es.devcircus.rabbitmq_examples.rabbitmq_topics.ReceiveLogsTopic.java Source code

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Here is the source code for es.devcircus.rabbitmq_examples.rabbitmq_topics.ReceiveLogsTopic.java

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/**
 * This file is part of rabbitmq-examples.
 *
 * rabbitmq-examples is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2, or (at your option) any later version.
 *
 * rabbitmq-examples is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; see the file COPYING. If not, see
 * <http://www.gnu.org/licenses/>.
 */
package es.devcircus.rabbitmq_examples.rabbitmq_topics;

import com.rabbitmq.client.ConnectionFactory;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.ConsumerCancelledException;
import com.rabbitmq.client.QueueingConsumer;
import com.rabbitmq.client.ShutdownSignalException;
import java.io.IOException;

/**
 * @author Adrian Novegil Toledo
 * @mail adrian.novegil@gmail.com
 * @description
 */
public class ReceiveLogsTopic {

    private static final String EXCHANGE_NAME = "topic_logs";

    /**
     * 
     * @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) {
                }
            }
        }
    }
}