org.pascani.dsl.lib.infrastructure.rabbitmq.EndPoint.java Source code

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Here is the source code for org.pascani.dsl.lib.infrastructure.rabbitmq.EndPoint.java

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/*
 * Copyright  2015 Universidad Icesi
 * 
 * This file is part of the Pascani project.
 * 
 * The Pascani project is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.
 * 
 * The Pascani project 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 Lesser General Public License
 * for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with The Pascani project. If not, see <http://www.gnu.org/licenses/>.
 */
package org.pascani.dsl.lib.infrastructure.rabbitmq;

import java.io.IOException;
import java.util.concurrent.TimeoutException;

import org.pascani.dsl.lib.PascaniRuntime;

import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;

/**
 * Basic end point representation containing common factors from Consumer and
 * Producer roles, i.e., required information in both cases.
 * 
 * @author Miguel Jimnez - Initial contribution and API
 */
public class EndPoint {

    private final Channel channel;
    private final Connection connection;

    /**
     * Creates a RabbitMQ end point; that is, a connection to the RabbitMQ
     * server. This is commonly used by all RabbitMQ consumers and producers.
     * 
     * @param uri
     *            The RabbitMQ connection URI
     * 
     * @throws Exception
     *             If something bat happens. Check exceptions in
     *             {@link ConnectionFactory#setUri(String)},
     *             {@link ConnectionFactory#newConnection()}, and
     *             {@link Connection#createChannel()}
     */
    public EndPoint(final String uri) throws Exception {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setAutomaticRecoveryEnabled(true);
        factory.setUri(uri);
        this.connection = factory.newConnection();
        this.channel = this.connection.createChannel();
    }

    /**
     * Creates a RabbitMQ end point; that is, a connection to the RabbitMQ
     * server. This is commonly used by all RabbitMQ consumers and producers.
     * 
     * @throws Exception
     *             If something bat happens. Check exceptions in
     *             {@link ConnectionFactory#setUri(String)},
     *             {@link ConnectionFactory#newConnection()}, and
     *             {@link Connection#createChannel()}
     */
    public EndPoint() throws Exception {
        this(PascaniRuntime.getEnvironment().get("uri"));
    }

    public void close() throws IOException, TimeoutException {
        this.channel.close();
        this.connection.close();
    }

    public Channel channel() {
        return this.channel;
    }
}