Example usage for org.springframework.integration.channel QueueChannel QueueChannel

Introduction

In this page you can find the example usage for org.springframework.integration.channel QueueChannel QueueChannel.

Prototype

public QueueChannel() 

Source Link

Document

Create a channel with "unbounded" queue capacity.

Usage

From source file:org.springframework.integration.handler.advice.AdvisedMessageHandlerTests.java

@Test
public void testInappropriateAdvice() throws Exception {
    final AtomicBoolean called = new AtomicBoolean(false);
    Advice advice = new AbstractRequestHandlerAdvice() {
        @Override// ww  w  .  jav a  2  s  .co m
        protected Object doInvoke(ExecutionCallback callback, Object target, Message<?> message)
                throws Exception {
            called.set(true);
            return callback.execute();
        }
    };
    PollableChannel inputChannel = new QueueChannel();
    PollingConsumer consumer = new PollingConsumer(inputChannel, new MessageHandler() {
        @Override
        public void handleMessage(Message<?> message) throws MessagingException {
        }
    });
    consumer.setAdviceChain(Collections.singletonList(advice));
    consumer.setTaskExecutor(
            new ErrorHandlingTaskExecutor(Executors.newSingleThreadExecutor(), new ErrorHandler() {
                @Override
                public void handleError(Throwable t) {
                }
            }));
    consumer.afterPropertiesSet();

    Callable<?> pollingTask = TestUtils.getPropertyValue(consumer, "poller.pollingTask", Callable.class);
    assertTrue(AopUtils.isAopProxy(pollingTask));
    Log logger = TestUtils.getPropertyValue(advice, "logger", Log.class);
    logger = spy(logger);
    when(logger.isWarnEnabled()).thenReturn(Boolean.TRUE);
    final AtomicReference<String> logMessage = new AtomicReference<String>();
    doAnswer(new Answer<Object>() {
        @Override
        public Object answer(InvocationOnMock invocation) throws Throwable {
            logMessage.set((String) invocation.getArguments()[0]);
            return null;
        }
    }).when(logger).warn(Mockito.anyString());
    DirectFieldAccessor accessor = new DirectFieldAccessor(advice);
    accessor.setPropertyValue("logger", logger);

    pollingTask.call();
    assertFalse(called.get());
    assertNotNull(logMessage.get());
    assertTrue(logMessage.get()
            .endsWith("can only be used for MessageHandlers; " + "an attempt to advise method 'call' in "
                    + "'org.springframework.integration.endpoint.AbstractPollingEndpoint$1' is ignored"));
}

---

From source file:org.springframework.integration.handler.advice.AdvisedMessageHandlerTests.java

public void filterDiscardNoAdvice() {
    MessageFilter filter = new MessageFilter(new MessageSelector() {
        @Override//from   www  . ja va  2  s  . c o m
        public boolean accept(Message<?> message) {
            return false;
        }
    });
    QueueChannel discardChannel = new QueueChannel();
    filter.setDiscardChannel(discardChannel);
    filter.handleMessage(new GenericMessage<String>("foo"));
    assertNotNull(discardChannel.receive(0));
}

---

From source file:org.springframework.integration.handler.advice.AdvisedMessageHandlerTests.java

@Test
public void filterDiscardWithinAdvice() {
    MessageFilter filter = new MessageFilter(new MessageSelector() {
        @Override/*from   www  . j  a  v a  2s . c  o m*/
        public boolean accept(Message<?> message) {
            return false;
        }
    });
    final QueueChannel discardChannel = new QueueChannel();
    filter.setDiscardChannel(discardChannel);
    List<Advice> adviceChain = new ArrayList<Advice>();
    final AtomicReference<Message<?>> discardedWithinAdvice = new AtomicReference<Message<?>>();
    adviceChain.add(new AbstractRequestHandlerAdvice() {
        @Override
        protected Object doInvoke(ExecutionCallback callback, Object target, Message<?> message)
                throws Exception {
            Object result = callback.execute();
            discardedWithinAdvice.set(discardChannel.receive(0));
            return result;
        }
    });
    filter.setAdviceChain(adviceChain);
    filter.afterPropertiesSet();
    filter.handleMessage(new GenericMessage<String>("foo"));
    assertNotNull(discardedWithinAdvice.get());
    assertNull(discardChannel.receive(0));
}

