akka.actor.OneForOneStrategy Java Examples
The following examples show how to use
akka.actor.OneForOneStrategy.
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Example #1
| Source File: StoppingSupervisorWithoutLoggingActorKilledExceptionStrategy.java From Flink-CEPplus with Apache License 2.0 | 6 votes |
|
@Override
public SupervisorStrategy create() {
return new OneForOneStrategy(
false,
new PFBuilder<Throwable, SupervisorStrategy.Directive>()
.match(
Exception.class,
(Exception e) -> {
if (e instanceof ActorKilledException) {
LOG.debug("Actor was killed. Stopping it now.", e);
} else {
LOG.error("Actor failed with exception. Stopping it now.", e);
}
return SupervisorStrategy.Stop$.MODULE$;
})
.build());
}
Example #2
| Source File: StoppingSupervisorWithoutLoggingActorKilledExceptionStrategy.java From flink with Apache License 2.0 | 6 votes |
|
@Override
public SupervisorStrategy create() {
return new OneForOneStrategy(
false,
new PFBuilder<Throwable, SupervisorStrategy.Directive>()
.match(
Exception.class,
(Exception e) -> {
if (e instanceof ActorKilledException) {
LOG.debug("Actor was killed. Stopping it now.", e);
} else {
LOG.error("Actor failed with exception. Stopping it now.", e);
}
return SupervisorStrategy.Stop$.MODULE$;
})
.build());
}
Example #3
| Source File: AbstractProxyActor.java From ditto with Eclipse Public License 2.0 | 6 votes |
|
@Override
public SupervisorStrategy supervisorStrategy() {
return new OneForOneStrategy(true, DeciderBuilder
.match(NullPointerException.class, e -> {
log.error(e, "NullPointer in child actor - restarting it...", e.getMessage());
log.info("Restarting child...");
return SupervisorStrategy.restart();
})
.match(ActorKilledException.class, e -> {
log.error(e.getCause(), "ActorKilledException in child actor - stopping it...");
return SupervisorStrategy.stop();
})
.matchAny(e -> SupervisorStrategy.escalate())
.build());
}
Example #4
| Source File: ClusterSingleton.java From ts-reaktive with MIT License | 6 votes |
|
/**
* Starts and returns the an {@link ActorRef} to the {@link ClusterSingletonManager} (and backoff supervisor)
* that manage this actor singleton.
*
* Note that you can't send this ActorRef messages that should go to your actor: use {@link StartProxy} for that.
*
* @param constructor Constructor to pass to Props in order to actually create the actor
*/
public ActorRef start(ActorSystem system, Supplier<T> constructor) {
Config config = system.settings().config().getConfig("ts-reaktive.actors.singleton");
Props backoffSupervisorProps = BackoffSupervisor.props(
Backoff.onStop(
Props.create(type, () -> constructor.get()), "actor",
FiniteDuration.create(config.getDuration("min-backoff", SECONDS), SECONDS),
FiniteDuration.create(config.getDuration("max-backoff", SECONDS), SECONDS),
0.2
).withSupervisorStrategy(new OneForOneStrategy(
DeciderBuilder .matchAny(e -> {
log.info("{}: Stopping and awaiting restart.", name, e);
return stop();
})
.build()
))
);
return system.actorOf(
ClusterSingletonManager.props(backoffSupervisorProps,
PoisonPill.getInstance(),
ClusterSingletonManagerSettings.create(system)
), name);
}
Example #5
| Source File: SessionActor.java From iotplatform with Apache License 2.0 | 5 votes |
|
@Override
public SupervisorStrategy supervisorStrategy() {
return new OneForOneStrategy(-1, Duration.Inf(), throwable -> {
logger.error(throwable, "Unknown session error");
if (throwable instanceof Error) {
return OneForOneStrategy.escalate();
} else {
return OneForOneStrategy.resume();
}
});
}
Example #6
| Source File: EscalatingSupervisorStrategy.java From flink with Apache License 2.0 | 5 votes |
|
@Override
public SupervisorStrategy create() {
return new OneForOneStrategy(
false,
new PFBuilder<Throwable, SupervisorStrategy.Directive>()
.matchAny(
(ignored) -> SupervisorStrategy.escalate())
.build());
}
Example #7
| Source File: ClusterSingletonSupervisorActor.java From ditto with Eclipse Public License 2.0 | 4 votes |
|
private OneForOneStrategy buildDefaultSupervisorStrategy() {
return new OneForOneStrategy(true, DeciderBuilder
.match(NullPointerException.class, e -> {
log.error(e, "NullPointer in singleton actor: {}", e.getMessage());
return restartChild();
}).match(IllegalArgumentException.class, e -> {
log.warning("Illegal Argument in singleton actor: {}", e.getMessage());
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
e.printStackTrace(pw);
log.warning("Illegal Argument in singleton actor: {}", sw.toString());
return SupervisorStrategy.resume();
}).match(IllegalStateException.class, e -> {
log.warning("Illegal State in singleton actor: {}", e.getMessage());
return SupervisorStrategy.resume();
}).match(IndexOutOfBoundsException.class, e -> {
log.warning("IndexOutOfBounds in singleton actor: {}", e.getMessage());
return SupervisorStrategy.resume();
}).match(NoSuchElementException.class, e -> {
log.warning("NoSuchElement in singleton actor: {}", e.getMessage());
return SupervisorStrategy.resume();
}).match(AskTimeoutException.class, e -> {
log.warning("AskTimeoutException in singleton actor: {}", e.getMessage());
return SupervisorStrategy.resume();
}).match(ConnectException.class, e -> {
log.warning("ConnectException in singleton actor: {}", e.getMessage());
