Last active
January 10, 2019 10:22
-
-
Save SergeyAlekseevN/7959b8e4c3c28ca7fb231337b6129f21 to your computer and use it in GitHub Desktop.
The following method shuts down an ExecutorService in two phases, first by calling shutdown to reject incoming tasks, and then calling shutdownNow, if necessary, to cancel any lingering tasks:
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
void shutdownAndAwaitTermination(ExecutorService pool) { | |
pool.shutdown(); // Disable new tasks from being submitted | |
try { | |
// Wait a while for existing tasks to terminate | |
if (!pool.awaitTermination(60, TimeUnit.SECONDS)) { | |
pool.shutdownNow(); // Cancel currently executing tasks | |
// Wait a while for tasks to respond to being cancelled | |
if (!pool.awaitTermination(60, TimeUnit.SECONDS)) | |
System.err.println("Pool did not terminate"); | |
} | |
} catch (InterruptedException ie) { | |
// (Re-)Cancel if current thread also interrupted | |
pool.shutdownNow(); | |
// Preserve interrupt status | |
Thread.currentThread().interrupt(); | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment