Aufgabe 2.4

src/main/java/com/example/Greeter.java

@@ -53,12 +53,16 @@ public class Greeter extends AbstractBehavior<Greeter.Greet> {
 // #greeter
   }
 
-  public static Behavior<Greet> create() {
-    return Behaviors.setup(Greeter::new);
+  private final int max;
+  private int greetingCounter;
+
+  public static Behavior<Greet> create(int max) {
+    return Behaviors.setup(context -> new Greeter(context, max));
   }
 
-  private Greeter(ActorContext<Greet> context) {
+  private Greeter(ActorContext<Greet> context, int max) {
     super(context);
+    this.max = max;
   }
 
   @Override
@@ -67,11 +71,16 @@ public class Greeter extends AbstractBehavior<Greeter.Greet> {
   }
 
   private Behavior<Greet> onGreet(Greet command) {
-    getContext().getLog().info("Hello {}!", command.whom);
-    //#greeter-send-message
-    command.replyTo.tell(new Greeted(command.whom, getContext().getSelf()));
-    //#greeter-send-message
-    return this;
+    this.greetingCounter++;
+    getContext().getLog().info("Hello {}! ({})", command.whom, this.greetingCounter);
+    if (this.greetingCounter == max) {
+      return Behaviors.stopped();
+    } else {
+      //#greeter-send-message
+      command.replyTo.tell(new Greeted(command.whom, getContext().getSelf()));
+      //#greeter-send-message
+      return this;
+    }
   }
 }
 // #greeter

src/main/java/com/example/GreeterBot.java

@@ -5,16 +5,12 @@ import akka.actor.typed.javadsl.*;
 
 public class GreeterBot extends AbstractBehavior<Greeter.Greeted> {
 
-    public static Behavior<Greeter.Greeted> create(int max) {
-        return Behaviors.setup(context -> new GreeterBot(context, max));
+    public static Behavior<Greeter.Greeted> create() {
+        return Behaviors.setup(GreeterBot::new);
     }
 
-    private final int max;
-    private int greetingCounter;
-
-    private GreeterBot(ActorContext<Greeter.Greeted> context, int max) {
+    private GreeterBot(ActorContext<Greeter.Greeted> context) {
         super(context);
-        this.max = max;
     }
 
     @Override
@@ -23,13 +19,8 @@ public class GreeterBot extends AbstractBehavior<Greeter.Greeted> {
     }
 
     private Behavior<Greeter.Greeted> onGreeted(Greeter.Greeted message) {
-        greetingCounter++;
-        getContext().getLog().info("Greeting {} for {}", greetingCounter, message.whom);
-        if (greetingCounter == max) {
-            return Behaviors.stopped();
-        } else {
+        getContext().getLog().info("Greeting for {}", message.whom);
             message.from.tell(new Greeter.Greet(message.whom, getContext().getSelf()));
             return this;
-        }
     }
 }

src/main/java/com/example/GreeterMain.java

@@ -23,7 +23,7 @@ public class GreeterMain extends AbstractBehavior<GreeterMain.SayHello> {
     private GreeterMain(ActorContext<SayHello> context) {
         super(context);
         //#create-actors
-        greeter = context.spawn(Greeter.create(), "greeter");
+        greeter = context.spawn(Greeter.create(6), "greeter");
         //#create-actors
     }
 
@@ -35,7 +35,7 @@ public class GreeterMain extends AbstractBehavior<GreeterMain.SayHello> {
     private Behavior<SayHello> onSayHello(SayHello command) {
         //#create-actors
         ActorRef<Greeter.Greeted> replyTo =
-                getContext().spawn(GreeterBot.create(6), command.name);
+                getContext().spawn(GreeterBot.create(), command.name);
         greeter.tell(new Greeter.Greet(command.name, replyTo));
         //#create-actors
         return this;