public static void startFrontend(Address joinAddress) {
ActorSystem system = ActorSystem.create(systemName);
Cluster.get(system).join(joinAddress);
ActorRef frontend = system.actorOf(Props.create(Frontend.class), "frontend");
system.actorOf(Props.create(WorkProducer.class, frontend), "producer");
system.actorOf(Props.create(WorkResultConsumer.class), "consumer");
}
public static void startWorker(Address contactAddress) {
ActorSystem system = ActorSystem.create(systemName);
Set<ActorSelection> initialContacts = new HashSet<ActorSelection>();
initialContacts.add(system.actorSelection(contactAddress + "/user/receptionist"));
ActorRef clusterClient =
system.actorOf(ClusterClient.defaultProps(initialContacts), "clusterClient");
system.actorOf(Worker.props(clusterClient, Props.create(WorkExecutor.class)), "worker");
}
public void testSchedule(
final JavaTestKit probe,
Props props,
FiniteDuration startDuration,
FiniteDuration afterRestartDuration) {
Iterable<akka.testkit.EventFilter> filter =
Arrays.asList(
new akka.testkit.EventFilter[] {
(akka.testkit.EventFilter) new ErrorFilter(ArithmeticException.class)
});
try {
system.eventStream().publish(new Mute(filter));
final ActorRef actor = system.actorOf(props);
new Within(startDuration) {
protected void run() {
probe.expectMsgEquals("tick");
probe.expectMsgEquals("tick");
probe.expectMsgEquals("tick");
}
};
actor.tell("restart", getRef());
new Within(afterRestartDuration) {
protected void run() {
probe.expectMsgEquals("tick");
probe.expectMsgEquals("tick");
}
};
system.stop(actor);
} finally {
system.eventStream().publish(new UnMute(filter));
}
}
@Test
public void testingWithoutParent() {
TestProbe probe = new TestProbe(system);
ActorRef child = system.actorOf(Props.create(DependentChild.class, probe.ref()));
probe.send(child, "ping");
probe.expectMsg("pong");
}
@Test
public void useAsk() throws Exception {
ActorRef testActor = system.actorOf(Props.create(JavaAPITestActor.class), "test");
assertEquals(
"Ask should return expected answer",
JavaAPITestActor.ANSWER,
Await.result(ask(testActor, "hey!", 3000), Duration.create(3, "seconds")));
}
@Test
public void useAskWithActorSelection() throws Exception {
ActorRef testActor = system.actorOf(Props.create(JavaAPITestActor.class), "test2");
ActorSelection selection = system.actorSelection("/user/test2");
ActorIdentity id =
(ActorIdentity)
Await.result(ask(selection, new Identify("yo!"), 3000), Duration.create(3, "seconds"));
assertEquals("Ask (Identify) should return the proper ActorIdentity", testActor, id.getRef());
}
@Test
public void fabricatedParentTestsItsChildResponses() throws Exception {
// didn't put final on these in order to make the parent fit in one line in the html docs
// #test-fabricated-parent
TestProbe proxy = new TestProbe(system);
ActorRef parent = system.actorOf(Props.create(new FabricatedParentCreator(proxy)));
proxy.send(parent, "ping");
proxy.expectMsg("pong");
// #test-fabricated-parent
}
public void exampleProdActorFactoryFunction() throws Exception {
// #child-maker-prod
Function<ActorRefFactory, ActorRef> maker =
new Function<ActorRefFactory, ActorRef>() {
@Override
public ActorRef apply(ActorRefFactory f) throws Exception {
return f.actorOf(Props.create(Child.class));
}
};
ActorRef parent = system.actorOf(Props.create(GenericDependentParent.class, maker));
// #child-maker-prod
}
@Test
public void shouldImplementComparable() {
ActorRef ref1 = system.actorOf(TrivialActor.class);
ActorRef ref2 = system.actorOf(TrivialActor.class);
Assert.assertNotEquals(
"Two references must appear as different using the compareTo method",
0,
ref1.compareTo(ref2));
Assert.assertEquals(
"A reference must be equal to itself according to compareTo method",
0,
ref1.compareTo(ref1));
}
// #crTest
@Test
public void countVotesAsIntendedNotAsInFlorida() {
ActorRef routedActor = system.actorOf(new Props().withRouter(new VoteCountRouter()));
