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jBPM 5.4 : how to forward / reassign a task to a group ?
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created by <a href="https://community.jboss.org/people/gonzalad">gonzalad</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/798550#798550">View the full discussion</a>
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<div class="jive-rendered-content"><p>As mentioned in <a class="jive-link-thread-small" href="https://community.jboss.org/thread/221465">https://community.jboss.org/thread/221465</a>, I need to reassign a task to a group.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>This isn't normally possible via taskService.forward as per the spec WS-Huma,Task 1.0 <span style="color: #555555; font-family: 'Lucida Sans', 'Lucida Sans Unicode', 'Lucida Grande', Verdana, Arial, Helvetica, sans-serif; font-size: 12px; background-color: #eef4f9;">chapter 4.7.3 Delegating or Forwarding a Human Task :</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="color: #555555; font-family: 'Lucida Sans', 'Lucida Sans Unicode', 'Lucida Grande', Verdana, Arial, Helvetica, sans-serif; font-size: 12px; background-color: #eef4f9;"><pre class="jive-pre"><code class="jive-code">Forwarding is possible if the task has a set of individually assigned potential owners, not if its potential owners are assigned using one or many groups.</code></pre></span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Is there a good way to do it with jBPM ?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>For the moment, here's my working code, but it's kind of ugly :</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-java"><font color="navy"><b>public</b></font> <font color="navy"><b>void</b></font> reassign(TaskSummary taskSummary, String username,
    String targetGroupname) <font color="navy">{</font>
 
  Task task = taskService.getTask(taskSummary.getId());
 
  <font color="darkgreen">// check if username is in potentialOwners</font>
  <font color="navy"><b>boolean</b></font> userInPotentialOwners = <font color="navy"><b>false</b></font>;
  <font color="navy"><b>for</b></font> (OrganizationalEntity entity : task.getPeopleAssignments()
      .getPotentialOwners()) <font color="navy">{</font>
    <font color="navy"><b>if</b></font> (entity.getId().equals(username)) <font color="navy">{</font>
      userInPotentialOwners = <font color="navy"><b>true</b></font>;
      <font color="navy"><b>break</b></font>;
    <font color="navy">}</font>
  <font color="navy">}</font>
 
  <font color="navy"><b>if</b></font> (!userInPotentialOwners) <font color="navy">{</font>
    org.jbpm.task.User actualOwner = task.getTaskData()
        .getActualOwner();
 
    <font color="darkgreen">// we claim the task just to set actualOwner to current user</font>
    <font color="navy"><b>if</b></font> (taskSummary.getStatus() == Status.Ready
        && (actualOwner == <font color="navy"><b>null</b></font> || !actualOwner.getId().equals(
            username))) <font color="navy">{</font>
      taskService.claim(task.getId(), username);
      actualOwner = task.getTaskData().getActualOwner();
    <font color="navy">}</font>
 
    <font color="darkgreen">// if actualOwner is current user, we add it to potentialOwnersn,</font>
    <font color="darkgreen">// just to call forward - see</font>
    <font color="darkgreen">// https://community.jboss.org/thread/221465?tstart=0</font>
    task.getPeopleAssignments().getPotentialOwners().add(actualOwner);
  <font color="navy">}</font>
 
  taskService.forward(taskSummary.getId(), username, targetGroupname);
 
  <font color="darkgreen">// forward reassigns the task.</font>
  <font color="darkgreen">// if the task was already assigned to other groups / users, those groups / users are not removed from potentialOwners</font>
  <font color="darkgreen">// we must do it explicitly</font>
  PeopleAssignments peopleAssignments = task.getPeopleAssignments();
  List<OrganizationalEntity> clonedList = peopleAssignments
      .getPotentialOwners();
  <font color="navy"><b>for</b></font> (OrganizationalEntity entity : clonedList) <font color="navy">{</font>
    <font color="navy"><b>if</b></font> (!entity.getId().equals(targetGroupname)
        && !entity.getId().equals(<font color="red">"Administrator"</font>)) <font color="navy">{</font>
      peopleAssignments.getPotentialOwners().remove(entity);
    <font color="navy">}</font>
  <font color="navy">}</font>
<font color="navy">}</font>
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanks !</p></div>
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<p style="margin: 0;">Reply to this message by <a href="https://community.jboss.org/message/798550#798550">going to Community</a></p>
<p style="margin: 0;">Start a new discussion in jBPM at <a href="https://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2034">Community</a></p>
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