@Override
  public void removeClaimedUser(Context context, XmlWorkflowItem wfi, EPerson user, String stepID)
      throws SQLException, IOException, WorkflowConfigurationException, AuthorizeException {
    // Check if we had reached our max number @ this moment
    int totalUsers =
        inProgressUserService.getNumberOfInProgressUsers(context, wfi)
            + inProgressUserService.getNumberOfFinishedUsers(context, wfi);

    // Then remove the current user from the inProgressUsers
    inProgressUserService.delete(
        context, inProgressUserService.findByWorkflowItemAndEPerson(context, wfi, user));

    Workflow workflow = workflowFactory.getWorkflow(wfi.getCollection());
    Step step = workflow.getStep(stepID);

    //        WorkflowManager.deleteOwnedTask(c, user, wfi, step, step.getActionConfig());
    // We had reached our total user, so recreate tasks for the user who don't have one
    if (totalUsers == step.getRequiredUsers()) {

      // Create a list of the users we are to ignore
      List<InProgressUser> toIgnore = inProgressUserService.findByWorkflowItem(context, wfi);

      // Remove the users to ignore
      RoleMembers roleMembers = step.getRole().getMembers(context, wfi);
      // Create a list out all the users we are to pool a task for
      for (InProgressUser ipu : toIgnore) {
        roleMembers.removeEperson(ipu.getUser());
      }
      step.getUserSelectionMethod()
          .getProcessingAction()
          .regenerateTasks(context, wfi, roleMembers);

    } else {
      // If the user previously had a personal PoolTask, this must be regenerated. Therefore we call
      // the regeneration method
      // with only one EPerson
      RoleMembers role = step.getRole().getMembers(context, wfi);
      List<EPerson> epersons = role.getEPersons();
      for (EPerson eperson : epersons) {
        if (eperson.getID().equals(user.getID())) {
          RoleMembers memberToRegenerateTasksFor = new RoleMembers();
          memberToRegenerateTasksFor.addEPerson(user);
          step.getUserSelectionMethod()
              .getProcessingAction()
              .regenerateTasks(context, wfi, memberToRegenerateTasksFor);
          break;
        }
      }
    }
    // Update our item
    itemService.update(context, wfi.getItem());
  }
  @Override
  public XmlWorkflowItem start(Context context, WorkspaceItem wsi)
      throws SQLException, AuthorizeException, IOException, WorkflowException {
    try {
      Item myitem = wsi.getItem();
      Collection collection = wsi.getCollection();
      Workflow wf = xmlWorkflowFactory.getWorkflow(collection);

      XmlWorkflowItem wfi = xmlWorkflowItemService.create(context, myitem, collection);
      wfi.setMultipleFiles(wsi.hasMultipleFiles());
      wfi.setMultipleTitles(wsi.hasMultipleTitles());
      wfi.setPublishedBefore(wsi.isPublishedBefore());
      xmlWorkflowItemService.update(context, wfi);
      removeUserItemPolicies(context, myitem, myitem.getSubmitter());
      grantSubmitterReadPolicies(context, myitem);

      context.turnOffAuthorisationSystem();
      Step firstStep = wf.getFirstStep();
      if (firstStep.isValidStep(context, wfi)) {
        activateFirstStep(context, wf, firstStep, wfi);
      } else {
        // Get our next step, if none is found, archive our item
        firstStep = wf.getNextStep(context, wfi, firstStep, ActionResult.OUTCOME_COMPLETE);
        if (firstStep == null) {
          archive(context, wfi);
        } else {
          activateFirstStep(context, wf, firstStep, wfi);
        }
      }
      // remove the WorkspaceItem
      workspaceItemService.deleteWrapper(context, wsi);
      context.restoreAuthSystemState();
      return wfi;
    } catch (WorkflowConfigurationException e) {
      throw new WorkflowException(e);
    }
  }
 /*
  * Executes an action and returns the next.
  */
 @Override
 public WorkflowActionConfig doState(
     Context c,
     EPerson user,
     HttpServletRequest request,
     int workflowItemId,
     Workflow workflow,
     WorkflowActionConfig currentActionConfig)
     throws SQLException, AuthorizeException, IOException, MessagingException, WorkflowException {
   try {
     XmlWorkflowItem wi = xmlWorkflowItemService.find(c, workflowItemId);
     Step currentStep = currentActionConfig.getStep();
     if (currentActionConfig.getProcessingAction().isAuthorized(c, request, wi)) {
       ActionResult outcome =
           currentActionConfig.getProcessingAction().execute(c, wi, currentStep, request);
       return processOutcome(
           c, user, workflow, currentStep, currentActionConfig, outcome, wi, false);
     } else {
       throw new AuthorizeException("You are not allowed to to perform this task.");
     }
   } catch (WorkflowConfigurationException e) {
     log.error(
         LogManager.getHeader(
             c,
             "error while executing state",
             "workflow:  "
                 + workflow.getID()
                 + " action: "
                 + currentActionConfig.getId()
                 + " workflowItemId: "
                 + workflowItemId),
         e);
     WorkflowUtils.sendAlert(request, e);
     throw new WorkflowException(e);
   }
 }
  @Override
  public WorkflowActionConfig processOutcome(
      Context c,
      EPerson user,
      Workflow workflow,
      Step currentStep,
      WorkflowActionConfig currentActionConfig,
      ActionResult currentOutcome,
      XmlWorkflowItem wfi,
      boolean enteredNewStep)
      throws IOException, AuthorizeException, SQLException, WorkflowException {
    if (currentOutcome.getType() == ActionResult.TYPE.TYPE_PAGE
        || currentOutcome.getType() == ActionResult.TYPE.TYPE_ERROR) {
      // Our outcome is a page or an error, so return our current action
      c.restoreAuthSystemState();
      return currentActionConfig;
    } else if (currentOutcome.getType() == ActionResult.TYPE.TYPE_CANCEL
        || currentOutcome.getType() == ActionResult.TYPE.TYPE_SUBMISSION_PAGE) {
      // We either pressed the cancel button or got an order to return to the submission page, so
      // don't return an action
      // By not returning an action we ensure ourselfs that we go back to the submission page
      c.restoreAuthSystemState();
      return null;
    } else if (currentOutcome.getType() == ActionResult.TYPE.TYPE_OUTCOME) {
      Step nextStep = null;
      WorkflowActionConfig nextActionConfig = null;
      try {
        // We have completed our action search & retrieve the next action
        if (currentOutcome.getResult() == ActionResult.OUTCOME_COMPLETE) {
          nextActionConfig = currentStep.getNextAction(currentActionConfig);
        }