---

From source file:org.springframework.integration.handler.advice.AdvisedMessageHandlerTests.java

@Test
public void filterDiscardOutsideAdvice() {
    MessageFilter filter = new MessageFilter(new MessageSelector() {
        @Override//from   ww w  .  ja v  a  2 s .com
        public boolean accept(Message<?> message) {
            return false;
        }
    });
    final QueueChannel discardChannel = new QueueChannel();
    filter.setDiscardChannel(discardChannel);
    List<Advice> adviceChain = new ArrayList<Advice>();
    final AtomicReference<Message<?>> discardedWithinAdvice = new AtomicReference<Message<?>>();
    final AtomicBoolean adviceCalled = new AtomicBoolean();
    adviceChain.add(new AbstractRequestHandlerAdvice() {
        @Override
        protected Object doInvoke(ExecutionCallback callback, Object target, Message<?> message)
                throws Exception {
            Object result = callback.execute();
            discardedWithinAdvice.set(discardChannel.receive(0));
            adviceCalled.set(true);
            return result;
        }
    });
    filter.setAdviceChain(adviceChain);
    filter.setDiscardWithinAdvice(false);
    filter.afterPropertiesSet();
    filter.handleMessage(new GenericMessage<String>("foo"));
    assertTrue(adviceCalled.get());
    assertNull(discardedWithinAdvice.get());
    assertNotNull(discardChannel.receive(0));
}

---

From source file:org.springframework.integration.handler.AsyncHandlerTests.java

@Test
public void testGoodResultWithReplyChannelHeader() {
    this.whichTest = 0;
    this.handler.setOutputChannel(null);
    QueueChannel replyChannel = new QueueChannel();
    Message<?> message = MessageBuilder.withPayload("foo").setReplyChannel(replyChannel).build();
    this.handler.handleMessage(message);
    assertNull(replyChannel.receive(0));
    this.latch.countDown();
    Message<?> received = replyChannel.receive(10000);
    assertNotNull(received);//w  w  w .  ja v  a 2s  .  com
    assertEquals("reply", received.getPayload());
    assertNull(this.failedCallbackException);
}

---

From source file:org.springframework.integration.handler.AsyncHandlerTests.java

@Test
public void testGoodResultWithNoReplyChannelHeaderNoOutput() throws Exception {
    this.whichTest = 0;
    this.handler.setOutputChannel(null);
    QueueChannel errorChannel = new QueueChannel();
    Message<String> message = MessageBuilder.withPayload("foo").setErrorChannel(errorChannel).build();
    this.handler.handleMessage(message);
    assertNull(this.output.receive(0));
    this.latch.countDown();
    Message<?> errorMessage = errorChannel.receive(1000);
    assertNotNull(errorMessage);/*from w  w w. j a va  2 s. c om*/
    assertThat(errorMessage.getPayload(), instanceOf(DestinationResolutionException.class));
    assertEquals("no output-channel or replyChannel header available",
            ((Throwable) errorMessage.getPayload()).getMessage());
    assertNull(((MessagingException) errorMessage.getPayload()).getFailedMessage());
    assertNotNull(this.failedCallbackException);
    assertThat(this.failedCallbackException.getMessage(), containsString("or replyChannel header"));
}

