[jboss-user] [jBPM] - Re: PermissionDeniedException on task Claim

[José Luis Granda]

José Luis Granda [http://community.jboss.org/people/jlgranda81] created the discussion

"Re: PermissionDeniedException on task Claim"

To view the discussion, visit: http://community.jboss.org/message/602743#602743

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Sure, it is my claim method

public static void claimTask(TaskClient client, long taskId, String userId) throws InterruptedException {

        BlockingTaskOperationResponseHandler responseHandler = new BlockingTaskOperationResponseHandler();

        responseHandler.waitTillDone(5000);

        // Thread.sleep(10000);

        responseHandler = new BlockingTaskOperationResponseHandler();



        client.claim(taskId, userId, responseHandler);

        responseHandler.waitTillDone(5000);

    }

I have a procces with two human tasks, each one assing to Group ridrensur.financiero.secretaria (see bpmn fragment after). When I start process the first task is created with createby_id and actualowner_id to ridrensur.financiero.secretaria, it is a group in organizationalentity

 <potentialOwner>
        <resourceAssignmentExpression>
          <formalExpression>ridrensur.financiero.secretaria</formalExpression>
        </resourceAssignmentExpression>
      </potentialOwner>

I have code for list Group Task

public static List<TaskSummary> getUnassignedTasks(TaskClient client, String idRef, 
            List<String> roles, String participationType) {
        List<TaskSummary> result = new ArrayList<TaskSummary>();
        try {
            BlockingTaskSummaryResponseHandler responseHandler = new BlockingTaskSummaryResponseHandler();
            if (roles == null) {
                client.getTasksAssignedAsPotentialOwner(idRef, "en-UK",
                        responseHandler);
            } else {
                client.getTasksAssignedAsPotentialOwner(idRef, roles, "en-UK",
                        responseHandler);
            }
            result = responseHandler.getResults();
        } catch (Throwable t) {
            t.printStackTrace();
        }
        return result;
    }
It not works by ridrensur.financiero.secretaria is a Group, for run it I have to change createby_id to "Administrator" and actualowner_id to null in task, then getUnassignedTasks method works correctly. In the group list view I have claim for an user the first task from my user view button labeling as "claim", get current user from session. This button call for claimTask method. 

I trace claim method on org.jbpm.task.service.TaskClient ( https://github.com/krisv/jbpm/blob/master/jbpm-human-task/src/main/java/org/jbpm/task/service/TaskClient.java https://github.com/krisv/jbpm/blob/master/jbpm-human-task/src/main/java/org/jbpm/task/service/TaskClient.java) and org.jbpm.task.service.TaskServiceSession.java

I get trace exception

10:13:43,780 ERROR [STDERR] org.jbpm.task.service.PermissionDeniedException: User '[User:'joseluis']' does not have permissions to execution operation 'Claim' on task id 258
10:13:43,780 ERROR [STDERR]     at org.jbpm.task.service.TaskServiceSession.evalCommand(TaskServiceSession.java:206)
10:13:43,780 ERROR [STDERR]     at org.jbpm.task.service.TaskServiceSession.taskOperation(TaskServiceSession.java:344)
10:13:43,780 ERROR [STDERR]     at org.jbpm.task.service.TaskServerHandler.messageReceived(TaskServerHandler.java:84)
10:13:43,780 ERROR [STDERR]     at org.jbpm.task.service.mina.MinaTaskServerHandler.messageReceived(MinaTaskServerHandler.java:41)
10:13:43,780 ERROR [STDERR]     at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:752)

... 

Message receieved on client : OperationResponse
10:13:43,793 INFO  [STDOUT] [2011-04-29 10:13:43,792:debug] Arguments : [org.jbpm.task.service.PermissionDeniedException: User '[User:'joseluis']' does not have permissions to execution operation 'Claim' on task id 258]
10:13:43,793 ERROR [STDERR] org.jbpm.task.service.PermissionDeniedException: Server-side Exception: User '[User:'joseluis']' does not have permissions to execution operation 'Claim' on task id 258
10:13:43,794 ERROR [STDERR]     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
10:13:43,794 ERROR [STDERR]     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
10:13:43,794 ERROR [STDERR]     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
10:13:43,794 ERROR [STDERR]     at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
10:13:43,794 ERROR [STDERR]     at org.jbpm.task.service.responsehandlers.AbstractBaseResponseHandler.createSideException(AbstractBaseResponseHandler.java:74)
10:13:43,794 ERROR [STDERR]     at org.jbpm.task.service.responsehandlers.AbstractBlockingResponseHandler.waitTillDone(AbstractBlockingResponseHandler.java:48)
10:13:43,794 ERROR [STDERR]     at org.loxageek.jbpm.server.TaskServerUtilities.claimTask(TaskServerUtilities.java:197)
10:13:43,794 ERROR [STDERR]     at org.loxageek.ppless.client.action.TaskAction.claimTask(TaskAction.java:162)

*I trace isAllowed method in org.jbpm.task.service.TaskServiceSession.java. The question is: How I can register claim operation for user member of group or anyone? and how will define group assingment in XML? Thanks.*
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