Example usage for com.rabbitmq.client Connection createChannel

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

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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:vn.com.uet.performance.rabbitmq.MulticastParams.java

License:Open Source License

public Consumer createConsumer(Connection connection, Stats stats, String id) throws IOException {
    Channel channel = connection.createChannel();
    if (consumerTxSize > 0)
        channel.txSelect();//from  w  ww .  j  a  va  2 s .co m
    String qName = configureQueue(connection, id);
    if (consumerPrefetch > 0)
        channel.basicQos(consumerPrefetch);
    if (channelPrefetch > 0)
        channel.basicQos(channelPrefetch, true);
    return new Consumer(channel, id, qName, consumerTxSize, autoAck, multiAckEvery, stats, consumerRateLimit,
            consumerMsgCount, timeLimit);
}

From source file:vn.com.uet.performance.rabbitmq.MulticastParams.java

License:Open Source License

public String configureQueue(Connection connection, String id) throws IOException {
    Channel channel = connection.createChannel();
    if (!predeclared || !exchangeExists(connection, exchangeName)) {
        channel.exchangeDeclare(exchangeName, exchangeType);
    }/* ww w .  j a va2  s .  co m*/
    String qName = queueName;
    if (!predeclared || !queueExists(connection, queueName)) {
        qName = channel.queueDeclare(queueName, flags.contains("persistent"), false, autoDelete, null)
                .getQueue();
    }
    channel.queueBind(qName, exchangeName, id);
    channel.abort();
    return qName;
}

From source file:vn.com.uet.performance.rabbitmq.MulticastParams.java

License:Open Source License

private static boolean exists(Connection connection, Checker checker) throws IOException {
    try {//from w  w w  . java  2  s  . co  m
        Channel ch = connection.createChannel();
        checker.check(ch);
        ch.abort();
        return true;
    } catch (IOException e) {
        ShutdownSignalException sse = (ShutdownSignalException) e.getCause();
        if (!sse.isHardError()) {
            AMQP.Channel.Close closeMethod = (AMQP.Channel.Close) sse.getReason();
            if (closeMethod.getReplyCode() == AMQP.NOT_FOUND) {
                return false;
            }
        }
        throw e;
    }
}

From source file:wiki.messaging.NewTask.java

License:Open Source License

public static void main(String[] args) throws IOException {
    int n = 500;/*from   w ww  .j  av  a2 s. c o  m*/
    String url = null;
    String rabbitMqUrl = null;
    for (int i = 0; i < args.length; i++) {
        if (args[i].equals("ds")) {
            url = args[i + 1];
        } else if (args[i].equals("rq")) {
            rabbitMqUrl = args[i + 1];
        } else if (args[i].equals("n")) {
            n = Integer.valueOf(args[i + 1]);
        }
    }
    DbConnector ds = new DbConnector(url);

    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost(rabbitMqUrl);
    factory.setUsername("wiki");
    factory.setPassword("wiki");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();
    channel.queueDeclare(QUEUE_NAME, false, false, false, null);

    RandomDocGetter rdg = new RandomDocGetter(ds);
    for (int i = 0; i < n; i++) {
        String message = getMessage(rdg);
        channel.basicPublish("", QUEUE_NAME, null, message.getBytes());
        System.out.println(" [x] Sent '" + message + "'");
    }

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

From source file:wiki.messaging.Receive.java

License:Open Source License

public static void main(String[] args) throws IOException, InterruptedException {
    String url = null;//from w  w w .j  a  va  2s.  com
    String rabbitMqUrl = null;
    for (int i = 0; i < args.length; i++) {
        if (args[i].equals("ds")) {
            url = args[i + 1];
        } else if (args[i].equals("rq")) {
            rabbitMqUrl = args[i + 1];
        } else if (args[i].equals("mj")) {
            maxJobs = Integer.valueOf(args[i + 1]);
        }
    }
    if (rabbitMqUrl == null) {
        rabbitMqUrl = "192.168.1.108";
    }
    if (url == null) {
        url = "localhost";
    }
    //        if (resultUrl == null) {
    //            resultUrl = url;
    //        }
    threadPool = new ExecutorCompletionService<>(Executors.newFixedThreadPool(maxJobs));
    System.out.println("DataSource: " + url);
    //        System.out.println("ResultWrite: " + resultUrl);
    DbConnector ds = new DbConnector(url);
    //        DbConnector rs = new DbConnector(resultUrl);

    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost(rabbitMqUrl);
    factory.setUsername("wiki");
    factory.setPassword("wiki");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();

    channel.queueDeclare(QUEUE_NAME, false, false, false, null);
    channel.queueDeclare(RESULT_QUEUE_NAME, true, false, false, null);
    System.out.println(" [*] Waiting for messages.");

    channel.basicQos(maxJobs);

