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=clt #18343 Improve structure of DistPubSub docs

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This commit is contained in:
Patrik Nordwall 2015-09-11 15:48:49 +02:00
parent 02d0452f23
commit a3ced0a38a
4 changed files with 330 additions and 138 deletions
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71
akka-cluster-tools/src/test/java/akka/cluster/pubsub/DistributedPubSubMediatorTest.java
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@ -22,7 +22,7 @@ public class DistributedPubSubMediatorTest {
@ClassRule
public static AkkaJUnitActorSystemResource actorSystemResource =
new AkkaJUnitActorSystemResource("DistributedPubSubMediatorTest",
new AkkaJUnitActorSystemResource("DistributedPubSubMediatorTest",
ConfigFactory.parseString(
"akka.actor.provider = \"akka.cluster.ClusterActorRefProvider\"\n" +
"akka.remote.netty.tcp.port=0"));
@ -31,7 +31,7 @@ public class DistributedPubSubMediatorTest {
@Test
public void demonstrateUsage() {
public void demonstratePublishUsage() {
//#start-subscribers
system.actorOf(Props.create(Subscriber.class), "subscriber1");
//another node
@ -47,15 +47,30 @@ public class DistributedPubSubMediatorTest {
//#publish-message
}
public void demonstrateSendUsage() {
//#start-send-destinations
system.actorOf(Props.create(Destination.class), "destination");
//another node
system.actorOf(Props.create(Destination.class), "destination");
//#start-send-destinations
//#send-message
//somewhere else
ActorRef sender = system.actorOf(Props.create(Publisher.class), "sender");
// after a while the destinations are replicated
sender.tell("hello", null);
//#send-message
}
static//#subscriber
public class Subscriber extends UntypedActor {
LoggingAdapter log = Logging.getLogger(getContext().system(), this);
public Subscriber() {
ActorRef mediator =
ActorRef mediator =
DistributedPubSub.get(getContext().system()).mediator();
// subscribe to the topic named "content"
mediator.tell(new DistributedPubSubMediator.Subscribe("content", getSelf()),
mediator.tell(new DistributedPubSubMediator.Subscribe("content", getSelf()),
getSelf());
}
@ -75,14 +90,14 @@ public class DistributedPubSubMediatorTest {
public class Publisher extends UntypedActor {
// activate the extension
ActorRef mediator =
ActorRef mediator =
DistributedPubSub.get(getContext().system()).mediator();
public void onReceive(Object msg) {
if (msg instanceof String) {
String in = (String) msg;
String out = in.toUpperCase();
mediator.tell(new DistributedPubSubMediator.Publish("content", out),
mediator.tell(new DistributedPubSubMediator.Publish("content", out),
getSelf());
} else {
unhandled(msg);
@ -90,4 +105,48 @@ public class DistributedPubSubMediatorTest {
}
}
//#publisher
static//#send-destination
public class Destination extends UntypedActor {
LoggingAdapter log = Logging.getLogger(getContext().system(), this);
public Destination() {
ActorRef mediator =
DistributedPubSub.get(getContext().system()).mediator();
// register to the path
mediator.tell(new DistributedPubSubMediator.Put(getSelf()), getSelf());
}
public void onReceive(Object msg) {
if (msg instanceof String)
log.info("Got: {}", msg);
else if (msg instanceof DistributedPubSubMediator.SubscribeAck)
log.info("subscribing");
else
unhandled(msg);
}
}
//#send-destination
static//#sender
public class Sender extends UntypedActor {
// activate the extension
ActorRef mediator =
DistributedPubSub.get(getContext().system()).mediator();
public void onReceive(Object msg) {
if (msg instanceof String) {
String in = (String) msg;
String out = in.toUpperCase();
boolean localAffinity = true;
mediator.tell(new DistributedPubSubMediator.Send("/user/destination", out,
localAffinity), getSelf());
} else {
unhandled(msg);
}
}
}
//#sender
}