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.aggregator.AggregatorTests.java

@Test
@Ignore//from   w ww. ja  v a  2 s  .c  o  m
// dropped backwards compatibility for setting capacity limit (it's always Integer.MAX_VALUE)
public void testTrackedCorrelationIdsCapacityAtLimit() {
    QueueChannel replyChannel = new QueueChannel();
    QueueChannel discardChannel = new QueueChannel();

    this.aggregator.setDiscardChannel(discardChannel);
    this.aggregator.handleMessage(createMessage(1, 1, 1, 1, replyChannel, null));
    assertEquals(1, replyChannel.receive(1000).getPayload());
    this.aggregator.handleMessage(createMessage(3, 2, 1, 1, replyChannel, null));
    assertEquals(3, replyChannel.receive(1000).getPayload());
    this.aggregator.handleMessage(createMessage(4, 3, 1, 1, replyChannel, null));
    assertEquals(4, replyChannel.receive(1000).getPayload());
    // next message with same correllation ID is discarded
    this.aggregator.handleMessage(createMessage(2, 1, 1, 1, replyChannel, null));
    assertEquals(2, discardChannel.receive(1000).getPayload());
}

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From source file:org.springframework.integration.aggregator.AggregatorTests.java

@Test
@Ignore/*from ww w.ja v a 2  s  . c  o m*/
// dropped backwards compatibility for setting capacity limit (it's always Integer.MAX_VALUE)
public void testTrackedCorrelationIdsCapacityPassesLimit() {
    QueueChannel replyChannel = new QueueChannel();
    QueueChannel discardChannel = new QueueChannel();

    this.aggregator.setDiscardChannel(discardChannel);
    this.aggregator.handleMessage(createMessage(1, 1, 1, 1, replyChannel, null));
    assertEquals(1, replyChannel.receive(1000).getPayload());
    this.aggregator.handleMessage(createMessage(2, 2, 1, 1, replyChannel, null));
    assertEquals(2, replyChannel.receive(1000).getPayload());
    this.aggregator.handleMessage(createMessage(3, 3, 1, 1, replyChannel, null));
    assertEquals(3, replyChannel.receive(1000).getPayload());
    this.aggregator.handleMessage(createMessage(4, 4, 1, 1, replyChannel, null));
    assertEquals(4, replyChannel.receive(1000).getPayload());
    this.aggregator.handleMessage(createMessage(5, 1, 1, 1, replyChannel, null));
    assertEquals(5, replyChannel.receive(1000).getPayload());
    assertNull(discardChannel.receive(0));
}

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From source file:org.springframework.integration.aggregator.AggregatorTests.java

@Test(expected = MessageHandlingException.class)
public void testExceptionThrownIfNoCorrelationId() throws InterruptedException {
    Message<?> message = createMessage(3, null, 2, 1, new QueueChannel(), null);
    this.aggregator.handleMessage(message);
}

---

From source file:org.springframework.integration.aggregator.AggregatorTests.java

@Test
public void testAdditionalMessageAfterCompletion() throws InterruptedException {
    QueueChannel replyChannel = new QueueChannel();
    Message<?> message1 = createMessage(3, "ABC", 3, 1, replyChannel, null);
    Message<?> message2 = createMessage(5, "ABC", 3, 2, replyChannel, null);
    Message<?> message3 = createMessage(7, "ABC", 3, 3, replyChannel, null);
    Message<?> message4 = createMessage(7, "ABC", 3, 3, replyChannel, null);

    this.aggregator.handleMessage(message1);
    this.aggregator.handleMessage(message2);
    this.aggregator.handleMessage(message3);
    this.aggregator.handleMessage(message4);

    Message<?> reply = replyChannel.receive(10000);
    assertNotNull("A message should be aggregated", reply);
    assertThat(((Integer) reply.getPayload()), is(105));
}

