/**
* Notify all ConnectionListeners. Service implementations are expected to use this method to
* broadcast connection events.
*
* <p>The provided default implementation queues the event into an internal event queue. An event
* dispatcher thread dequeues events from the queue and dispatches them to the registered
* ConnectionListeners. Note that the event dispatching occurs in a separate thread, thus avoiding
* potential deadlock problems.
*
* @param type the ConnectionEvent type
*/
protected void notifyConnectionListeners(int type) {
/*
* Don't bother queuing an event if there's no listeners.
* Yes, listeners could be removed after checking, which
* just makes this an expensive no-op.
*/
if (connectionListeners.size() > 0) {
ConnectionEvent e = new ConnectionEvent(this, type);
queueEvent(e, connectionListeners);
}
/* Fix for broken JDK1.1.x Garbage collector :
* The 'conservative' GC in JDK1.1.x occasionally fails to
* garbage-collect Threads which are in the wait state.
* This would result in thread (and consequently memory) leaks.
*
* We attempt to fix this by sending a 'terminator' event
* to the queue, after we've sent the CLOSED event. The
* terminator event causes the event-dispatching thread to
* self destruct.
*/
if (type == ConnectionEvent.CLOSED) q.terminateQueue();
}
/** Stop the event dispatcher thread so the queue can be garbage collected. */
protected void finalize() throws Throwable {
super.finalize();
q.terminateQueue();
}