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;
19
20 import org.apache.commons.logging.Log;
21 import org.apache.commons.logging.LogFactory;
22
23 import javax.jms.JMSException;
24 import java.net.URI;
25 import java.util.ArrayList;
26 import java.util.Iterator;
27 import java.util.List;
28
29 /***
30 * An abstract base class useful for implementation inheritence
31 *
32 * @version $Revision: 1.7 $
33 */
34 public abstract class TransportServerChannelSupport implements TransportServerChannel {
35
36 private static final Log log = LogFactory.getLog(TransportServerChannelSupport.class);
37
38 private String url;
39 private TransportChannelListener transportChannelListener;
40 private List channels = new ArrayList();
41
42 public TransportServerChannelSupport(URI url) {
43 this(url.toString());
44 }
45
46 public TransportServerChannelSupport(String url) {
47 this.url = url;
48 }
49
50 public void start() throws JMSException {
51 if (transportChannelListener == null) {
52 throw new JMSException("Must have a TransportChannelListener attached!");
53 }
54 }
55
56 public synchronized void stop() throws JMSException {
57 for (Iterator iter = channels.iterator(); iter.hasNext();) {
58 TransportChannel channel = (TransportChannel) iter.next();
59 channel.stop();
60 }
61 }
62
63 public TransportChannelListener getTransportChannelListener() {
64 return transportChannelListener;
65 }
66
67 public void setTransportChannelListener(TransportChannelListener listener) {
68 this.transportChannelListener = listener;
69 }
70
71 public String getUrl() {
72 return url;
73 }
74
75 public void setUrl(String url) {
76 this.url = url;
77 }
78
79 protected synchronized void addClient(TransportChannel channel) {
80 if (transportChannelListener == null) {
81 log.warn("No listener attached, cannot add channel: " + channel);
82 }
83 else {
84 transportChannelListener.addClient(channel);
85 channel.setTransportChannelListener(transportChannelListener);
86 channels.add(channel);
87 }
88 }
89 }