Example usage for com.rabbitmq.client Connection createChannel

Introduction

In this page you can find the example usage for com.rabbitmq.client Connection createChannel.

Prototype

Channel createChannel() throws IOException;

Source Link

Document

Create a new channel, using an internally allocated channel number.

Usage

From source file:es.devcircus.rabbitmq_examples.rabbitmq_hello_world.Send.java

License:Open Source License

/**
 * //from w  w w  .j a  v a2 s  .  c o m
 * @param argv
 * @throws Exception 
 */
public static void main(String[] argv) throws Exception {

    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();

    channel.queueDeclare(QUEUE_NAME, false, false, false, null);
    String message = "Hello World!";
    channel.basicPublish("", QUEUE_NAME, null, message.getBytes());
    System.out.println(" [x] Sent '" + message + "'");

    channel.close();
    connection.close();
}

---

From source file:es.devcircus.rabbitmq_examples.rabbitmq_publish_subscribe.EmitLog.java

License:Open Source License

/**
 *
 * @param argv/*  www . j av  a2s . c om*/
 * @throws Exception
 */
public static void main(String[] argv) throws Exception {

    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();

    channel.exchangeDeclare(EXCHANGE_NAME, "fanout");

    String message = getMessage(argv);

    channel.basicPublish(EXCHANGE_NAME, "", null, message.getBytes());
    System.out.println(" [x] Sent '" + message + "'");

    channel.close();
    connection.close();
}

---

From source file:es.devcircus.rabbitmq_examples.rabbitmq_publish_subscribe.ReceiveLog.java

License:Open Source License

/**
 *
 * @param argv//www . java 2s  . c o m
 * @throws Exception
 */
public static void main(String[] argv) throws Exception {

    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();

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

    System.out.println(" [*] Waiting for messages. 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());

        System.out.println(" [x] Received '" + message + "'");
    }
}

---

From source file:es.devcircus.rabbitmq_examples.rabbitmq_routing.EmitLogDirect.java

License:Open Source License

/**
 *
 * @param argv/*from   w  w  w .j  a  v  a 2 s  . co  m*/
 * @throws Exception
 */
public static void main(String[] argv) throws Exception {

    ConnectionFactory factory = new ConnectionFactory();
    //        factory.setHost("localhost");
    factory.setHost("192.168.0.202");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();

    channel.exchangeDeclare(EXCHANGE_NAME, "direct");

    String severity = getSeverity(argv);
    String message = getMessage(argv);

    channel.basicPublish(EXCHANGE_NAME, severity, null, message.getBytes());
    System.out.println(" [x] Sent '" + severity + "':'" + message + "'");

    channel.close();
    connection.close();
}

---

From source file:es.devcircus.rabbitmq_examples.rabbitmq_routing.ReceiveLogsDirect.java

License:Open Source License

/**
 *
 * @param argv/*from w  ww .  jav  a 2s  .  com*/
 * @throws Exception
 */
public static void main(String[] argv) throws Exception {

    ConnectionFactory factory = new ConnectionFactory();
    //        factory.setHost("localhost");
    factory.setHost("192.168.0.202");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();

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

    if (argv.length < 1) {
        System.err.println("Usage: ReceiveLogsDirect [info] [warning] [error]");
        System.exit(1);
    }

    for (String severity : argv) {
        channel.queueBind(queueName, EXCHANGE_NAME, severity);
    }

    System.out.println(" [*] Waiting for messages. 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] Received '" + routingKey + "':'" + message + "'");
    }
}

---

From source file:es.devcircus.rabbitmq_examples.rabbitmq_rpc.RPCServer.java

License:Open Source License

/**
 *
 * @param argv//from   w ww .  j a v a  2  s  . co m
 */
public static void main(String[] argv) {
    Connection connection = null;
    Channel channel = null;
    try {
        ConnectionFactory factory = new ConnectionFactory();
        //            factory.setHost("localhost");
        factory.setHost("192.168.0.202");
        //            factory.setPort(5671);

        //            factory.useSslProtocol();

        connection = factory.newConnection();
        channel = connection.createChannel();

        channel.queueDeclare(RPC_QUEUE_NAME, false, false, false, null);

        channel.basicQos(1);

        QueueingConsumer consumer = new QueueingConsumer(channel);
        channel.basicConsume(RPC_QUEUE_NAME, false, consumer);

