Example usage for com.rabbitmq.client Connection createChannel

List of usage examples for com.rabbitmq.client Connection createChannel

  1. HOME
  2. Java
  3. com.rabbitmq
  4. com.rabbitmq.client.*
  5. Connection
  6. 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:com.es.dashboard.ConnectionBrokerJPA.java

public void requestData() throws IOException, TimeoutException, InterruptedException {
    System.out.println("ran");
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("systembus"); // RabbitMQ IP
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();
    channel.exchangeDeclare("sensors", "topic");

    JSONObject json = new JSONObject();
    json.put("name", "Temperatura dos Narcisos");
    json.put("room", "masterbath");
    json.put("start", System.currentTimeMillis() - 3600000);
    json.put("end", System.currentTimeMillis());
    channel.basicPublish("sensors", "dashboard.request", null, json.toString().getBytes());

    json = new JSONObject();
    json.put("name", "Humidade da Cave");
    json.put("room", "masterbath");
    json.put("start", System.currentTimeMillis() - 3600000);
    json.put("end", System.currentTimeMillis());
    channel.basicPublish("sensors", "dashboard.request", null, json.toString().getBytes());

    json = new JSONObject();
    json.put("name", "Luminosidade da Estufa");
    json.put("room", "masterbath");
    json.put("start", System.currentTimeMillis() - 3600000);
    json.put("end", System.currentTimeMillis());
    channel.basicPublish("sensors", "dashboard.request", null, json.toString().getBytes());

    json = new JSONObject();
    json.put("name", "Sensor de Fumo");
    json.put("room", "masterbath");
    json.put("start", System.currentTimeMillis() - 3600000);
    json.put("end", System.currentTimeMillis());

    channel.basicPublish("sensors", "dashboard.request", null, json.toString().getBytes());
    //System.err.println("booting");
}

From source file:com.es.sensorgateway.Publish.java

/**
 * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
 * methods./*from  ww w  . j a  v a  2 s  .  c o m*/
 *
 * @param request servlet request
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException if an I/O error occurs
 */
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException, UnknownHostException {

    response.setContentType("text/html;charset=UTF-8");

    try (PrintWriter out = response.getWriter()) {
        /* TODO output your page here. You may use following sample code. */

        logger.info("Connection with rabbit Mq stablish!");

        byte[] original;
        String message = null;
        try {
            message = request.getParameter("data");
            original = Base64.getUrlDecoder().decode(message);
        } catch (Exception ex) {
            response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
            response.getWriter().write(HttpServletResponse.SC_BAD_REQUEST);
            logger.debug("Ignoring message: " + message);
            return;
        }

        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("systembus"); // RabbitMQ IP
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();

        //POR aqui as cenas de autenticao
        response.setStatus(HttpServletResponse.SC_OK);
        response.getWriter().write(HttpServletResponse.SC_OK);
        logger.info("Received request from REST gateway!");

        channel.exchangeDeclare("sensors", "topic", false);
        channel.basicPublish("sensors", "realtime.sensordata", null, original);
        logger.info("Message sent to broker: " + message);

        channel.close();
        connection.close();
        logger.info("Connection with rabbit Mq closed!");

    } catch (TimeoutException ex) {
        logger.error(ex);
    }
}

From source file:com.espertech.esperio.amqp.AMQPSupportReceiveRunnable.java

License:Open Source License

public void run() {
    try {//from  ww  w  .  j  a va 2 s .  co m
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost(hostName);
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();

        // java.lang.String queue, boolean durable, boolean exclusive, boolean autoDelete, java.util.Map<java.lang.String,java.lang.Object> arguments
        channel.queueDeclare(queueName, false, false, true, null);

        log.info("Start receiving messages");

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

        int count = 0;
        while (true) {
            final QueueingConsumer.Delivery msg = consumer.nextDelivery(waitMSecNextMsg);
            if (msg == null) {
                continue;
            }
            final byte[] bytes = msg.getBody();
            callback.handleMessage(bytes);

            if (isShutdown()) {
                break;
            }
        }

        log.info("Completed publishing messages: " + count + " messages");
    } catch (Exception ex) {
        log.error("Error attaching to AMQP: " + ex.getMessage(), ex);
    }
}

From source file:com.espertech.esperio.amqp.AMQPSupportSendRunnable.java

License:Open Source License

public void run() {
    try {/*from  www  .  j  ava2  s  .c  o m*/
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost(hostName);
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();

