Blatt 6
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b0c7abc923
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@ -4,31 +4,58 @@ import akka.actor.typed.ActorRef;
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import akka.actor.typed.Behavior;
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import akka.actor.typed.Behavior;
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import akka.actor.typed.javadsl.*;
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import akka.actor.typed.javadsl.*;
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public class AkkaMainSystem extends AbstractBehavior<AkkaMainSystem.Create> {
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import java.time.Duration;
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public static class Create {
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public class AkkaMainSystem extends AbstractBehavior<AkkaMainSystem.Message> {
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private final TimerScheduler<Message> timers;
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private ActorRef<RelayActor.Message> alice;
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private ActorRef<RelayActor.Message> bob;
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private ActorRef<RelayActor.Message> charlie;
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public interface Message { }
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public static class Create implements Message {}
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public enum sendTimeOut implements Message { INSTANCE }
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public static Behavior<Message> create() {
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return Behaviors.setup(context -> Behaviors.withTimers(timers -> new AkkaMainSystem(context, timers)));
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}
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}
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public static Behavior<Create> create() {
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private AkkaMainSystem(ActorContext<Message> context, TimerScheduler<Message> timers) {
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return Behaviors.setup(AkkaMainSystem::new);
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}
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private AkkaMainSystem(ActorContext<Create> context) {
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super(context);
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super(context);
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this.timers = timers;
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}
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}
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@Override
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@Override
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public Receive<Create> createReceive() {
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public Receive<Message> createReceive() {
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return newReceiveBuilder().onMessage(Create.class, this::onCreate).build();
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return newReceiveBuilder()
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.onMessage(Create.class, this::onCreate)
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.onMessage(sendTimeOut.class, this::onSendTimeOut)
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.build();
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}
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}
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private Behavior<Create> onCreate(Create command) {
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private Behavior<Message> onSendTimeOut(sendTimeOut msg) {
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alice.tell(RelayActor.TimeOut.INSTANCE);
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bob.tell(RelayActor.TimeOut.INSTANCE);
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charlie.tell(RelayActor.TimeOut.INSTANCE);
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return this;
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}
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private Behavior<Message> onCreate(Create command) {
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//#create-actors
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//#create-actors
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ActorRef<ExampleActor.Message> a = this.getContext().spawn(ExampleActor.create("Alice"), "alice");
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alice = this.getContext().spawn(RelayActor.create(), "alice");
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ActorRef<ExampleTimerActor.Message> b = this.getContext().spawn(ExampleTimerActor.create(), "timeractor");
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bob = this.getContext().spawn(RelayActor.create(), "bob");
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charlie = this.getContext().spawn(RelayActor.create(), "charlie");
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//#create-actors
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//#create-actors
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a.tell(new ExampleActor.ExampleMessage(this.getContext().getSelf(),"Test123"));
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alice.tell(new RelayActor.Init(charlie, bob));
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bob.tell(new RelayActor.Init(alice, charlie));
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charlie.tell(new RelayActor.Init(bob, alice));
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timers.startSingleTimer(sendTimeOut.INSTANCE, Duration.ofSeconds(60));
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alice.tell(RelayActor.ClockWise.MSG);
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alice.tell(RelayActor.CounterClockWise.MSG);
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return this;
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return this;
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}
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}
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}
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}
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@ -5,7 +5,7 @@ import akka.actor.typed.ActorSystem;
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import java.io.IOException;
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import java.io.IOException;
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public class AkkaStart {
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public class AkkaStart {
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public static void main(String[] args) {
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public static void main(String[] args) {
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final ActorSystem<AkkaMainSystem.Create> messageMain = ActorSystem.create(AkkaMainSystem.create(), "akkaMainSystem");
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final ActorSystem<AkkaMainSystem.Message> messageMain = ActorSystem.create(AkkaMainSystem.create(), "akkaMainSystem");
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messageMain.tell(new AkkaMainSystem.Create());
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messageMain.tell(new AkkaMainSystem.Create());
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@ -1,35 +0,0 @@
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package com.example;
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import akka.actor.typed.ActorRef;
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import akka.actor.typed.Behavior;
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import akka.actor.typed.javadsl.*;
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public class ExampleActor extends AbstractBehavior<ExampleActor.Message> {
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public interface Message {};
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public record ExampleMessage(ActorRef<AkkaMainSystem.Create> someReference, String someString) implements Message { }
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public static Behavior<Message> create(String name) {
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return Behaviors.setup(context -> new ExampleActor(context, name));
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}
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private final String name;
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private ExampleActor(ActorContext<Message> context, String name) {
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super(context);
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this.name = name;
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}
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@Override
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public Receive<Message> createReceive() {
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return newReceiveBuilder()
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.onMessage(ExampleMessage.class, this::onExampleMessage)
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.build();
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}
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private Behavior<Message> onExampleMessage(ExampleMessage msg) {
