19845d93e8
* resize on nth message instead of always each message * improved pressure evaluation * more tests * documentation * removed ActorPool
71 lines
No EOL
2.2 KiB
Java
71 lines
No EOL
2.2 KiB
Java
/**
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* Copyright (C) 2009-2012 Typesafe Inc. <http://www.typesafe.com>
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*/
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package akka.docs.jrouting;
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import akka.routing.RoundRobinRouter;
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import akka.routing.DefaultResizer;
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import akka.actor.ActorRef;
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import akka.actor.Props;
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import akka.actor.UntypedActor;
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import akka.actor.ActorSystem;
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import java.util.Arrays;
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public class RouterViaProgramExample {
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public static class ExampleActor extends UntypedActor {
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public void onReceive(Object msg) {
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if (msg instanceof Message) {
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Message message = (Message) msg;
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System.out.println(String.format("Received %s in router %s", message.getNbr(), getSelf().path().name()));
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} else {
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unhandled(msg);
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}
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}
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public static class Message {
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private final int nbr;
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public Message(int nbr) {
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this.nbr = nbr;
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}
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public int getNbr() {
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return nbr;
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}
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}
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}
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public static void main(String... args) {
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ActorSystem system = ActorSystem.create("RPE");
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//#programmaticRoutingNrOfInstances
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int nrOfInstances = 5;
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ActorRef router1 = system.actorOf(new Props(ExampleActor.class).withRouter(new RoundRobinRouter(nrOfInstances)));
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//#programmaticRoutingNrOfInstances
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for (int i = 1; i <= 6; i++) {
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router1.tell(new ExampleActor.Message(i));
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}
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//#programmaticRoutingRoutees
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ActorRef actor1 = system.actorOf(new Props(ExampleActor.class));
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ActorRef actor2 = system.actorOf(new Props(ExampleActor.class));
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ActorRef actor3 = system.actorOf(new Props(ExampleActor.class));
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Iterable<ActorRef> routees = Arrays.asList(new ActorRef[] { actor1, actor2, actor3 });
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ActorRef router2 = system.actorOf(new Props(ExampleActor.class).withRouter(RoundRobinRouter.create(routees)));
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//#programmaticRoutingRoutees
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for (int i = 1; i <= 6; i++) {
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router2.tell(new ExampleActor.Message(i));
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}
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//#programmaticRoutingWithResizer
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int lowerBound = 2;
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int upperBound = 15;
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DefaultResizer resizer = new DefaultResizer(lowerBound, upperBound);
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ActorRef router3 = system.actorOf(new Props(ExampleActor.class).withRouter(new RoundRobinRouter(nrOfInstances)));
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//#programmaticRoutingWithResizer
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for (int i = 1; i <= 6; i++) {
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router3.tell(new ExampleActor.Message(i));
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}
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}
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} |