    QueueingConsumer consumer = new QueueingConsumer(channel);
    boolean autoAck = false;
    channel.basicConsume(QUEUE_NAME, autoAck, consumer);

    while (true) {
        QueueingConsumer.Delivery delivery = consumer.nextDelivery();
        String message = new String(delivery.getBody());
        System.out.println(" [x] Received '" + message + "'");
        doWork(message, ds);
        saveResult(channel);
        System.out.println(" [x] Done");
        channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
    }
}

From source file:wiki.messaging.ResultConsumer.java

License:Open Source License

public static void main(String[] args) throws IOException, InterruptedException {
    String rabbitMqUrl = null;//from   w ww . j  a  v a2  s  .co  m
    String resultUrl = null;
    for (int i = 0; i < args.length; i++) {
        if (args[i].equals("rs")) {
            resultUrl = args[i + 1];
        } else if (args[i].equals("rq")) {
            rabbitMqUrl = args[i + 1];
        }
    }

    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost(rabbitMqUrl);
    factory.setUsername("wiki");
    factory.setPassword("wiki");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();

    channel.queueDeclare(RESULT_QUEUE_NAME, true, false, false, null);
    System.out.println(" [*] Waiting for messages.");

    QueueingConsumer consumer = new QueueingConsumer(channel);
    boolean autoAck = false;
    channel.basicConsume(RESULT_QUEUE_NAME, autoAck, consumer);

    DbConnector dbc = new DbConnector(resultUrl);

    while (true) {
        QueueingConsumer.Delivery delivery = consumer.nextDelivery(1000);
        if (delivery == null)
            break;
        String message = new String(delivery.getBody());
        System.out.println(" [x] Received '" + message + "'");
        saveResult(message, dbc);
        System.out.println(" [x] Done");
        channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
    }
    channel.close();
    connection.close();
}

From source file:wiki.messaging.Treeceive.java

License:Open Source License

public static void main(String[] args) throws IOException, InterruptedException {
    String url = null;//from w ww.j av  a 2s. c  om
    String rabbitMqUrl = null;
    for (int i = 0; i < args.length; i++) {
        if (args[i].equals("ds")) {
            url = args[i + 1];
        } else if (args[i].equals("rq")) {
            rabbitMqUrl = args[i + 1];
        } else if (args[i].equals("mj")) {
            maxJobs = Integer.valueOf(args[i + 1]);
        }
    }
    if (rabbitMqUrl == null) {
        rabbitMqUrl = "192.168.1.108";
    }
    if (url == null) {
        url = "localhost";
    }
    //        if (resultUrl == null) {
    //            resultUrl = url;
    //        }
    threadPool = new ExecutorCompletionService<>(Executors.newFixedThreadPool(maxJobs));
    System.out.println("DataSource: " + url);
    //        System.out.println("ResultWrite: " + resultUrl);
    DbConnector ds = new DbConnector(url);
    //        DbConnector rs = new DbConnector(resultUrl);

    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost(rabbitMqUrl);
    factory.setUsername("wiki");
    factory.setPassword("wiki");
    Connection connection = factory.newConnection();
    Channel channel = connection.createChannel();

    channel.queueDeclare(QUEUE_NAME, false, false, false, null);
    channel.queueDeclare(RESULT_QUEUE_NAME, true, false, false, null);
    System.out.println(" [*] Waiting for messages.");

    channel.basicQos(maxJobs);

    QueueingConsumer consumer = new QueueingConsumer(channel);
    boolean autoAck = false;
    channel.basicConsume(QUEUE_NAME, autoAck, consumer);

    while (true) {
        QueueingConsumer.Delivery delivery = consumer.nextDelivery();
        String message = new String(delivery.getBody());
        System.out.println(" [x] Received '" + message + "'");
        doWork(message, ds);
        saveResults(channel);
        System.out.println(" [x] Done");
        channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
    }
}

From source file:workqueue.NewTask.java

public static void main(String[] argv) throws Exception {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("datdb.cphbusiness.dk");
    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("UTF-8"));
    System.out.println(" [x] Sent '" + message + "'");

    channel.close();/*from w  w  w. j  av  a  2  s  . c o m*/
    connection.close();
}

From source file:workqueue.Worker.java

public static void main(String[] argv) throws Exception {
    ConnectionFactory factory = new ConnectionFactory();
    factory.setHost("datdb.cphbusiness.dk");
    final Connection connection = factory.newConnection();
    final 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);//from ww w  . java  2 s .c o  m

    final 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 + "'");
            try {
                doWork(message);
            } finally {
                System.out.println(" [x] Done");
                channel.basicAck(envelope.getDeliveryTag(), false);
            }
        }
    };
    channel.basicConsume(TASK_QUEUE_NAME, false, consumer);
}