        // java.lang.String queue, boolean durable, boolean exclusive, boolean autoDelete, java.util.Map<java.lang.String,java.lang.Object> arguments
        channel.queueDeclare(queueName, false, false, true, null);

        log.info("Start publishing messages: " + events.size() + " messages");

        int count = 0;
        while (true) {
            if (events.isEmpty()) {
                break;
            }

            Object next = events.remove(0);
            byte[] bytes = SerializerUtil.objectToByteArr(next);
            channel.basicPublish("", queueName, null, bytes);
            count++;

            log.info("Publishing message #" + count + ": " + next);
            Thread.sleep(msecSleepTime);

            if (isShutdown()) {
                break;
            }
        }

        log.info("Completed publishing messages: " + count + " messages");
    } catch (Exception ex) {
        log.error("Error attaching to AMQP: " + ex.getMessage(), ex);
    }
}

From source file:com.espertech.esperio.amqp.AMQPSupportUtil.java

License:Open Source License

public static int drainQueue(String hostName, String queueName) {
    Connection connection = null;
    Channel channel = null;/*ww w. j  a v  a2 s  .  c  om*/

    try {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost(hostName);
        connection = factory.newConnection();
        channel = connection.createChannel();

        // java.lang.String queue, boolean durable, boolean exclusive, boolean autoDelete, java.util.Map<java.lang.String,java.lang.Object> arguments
        channel.queueDeclare(queueName, false, false, true, null);

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

        int count = 0;
        while (true) {
            final QueueingConsumer.Delivery msg = consumer.nextDelivery(1);
            if (msg == null) {
                return count;
            }
        }
    } catch (Exception ex) {
        log.error("Error attaching to AMQP: " + ex.getMessage(), ex);
    } finally {
        if (channel != null) {
            try {
                channel.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        if (connection != null) {
            try {
                connection.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    return -1;
}

From source file:com.eventbook.controller.SpringbootPocController.java

@RequestMapping(value = "/rabbitMQSendTest", method = RequestMethod.GET)
public String rabbitMQSendTest(@RequestParam(value = "message", defaultValue = "Hello World!") String message) {
    try {//from  ww w  .  jav a 2 s . com
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("rabbitmq");
        factory.setPort(5672);
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();
        channel.queueDeclare(QUEUE_NAME, false, false, false, null);
        channel.basicPublish("", QUEUE_NAME, null, message.getBytes("UTF-8"));
        System.out.println(" [x] Sent '" + message + "'");

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

        return "rabbitMQSendTest Sent: " + message;
    } catch (IOException | TimeoutException ex) {
        Logger.getLogger(SpringbootPocController.class.getName()).log(Level.SEVERE, null, ex);
    }

    return "rabbitMQSendTest has been failed!!!";
}

From source file:com.eventbook.controller.SpringbootPocController.java

@RequestMapping(value = "/rabbitMQReceiveTest", method = RequestMethod.GET)
public String rabbitMQReceiveTest() {
    try {/* w w  w  .j a  v  a 2 s . co  m*/
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("rabbitmq");
        factory.setPort(5672);
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();
        channel.queueDeclare(QUEUE_NAME, false, false, false, null);
        System.out.println(" [*] Waiting for messages. To exit press CTRL+C");
        Consumer consumer = new DefaultConsumer(channel) {
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                    byte[] body) throws IOException {
                String message = new String(body, "UTF-8");
                System.out.println(" [x] Received '" + message + "'");
            }
        };
        channel.basicConsume(QUEUE_NAME, true, consumer);

    } catch (IOException | TimeoutException ex) {
        Logger.getLogger(SpringbootPocController.class.getName()).log(Level.SEVERE, null, ex);
    }

    return "Getting messages from RabbitMQ!!";
}

From source file:com.frannciscocabral.ufs.rabbitmq.Receiver.java

public static void main(String[] argv)
        throws java.io.IOException, java.lang.InterruptedException, TimeoutException {

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

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

    Consumer consumer = new DefaultConsumer(channel) {
        @Override//from  w  w  w  .j  av a 2s .  co  m
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) throws IOException {
            String message = new String(body, "UTF-8");
            System.out.println(" [x] Received '" + message + "'");
        }
    };
    channel.basicConsume(QUEUE_NAME, true, consumer);
}

From source file:com.frannciscocabral.ufs.rabbitmq.Send.java

public static void main(String[] argv) throws java.io.IOException, TimeoutException {
    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();/*from   w ww .  j a v a 2 s.c  om*/
    connection.close();
}

From source file:com.gdp.rabbitmq.task.consumer.ext.ManualAckConsumer.java

public ManualAckConsumer() throws IOException {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("127.0.0.1");
    Connection connection = factory.newConnection();
    channel = connection.createChannel();
}