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.vm;
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.transport.TransportServerChannelSupport;
24
25 import javax.jms.JMSException;
26 import java.net.URI;
27
28 /***
29 * A VM implementation of TransportServerChannel
30 *
31 * @version $Revision: 1.8 $
32 */
33 public class VmTransportServerChannel extends TransportServerChannelSupport {
34
35 private static final Log log = LogFactory.getLog(VmTransportServerChannel.class);
36
37 private SynchronizedBoolean started;
38
39 public VmTransportServerChannel(URI bindAddr) {
40 super(bindAddr);
41 started = new SynchronizedBoolean(false);
42 }
43
44 /***
45 * start listeneing for events
46 *
47 * @throws JMSException if an error occurs
48 */
49 public void start() throws JMSException {
50 if (started.commit(false, true)) {
51 log.info("Listening for connections at: " + getUrl());
52 }
53 }
54
55 /***
56 * @return pretty print of this
57 */
58 public String toString() {
59 return "VmTransportServerChannel@" + getUrl();
60 }
61
62 }