Examples with ActorSystem akka.actor.ActorSystem used on opensource projects

Example 86 with ActorSystem

use of akka.actor.ActorSystem in project lzl_workspace by hpulzl.

the class ActorSystemMain method main.

public static void main(String[] args) {
    // 创建ActorSystem，初始化数据.有不同的构造方法，也可以读取资源文件
    ActorSystem actorSystem = ActorSystem.create("akka-demo");
    // 找到具体执行那一个actor
    ActorRef actorRef = actorSystem.actorOf(Props.create(HelloActor.class));
    // 发送actor传递的数据
    actorRef.tell("hello", ActorRef.noSender());
}

Example 87 with ActorSystem

use of akka.actor.ActorSystem in project flink by apache.

the class AkkaRpcActorHandshakeTest method setupClass.

@BeforeClass
public static void setupClass() {
    final ActorSystem actorSystem1 = AkkaUtils.createDefaultActorSystem();
    final ActorSystem actorSystem2 = AkkaUtils.createDefaultActorSystem();
    final ActorSystem wrongVersionActorSystem = AkkaUtils.createDefaultActorSystem();
    AkkaRpcServiceConfiguration akkaRpcServiceConfig = AkkaRpcServiceConfiguration.defaultConfiguration();
    akkaRpcService1 = new AkkaRpcService(actorSystem1, akkaRpcServiceConfig);
    akkaRpcService2 = new AkkaRpcService(actorSystem2, akkaRpcServiceConfig);
    wrongVersionAkkaRpcService = new WrongVersionAkkaRpcService(wrongVersionActorSystem, AkkaRpcServiceConfiguration.defaultConfiguration());
}

Example 88 with ActorSystem

use of akka.actor.ActorSystem in project flink by apache.

the class AkkaActorSystemTest method shutsDownOnActorFailure.

@Test
public void shutsDownOnActorFailure() {
    final ActorSystem actorSystem = AkkaUtils.createLocalActorSystem(new Configuration());
    try {
        final CompletableFuture<Terminated> terminationFuture = actorSystem.getWhenTerminated().toCompletableFuture();
        final ActorRef actorRef = actorSystem.actorOf(Props.create(SimpleActor.class));
        final FlinkException cause = new FlinkException("Flink test exception");
        actorRef.tell(Fail.exceptionally(cause), ActorRef.noSender());
        // make sure that the ActorSystem shuts down
        terminationFuture.join();
    } finally {
        AkkaUtils.terminateActorSystem(actorSystem).join();
    }
}

Example 89 with ActorSystem

use of akka.actor.ActorSystem in project flink by apache.

the class AkkaBootstrapToolsTest method testConcurrentActorSystemCreation.

/**
 * Tests that we can concurrently create two {@link ActorSystem} without port conflicts. This
 * effectively tests that we don't open a socket to check for a ports availability. See
 * FLINK-10580 for more details.
 */
@Test
public void testConcurrentActorSystemCreation() throws Exception {
    final int concurrentCreations = 10;
    final ExecutorService executorService = Executors.newFixedThreadPool(concurrentCreations);
    final CyclicBarrier cyclicBarrier = new CyclicBarrier(concurrentCreations);
    try {
        final List<CompletableFuture<Void>> actorSystemFutures = IntStream.range(0, concurrentCreations).mapToObj(ignored -> CompletableFuture.supplyAsync(CheckedSupplier.unchecked(() -> {
            cyclicBarrier.await();
            return AkkaBootstrapTools.startRemoteActorSystem(new Configuration(), "localhost", "0", LOG);
        }), executorService)).map(// terminate ActorSystems
        actorSystemFuture -> actorSystemFuture.thenCompose(AkkaUtils::terminateActorSystem)).collect(Collectors.toList());
        FutureUtils.completeAll(actorSystemFutures).get();
    } finally {
        ExecutorUtils.gracefulShutdown(10000L, TimeUnit.MILLISECONDS, executorService);
    }
}

Example 90 with ActorSystem

use of akka.actor.ActorSystem in project flink by apache.

the class SupervisorActorTest method completesTerminationFutureOfSiblingsIfActorFails.

@Test
public void completesTerminationFutureOfSiblingsIfActorFails() throws Exception {
    final ActorSystem actorSystem = actorSystemResource.getActorSystem();
    final ActorRef supervisor = SupervisorActor.startSupervisorActor(actorSystem, actorSystem.getDispatcher());
    final SupervisorActor.ActorRegistration actorRegistration1 = startAkkaRpcActor(supervisor, "foobar1");
    final SupervisorActor.ActorRegistration actorRegistration2 = startAkkaRpcActor(supervisor, "foobar2");
    final CompletableFuture<Void> terminationFuture = actorRegistration2.getTerminationFuture();
    assertThat(terminationFuture.isDone(), is(false));
    final FlinkException cause = new FlinkException("Test cause.");
    actorRegistration1.getActorRef().tell(Fail.exceptionally(cause), ActorRef.noSender());
    try {
        terminationFuture.get();
        fail("Expected the termination future being completed exceptionally");
    } catch (ExecutionException expected) {
    }
}