        if (nextActionConfig != null) {
          // We remain in the current step since an action is found
          nextStep = currentStep;
          nextActionConfig.getProcessingAction().activate(c, wfi);
          if (nextActionConfig.requiresUI() && !enteredNewStep) {
            createOwnedTask(c, wfi, currentStep, nextActionConfig, user);
            return nextActionConfig;
          } else if (nextActionConfig.requiresUI() && enteredNewStep) {
            // We have entered a new step and have encountered a UI, return null since the current
            // user doesn't have anything to do with this
            c.restoreAuthSystemState();
            return null;
          } else {
            ActionResult newOutcome =
                nextActionConfig.getProcessingAction().execute(c, wfi, currentStep, null);
            return processOutcome(
                c, user, workflow, currentStep, nextActionConfig, newOutcome, wfi, enteredNewStep);
          }
        } else if (enteredNewStep) {
          // If the user finished his/her step, we keep processing until there is a UI step action
          // or no step at all
          nextStep = workflow.getNextStep(c, wfi, currentStep, currentOutcome.getResult());
          c.turnOffAuthorisationSystem();
          nextActionConfig = processNextStep(c, user, workflow, currentOutcome, wfi, nextStep);
          // If we require a user interface return null so that the user is redirected to the
          // "submissions page"
          if (nextActionConfig == null || nextActionConfig.requiresUI()) {
            return null;
          } else {
            return nextActionConfig;
          }
        } else {
          ClaimedTask task = claimedTaskService.findByWorkflowIdAndEPerson(c, wfi, user);

          // Check if we have a task for this action (might not be the case with automatic steps)
          // First add it to our list of finished users, since no more actions remain
          workflowRequirementsService.addFinishedUser(c, wfi, user);
          c.turnOffAuthorisationSystem();
          // Check if our requirements have been met
          if ((currentStep.isFinished(c, wfi)
                  && currentOutcome.getResult() == ActionResult.OUTCOME_COMPLETE)
              || currentOutcome.getResult() != ActionResult.OUTCOME_COMPLETE) {
            // Delete all the table rows containing the users who performed this task
            workflowRequirementsService.clearInProgressUsers(c, wfi);
            // Remove all the tasks
            deleteAllTasks(c, wfi);

            nextStep = workflow.getNextStep(c, wfi, currentStep, currentOutcome.getResult());

            nextActionConfig = processNextStep(c, user, workflow, currentOutcome, wfi, nextStep);
            // If we require a user interface return null so that the user is redirected to the
            // "submissions page"
            if (nextActionConfig == null || nextActionConfig.requiresUI()) {
              return null;
            } else {
              return nextActionConfig;
            }
          } else {
            // We are done with our actions so go to the submissions page but remove action
            // ClaimedAction first
            deleteClaimedTask(c, wfi, task);
            c.restoreAuthSystemState();
            nextStep = currentStep;
            nextActionConfig = currentActionConfig;
            return null;
          }
        }
      } catch (Exception e) {
        log.error("error while processing workflow outcome", e);
        e.printStackTrace();
      } finally {
        if ((nextStep != null && currentStep != null && nextActionConfig != null)
            || (wfi.getItem().isArchived() && currentStep != null)) {
          logWorkflowEvent(
              c,
              currentStep.getWorkflow().getID(),
              currentStep.getId(),
              currentActionConfig.getId(),
              wfi,
              user,
              nextStep,
              nextActionConfig);
        }
      }
    }

    log.error(LogManager.getHeader(c, "Invalid step outcome", "Workflow item id: " + wfi.getID()));
    throw new WorkflowException("Invalid step outcome");
  }