Example usage for com.rabbitmq.client Channel queueDeclare

Introduction

In this page you can find the example usage for com.rabbitmq.client Channel queueDeclare.

Prototype

Queue.DeclareOk queueDeclare() throws IOException;

Source Link

Document

Actively declare a server-named exclusive, autodelete, non-durable queue.

Usage

From source file:org.apache.flume.amqp.AmqpConsumerTest.java

License:Apache License

@Test
public void testDeclarationsForChannel_NoQueueNameAndBindings() throws Exception {
    AmqpConsumer consumer = builder.setQueueName(null).build();

    AMQP.Queue.DeclareOk declareOk = mock(AMQP.Queue.DeclareOk.class);
    when(declareOk.getQueue()).thenReturn("queue");

    Channel channel = mock(Channel.class);
    when(channel.queueDeclare()).thenReturn(declareOk);
    consumer.declarationsForChannel(channel);

    verify(channel).exchangeDeclare(EXCHANGE_NAME, Constants.AMQP.DIRECT_EXCHANGE, DURABLE_EXCHANGE);
    verify(channel).basicQos(PREFETCH_SIZE);
    verify(channel).queueDeclare();/*from w w  w .  j  a v  a2 s .  c o  m*/
    verify(channel).queueBind("queue", EXCHANGE_NAME, BINDING_KEY_1);
    verify(channel).queueBind("queue", EXCHANGE_NAME, BINDING_KEY_2);
}

From source file:org.apache.flume.amqp.AmqpConsumerTest.java

License:Apache License

@Test
public void testDeclarationsForChannel_NoQueueNameAndNoBindings() throws Exception {
    AmqpConsumer consumer = builder.setQueueName(null).setBindings(new String[] {}).build();

    AMQP.Queue.DeclareOk declareOk = mock(AMQP.Queue.DeclareOk.class);
    when(declareOk.getQueue()).thenReturn("queue");

    Channel channel = mock(Channel.class);
    when(channel.queueDeclare()).thenReturn(declareOk);
    consumer.declarationsForChannel(channel);

    verify(channel).exchangeDeclare(EXCHANGE_NAME, Constants.AMQP.DIRECT_EXCHANGE, DURABLE_EXCHANGE);
    verify(channel).basicQos(PREFETCH_SIZE);
    verify(channel).queueDeclare();/*w  w  w.j  ava2s  . c o  m*/
    verify(channel).queueBind("queue", EXCHANGE_NAME, Constants.AMQP.SERVER_GENERATED_QUEUE_NAME);
}

From source file:org.apache.helix.recipes.rabbitmq.ConsumerThread.java

License:Apache License

@Override
public void run() {
    Connection connection = null;
    try {/* www  . ja v a 2s .  c om*/
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost(_mqServer);
        connection = factory.newConnection();
        Channel channel = connection.createChannel();

        channel.exchangeDeclare(EXCHANGE_NAME, "topic");
        String queueName = channel.queueDeclare().getQueue();

        String bindingKey = _partition.toString();
        channel.queueBind(queueName, EXCHANGE_NAME, bindingKey);

        System.out.println(
                " [*] " + _consumerId + " Waiting for messages on " + bindingKey + ". To exit press CTRL+C");

        QueueingConsumer consumer = new QueueingConsumer(channel);
        channel.basicConsume(queueName, true, consumer);

        while (true) {
            QueueingConsumer.Delivery delivery = consumer.nextDelivery();
            String message = new String(delivery.getBody());
            String routingKey = delivery.getEnvelope().getRoutingKey();

            System.out.println(" [x] " + _consumerId + " Received '" + routingKey + "':'" + message + "'");
        }
    } catch (InterruptedException e) {
        System.err.println(" [-] " + _consumerId + " on " + _partition + " is interrupted ...");
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }
}

From source file:org.axonframework.amqp.eventhandling.RabbitMQBenchmark.java

License:Apache License

public static void main(String[] args) throws IOException, InterruptedException, TimeoutException {
    final Connection connection = new ConnectionFactory().newConnection();
    final Channel channel = connection.createChannel();
    String queueName = channel.queueDeclare().getQueue();
    execute("Transactional and Channel pooling", createChannelPoolSharingThreads(connection, queueName));
    queueName = refreshQueue(channel, queueName);
    execute("Transactional, new Channel per tx", createChannelCreatingThreads(connection, queueName, true));
    queueName = refreshQueue(channel, queueName);
    execute("Non-transactional, new Channel per tx",
            createChannelCreatingThreads(connection, queueName, false));
    queueName = refreshQueue(channel, queueName);
    execute("Non-transactional, single Channel", createChannelSharingThreads(connection, queueName));
    channel.confirmSelect();//w w  w  .j  a v a  2s . co m
    connection.close();
}

From source file:org.axonframework.amqp.eventhandling.RabbitMQBenchmark.java

License:Apache License

private static String refreshQueue(Channel channel, String queueName) throws IOException {
    channel.queueDelete(queueName);/*from w  w  w .  j  a  v a 2s  .  c o  m*/
    queueName = channel.queueDeclare().getQueue();
    return queueName;
}