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getContext().getLog().info("I ({}) got a message: ExampleMessage({},{})", this.name, msg.someReference, msg.someString);
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return this;
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}
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}
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@ -1,45 +0,0 @@
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package com.example;
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import akka.actor.typed.javadsl.TimerScheduler;
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import akka.actor.typed.Behavior;
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import akka.actor.typed.javadsl.AbstractBehavior;
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import akka.actor.typed.javadsl.ActorContext;
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import akka.actor.typed.javadsl.Behaviors;
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import akka.actor.typed.javadsl.Receive;
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import java.time.Duration;
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public class ExampleTimerActor extends AbstractBehavior<ExampleTimerActor.Message> {
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public interface Message {};
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public record ExampleMessage(String someString) implements Message { }
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public static Behavior<Message> create() {
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return Behaviors.setup(context -> Behaviors.withTimers(timers -> new ExampleTimerActor(context, timers)));
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}
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private final TimerScheduler<ExampleTimerActor.Message> timers;
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private ExampleTimerActor(ActorContext<Message> context, TimerScheduler<ExampleTimerActor.Message> timers) {
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super(context);
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this.timers = timers;
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Message msg = new ExampleMessage("test123");
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this.timers.startSingleTimer(msg, msg, Duration.ofSeconds(10));
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}
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@Override
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public Receive<Message> createReceive() {
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return newReceiveBuilder()
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.onMessage(ExampleMessage.class, this::onExampleMessage)
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.build();
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}
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private Behavior<Message> onExampleMessage(ExampleMessage msg) {
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getContext().getLog().info("I have send myself this message after 10 Seconds: {}", msg.someString);
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return this;
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}
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}
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@ -0,0 +1,81 @@
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package com.example;
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import akka.actor.typed.ActorRef;
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import akka.actor.typed.javadsl.TimerScheduler;
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import akka.actor.typed.Behavior;
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import akka.actor.typed.javadsl.AbstractBehavior;
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import akka.actor.typed.javadsl.ActorContext;
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import akka.actor.typed.javadsl.Behaviors;
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import akka.actor.typed.javadsl.Receive;
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import java.time.Duration;
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public class RelayActor extends AbstractBehavior<RelayActor.Message> {
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private ActorRef<Message> next;
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private ActorRef<Message> prev;
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public interface Message {};
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public record Init(ActorRef<RelayActor.Message> prev, ActorRef<RelayActor.Message> next) implements Message {}
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public enum ClockWise implements Message { MSG }
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public enum CounterClockWise implements Message { MSG }
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public enum sendClockWise implements Message { INSTANCE }
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public enum sendCounterClockWise implements Message { INSTANCE }
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public enum TimeOut implements Message {INSTANCE}
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public static Behavior<Message> create() {
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return Behaviors.setup(context -> Behaviors.withTimers(timers -> new RelayActor(context, timers)));
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}
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private final TimerScheduler<RelayActor.Message> timers;
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private RelayActor(ActorContext<Message> context, TimerScheduler<RelayActor.Message> timers) {
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super(context);
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this.timers = timers;
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}
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@Override
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public Receive<Message> createReceive() {
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return newReceiveBuilder()
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.onMessage(Init.class, this::onInit)
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.onMessage(ClockWise.class, this::onClockWise)
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.onMessage(CounterClockWise.class, this::onCounterClockWise)
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.onMessage(sendClockWise.class, this::onSendClockWise)
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.onMessage(sendCounterClockWise.class, this::onSendCounterClockWise)
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.onMessage(TimeOut.class, this::onTimeOut)
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.build();
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}
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private Behavior<Message> onInit(Init msg) {
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this.next = msg.next;
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this.prev = msg.prev;
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return this;
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}
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private Behavior<Message> onClockWise(ClockWise msg) {
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this.getContext().getLog().info("Got Clockwise");
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this.timers.startSingleTimer(sendClockWise.INSTANCE, Duration.ofSeconds(3));
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return this;
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}
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private Behavior<Message> onSendClockWise(sendClockWise msg) {
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this.next.tell(ClockWise.MSG);
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return this;
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}
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private Behavior<Message> onCounterClockWise(CounterClockWise msg) {
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this.getContext().getLog().info("Got CounterClockwise");
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this.timers.startSingleTimer(sendCounterClockWise.INSTANCE, Duration.ofSeconds(5));
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return this;
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}
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private Behavior<Message> onSendCounterClockWise(sendCounterClockWise msg) {
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this.prev.tell(CounterClockWise.MSG);
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return this;
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}
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private Behavior<Message> onTimeOut(TimeOut msg) {
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this.getContext().getLog().info("TimeOut");
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return Behaviors.stopped();
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}
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}
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