Example usage for com.rabbitmq.client Channel basicConsume

Introduction

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

Prototype

String basicConsume(String queue, boolean autoAck, Consumer callback) throws IOException;

Source Link

Document

Start a non-nolocal, non-exclusive consumer, with a server-generated consumerTag.

Usage

From source file:translators.ToOurJsonBank.java

public static void main(String[] args) throws Exception {

    RabbitConnection rabbitConnection = new RabbitConnection();
    Channel channel = rabbitConnection.makeConnection();
    channel.exchangeDeclare(ExchangeName.GLOBAL, "direct");
    String queueName = channel.queueDeclare().getQueue();
    channel.queueBind(queueName, ExchangeName.GLOBAL, RoutingKeys.OUR_JSON_BANK);

    QueueingConsumer consumer = new QueueingConsumer(channel) {
        @Override// w  ww .  ja v  a  2s .c o  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("Received msg: " + message);
            Message messageFromJson = getFromJson(message);

            sendMsgToBank(messageFromJson, properties.getCorrelationId(),
                    ExchangeName.OUTPUT_TRANSLATOR_TO_OUR_JSON_BANK, REPLY_QUEUE_NAME);
        }
    };

    channel.basicConsume(queueName, true, consumer);
}

---

From source file:translators.ToOurXmlBank.java

public static void main(String[] args) throws IOException, TimeoutException {

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

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

    channel.queueBind(queueName, exchangeName, "ourBankSoapXML");

    //get banks from queue. "Get banks" component
    QueueingConsumer consumer = new QueueingConsumer(channel) {
        @Override/*  w ww  .j a  va  2  s .co  m*/
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) throws IOException {
            String message = new String(body, "UTF-8");
            Message messageFromJson = getFromJson(message);
            connectToWebService(messageFromJson, properties.getCorrelationId(), EXCHANGE_NAME_SCHOOL,
                    replyQueueName);

        }
    };
    channel.basicConsume(queueName, true, consumer);

}

---

From source file:translators.ToXmlSchool.java

public static void main(String[] args) throws IOException {
    //final String replyQueueName = "replyFromBanks";
    final String replyQueueName = "teachersXmlReply";
    final String EXCHANGE_NAME_SCHOOL = "cphbusiness.bankXML";
    final String exchangeName = ExchangeName.GLOBAL;

    RabbitConnection rabbitConnection = new RabbitConnection();

    Channel channel = rabbitConnection.makeConnection();
    channel.exchangeDeclare(exchangeName, "direct");
    String queueName = channel.queueDeclare().getQueue();

    channel.queueBind(queueName, exchangeName, "keyBankXML");

    //get banks from queue. "Get banks" component
    QueueingConsumer consumer = new QueueingConsumer(channel) {
        @Override/*  ww  w .  ja  v a 2s  .c  om*/
        public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties,
                byte[] body) throws IOException {
            String message = new String(body, "UTF-8");
            Message messageFromJson = getFromJson(message);
            sendMsgToBank(messageFromJson, properties.getCorrelationId(), EXCHANGE_NAME_SCHOOL, replyQueueName);
        }
    };
    channel.basicConsume(queueName, true, consumer);
}

---

From source file:uk.ac.sanger.cgp.wwdocker.messages.Messaging.java

License:Open Source License

public void cleanQueue(String queue, String match) throws IOException, InterruptedException {
    logger.trace(queue.concat(": ").concat(match));
    Connection connectionRcv = getRmqConn();
    Channel channel = connectionRcv.createChannel();
    channel.queueDeclare(queue, true, false, false, null);

    QueueingConsumer consumer = new QueueingConsumer(channel);
    channel.basicConsume(queue, false, consumer);
    QueueingConsumer.Delivery delivery = consumer.nextDelivery(1000);
    Set seen = new HashSet();
    while (delivery != null) {
        String body = new String(delivery.getBody());
        if (seen.contains(body)) {
            break;
        }//from w  ww.ja v  a2 s .co  m
        if (body.contains(match)) {
            channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
        } else {
            channel.basicNack(delivery.getEnvelope().getDeliveryTag(), false, true);
            seen.add(body);
        }
        delivery = consumer.nextDelivery(1000);
    }
    channel.close();
    closeRmqConn(connectionRcv);
}

---

From source file:uk.ac.sanger.cgp.wwdocker.messages.Messaging.java

License:Open Source License

public List<File> getFiles(String queue, Path outFolder, boolean ack) throws IOException, InterruptedException {
    List files = new ArrayList();
    Connection connectionRcv = getRmqConn();
    Channel channel = connectionRcv.createChannel();
    channel.queueDeclare(queue, true, false, false, null);

    QueueingConsumer consumer = new QueueingConsumer(channel);
    channel.basicConsume(queue, false, consumer);
    QueueingConsumer.Delivery delivery = consumer.nextDelivery(1000);

    Set seen = new HashSet();

    while (delivery != null) {
        String host = delivery.getProperties().getHeaders().get("host").toString();
        File outTo = Paths.get(outFolder.toString(), host + ".tar.gz").toFile();
        FileUtils.writeByteArrayToFile(outTo, delivery.getBody());
        if (ack) {
            channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
        } else {/*w  ww.j a v a2 s.  c o  m*/
            channel.basicNack(delivery.getEnvelope().getDeliveryTag(), false, true);
        }
        if (seen.contains(delivery.getProperties().getHeaders().get("host"))) {
            break;
        }
        seen.add(delivery.getProperties().getHeaders().get("host"));
        files.add(outTo);
        logger.info(queue + " retrieved: " + outTo.getAbsolutePath());
        delivery = consumer.nextDelivery(1000);
    }
    logger.warn("getFiles done");
    channel.close();
    closeRmqConn(connectionRcv);
    return files;
}

