[LENS-1299] Thread should have ability to wait for Events to be processed

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Fix Version/s: 2.7
• Assignee: Lavkesh Lahngir
• Reporter: Lavkesh Lahngir
• Created: 29/Aug/16 10:54
• Updated: 31/Jan/18 08:39
• Resolved: 29/Aug/16 12:11

Description

When a thread notifies event service to process any event, it should have a way to wait for it to be finished.

LensEvent event = new LensEvent();
synchronized(event) {
   eventservice.notifyEvent(event);
   event.wait();
}

The EventHandler will do a notifyall() on the event it is done handling.

public void run() {
      try {
        Class<? extends LensEvent> evtClass = event.getClass();
        // Call listeners directly listening for this event type
        handleEvent(eventListeners.get(evtClass), event);
        Class<?> superClass = evtClass.getSuperclass();

        // Call listeners which listen of super types of this event type
        while (LensEvent.class.isAssignableFrom(superClass)) {
          if (eventListeners.containsKey(superClass)) {
            handleEvent(eventListeners.get(superClass), event);
          }
          superClass = superClass.getSuperclass();
        }
      } finally {
        synchronized (event) {
          event.notifyAll();
        }
      }
    }

Issue Links

• is duplicated by: LENS-1298 Thread should have ability to wait for Events to be processed