---

From source file:org.springframework.integration.handler.AsyncHandlerTests.java

@Test
public void testRuntimeException() {
    QueueChannel errorChannel = new QueueChannel();
    Message<String> message = MessageBuilder.withPayload("foo").setErrorChannel(errorChannel).build();
    this.handler.handleMessage(message);
    assertNull(this.output.receive(0));
    this.whichTest = 1;
    this.latch.countDown();
    Message<?> received = errorChannel.receive(10000);
    assertNotNull(received);//  w w w .  ja  v a  2  s.  c  om
    assertThat(received.getPayload(), instanceOf(MessageHandlingException.class));
    assertEquals("foo", ((Throwable) received.getPayload()).getCause().getMessage());
    assertSame(message, ((MessagingException) received.getPayload()).getFailedMessage());
    assertNull(this.failedCallbackException);
}

---

From source file:org.springframework.integration.handler.AsyncHandlerTests.java

@Test
public void testMessagingException() {
    QueueChannel errorChannel = new QueueChannel();
    Message<String> message = MessageBuilder.withPayload("foo").setErrorChannel(errorChannel).build();
    this.handler.handleMessage(message);
    assertNull(this.output.receive(0));
    this.whichTest = 2;
    this.latch.countDown();
    Message<?> received = errorChannel.receive(10000);
    assertNotNull(received);/*  ww  w.  j  a v a  2 s  . co  m*/
    assertThat(received.getPayload(), instanceOf(MessagingException.class));
    assertSame(message, ((MessagingException) received.getPayload()).getFailedMessage());
    assertNull(this.failedCallbackException);
}

---

From source file:org.springframework.integration.http.inbound.HttpRequestHandlingControllerTests.java

@Test
public void sendOnly() throws Exception {
    QueueChannel requestChannel = new QueueChannel();
    HttpRequestHandlingController controller = new HttpRequestHandlingController(false);
    controller.setBeanFactory(mock(BeanFactory.class));
    controller.setRequestChannel(requestChannel);
    controller.setViewName("foo");
    controller.afterPropertiesSet();/*from  w w  w. j ava  2 s  . c  o m*/
    controller.start();

    MockHttpServletRequest request = new MockHttpServletRequest();
    request.setMethod("POST");
    request.setContent("hello".getBytes());

    //request.setContentType("text/plain"); //Works in Spring 3.1.2.RELEASE but NOT in 3.0.7.RELEASE
    //Instead do:
    request.addHeader("Content-Type", "text/plain");

    MockHttpServletResponse response = new MockHttpServletResponse();
    ModelAndView modelAndView = controller.handleRequest(request, response);
    assertEquals("foo", modelAndView.getViewName());
    assertEquals(0, modelAndView.getModel().size());
    Message<?> requestMessage = requestChannel.receive(0);
    assertNotNull(requestMessage);
    assertEquals("hello", requestMessage.getPayload());
}

---

From source file:org.springframework.integration.http.inbound.HttpRequestHandlingControllerTests.java

@Test
public void sendOnlyViewExpression() throws Exception {
    QueueChannel requestChannel = new QueueChannel();
    HttpRequestHandlingController controller = new HttpRequestHandlingController(false);
    controller.setBeanFactory(mock(BeanFactory.class));
    controller.setRequestChannel(requestChannel);
    Expression viewExpression = new SpelExpressionParser().parseExpression("'baz'");
    controller.setViewExpression(viewExpression);
    controller.afterPropertiesSet();//  w  w w.  j ava 2s.  com
    controller.start();

    MockHttpServletRequest request = new MockHttpServletRequest();
    request.setMethod("POST");
    request.setContent("hello".getBytes());

    //request.setContentType("text/plain"); //Works in Spring 3.1.2.RELEASE but NOT in 3.0.7.RELEASE
    //Instead do:
    request.addHeader("Content-Type", "text/plain");

    MockHttpServletResponse response = new MockHttpServletResponse();
    ModelAndView modelAndView = controller.handleRequest(request, response);
    assertEquals("baz", modelAndView.getViewName());
    assertEquals(0, modelAndView.getModel().size());
    Message<?> requestMessage = requestChannel.receive(0);
    assertNotNull(requestMessage);
    assertEquals("hello", requestMessage.getPayload());
}

---

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