---

From source file:org.springframework.integration.aggregator.AggregatorTests.java

@Test
public void shouldRejectDuplicatedSequenceNumbers() throws InterruptedException {
    QueueChannel replyChannel = new QueueChannel();
    Message<?> message1 = createMessage(3, "ABC", 3, 1, replyChannel, null);
    Message<?> message2 = createMessage(5, "ABC", 3, 2, replyChannel, null);
    Message<?> message3 = createMessage(7, "ABC", 3, 3, replyChannel, null);
    Message<?> message4 = createMessage(7, "ABC", 3, 3, replyChannel, null);
    this.aggregator.setReleaseStrategy(new SequenceSizeReleaseStrategy());

    this.aggregator.handleMessage(message1);
    this.aggregator.handleMessage(message3);
    // duplicated sequence number, either message3 or message4 should be rejected
    this.aggregator.handleMessage(message4);
    this.aggregator.handleMessage(message2);

    Message<?> reply = replyChannel.receive(10000);
    assertNotNull("A message should be aggregated", reply);
    assertThat(((Integer) reply.getPayload()), is(105));
}

---

From source file:org.springframework.integration.aggregator.BarrierMessageHandlerTests.java

@Test
public void testRequestBeforeReply() throws Exception {
    final BarrierMessageHandler handler = new BarrierMessageHandler(10000);
    QueueChannel outputChannel = new QueueChannel();
    handler.setOutputChannel(outputChannel);
    handler.setBeanFactory(mock(BeanFactory.class));
    handler.afterPropertiesSet();/* ww  w. ja v  a  2s . c  o  m*/
    final AtomicReference<Exception> dupCorrelation = new AtomicReference<Exception>();
    final CountDownLatch latch = new CountDownLatch(1);
    Runnable runnable = () -> {
        try {
            handler.handleMessage(MessageBuilder.withPayload("foo").setCorrelationId("foo").build());
        } catch (MessagingException e) {
            dupCorrelation.set(e);
        }
        latch.countDown();
    };
    ExecutorService exec = Executors.newCachedThreadPool();
    exec.execute(runnable);
    exec.execute(runnable);
    Map<?, ?> suspensions = TestUtils.getPropertyValue(handler, "suspensions", Map.class);
    int n = 0;
    while (n++ < 100 && suspensions.size() == 0) {
        Thread.sleep(100);
    }
    Map<?, ?> inProcess = TestUtils.getPropertyValue(handler, "inProcess", Map.class);
    assertEquals(1, inProcess.size());
    assertTrue("suspension did not appear in time", n < 100);
    assertTrue(latch.await(10, TimeUnit.SECONDS));
    assertNotNull(dupCorrelation.get());
    assertThat(dupCorrelation.get().getMessage(), startsWith("Correlation key (foo) is already in use by"));
    handler.trigger(MessageBuilder.withPayload("bar").setCorrelationId("foo").build());
    Message<?> received = outputChannel.receive(10000);
    assertNotNull(received);
    List<?> result = (List<?>) received.getPayload();
    assertEquals("foo", result.get(0));
    assertEquals("bar", result.get(1));
    assertEquals(0, suspensions.size());
    assertEquals(0, inProcess.size());
}

---

From source file:org.springframework.integration.aggregator.BarrierMessageHandlerTests.java

@Test
public void testReplyBeforeRequest() throws Exception {
    final BarrierMessageHandler handler = new BarrierMessageHandler(10000);
    QueueChannel outputChannel = new QueueChannel();
    handler.setOutputChannel(outputChannel);
    handler.setBeanFactory(mock(BeanFactory.class));
    handler.afterPropertiesSet();/* w w  w . j av a  2 s.c o m*/
    Executors.newSingleThreadExecutor()
            .execute(() -> handler.trigger(MessageBuilder.withPayload("bar").setCorrelationId("foo").build()));
    Map<?, ?> suspensions = TestUtils.getPropertyValue(handler, "suspensions", Map.class);
    int n = 0;
    while (n++ < 100 && suspensions.size() == 0) {
        Thread.sleep(100);
    }
    assertTrue("suspension did not appear in time", n < 100);
    handler.handleMessage(MessageBuilder.withPayload("foo").setCorrelationId("foo").build());
    Message<?> received = outputChannel.receive(10000);
    assertNotNull(received);
    List<?> result = (ArrayList<?>) received.getPayload();
    assertEquals("foo", result.get(0));
    assertEquals("bar", result.get(1));
    assertEquals(0, suspensions.size());
}

---

From source file:org.springframework.integration.aggregator.BarrierMessageHandlerTests.java

