it.txt.ens.authorisationService.amqp.AMQPQueueHelper.java Source code

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Here is the source code for it.txt.ens.authorisationService.amqp.AMQPQueueHelper.java

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/***************************************************************************
 * Copyright 2012 TXT e-solutions SpA
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 * This work was performed within the IoT_at_Work Project
 * and partially funded by the European Commission's
 * 7th Framework Programme under the research area ICT-2009.1.3
 * Internet of Things and enterprise environments.
 *
 * Authors:
 *      Salvatore Piccione (TXT e-solutions SpA)
 *      Carbone Matteo
 *
 * Contributors:
 *        Domenico Rotondi (TXT e-solutions SpA)
 **************************************************************************/
package it.txt.ens.authorisationService.amqp;

import java.io.IOException;

import com.rabbitmq.client.Channel;

/**
* This class encapsulates the management of an AMQP queue.
* 
* @author Carbone Matteo
* @author Salvatore Piccione (TXT e-solutions SpA - salvatore.piccione AT network.txtgroup.com)
*/
public class AMQPQueueHelper {

    public static void creates(Channel channel, String queue, boolean durable, boolean exclusive,
            boolean autoDelete) throws IOException {
        channel.queueDeclare(queue, durable, exclusive, autoDelete, null);
    }

    public static void delete(Channel channel, String queue) throws IOException {
        channel.queueDelete(queue);
    }

    public static boolean exists(Channel channel, String queue) {
        try {
            channel.queueDeclarePassive(queue);
            return true;
        } catch (IOException e) {
            return false;
        }
    }
}