Package org.asmatron.messengine.engines

Examples of org.asmatron.messengine.engines.DefaultMessagingDelegate

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  @Test(timeout = 500)
  public void shouldListenFooMessage() throws Exception {
    final Semaphore lock = new Semaphore(0);
    final StringBuilder actualBody = new StringBuilder();
    final String expectedBody = "Hello World!";
    DefaultMessagingDelegate engine = new DefaultMessagingDelegate();
    engine.start();
    MessageListener<Message<String>> listener = new MessageListener<Message<String>>() {

      @Override
      public void onMessage(Message<String> message) {
        actualBody.append((String) message.getBody());
        lock.release();
      }
    };
    final String type = "test";
    engine.addMessageListener(type, listener);
    engine.send(new TestMessage<String>(type, expectedBody));
    lock.tryAcquire(3, TimeUnit.SECONDS);
    assertEquals(expectedBody, actualBody.toString());
    engine.stop();
  }
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  @Test(timeout = 1000)
  public void shouldListen1000FooMessages() throws Exception {
    final Semaphore lock = new Semaphore(0);
    final String expectedBody = "HELLO WORLD!";
    DefaultMessagingDelegate engine = new DefaultMessagingDelegate();
    engine.start();
    final AtomicInteger counter = new AtomicInteger();
    final MessageListener<Message<String>> listener = new MessageListener<Message<String>>() {
      @Override
      public void onMessage(Message<String> message) {
        counter.incrementAndGet();
        lock.release();
      }
    };
    final String type = "foo";
    Message<String> message = new TestMessage<String>(type, expectedBody);
    engine.addMessageListener(type, listener);
    final int totalMessages = 1000;
    for (int i = 0; i < totalMessages; i++) {
      engine.send(message);
    }
    lock.tryAcquire(totalMessages, 3, TimeUnit.SECONDS);
    assertEquals(totalMessages, counter.get());
    engine.stop();
  }
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  }

  @Test(timeout = 1000)
  public void shouldHaveManyListenersForTheSameMessageType() throws Exception {
    final Semaphore lock = new Semaphore(0);
    DefaultMessagingDelegate engine = new DefaultMessagingDelegate();
    engine.start();
    final AtomicInteger counter = new AtomicInteger();
    final MessageListener<Message<String>> listenerA = new MessageListener<Message<String>>() {
      @Override
      public void onMessage(Message<String> message) {
        counter.incrementAndGet();
        lock.release();
      }
    };
    final MessageListener<Message<String>> listenerB = new MessageListener<Message<String>>() {
      @Override
      public void onMessage(Message<String> message) {
        counter.incrementAndGet();
        lock.release();
      }
    };
    final String type = "foo";
    final String expectedBody = "HELLO WORLD!";
    Message<String> message = new TestMessage<String>(type, expectedBody);
    engine.addMessageListener(type, listenerA);
    engine.addMessageListener(type, listenerB);
    final int totalMessages = 1000;
    for (int i = 0; i < totalMessages; i++) {
      engine.send(message);
    }
    lock.tryAcquire(totalMessages * 2, 3, TimeUnit.SECONDS);
    assertEquals(totalMessages * 2, counter.get());
    engine.stop();
  }
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    engine.stop();
  }

  @Test
  public void shouldStopListeningToMessage() throws Exception {
    DefaultMessagingDelegate engine = new DefaultMessagingDelegate();
    engine.start();
    final AtomicInteger counter = new AtomicInteger();
    final MessageListener<Message<String>> listener = new MessageListener<Message<String>>() {
      @Override
      public void onMessage(Message<String> message) {
        counter.incrementAndGet();
      }
    };
    String type = "foo";
    engine.addMessageListener(type, listener);
    engine.send(new TestMessage<String>(type, "body"));
    Thread.sleep(100);
    engine.removeMessageListener(type, listener);
    engine.send(new TestMessage<String>(type, "body"));
    Thread.sleep(100);
    assertEquals(1, counter.get());
    engine.stop();
  }
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    engine.stop();
  }

  @Test
  public void shouldRequestAndBlockUntilResponse() throws Exception {
    final DefaultMessagingDelegate engine = new DefaultMessagingDelegate();
    engine.start();

    final int timeout = 5000;
    final int responseDelay = 1000;
    String responseType = "responseType";
    final Message<?> expectedResponse = new TestMessage<String>(responseType, "responseBody");
    Thread asyncResponseThread = new Thread(new Runnable() {
      @Override
      public void run() {
        try {
          Thread.sleep(responseDelay);
        } catch (InterruptedException e) {
        }
        engine.send(expectedResponse);
      }
    });
    long startTime = System.currentTimeMillis();

    Future<Message<?>> future = engine.request(new TestMessage<String>("requestType", "requestBody"), responseType,
        timeout);
    asyncResponseThread.start();
    Message<?> actualResponse = future.get();

    long totalTime = System.currentTimeMillis() - startTime;
    assertTrue(totalTime < timeout);
    assertTrue(totalTime >= responseDelay);
    assertEquals(expectedResponse, actualResponse);
    engine.stop();
  }
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    engine.stop();
  }

  @Test
  public void shouldRequestAndBlockUntilTimeout() throws Exception {
    final DefaultMessagingDelegate engine = new DefaultMessagingDelegate();
    engine.start();
    final int timeout = 300;
    long startTime = System.currentTimeMillis();

    Future<Message<?>> future = engine.request(new TestMessage<String>("requestType", "requestBody"), "responseType",
        timeout);
    Message<?> actualResponse = future.get();

    long totalTime = System.currentTimeMillis() - startTime;
    assertTrue(totalTime >= timeout);
    assertNull(actualResponse);
    engine.stop();
  }
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Related Classes of org.asmatron.messengine.engines.DefaultMessagingDelegate

  • org.asmatron.messengine.engines.components.MessageConsumer
  • org.asmatron.messengine.engines.components.ResponseLock
  • org.asmatron.messengine.engines.components.ResponseManager
  • org.asmatron.messengine.engines.IntegrationTestMessEngine
  • java.util.concurrent.atomic.AtomicBoolean
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