routedActor.tell(DemocratVote);
routedActor.tell(DemocratVote);
routedActor.tell(RepublicanVote);
routedActor.tell(DemocratVote);
routedActor.tell(RepublicanVote);
Timeout timeout = new Timeout(Duration.parse("1 seconds"));
Future<Object> democratsResult = routedActor.ask(DemocratCountResult, timeout);
Future<Object> republicansResult = routedActor.ask(RepublicanCountResult, timeout);
assertEquals(3, Await.result(democratsResult, timeout.duration()));
assertEquals(2, Await.result(republicansResult, timeout.duration()));
}
public static void main(String[] args) {
if (args.length != 6) {
System.err.println("Incorrect input args");
System.exit(-1);
}
final String fileName = args[0];
final int minId = Integer.valueOf(args[1]);
final int maxId = Integer.valueOf(args[2]);
final double minAmount = Double.parseDouble(args[3]);
final double maxAmount = Double.parseDouble(args[4]);
final int recordsAmount = Integer.parseInt(args[5]);
final ActorSystem system = ActorSystem.create("FileGeneration");
ActorRef detailsFileWriter =
system.actorOf(Props.create(RandomInformationFileWriter.class), "detailsFileWriter");
system.actorOf(Props.create(Terminator.class, detailsFileWriter), "terminator");
RandomInformationFileWriter.Details details =
new RandomInformationFileWriter.Details(
fileName, minId, maxId, minAmount, maxAmount, recordsAmount);
detailsFileWriter.tell(details, null);
}
public static Address startBackend(Address joinAddress, String role) {
Config conf =
ConfigFactory.parseString("akka.cluster.roles=[" + role + "]")
.withFallback(ConfigFactory.load());
ActorSystem system = ActorSystem.create(systemName, conf);
Address realJoinAddress =
(joinAddress == null) ? Cluster.get(system).selfAddress() : joinAddress;
Cluster.get(system).join(realJoinAddress);
system.actorOf(
ClusterSingletonManager.defaultProps(
Master.props(workTimeout), "active", PoisonPill.getInstance(), role),
"master");
return realJoinAddress;
}
@Test
public void testingWithChildProbe() throws Exception {
final TestProbe probe = new TestProbe(system);
// #child-maker-test
Function<ActorRefFactory, ActorRef> maker =
new Function<ActorRefFactory, ActorRef>() {
@Override
public ActorRef apply(ActorRefFactory param) throws Exception {
return probe.ref();
}
};
ActorRef parent = system.actorOf(Props.create(GenericDependentParent.class, maker));
// #child-maker-test
probe.send(parent, "pingit");
probe.expectMsg("ping");
}
@Test
public void typedRouterPattern() {
try {
// #typed-router
// prepare routees
TypedActorExtension typed = TypedActor.get(system);
Named named1 = typed.typedActorOf(new TypedProps<Named>(Named.class));
Named named2 = typed.typedActorOf(new TypedProps<Named>(Named.class));
List<Named> routees = new ArrayList<Named>();
routees.add(named1);
routees.add(named2);
List<String> routeePaths = new ArrayList<String>();
routeePaths.add(typed.getActorRefFor(named1).path().toStringWithoutAddress());
routeePaths.add(typed.getActorRefFor(named2).path().toStringWithoutAddress());
// prepare untyped router
ActorRef router = system.actorOf(new RoundRobinGroup(routeePaths).props(), "router");
// prepare typed proxy, forwarding MethodCall messages to `router`
Named typedRouter = typed.typedActorOf(new TypedProps<Named>(Named.class), router);
System.out.println("actor was: " + typedRouter.name()); // name-243
System.out.println("actor was: " + typedRouter.name()); // name-614
System.out.println("actor was: " + typedRouter.name()); // name-243
System.out.println("actor was: " + typedRouter.name()); // name-614
// #typed-router
typed.poisonPill(named1);
typed.poisonPill(named2);
typed.poisonPill(typedRouter);
} catch (Exception e) {
// dun care
}
}
public static void main(String[] args) {
ActorSystem system = ActorSystem.create("Hello");
ActorRef a = system.actorOf(Props.create(HelloWorld.class), "helloWorld");
system.actorOf(Props.create(Terminator.class, a), "terminator");
}
