and marks it as InProgress > > TaskServiceSession.getTask(long) line: 527 > TaskServiceSession.taskOperation(Operation, long, String, String, > ContentData, List<String>) line: 406 > LocalTaskService.start(long, String) line: 276 > TaskManagement.completeTask(long, Map, String) line: 95 > > This acquires a task and marks it as Completed. I checked at this point > and is the same Task Object (I mean same java Obect in memory), so far so > good. > > TaskServiceSession.getTask(long) line: 527 > TaskServiceSession.taskOperation(Operation, long, String, String, > ContentData, List<String>) line: 406 > LocalTaskService.complete(long, String, ContentData) line: 80 > TaskManagement.completeTask(long, Map, String) line: 113 > > This acquires a Task for the work-item stuff. > This is where the problem lies. The Task object is a diferent one from > the previous ones and has stale data, so the status is InProgress. > I think there is a conflict with the Entity Managers here... > > TaskServiceSession.getTask(long) line: 527 > LocalTaskService.getTask(long) line: 165 > SyncWSHumanTaskHandler$TaskCompletedHandler.handleCompletedTask(long) > line: 345 > SyncWSHumanTaskHandler$TaskCompletedHandler$1.run() line: 333 > Thread.run() line: 662 > > > Obviously, the best answer is how I fix this to get it working ASAP :) > Talking seriously, I will apreciate any tip or clue to help me focus in > the right direction. Maybe I'm wrong from the root. Some of the questions > that arise: > I see that I'm using (indirectly) > org.jbpm.process.workitem.wsht.SyncWSHumanTaskHandler that is marked as > @Deprecated. > Why is it deprecated or what should I use instead? > I choose a local strategy, is still contemplated or will be removed and > no one is thinking on local in favor of Mina, queues, or something else? > > > Thanks in advance. > > > Marcelo. > > _______________________________________________ > jbpm-dev mailing list > jbpm-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/jbpm-dev > > -- - MyJourney @ http://salaboy.wordpress.com - Co-Founder @ http://www.jugargentina.org - Co-Founder @ http://www.jbug.com.ar - Salatino "Salaboy" Mauricio -