@SuppressWarnings("unchecked")
@Override
public void register(Class<? extends Enum> eventType, EventHandler handler) {
/* check to see if we have a listener registered */
EventHandler<Event> registeredHandler = (EventHandler<Event>) eventDispatchers.get(eventType);
LOG.info("Registering " + eventType + " for " + handler.getClass());
if (registeredHandler == null) {
eventDispatchers.put(eventType, handler);
} else if (!(registeredHandler instanceof MultiListenerHandler)) {
/* for multiple listeners of an event add the multiple listener handler */
MultiListenerHandler multiHandler = new MultiListenerHandler();
multiHandler.addHandler(registeredHandler);
multiHandler.addHandler(handler);
eventDispatchers.put(eventType, multiHandler);
} else {
/* already a multilistener, just add to it */
MultiListenerHandler multiHandler = (MultiListenerHandler) registeredHandler;
multiHandler.addHandler(handler);
}
}
/** {@link java.lang.Thread#run()} */
@Override
public void run() {
while (!(isExit())) {
try {
log.debug("trying to take from queue...");
EventHandler h = handlersQueue.take();
log.debug("took from the queue. executing " + h.getClass().getSimpleName());
h.handle();
} catch (InterruptedException ie) {
log.fatal("EXCEPTION: Module Interrupted " + ie.getMessage());
} catch (ClassCastException cce) {
log.fatal("EXCEPTION: " + cce.getMessage());
cce.printStackTrace();
}
}
}