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 org.apache.commons.logging.Log;
21 import org.apache.commons.logging.LogFactory;
22 import org.codehaus.activemq.message.WireFormat;
23 import org.codehaus.activemq.transport.udp.UdpTransportChannel;
24
25 import javax.jms.JMSException;
26 import java.io.IOException;
27 import java.net.DatagramSocket;
28 import java.net.MulticastSocket;
29 import java.net.URI;
30
31 /***
32 * A multicast implementation of a TransportChannel
33 *
34 * @version $Revision: 1.11 $
35 */
36 public class MulticastTransportChannel extends UdpTransportChannel {
37
38 private static final Log log = LogFactory.getLog(MulticastTransportChannel.class);
39
40 private boolean loopbackMode = false;
41
42
43
44 /***
45 * Connect to a remote Node - e.g. a Broker
46 *
47 * @param remoteLocation
48 * @throws JMSException
49 */
50 public MulticastTransportChannel(WireFormat wireFormat, URI remoteLocation) throws JMSException {
51 super(wireFormat, remoteLocation);
52 }
53
54 /***
55 * @param socket
56 * @throws JMSException
57 */
58 public MulticastTransportChannel(WireFormat wireFormat, MulticastSocket socket) throws JMSException {
59 super(wireFormat, socket);
60 }
61
62 public boolean isMulticast() {
63 return true;
64 }
65
66 /***
67 * pretty print for object
68 *
69 * @return String representation of this object
70 */
71 public String toString() {
72 return "MulticastTransportChannel: " + socket;
73 }
74
75 protected void connect() throws IOException {
76 MulticastSocket msocket = (MulticastSocket) socket;
77
78
79 msocket.setLoopbackMode(loopbackMode);
80
81 msocket.joinGroup(inetAddress);
82 }
83
84 protected DatagramSocket createSocket(int port) throws IOException {
85 return new MulticastSocket(port);
86 }
87
88 }