        System.out.println(" [x] Awaiting RPC requests");

        while (true) {
            String response = null;

            QueueingConsumer.Delivery delivery = consumer.nextDelivery();

            BasicProperties props = delivery.getProperties();
            BasicProperties replyProps = new BasicProperties.Builder().correlationId(props.getCorrelationId())
                    .build();

            try {
                String message = new String(delivery.getBody(), "UTF-8");
                int n = Integer.parseInt(message);

                System.out.println(" [.] fib(" + message + ")");
                response = "" + fib(n);
            } catch (Exception e) {
                System.out.println(" [.] " + e.toString());
                response = "";
            } finally {
                channel.basicPublish("", props.getReplyTo(), replyProps, response.getBytes("UTF-8"));

                channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
            }
        }
    } catch (IOException | InterruptedException | ShutdownSignalException | ConsumerCancelledException e) {
        System.out.println(e.toString());
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (Exception ignore) {
            }
        }
    }
}

---

From source file:es.devcircus.rabbitmq_examples.rabbitmq_topics.EmitLogTopic.java

License:Open Source License

/**
 * /*w w w.j a v  a 2 s . c  o m*/
 * @param argv 
 */
public static void main(String[] argv) {
    Connection connection = null;
    Channel channel = null;
    try {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");

        connection = factory.newConnection();
        channel = connection.createChannel();

        channel.exchangeDeclare(EXCHANGE_NAME, "topic");

        String routingKey = getRouting(argv);
        String message = getMessage(argv);

        channel.basicPublish(EXCHANGE_NAME, routingKey, null, message.getBytes());
        System.out.println(" [x] Sent '" + routingKey + "':'" + message + "'");

    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (Exception ignore) {
            }
        }
    }
}

---

From source file:es.devcircus.rabbitmq_examples.rabbitmq_topics.ReceiveLogsTopic.java

License:Open Source License

/**
 * /*from w  w w .  j  ava2  s.c  o m*/
 * @param argv 
 */
public static void main(String[] argv) {
    Connection connection = null;
    Channel channel = null;
    try {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");

        connection = factory.newConnection();
        channel = connection.createChannel();

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

        if (argv.length < 1) {
            System.err.println("Usage: ReceiveLogsTopic [binding_key]...");
            System.exit(1);
        }

        for (String bindingKey : argv) {
            channel.queueBind(queueName, EXCHANGE_NAME, bindingKey);
        }

        System.out.println(" [*] Waiting for messages. 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] Received '" + routingKey + "':'" + message + "'");
        }
    } catch (IOException | InterruptedException | ShutdownSignalException | ConsumerCancelledException e) {
    } finally {
        if (connection != null) {
            try {
                connection.close();
            } catch (Exception ignore) {
            }
        }
    }
}

---

From source file:es.devcircus.rabbitmq_examples.rabbitmq_work_queues.NewTask.java

License:Open Source License

/**
 * /*from  ww w . ja  v a 2s.co  m*/
 * @param argv
 * @throws Exception 
 */
public static void main(String[] argv) throws Exception {

    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();

    channel.queueDeclare(TASK_QUEUE_NAME, true, false, false, null);

    String message = getMessage(argv);

    channel.basicPublish("", TASK_QUEUE_NAME, MessageProperties.PERSISTENT_TEXT_PLAIN, message.getBytes());
    System.out.println(" [x] Sent '" + message + "'");

    channel.close();
    connection.close();
}

---

From source file:es.devcircus.rabbitmq_examples.rabbitmq_work_queues.Worker.java

License:Open Source License

/**
 * /*from   w ww .  j a v a  2  s  .co  m*/
 * @param argv
 * @throws Exception 
 */
public static void main(String[] argv) throws Exception {

    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("localhost");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();

    channel.queueDeclare(TASK_QUEUE_NAME, true, false, false, null);
    System.out.println(" [*] Waiting for messages. To exit press CTRL+C");

    channel.basicQos(1);

    QueueingConsumer consumer = new QueueingConsumer(channel);
    channel.basicConsume(TASK_QUEUE_NAME, false, consumer);

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

        System.out.println(" [x] Received '" + message + "'");
        doWork(message);
        System.out.println(" [x] Done");

        channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
    }
}

---

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