topic Problem using Event Handlers in Alfresco Archive https://connect.hyland.com/t5/alfresco-archive/problem-using-event-handlers/m-p/155361#M109713 <HTML><HEAD></HEAD><BODY><SPAN>Event Handlers are introduced In Activiti 5.15</SPAN><BR /><BR /><SPAN>I want to execute custom logic when the TASK_ASSIGNED&nbsp; event is called</SPAN><BR /><SPAN>Whenever Task is Assigned to a user i want that Event listener should listen the TASK_ASSIGNED event and i want assignee(User) of task in the event TASK_ASSIGNED</SPAN><BR /><BR /><SPAN>I have created my Event Listener for that as below</SPAN><BR /><PRE class="language-java line-numbers"><CODE><BR />public class MyEventListener implements ActivitiEventListener{<BR /><BR />&nbsp;&nbsp;&nbsp;<BR />&nbsp;&nbsp;&nbsp;@Override<BR />&nbsp;&nbsp;&nbsp;public boolean isFailOnException() {<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// TODO Auto-generated method stub<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return false;<BR />&nbsp;&nbsp;&nbsp;}<BR /><BR />&nbsp;&nbsp;&nbsp;@Override<BR />&nbsp;&nbsp;&nbsp;public void onEvent(ActivitiEvent event) {<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;// TODO Auto-generated method stub<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;switch(event.getType()){<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;case TASK_ASSIGNED:<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;System.out.println("From Event handler TASK_ASSIGNED:");<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;TaskService ts = event.getEngineServices().getTaskService();<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;System.out.println("No of Task: " + ts.createTaskQuery().processInstanceId(event.getProcessInstanceId()).count());<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;List&lt;Task&gt; tasks =&nbsp; ts.createTaskQuery().processInstanceId(event.getProcessInstanceId()).list();<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for(Task task : tasks)<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;System.out.println("Task Name: " + task.getName());<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;System.out.println("Task Assignee: " + task.getAssignee());<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;System.out.println("Task Description: " + task.getDescription());<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;break;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;case TASK_COMPLETED:<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;System.out.println("From Event handler TASK_COMPLETED:");<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;TaskService ts2 = event.getEngineServices().getTaskService();<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;System.out.println("No of Task: " + ts2.createTaskQuery().processInstanceId(event.getProcessInstanceId()).count());<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;tasks =&nbsp; ts2.createTaskQuery().processInstanceId(event.getProcessInstanceId()).list();<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for(Task task : tasks)<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;System.out.println("Task Name: " + task.getName());<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;System.out.println("Task Assignee: " + task.getAssignee());<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;System.out.println("Task Description: " + task.getDescription());<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;break;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<BR />&nbsp;&nbsp;&nbsp;}<BR /><BR />}<BR /><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN></CODE></PRE><BR /><BR /><BR /><SPAN>And I have generated Unit Test for Process</SPAN><BR /><BR /><PRE class="language-java line-numbers"><CODE><BR />TaskService ts = activitiRule.getTaskService();<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;System.out.println("From Junit Test");<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;System.out.println("No of Tasks from UnitTest: " +ts.createTaskQuery().processInstanceId(processInstance.getId()).count() );<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;List&lt;Task&gt; tasks =&nbsp; ts.createTaskQuery().processInstanceId(processInstance.getId()).list();<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for(Task task : tasks)<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;System.out.println("Task Name: " + task.getName());<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;System.out.println("Task Assignee: " + task.getAssignee());<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;System.out.println("Task Description: " + task.getDescription());<BR />&nbsp;&nbsp;&nbsp;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ts.complete(task.getId());<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;&nbsp;&nbsp;<BR /><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN></CODE></PRE><BR /><SPAN>OUTPUT of JUnit Test:</SPAN><BR /><PRE class="language-none line-numbers"><CODE><BR />From Event handler TASK_ASSIGNED:<BR />No of Task: 0<BR />From Junit Test<BR />No of Tasks from UnitTest: 1<BR />Task Name: Approval<BR />Task Assignee: kermit<BR />Task Description: This is Simple Approval Task<BR />From Event handler TASK_COMPLETED:<BR />No of Task: 1<BR />Task Name: Approval<BR />Task Assignee: kermit<BR />Task Description: This is Simple Approval Task<BR /><BR /><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN></CODE></PRE><BR /><BR /><BR /><SPAN>So when I Run The unit Test I got Result From TASK_COMPLETED and from Junit Test. But, in TASK_ASSIGNED: case I got list of Task = 0</SPAN><BR /><BR /><SPAN>This may be because First Activiti call TASK_ASSIGNED event and then it update Activiti DB so when we query inside TASK_ASSIGNED we will get no of Task =0 </SPAN><BR /><BR /><SPAN>But I want assignee in TASK_ASSIGNED event. so, when Task is assigned to user, I want to get that assignee and want to use some Custom logic on that Assignee </SPAN><BR /><BR /><SPAN>Please Help me For this problem</SPAN></BODY></HTML> Mon, 21 Apr 2014 08:33:59 GMT dattu_dave 2014-04-21T08:33:59Z Problem using Event Handlers https://connect.hyland.com/t5/alfresco-archive/problem-using-event-handlers/m-p/155361#M109713 Event Handlers are introduced In Activiti 5.15I want to execute custom logic when the TASK_ASSIGNED&nbsp; event is calledWhenever Task is Assigned to a user i want that Event listener should listen the TASK_ASSIGNED event and i want assignee(User) of task in the event TASK_ASSIGNEDI have created my Event Mon, 21 Apr 2014 08:33:59 GMT https://connect.hyland.com/t5/alfresco-archive/problem-using-event-handlers/m-p/155361#M109713 dattu_dave 2014-04-21T08:33:59Z Re: Problem using Event Handlers https://connect.hyland.com/t5/alfresco-archive/problem-using-event-handlers/m-p/155362#M109714 <HTML><HEAD></HEAD><BODY><SPAN>You cannot rely on the DB to be consistent at the time the event-handlers are fired. Not only is the transaction not comitted, but some entities may have not been updated/flushed to the DB. Any entities that are related to the fired event can be accessed inside the event payload. This represents the current state, which *can* be different from the DB.</SPAN><BR /><BR /><SPAN>In your case, using the ActivitiEvent, casting to ActivitiEntityEvent and extracting the Task should get you to the assignee. There is a lot of documentation around the different types of events, maybe a good point to start…</SPAN></BODY></HTML> Tue, 22 Apr 2014 08:37:16 GMT https://connect.hyland.com/t5/alfresco-archive/problem-using-event-handlers/m-p/155362#M109714 frederikherema1 2014-04-22T08:37:16Z