@PreDestroy
public void shutdown() throws InterruptedException {
flushRequests.shutdown();
stageRequests.shutdown();
removeRequests.shutdown();
if (timeoutFuture != null) {
timeoutFuture.cancel(false);
}
repository.removeListener(this);
/* Waits for all requests to have finished. This is blocking to avoid that the
* repository gets closed nearline storage requests have had a chance to finish.
*/
long deadline = System.currentTimeMillis() + 3000;
if (flushRequests.awaitTermination(
deadline - System.currentTimeMillis(), TimeUnit.MILLISECONDS)) {
if (stageRequests.awaitTermination(
deadline - System.currentTimeMillis(), TimeUnit.MILLISECONDS)) {
removeRequests.awaitTermination(
deadline - System.currentTimeMillis(), TimeUnit.MILLISECONDS);
}
}
}