---

From source file:uk.ac.sanger.cgp.wwdocker.messages.Messaging.java

License:Open Source License

public WorkerState getWorkerState(String queue, long wait) throws IOException, InterruptedException {
    WorkerState ws = null;/*from  w  w w . j  a va  2s  .  c  o  m*/
    Connection connectionRcv = getRmqConn();
    Channel channel = connectionRcv.createChannel();
    channel.queueDeclare(queue, true, false, false, null);

    QueueingConsumer consumer = new QueueingConsumer(channel);
    channel.basicConsume(queue, false, consumer);
    QueueingConsumer.Delivery delivery;
    if (wait == -1) {
        delivery = consumer.nextDelivery(); // will block until response
    } else {
        delivery = consumer.nextDelivery(wait);
    }
    if (delivery != null) {
        String message = new String(delivery.getBody());
        ws = (WorkerState) Utils.jsonToObject(message, WorkerState.class);
        channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
    }
    channel.close();
    closeRmqConn(connectionRcv);
    return ws;
}

---

From source file:uk.ac.sanger.cgp.wwdocker.messages.Messaging.java

License:Open Source License

/**
 * Gets a single message from a queue, ideal for getting an item of work.
 * @param queue/*from   www  .  j av  a  2s .c o  m*/
 * @param wait
 * @return A JSON string representing an object, you need to know what type of object the queue will return and handle this outside of here
 * @throws IOException
 * @throws InterruptedException 
 */
public String getMessageString(String queue, long wait) throws IOException, InterruptedException {
    String message = null;
    Connection connectionRcv = getRmqConn();
    Channel channel = connectionRcv.createChannel();
    channel.queueDeclare(queue, true, false, false, null);

    QueueingConsumer consumer = new QueueingConsumer(channel);
    channel.basicConsume(queue, false, consumer);
    QueueingConsumer.Delivery delivery;
    if (wait == -1) {
        delivery = consumer.nextDelivery(); // will block until response
    } else {
        delivery = consumer.nextDelivery(wait);
    }
    if (delivery != null) {
        message = new String(delivery.getBody());
        channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
        logger.info(queue + " recieved: " + message);
    }
    channel.close();
    closeRmqConn(connectionRcv);
    return message;
}

---

From source file:uk.ac.sanger.cgp.wwdocker.messages.Messaging.java

License:Open Source License

public void removeFromStateQueue(String queue, String hostToRemove) throws IOException, InterruptedException {
    logger.trace(queue.concat(": ").concat(hostToRemove));
    Connection connectionRcv = getRmqConn();
    Channel channel = connectionRcv.createChannel();
    int maxTries = channel.queueDeclare(queue, true, false, false, null).getMessageCount();
    logger.trace("Queue : messages\t" + queue + " : " + maxTries);

    QueueingConsumer consumer = new QueueingConsumer(channel);
    channel.basicConsume(queue, false, consumer);
    QueueingConsumer.Delivery delivery = consumer.nextDelivery(200);
    logger.trace(maxTries);/*from w ww. j  ava 2 s  .c om*/
    while (delivery != null && maxTries > 0) {
        // the toString in the middle of this is needed as it is wrapped with another type that can hold 4GB
        Map<String, Object> headers = delivery.getProperties().getHeaders();
        if (headers != null && headers.get("host").toString().equals(hostToRemove)) {
            logger.trace(headers.get("host").toString().concat(" remove"));
            channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
        } else {
            channel.basicNack(delivery.getEnvelope().getDeliveryTag(), false, true);
        }
        delivery = consumer.nextDelivery(200);
        maxTries--;
    }
    channel.close();
    closeRmqConn(connectionRcv);
}

---

From source file:uk.ac.sanger.cgp.wwdocker.messages.Messaging.java

License:Open Source License

/**
 * Gets all the messages in a queue, best for queues which receive status updates.
 * @param queue//from   www. j  a  v a2  s .c  o m
 * @param wait
 * @return List of JSON strings representing objects, you need to know what type of object the queue will return and handle this outside of here
 * @throws IOException
 * @throws InterruptedException 
 */
public List<String> getMessageStrings(String queue, long wait) throws IOException, InterruptedException {
    List<String> responses = new ArrayList();
    Connection connectionRcv = getRmqConn();
    Channel channel = connectionRcv.createChannel();
    channel.queueDeclare(queue, true, false, false, null);
    QueueingConsumer consumer = new QueueingConsumer(channel);
    channel.basicConsume(queue, true, consumer);
    while (true) {
        QueueingConsumer.Delivery delivery = consumer.nextDelivery(wait);
        if (delivery == null) {
            break;
        }
        String message = new String(delivery.getBody());
        logger.info(queue + " recieved: " + message);
        responses.add(message);
    }
    channel.close();
    closeRmqConn(connectionRcv);
    return responses;
}

---

From source file:uk.ac.soton.itinnovation.experimedia.arch.ecc.amqpAPI.impl.faces.AbstractAMQPInterface.java

protected void createSubscriptionComponent() {
    Channel channel = (Channel) amqpChannel.getChannelImpl();

    subProcessor = new AMQPBasicSubscriptionProcessor(channel, subListenQueue, msgDispatch);

    try {/*from  w w  w  .  j  a  v  a  2  s  .  co m*/
        channel.basicConsume(subListenQueue, false, subProcessor);
    } catch (IOException ioe) {
        String err = "AMQP Interface could not create subscription component: " + ioe.getMessage();
        amqpIntLogger.error(err, ioe);
    }
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• »