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.udp;
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.transport.TransportServerChannelSupport;
024
025 import javax.jms.JMSException;
026 import java.net.URI;
027
028 /**
029 * A UDP implementation of TransportServerChannel
030 *
031 * @version $Revision: 1.1.1.1 $
032 */
033 public class UdpTransportServerChannel extends TransportServerChannelSupport {
034
035 private static final Log log = LogFactory.getLog(UdpTransportServerChannel.class);
036
037 private SynchronizedBoolean started;
038
039 public UdpTransportServerChannel(URI bindAddr) {
040 super(bindAddr);
041 started = new SynchronizedBoolean(false);
042 }
043
044 /**
045 * start listeneing for events
046 *
047 * @throws JMSException if an error occurs
048 */
049 public void start() throws JMSException {
050 if (started.commit(false, true)) {
051 log.info("ServerChannel at: " + getUrl());
052 }
053 }
054
055 /**
056 * @return pretty print of this
057 */
058 public String toString() {
059 return "UdpTransportServerChannel@" + getUrl();
060 }
061
062 }