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(int capacity) 

Source Link

Document

Create a channel with the specified queue capacity.

Usage

From source file:biz.c24.io.spring.integration.config.FileSplitterTests.java

@Before
public void setUp() {
    feedChannel = new QueueChannel(100);
    transformer = new C24FileSplittingTransformer(feedChannel);
    resource = new ClassPathResource("datafixtures/10-lines.txt");
}

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From source file:org.bpmscript.integration.spring.SpringIntegrationTest.java

public void testSpringIntegration() throws Exception {
    final CountDownLatch latch = new CountDownLatch(2);
    MessageBus messageBus = new MessageBus();
    QueueChannel oneChannel = new QueueChannel(10);
    QueueChannel twoChannel = new QueueChannel(10);
    messageBus.registerChannel("onechannel", oneChannel);
    messageBus.registerChannel("twochannel", twoChannel);
    messageBus.registerHandler("onehandler", new MessageHandler() {

        public Message<?> handle(Message<?> message) {
            log.info(message.getPayload());
            latch.countDown();//www .  ja v  a  2s  .  c om
            return new StringMessage("Hi...");
        }

    }, new Subscription(oneChannel));
    messageBus.registerHandler("twohandler", new MessageHandler() {

        public Message<?> handle(Message<?> message) {
            log.info(message.getPayload());
            latch.countDown();
            return null;
        }

    }, new Subscription(twoChannel));
    messageBus.start();
    StringMessage stringMessage = new StringMessage("Hello World!");
    stringMessage.getHeader().setReturnAddress("twochannel");
    oneChannel.send(stringMessage);
    assertTrue(latch.await(2, TimeUnit.SECONDS));
    messageBus.stop();
}

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From source file:eric.bottard.tis100.Runner.java

public Runner(int rows, int columns, String specificationFile, File solution) throws IOException {

    Specification specification = new LuaSpecification(specificationFile, rows, columns);

    List<String> nodeSources = loadSolution(solution, specification.getLayout());

    this.rows = rows;
    this.columns = columns;

    verticalChannels = new MessageChannel[columns * (rows + 1) * 2];
    horizontalChannels = new MessageChannel[rows * (columns + 1) * 2];

    // channels[2*x] = ltr / down-to-up
    // channels[2*x + 1] = rtl / up-to-down
    for (int row = 0; row <= rows; row++) {
        for (int column = 0; column < columns; column++) {
            verticalChannels[(row * columns + column) * 2] = (row == 0 || row == rows) ? new NullChannel()
                    : new RendezvousChannel();
            if (row == 0) {
                verticalChannels[(row * columns + column) * 2 + 1] = new QueueChannel(40);
            } else if (row == rows) {
                verticalChannels[(row * columns + column) * 2 + 1] = new PublishSubscribeChannel();
            } else {
                verticalChannels[(row * columns + column) * 2 + 1] = new RendezvousChannel();
            }// w w  w  . j  av  a  2 s.co  m
        }
    }

    for (int row = 0; row < rows; row++) {
        for (int column = 0; column <= columns; column++) {
            horizontalChannels[(column * rows + row) * 2] = (column == 0 || column == columns)
                    ? new NullChannel()
                    : new RendezvousChannel();
            horizontalChannels[(column * rows + row) * 2 + 1] = (column == 0 || column == columns)
                    ? new NullChannel()
                    : new RendezvousChannel();
        }
    }

    Thread[] threads = new Thread[rows * columns];
    Object mutex = new Object();

    for (int row = 0; row < rows; row++) {
        for (int column = 0; column < columns; column++) {
            final SpringNode node = NodeFactory.buildNode(nodeSources.get(row * columns + column));
            final NodePrettyPrinter printer = new NodePrettyPrinter(4 + row * 19,
                    SpecificationPrettyPrinter.WIDTH + 10 + column * 37, node);
            Ports ports = new PortsMapping(row, column);
            node.setPorts(ports);
            nodes.add(node);
            threads[row * columns + column] = new Thread() {
                @Override
                public void run() {

                    boolean more;
                    do {
                        synchronized (mutex) {
                            printer.draw(System.out);
                        }
                        try {
                            Thread.sleep(150);
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                        more = node.tick();
                    } while (more);
                }
            };
        }
    }

    List<Integer>[] actuals = new List[columns];
    SpecificationPrettyPrinter specificationPrettyPrinter = new SpecificationPrettyPrinter(specification, 2, 2,
            actuals);

    for (int i = 0; i < columns; i++) {
        Specification.Stream stream = specification.getInputStreams()[i];
        if (stream != null) {
            for (Integer in : stream.getData()) {
                verticalChannels[1 + 2 * i].send(new GenericMessage<>(in));
            }
        }
        stream = specification.getOutputStreams()[i];
        final List<Integer> actual = actuals[i] = new ArrayList<>();
        if (stream != null) {
            ((SubscribableChannel) verticalChannels[1 + 2 * (i + rows * columns)])
                    .subscribe(new MessageHandler() {
                        @Override
                        public void handleMessage(Message<?> message) throws MessagingException {
                            actual.add((Integer) message.getPayload());
                            synchronized (mutex) {
                                specificationPrettyPrinter.draw(System.out);
                            }
                        }
                    });
        }
    }
    synchronized (mutex) {
        specificationPrettyPrinter.draw(System.out);
    }

    for (int i = 0; i < rows * columns; i++) {
        threads[i].start();
    }

}

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From source file:hello.CrawlerApp.java

