001    /**
002     * 
003     * Copyright 2004 Protique Ltd
004     * 
005     * Licensed under the Apache License, Version 2.0 (the "License"); 
006     * you may not use this file except in compliance with the License. 
007     * You may obtain a copy of the License at 
008     * 
009     * http://www.apache.org/licenses/LICENSE-2.0
010     * 
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS, 
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
014     * See the License for the specific language governing permissions and 
015     * limitations under the License. 
016     * 
017     **/
018    package org.activemq.transport.jrms;
019    
020    import EDU.oswego.cs.dl.util.concurrent.SynchronizedBoolean;
021    import org.apache.commons.logging.Log;
022    import org.apache.commons.logging.LogFactory;
023    import org.activemq.io.WireFormat;
024    import org.activemq.transport.TransportServerChannelSupport;
025    
026    import javax.jms.JMSException;
027    import java.net.URI;
028    
029    /**
030     * A JRMS implementation of TransportServerChannel
031     *
032     * @version $Revision$
033     */
034    public class JRMSTransportServerChannel extends TransportServerChannelSupport {
035    
036        private static final Log log = LogFactory.getLog(JRMSTransportServerChannel.class);
037    
038        private SynchronizedBoolean started;
039    
040    
041        public JRMSTransportServerChannel(WireFormat wireFormat, URI bindAddr) {
042            super(bindAddr);
043            started = new SynchronizedBoolean(false);
044        }
045    
046    
047        /**
048         * start listeneing for events
049         *
050         * @throws JMSException if an error occurs
051         */
052        public void start() throws JMSException {
053            if (started.commit(false, true)) {
054                log.info("JRMS ServerChannel at: " + getUrl());
055            }
056        }
057    
058    
059        /**
060         * @return pretty print of this
061         */
062        public String toString() {
063            return "JRMSTransportServerChannel@" + getUrl();
064        }
065    }