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Re: Human task escalation understanding
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created by <a href="https://community.jboss.org/people/javajbpmuser">javajbpmuser</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/803857#803857">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi Esteban,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thanks a lot for your reply. </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>It is definitely provides me the solution how to customize escalation event . Actually here is the solution I set up according to what you explained before , it is working fine  and  I am giving the java code that can help other members  to define quickly a customized escalation.</p><p>Just for information , I do not  use the Servlet HumanTaskServiceServlet  in my application as mechanism for plugging cutomized task service. </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Actually I am using spring configuration on my application , so at startup I am creating the task service using the code below :</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>public void initialize(){</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>MyOwnEscalationHandler Myhandler = new MyOwnEscalationHandler();</p><p>taskService = new TaskService(emf, SystemEventListenerFactory.getSystemEventListener(),Myhandler);// register my handler in the task service</p><p>}</p><p>The class MyOwnEscalationHandler is the following </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><strong style="color: #7f0055; font-size: 10.0pt; font-family: Consolas;">public</strong> <strong style="color: #7f0055; font-size: 10.0pt; font-family: Consolas;">class</strong><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> MyOwnEscalationHandler </span><strong style="color: #7f0055; font-size: 10.0pt; font-family: Consolas;">implements</strong></p><p><span style="font-size: 10.0pt; font-family: Consolas; color: black;">EscalatedDeadlineHandler {</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>       <span style="font-size: 10.0pt; font-family: Consolas; color: #646464;">@Override</span></p><p>       <strong style="color: #7f0055; font-size: 10.0pt; font-family: Consolas;">public</strong> <strong style="color: #7f0055; font-size: 10.0pt; font-family: Consolas;">void</strong><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> executeEscalatedDeadline(Task task, Deadline deadline,</span></p><p><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> Content content, TaskService service) {</span></p><p> <span style="font-size: 10.0pt; font-family: Consolas; color: #3f7f5f;">// </span><strong style="color: #7f9fbf; font-size: 10.0pt; font-family: Consolas;">TODO</strong><span style="font-size: 10.0pt; font-family: Consolas; color: #3f7f5f;"> Auto-generated method stub</span></p><p> <strong style="color: #7f0055; font-size: 10.0pt; font-family: Consolas;">if</strong><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> ( deadline == </span><strong style="color: #7f0055; font-size: 10.0pt; font-family: Consolas;">null</strong><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> || deadline.getEscalations() == </span><strong style="color: #7f0055; font-size: 10.0pt; font-family: Consolas;">null</strong><span style="font-size: 10.0pt; font-family: Consolas; color: black;">) {</span></p><p><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> System.</span><em style="color: #0000c0; font-size: 10.0pt; font-family: Consolas;">out</em><span style="font-size: 10.0pt; font-family: Consolas; color: black;">.println(</span><span style="font-size: 10.0pt; font-family: Consolas; color: #2a00ff;">"**********No escalation detected**********"</span><span style="font-size: 10.0pt; font-family: Consolas; color: black;">);</span></p><p> <strong style="color: #7f0055; font-size: 10.0pt; font-family: Consolas;">return</strong>;</p><p><span style="font-size: 10.0pt; font-family: Consolas; color: black;">        }</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p> <strong style="color: #7f0055; font-size: 10.0pt; font-family: Consolas;">for</strong><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> ( Escalation escalation : deadline.getEscalations() ) {</span></p><p><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> System.</span><em style="color: #0000c0; font-size: 10.0pt; font-family: Consolas;">out</em><span style="font-size: 10.0pt; font-family: Consolas; color: black;">.println(</span><span style="font-size: 10.0pt; font-family: Consolas; color: #2a00ff;">"Deadline detected  processing action "</span><span style="font-size: 10.0pt; font-family: Consolas; color: black;">);</span></p><p><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> System.</span><em style="color: #0000c0; font-size: 10.0pt; font-family: Consolas;">out</em><span style="font-size: 10.0pt; font-family: Consolas; color: black;">.println(</span><span style="font-size: 10.0pt; font-family: Consolas; color: #2a00ff;">"The task has expired , I am executing my own Deadline handler**********"</span><span style="font-size: 10.0pt; font-family: Consolas; color: black;">);</span></p><p> <span style="font-size: 10.0pt; font-family: Consolas; color: #3f7f5f;">// we won't <span style="text-decoration: underline;">impl</span> constraints for now</span></p><p> <span style="font-size: 10.0pt; font-family: Consolas; color: #3f7f5f;">//escalation.getConstraints()</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p> <span style="font-size: 10.0pt; font-family: Consolas; color: #3f7f5f;">// run reassignment first to allow notification to be send to new potential owners</span></p><p> <strong style="color: #7f0055; font-size: 10.0pt; font-family: Consolas;">if</strong><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> ( !escalation.<span style="background: silver;">getReassignments</span>().isEmpty()) {</span></p><p> <span style="font-size: 10.0pt; font-family: Consolas; color: #3f7f5f;">// get first and ignore the rest.</span></p><p><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> Reassignment reassignment = escalation.<span style="background: silver;">getReassignments</span>().get( 0 );</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-size: 10.0pt; font-family: Consolas; color: black;">                task.getTaskData().setStatus( Status.</span><em style="color: #0000c0; font-size: 10.0pt; font-family: Consolas;">Ready</em><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> );</span></p><p><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> <span style="text-decoration: underline;">List</span> potentialOwners = </span><strong style=": ; color: #7f0055; font-size: 10.0pt; font-family: Consolas; text-decoration: underline;">new</strong><span style="color: black; font-size: 10.0pt; text-decoration: underline; font-family: Consolas;"> ArrayList( reassignment.getPotentialOwners() )</span>;</p><p><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> task.getPeopleAssignments().setPotentialOwners( <span style="text-decoration: underline;">potentialOwners</span> );</span></p><p><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> task.getTaskData().setActualOwner(</span><strong style="color: #7f0055; font-size: 10.0pt; font-family: Consolas;">new</strong><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> User(</span><span style="font-size: 10.0pt; font-family: Consolas; color: #2a00ff;">"Administrator"</span><span style="font-size: 10.0pt; font-family: Consolas; color: black;">));</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> }       </span></p><p>            <strong style="color: #7f0055; font-size: 10.0pt; font-family: Consolas;">for</strong><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> ( Notification <span style="text-decoration: underline;">notification</span> : escalation.getNotifications() ) {</span></p><p><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> System.</span><em style="color: #0000c0; font-size: 10.0pt; font-family: Consolas;">out</em><span style="font-size: 10.0pt; font-family: Consolas; color: black;">.println(</span><span style="font-size: 10.0pt; font-family: Consolas; color: #2a00ff;">"****** Notify by emaill**********"</span><span style="font-size: 10.0pt; font-family: Consolas; color: black;">);</span></p><p><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> }        </span></p><p><span style="font-size: 10.0pt; font-family: Consolas; color: black;">            }</span></p><p><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> deadline.setEscalated( </span><strong style="color: #7f0055; font-size: 10.0pt; font-family: Consolas;">true</strong><span style="font-size: 10.0pt; font-family: Consolas; color: black;"> );</span></p><p><span style="font-size: 10.0pt; font-family: Consolas; color: black;">        }</span></p><p><span style="font-size: 10.0pt; font-family: Consolas; color: black;">       }</span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Best regards,</p></div>
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