private void finishShutdown() {
if (!_finishingShutdown.compareAndSet(false, true)) {
return;
}
if (_shutdownTimeoutTask != null) {
_shutdownTimeoutTask.cancel(false);
}
if (_shutdownFactory) {
LOG.info("Shutdown Netty Event Loop");
_eventLoopGroup.shutdownGracefully(0, 0, TimeUnit.SECONDS);
}
if (_shutdownExecutor) {
// Due to a bug in ScheduledThreadPoolExecutor, shutdownNow() returns cancelled
// tasks as though they were still pending execution. If the executor has a large
// number of cancelled tasks, shutdownNow() could take a long time to copy the array
// of tasks. Calling shutdown() first will purge the cancelled tasks. Bug filed with
// Oracle; will provide bug number when available. May be fixed in JDK7 already.
_executor.shutdown();
_executor.shutdownNow();
LOG.info("Scheduler shutdown complete");
}
if (_shutdownCallbackExecutor) {
LOG.info("Shutdown callback executor");
_callbackExecutorGroup.shutdown();
_callbackExecutorGroup.shutdownNow();
}
final Callback<None> callback;
synchronized (_mutex) {
callback = _factoryShutdownCallback;
}
LOG.info("Shutdown complete");
callback.onSuccess(None.none());
}
@Override
public void start(Callback<None> callback) {
callback.onSuccess(None.none());
}