From source file:org.axonframework.eventhandling.amqp.RabbitMQBenchmark.java

License:Apache License

public static void main(String[] args) throws IOException, InterruptedException {
    final Connection connection = new ConnectionFactory().newConnection();
    final Channel channel = connection.createChannel();
    String queueName = channel.queueDeclare().getQueue();
    execute("Transactional and Channel pooling", createChannelPoolSharingThreads(connection, queueName));
    queueName = refreshQueue(channel, queueName);
    execute("Transactional, new Channel per tx", createChannelCreatingThreads(connection, queueName, true));
    queueName = refreshQueue(channel, queueName);
    execute("Non-transactional, new Channel per tx",
            createChannelCreatingThreads(connection, queueName, false));
    queueName = refreshQueue(channel, queueName);
    execute("Non-transactional, single Channel", createChannelSharingThreads(connection, queueName));
    channel.confirmSelect();//w  w w.  j av  a2s .  co  m
    connection.close();
}

From source file:org.ballerinalang.messaging.rabbitmq.util.ChannelUtils.java

License:Open Source License

/**
 * Declares a queue with an auto-generated queue name.
 *
 * @param channel RabbitMQ Channel object.
 * @return An auto-generated queue name.
 *///from w  w  w.  j  a  va 2  s  .co m
public static String queueDeclare(Channel channel) {
    try {
        return channel.queueDeclare().getQueue();
    } catch (IOException exception) {
        String errorMessage = "An error occurred while auto-declaring the queue ";
        throw new BallerinaException(errorMessage + exception.getMessage(), exception);
    }
}

From source file:org.mule.transport.amqp.AmqpEndpointUtil.java

License:Open Source License

public static String getOrCreateQueue(final Channel channel, final ImmutableEndpoint endpoint,
        final boolean activeDeclarationsOnly) throws IOException {
    final String exchangeName = getOrCreateExchange(channel, endpoint, activeDeclarationsOnly);
    final String routingKey = getRoutingKey(endpoint);

    if ((StringUtils.isBlank(exchangeName)) && (StringUtils.isNotBlank(routingKey))) {
        // no exchange name -> enforce routing key to be empty
        throw new MuleRuntimeException(MessageFactory.createStaticMessage(
                "An exchange name must be provided if a routing key is provided in endpoint: " + endpoint));
    }/*from  w w  w  . j a v  a 2s .c  o m*/

    final String queueName = getQueueName(endpoint.getAddress());

    if (StringUtils.isBlank(queueName)) {
        // no queue name -> create a private one on the server
        final DeclareOk queueDeclareResult = channel.queueDeclare();

        final String privateQueueName = queueDeclareResult.getQueue();
        LOG.info("Declared private queue: " + privateQueueName);

        bindQueue(channel, endpoint, exchangeName, routingKey, privateQueueName);
        return privateQueueName;
    }

    // queue name -> either create or ensure the queue exists
    if (endpoint.getProperties().containsKey(QUEUE_DURABLE)
            || endpoint.getProperties().containsKey(QUEUE_AUTO_DELETE)
            || endpoint.getProperties().containsKey(QUEUE_EXCLUSIVE)) {
        // any of the queue declaration parameter provided -> declare the queue
        final boolean queueDurable = BooleanUtils.toBoolean((String) endpoint.getProperty(QUEUE_DURABLE));
        final boolean queueExclusive = BooleanUtils.toBoolean((String) endpoint.getProperty(QUEUE_EXCLUSIVE));
        final boolean queueAutoDelete = BooleanUtils
                .toBoolean((String) endpoint.getProperty(QUEUE_AUTO_DELETE));

        channel.queueDeclare(queueName, queueDurable, queueExclusive, queueAutoDelete, NO_ARGS);
        LOG.info("Declared queue: " + queueName + ", durable: " + queueDurable + ", exclusive: "
                + queueExclusive + ", autoDelete: " + queueAutoDelete);

        bindQueue(channel, endpoint, exchangeName, routingKey, queueName);
    } else if (!activeDeclarationsOnly) {
        // no declaration parameter -> ensure the queue exists
        channel.queueDeclarePassive(queueName);

        if (LOG.isDebugEnabled()) {
            LOG.debug("Validated presence of queue: " + queueName);
        }
    }

    return queueName;
}

From source file:org.mule.transport.amqp.internal.client.AmqpDeclarer.java

License:Open Source License

public String declareTemporaryQueue(Channel channel) throws IOException {
    final AMQP.Queue.DeclareOk queueDeclareResult = channel.queueDeclare();

    final String privateQueueName = queueDeclareResult.getQueue();
    logger.debug("Declared private queue: " + privateQueueName);

    return privateQueueName;
}

From source file:org.objectweb.proactive.extensions.amqp.remoteobject.FindQueuesRPCClient.java

License:Open Source License

@Override
protected String createReplyQueue(Channel channel) throws IOException {
    return channel.queueDeclare().getQueue();
}