Modify the Due Date in a GP Process

Question

Hello everybody,
I need to modify the Due Date on a given Process. All I have is the Process ID, that i get from a Parameter in my function... I got some code form several pages in the SAP Library, but i get an error in the line:
          IGPProcessInstance procesInst = rtm.getProcessInstance(proc, userContext);
In this line a GPEngineException is raised, Any help will be greatly appreciated!!!
This is the Code I have:
     IUser user = null;
     IGPStructure params = null;
//        Get current user
     try {
               IWDClientUser wdUser = WDClientUser.getCurrentUser();
               user = UMFactory.getUserFactory().getUserByLogonID(wdUser.getSAPUser().getName());
          //        obtain the Process template
               IGPProcess process =
               GPProcessFactory.getDesigntimeManager().getActiveTemplate(
          //        by specifying its ID
               processId,
          //        and the user accessing it
               user);
          //        obtain the Run Time Manager
               IGPRuntimeManager rtm = GPProcessFactory.getRuntimeManager();
          //        create a new, empty role assignment list
               IGPProcessRoleInstanceList roles = rtm.createProcesRoleInstanceList();
          //        get the number of roles required
               int rolenum = process.getRoleInfoCount();
          //        iterate over the required roles
               for (int i = 0; i < rolenum; i++) {
          //          add a new role assignment to the list
                roles.createProcessRoleInstance(
          //          by specifying the role's unique name
                process.getRoleInfo(i).getRoleName()).addUser(
          //          add the current user to every process role
                user);
          //          Here you see how to populate parameters with data.
          //          This example only works, if you initiate the "Time-Off process"
          //          that is delivered per default with the GP Framework.
          //          You find it in the gallery below "Examples".
          //          Otherwise no parameters are initialized.
          String proc = processId;  // Got it as a Parameter
          IGPUserContext userContext =  GPContextFactory.getContextManager().createUserContext(user);
                           /* En Exception is Raised in this line: */
          IGPProcessInstance procesInst = rtm.getProcessInstance(proc, userContext);
          Iterator notifs = (Iterator) procesInst.getNotificationInstanceEnumeration();
          IGPNotificationManager notifManager = GPProcessFactory.getNotificationManager();
          while(notifs.hasNext())
                  IGPNotificationInstance notif = (IGPNotificationInstance)notifs.next();
                  if(notif.isDueDateNotification())
                            IGPDeadline deadline = GPNotificationFactory.createDeadline(
                                                                                     IGPDeadline.DEADLINE_ABSOLUTE_POINT,
                                                                                     null,
                                                                                     0,
                                                                                     (java.sql.Date.valueOf("2008-02-29")).getTime());
                            notifManager.updateNotification(
                                                                 proc,
                                                                 notif.getActivityInstanceID(),
                                                                 notif.getNotificationID(),
                                                                 deadline);
                params = GPStructureFactory.getStructure(process.getInputParameters());
                if (process.getTitle().equals("Time-Off Process")){
                     IGPStructure struc = params.addStructure("Time_off_data.1");
                     struc.setAttributeValue("AbsenceTypeText", "Vacation");
                     struc.setAttributeValue("SimulationCode", 0);
                     struc.setAttributeValue("CompletionCode", 0);
                     struc.setAttributeValue("PaidFlag", true);
                params.setAttributeValue("data", java.sql.Date.valueOf("2008-02-28"));
          //          initiate the process template by passing the Process template
                rtm.startProcess(process,
          //          a name,
                "Process started by API ",
          //          a description,
                "This process has been started by an API",
          //          the initiating user
                user,
          //          the role assignment,
                roles,
          //          the initial parameters
                params,
          //          and the user actually executing this action
                user);
      } catch (WDUMException ex) {
      logger.traceThrowableT(Severity.ERROR,
      "Current user could not be resolved: ", ex);
      } catch (GPInvocationException ex) {
      logger.traceThrowableT(Severity.ERROR,
      "Exception raised when trying to start process: ", ex);
      } catch (GPEngineException ex) {
      logger.traceThrowableT(Severity.ERROR, "Exception raised when trying to start process: ", ex);     
     catch (UMException ex) {
     logger.traceThrowableT(Severity.ERROR,
     "Exception raised when trying to start process: ", ex);
Edited by: Francisco Perez on Mar 10, 2008 3:41 PM

Answer 1

Hello All,
You can change the deadline of a Due date notification of an process as given below:
           IGPRuntimeManager rtManager = GPProcessFactory.getRuntimeManager();     
           String process = executionContext.getProcessId();
           IUser admin =   UMFactory.getUserFactory().getUserByUniqueName("administrator");
           IGPUserContext userContext =  GPContextFactory.getContextManager().createUserContext(admin);
           IGPProcessInstance procesInst = rtManager.getProcessInstance(process,userContext);
           Iterator notifs = (Iterator) procesInst.getNotificationInstanceEnumeration();
           while(notifs.hasNext())
                IGPNotificationInstance notif = (IGPNotificationInstance)notifs.next();
                if(notif.isDueDateNotification())
                    IGPDeadline deadline = GPNotificationFactory.createDeadline( IGPDeadline.DEADLINE_ABSOLUTE_POINT,null,0,(new Date(108,2,1)).getTime());
                    notifManager.updateNotification(process,notif.getActivityInstanceID(),notif.getNotificationID(),deadline);