Akka/Scala example source code file (InitializationDocTest.java)

This example Akka source code file (InitializationDocTest.java) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Akka and Scala source code examples by using tags.

All credit for the original source code belongs to akka.io; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Akka tags/keywords

abstractactor, actorsystem, afterclass, akka, concurrent, duration, initializationdoctest, messageinitexample, ok, string, test, testing, time, u, up

The InitializationDocTest.java Akka example source code

/**
 * Copyright (C) 2009-2014 Typesafe Inc. <http://www.typesafe.com>
 */

package docs.actor;

import akka.actor.*;
import akka.japi.pf.ReceiveBuilder;
import akka.testkit.JavaTestKit;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import scala.PartialFunction;
import scala.concurrent.duration.Duration;
import scala.runtime.BoxedUnit;

import java.util.concurrent.TimeUnit;

public class InitializationDocTest {

  static ActorSystem system = null;

  @BeforeClass
  public static void beforeClass() {
    system = ActorSystem.create("InitializationDocTest");
  }

  @AfterClass
  public static void afterClass() {
    system.shutdown();
    system.awaitTermination(Duration.create("5 seconds"));
  }

  public static class MessageInitExample extends AbstractActor {
    private String initializeMe = null;

    public MessageInitExample() {
      //#messageInit
      receive(ReceiveBuilder.
        matchEquals("init", m1 -> {
          initializeMe = "Up and running";
          context().become(ReceiveBuilder.
            matchEquals("U OK?", m2 -> {
              sender().tell(initializeMe, self());
            }).build());
        }).build()
      //#messageInit
      );
    }
  }

  @Test
  public void testIt() {

    new JavaTestKit(system) {{
      ActorRef testactor = system.actorOf(Props.create(MessageInitExample.class), "testactor");
      String msg = "U OK?";

      testactor.tell(msg, getRef());
      expectNoMsg(Duration.create(1, TimeUnit.SECONDS));

      testactor.tell("init", getRef());
      testactor.tell(msg, getRef());
      expectMsgEquals("Up and running");
    }};
  }
}