@Bean
public MessageChannel channel1() {
    return new QueueChannel(10);
}

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From source file:hello.CrawlerApp.java

@Bean
public MessageChannel channel4() {
    return new QueueChannel(10);
}

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From source file:org.springframework.integration.channel.QueueChannelTests.java

@Test
public void testImmediateSend() {
    QueueChannel channel = new QueueChannel(3);
    boolean result1 = channel.send(new GenericMessage<String>("test-1"));
    assertTrue(result1);//w  ww. j a v a  2  s. co m
    boolean result2 = channel.send(new GenericMessage<String>("test-2"), 100);
    assertTrue(result2);
    boolean result3 = channel.send(new GenericMessage<String>("test-3"), 0);
    assertTrue(result3);
    boolean result4 = channel.send(new GenericMessage<String>("test-4"), 0);
    assertFalse(result4);
}

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From source file:org.springframework.integration.channel.QueueChannelTests.java

@Test
public void testBlockingSendWithNoTimeout() throws Exception {
    final QueueChannel channel = new QueueChannel(1);
    boolean result1 = channel.send(new GenericMessage<String>("test-1"));
    assertTrue(result1);/*from  w  w w . j  av  a 2 s.  com*/
    final AtomicBoolean sendInterrupted = new AtomicBoolean(false);
    final CountDownLatch latch = new CountDownLatch(1);
    Thread t = new Thread(new Runnable() {
        @Override
        public void run() {
            channel.send(new GenericMessage<String>("test-2"));
            sendInterrupted.set(true);
            latch.countDown();
        }
    });
    t.start();
    assertFalse(sendInterrupted.get());
    t.interrupt();
    latch.await();
    assertTrue(sendInterrupted.get());
}

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From source file:org.springframework.integration.channel.QueueChannelTests.java

@Test
public void testBlockingSendWithTimeout() throws Exception {
    final QueueChannel channel = new QueueChannel(1);
    boolean result1 = channel.send(new GenericMessage<String>("test-1"));
    assertTrue(result1);//from  ww w .ja v  a2 s  .  co  m
    final AtomicBoolean sendInterrupted = new AtomicBoolean(false);
    final CountDownLatch latch = new CountDownLatch(1);
    Thread t = new Thread(new Runnable() {
        @Override
        public void run() {
            channel.send(new GenericMessage<String>("test-2"), 10000);
            sendInterrupted.set(true);
            latch.countDown();
        }
    });
    t.start();
    assertFalse(sendInterrupted.get());
    t.interrupt();
    latch.await();
    assertTrue(sendInterrupted.get());
}

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From source file:org.springframework.integration.channel.QueueChannelTests.java

@Test
public void testClear() {
    QueueChannel channel = new QueueChannel(2);
    GenericMessage<String> message1 = new GenericMessage<String>("test1");
    GenericMessage<String> message2 = new GenericMessage<String>("test2");
    GenericMessage<String> message3 = new GenericMessage<String>("test3");
    assertTrue(channel.send(message1));// ww w .  j ava  2 s  .c o  m
    assertTrue(channel.send(message2));
    assertFalse(channel.send(message3, 0));
    List<Message<?>> clearedMessages = channel.clear();
    assertNotNull(clearedMessages);
    assertEquals(2, clearedMessages.size());
    assertTrue(channel.send(message3));
}

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From source file:org.springframework.integration.channel.QueueChannelTests.java

@Test
public void testPurge() {
    QueueChannel channel = new QueueChannel(2);
    long minute = 60 * 1000;
    long time = System.currentTimeMillis();
    long past = time - minute;
    long future = time + minute;
    Message<String> expiredMessage = MessageBuilder.withPayload("test1").setExpirationDate(past).build();
    Message<String> unexpiredMessage = MessageBuilder.withPayload("test2").setExpirationDate(future).build();
    assertTrue(channel.send(expiredMessage, 0));
    assertTrue(channel.send(unexpiredMessage, 0));
    assertFalse(channel.send(new GenericMessage<String>("atCapacity"), 0));
    List<Message<?>> purgedMessages = channel.purge(new UnexpiredMessageSelector());
    assertNotNull(purgedMessages);//from  www .  j ava2  s.co  m
    assertEquals(1, purgedMessages.size());
    assertTrue(channel.send(new GenericMessage<String>("roomAvailable"), 0));
}

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