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.jgroups;
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.TransportChannel;
24 import org.codehaus.activemq.transport.TransportChannelFactorySupport;
25 import org.codehaus.activemq.util.JMSExceptionHelper;
26 import org.jgroups.Channel;
27 import org.jgroups.ChannelException;
28 import org.jgroups.ChannelFactory;
29 import org.jgroups.JChannelFactory;
30
31 import javax.jms.JMSException;
32 import java.net.URI;
33
34 /***
35 * A JGroups implementation of a TransportChannelFactory
36 *
37 * @version $Revision: 1.5 $
38 */
39 public class JGroupsTransportChannelFactory extends TransportChannelFactorySupport {
40 private static final Log log = LogFactory.getLog(JGroupsTransportChannelFactory.class);
41
42 private ChannelFactory channelFactory = new JChannelFactory();
43 private Object channelConfiguration;
44 private String channelName = "ActiveMQ";
45
46 public JGroupsTransportChannelFactory() {
47 }
48
49 public JGroupsTransportChannelFactory(ChannelFactory channelFactory, Object channelConfiguration, String channelName) {
50 this.channelFactory = channelFactory;
51 this.channelConfiguration = channelConfiguration;
52 this.channelName = channelName;
53 }
54
55 public TransportChannel create(WireFormat wireFormat, URI remoteLocation) throws JMSException {
56 try {
57 Channel channel = createChannel(remoteLocation);
58 channel.setOpt(Channel.AUTO_RECONNECT, Boolean.TRUE);
59 channel.connect(channelName);
60 return populateProperties(new JGroupsTransportChannel(wireFormat, channel, null), remoteLocation);
61 }
62 catch (ChannelException e) {
63 throw JMSExceptionHelper.newJMSException("Failed to construct JGroups Channel: " + e, e);
64 }
65 }
66
67 public TransportChannel create(WireFormat wireFormat, URI remoteLocation, URI localLocation) throws JMSException {
68 return create(wireFormat, remoteLocation);
69 }
70
71 public boolean requiresEmbeddedBroker() {
72 return true;
73 }
74
75
76
77
78
79 public ChannelFactory getChannelFactory() {
80 return channelFactory;
81 }
82
83 public void setChannelFactory(ChannelFactory channelFactory) {
84 this.channelFactory = channelFactory;
85 }
86
87 public Object getChannelConfiguration() {
88 return channelConfiguration;
89 }
90
91 public void setChannelConfiguration(Object channelConfiguration) {
92 this.channelConfiguration = channelConfiguration;
93 }
94
95 public String getChannelName() {
96 return channelName;
97 }
98
99 public void setChannelName(String channelName) {
100 this.channelName = channelName;
101 }
102
103 protected Channel createChannel(URI remoteLocation) throws ChannelException {
104 Object config = channelConfiguration;
105 if (config == null) {
106
107 String text = remoteLocation.getSchemeSpecificPart();
108 if (!text.equalsIgnoreCase("default")) {
109 config = text;
110 }
111 }
112 log.info("Configuring JGroups with: " + config);
113 return channelFactory.createChannel(config);
114 }
115 }