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Provide cancellation for CoordinatedShutdown tasks #27335

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Matthew Smedberg 2019-10-15 05:01:13 -06:00 • committed by Johan Andrén
parent b5eb18a033
commit 3e71b8a8b8
5 changed files with 441 additions and 75 deletions
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14
akka-docs/src/test/java/jdocs/actor/ActorDocTest.java
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@ -13,7 +13,6 @@ import static jdocs.actor.Messages.Swap.Swap;
import static jdocs.actor.Messages.*;
import akka.actor.CoordinatedShutdown;
import akka.util.Timeout;
import akka.Done;
import java.util.Optional;
@ -848,6 +847,10 @@ public class ActorDocTest extends AbstractJavaTest {
};
}
private CompletionStage<Done> cleanup() {
return null;
}
@Test
public void coordinatedShutdown() {
final ActorRef someActor = system.actorOf(Props.create(FirstActor.class));
@ -862,6 +865,15 @@ public class ActorDocTest extends AbstractJavaTest {
});
// #coordinated-shutdown-addTask
// #coordinated-shutdown-cancellable
Cancellable cancellable =
CoordinatedShutdown.get(system)
.addCancellableTask(
CoordinatedShutdown.PhaseBeforeServiceUnbind(), "someTaskCleanup", () -> cleanup());
// much later...
cancellable.cancel();
// #coordinated-shutdown-cancellable
// #coordinated-shutdown-jvm-hook
CoordinatedShutdown.get(system)
.addJvmShutdownHook(() -> System.out.println("custom JVM shutdown hook..."));