@Test
public void testLateReply() throws Exception {
    final BarrierMessageHandler handler = new BarrierMessageHandler(0);
    QueueChannel outputChannel = new QueueChannel();
    QueueChannel discardChannel = new QueueChannel();
    handler.setOutputChannel(outputChannel);
    handler.setDiscardChannelName("discards");
    handler.setChannelResolver(s -> discardChannel);
    handler.setBeanFactory(mock(BeanFactory.class));
    handler.afterPropertiesSet();//from   w w w . ja  v  a2s  . c o m
    final CountDownLatch latch = new CountDownLatch(1);
    Executors.newSingleThreadExecutor().execute(() -> {
        handler.handleMessage(MessageBuilder.withPayload("foo").setCorrelationId("foo").build());
        latch.countDown();
    });
    Map<?, ?> suspensions = TestUtils.getPropertyValue(handler, "suspensions", Map.class);
    assertTrue(latch.await(10, TimeUnit.SECONDS));
    assertEquals("suspension not removed", 0, suspensions.size());
    Log logger = spy(TestUtils.getPropertyValue(handler, "logger", Log.class));
    new DirectFieldAccessor(handler).setPropertyValue("logger", logger);
    final Message<String> triggerMessage = MessageBuilder.withPayload("bar").setCorrelationId("foo").build();
    handler.trigger(triggerMessage);
    ArgumentCaptor<String> captor = ArgumentCaptor.forClass(String.class);
    verify(logger).error(captor.capture());
    assertThat(captor.getValue(),
            allOf(containsString("Suspending thread timed out or did not arrive within timeout for:"),
                    containsString("payload=bar")));
    assertEquals(0, suspensions.size());
    Message<?> discard = discardChannel.receive(0);
    assertSame(discard, triggerMessage);
    handler.handleMessage(MessageBuilder.withPayload("foo").setCorrelationId("foo").build());
    assertEquals(0, suspensions.size());
}

---

From source file:org.springframework.integration.aggregator.BarrierMessageHandlerTests.java

@Test
public void testRequiresReply() throws Exception {
    final BarrierMessageHandler handler = new BarrierMessageHandler(0);
    QueueChannel outputChannel = new QueueChannel();
    handler.setOutputChannel(outputChannel);
    handler.setBeanFactory(mock(BeanFactory.class));
    handler.setRequiresReply(true);/*from   w w w. j a  v  a 2s.  co m*/
    handler.afterPropertiesSet();
    try {
        handler.handleMessage(MessageBuilder.withPayload("foo").setCorrelationId("foo").build());
        fail("exception expected");
    } catch (Exception e) {
        assertThat(e, Matchers.instanceOf(ReplyRequiredException.class));
    }
}

---

From source file:org.springframework.integration.aggregator.BarrierMessageHandlerTests.java

@Test
public void testExceptionReply() throws Exception {
    final BarrierMessageHandler handler = new BarrierMessageHandler(10000);
    QueueChannel outputChannel = new QueueChannel();
    handler.setOutputChannel(outputChannel);
    handler.setBeanFactory(mock(BeanFactory.class));
    handler.afterPropertiesSet();/*from w  ww . ja v a2s.co  m*/
    final AtomicReference<Exception> exception = new AtomicReference<Exception>();
    final CountDownLatch latch = new CountDownLatch(1);
    Executors.newSingleThreadExecutor().execute(() -> {
        try {
            handler.handleMessage(MessageBuilder.withPayload("foo").setCorrelationId("foo").build());
        } catch (Exception e) {
            exception.set(e);
            latch.countDown();
        }
    });
    Map<?, ?> suspensions = TestUtils.getPropertyValue(handler, "suspensions", Map.class);
    int n = 0;
    while (n++ < 100 && suspensions.size() == 0) {
        Thread.sleep(100);
    }
    assertTrue("suspension did not appear in time", n < 100);
    Exception exc = new RuntimeException();
    handler.trigger(MessageBuilder.withPayload(exc).setCorrelationId("foo").build());
    assertTrue(latch.await(10, TimeUnit.SECONDS));
    assertSame(exc, exception.get().getCause());
    assertEquals(0, suspensions.size());
}

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