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1   /***
2    * 
3    * Copyright 2004 Protique Ltd
4    * 
5    * Licensed under the Apache License, Version 2.0 (the "License"); 
6    * you may not use this file except in compliance with the License. 
7    * You may obtain a copy of the License at 
8    * 
9    * http://www.apache.org/licenses/LICENSE-2.0
10   * 
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS, 
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
14   * See the License for the specific language governing permissions and 
15   * limitations under the License. 
16   * 
17   **/
18  package org.codehaus.activemq.transport.multicast;
19  
20  import EDU.oswego.cs.dl.util.concurrent.SynchronizedBoolean;
21  import org.apache.commons.logging.Log;
22  import org.apache.commons.logging.LogFactory;
23  import org.codehaus.activemq.message.WireFormat;
24  import org.codehaus.activemq.transport.TransportServerChannelSupport;
25  
26  import javax.jms.JMSException;
27  import java.net.URI;
28  
29  /***
30   * A Multicast implementation of TransportServerChannel
31   *
32   * @version $Revision: 1.13 $
33   */
34  public class MulticastTransportServerChannel extends TransportServerChannelSupport {
35  
36      private static final Log log = LogFactory.getLog(MulticastTransportServerChannel.class);
37  
38      protected URI bindAddress;
39      private SynchronizedBoolean started;
40  
41      public MulticastTransportServerChannel(WireFormat wireFormat, URI bindAddr) {
42          super(bindAddr);
43          this.bindAddress = bindAddr;
44          started = new SynchronizedBoolean(false);
45          log.info("ServerChannel at: " + bindAddress);
46      }
47  
48  
49      /***
50       * start listeneing for events
51       *
52       * @throws JMSException if an error occurs
53       */
54      public void start() throws JMSException {
55          if (started.commit(false, true)) {
56          }
57      }
58  
59      /***
60       * @return pretty print of this
61       */
62      public String toString() {
63          return "MulticastTransportServerChannel@" + bindAddress;
64      }
65  }