return restartChild();
}).match(InvalidActorNameException.class, e -> {
log.warning("InvalidActorNameException in singleton actor: {}", e.getMessage());
return SupervisorStrategy.resume();
}).match(ActorKilledException.class, e -> {
log.error(e, "ActorKilledException in singleton actor: {}", e.message());
return restartChild();
}).match(DittoRuntimeException.class, e -> {
log.error(e,
"DittoRuntimeException '{}' should not be escalated to SupervisorActor. Simply resuming Actor.",
e.getErrorCode());
return SupervisorStrategy.resume();
}).match(UnsupportedOperationException.class, e -> {
log.error(e, "UnsupportedOperationException in singleton actor: {}",
e.getMessage());
terminateActorSystem();
return SupervisorStrategy.stop(); // only stopping as ActorSystem is terminated anyways
}).match(Throwable.class, e -> {
log.error(e, "Escalating above root actor!");
terminateActorSystem();
return SupervisorStrategy.stop(); // only stopping as ActorSystem is terminated anyways
}).matchAny(e -> {
log.error("Unknown message:'{}'! Escalating above root actor!", e);
terminateActorSystem();
return SupervisorStrategy.stop(); // only stopping as ActorSystem is terminated anyways
}).build());
}
Example #8
| Source File: RootSupervisorStrategyFactory.java From ditto with Eclipse Public License 2.0 | 4 votes |
|
public static OneForOneStrategy createStrategy(final LoggingAdapter log) {
return new OneForOneStrategy(true, DeciderBuilder
.match(NullPointerException.class, e -> {
log.error(e, "NullPointer in child actor: {}", e.getMessage());
log.info(RESTARTING_CHILD_MSG);
return SupervisorStrategy.restart();
}).match(IllegalArgumentException.class, e -> {
log.warning("Illegal Argument in child actor: {}", e.getMessage());
return SupervisorStrategy.resume();
}).match(IndexOutOfBoundsException.class, e -> {
log.warning("IndexOutOfBounds in child actor: {}", e.getMessage());
return SupervisorStrategy.resume();
}).match(IllegalStateException.class, e -> {
log.warning("Illegal State in child actor: {}", e.getMessage());
return SupervisorStrategy.resume();
}).match(NoSuchElementException.class, e -> {
log.warning("NoSuchElement in child actor: {}", e.getMessage());
return SupervisorStrategy.resume();
}).match(AskTimeoutException.class, e -> {
log.warning("AskTimeoutException in child actor: {}", e.getMessage());
return SupervisorStrategy.resume();
}).match(ConnectException.class, e -> {
log.warning("ConnectException in child actor: {}", e.getMessage());
log.info(RESTARTING_CHILD_MSG);
return SupervisorStrategy.restart();
}).match(InvalidActorNameException.class, e -> {
log.warning("InvalidActorNameException in child actor: {}", e.getMessage());
return SupervisorStrategy.resume();
}).match(ActorKilledException.class, e -> {
log.error(e, "ActorKilledException in child actor: {}", e.message());
log.info(RESTARTING_CHILD_MSG);
return SupervisorStrategy.restart();
}).match(DittoRuntimeException.class, e -> {
log.error(e,
"DittoRuntimeException '{}' should not be escalated to RootActor. Simply resuming Actor.",
e.getErrorCode());
return SupervisorStrategy.resume();
}).match(Throwable.class, e -> {
log.error(e, "Escalating above root actor!");
return SupervisorStrategy.escalate();
}).matchAny(e -> {
log.error("Unknown message:'{}'! Escalating above root actor!", e);
return SupervisorStrategy.escalate();
}).build());
}
Example #9
| Source File: PolicyPersistenceActorTest.java From ditto with Eclipse Public License 2.0 | 4 votes |
|
@Test
public void checkForActivityOfNonexistentPolicy() {
new TestKit(actorSystem) {
{
// GIVEN: a PolicyPersistenceActor is created in a parent that forwards all messages to us
final PolicyId policyId = PolicyId.of("test.ns", "nonexistent.policy");
final Props persistentActorProps =
PolicyPersistenceActor.props(policyId, new PolicyMongoSnapshotAdapter(), pubSubMediator);
final TestProbe errorsProbe = TestProbe.apply(actorSystem);
final Props parentProps = Props.create(Actor.class, () -> new AbstractActor() {
@Override
public void preStart() {
getContext().actorOf(persistentActorProps);
}
@Override
public SupervisorStrategy supervisorStrategy() {
return new OneForOneStrategy(true,
DeciderBuilder.matchAny(throwable -> {
errorsProbe.ref().tell(throwable, getSelf());
return SupervisorStrategy.restart();
}).build());
}
@Override
public Receive createReceive() {
return ReceiveBuilder.create()
.matchAny(message -> {
if (getTestActor().equals(getSender())) {
getContext().actorSelection(getSelf().path().child("*"))
.forward(message, getContext());
} else {
getTestActor().forward(message, getContext());
}
})
.build();
}
});
// WHEN: CheckForActivity is sent to a persistence actor of nonexistent policy after startup
final ActorRef underTest = actorSystem.actorOf(parentProps);
final Object checkForActivity = AbstractShardedPersistenceActor.checkForActivity(1L);
underTest.tell(checkForActivity, getRef());
underTest.tell(checkForActivity, getRef());
underTest.tell(checkForActivity, getRef());
// THEN: persistence actor requests shutdown
expectMsg(PolicySupervisorActor.Control.PASSIVATE);
// THEN: persistence actor should not throw anything.
errorsProbe.expectNoMessage(scala.concurrent.duration.Duration.create(3, TimeUnit.SECONDS));
}
};
}
