/** Removes a listener for updated cluster states. */
public void remove(ClusterStateListener listener) {
clusterStateListeners.remove(listener);
priorityClusterStateListeners.remove(listener);
lastClusterStateListeners.remove(listener);
postAppliedListeners.remove(listener);
for (Iterator<NotifyTimeout> it = onGoingTimeouts.iterator(); it.hasNext(); ) {
NotifyTimeout timeout = it.next();
if (timeout.listener.equals(listener)) {
timeout.cancel();
it.remove();
}
}
}
@Override
protected synchronized void doStop() {
for (NotifyTimeout onGoingTimeout : onGoingTimeouts) {
onGoingTimeout.cancel();
try {
onGoingTimeout.cancel();
onGoingTimeout.listener.onClose();
} catch (Exception ex) {
logger.debug("failed to notify listeners on shutdown", ex);
}
}
ThreadPool.terminate(updateTasksExecutor, 10, TimeUnit.SECONDS);
// close timeout listeners that did not have an ongoing timeout
postAppliedListeners
.stream()
.filter(listener -> listener instanceof TimeoutClusterStateListener)
.map(listener -> (TimeoutClusterStateListener) listener)
.forEach(TimeoutClusterStateListener::onClose);
remove(localNodeMasterListeners);
}