1 /*
2 * Copyright 2001-2004 The Apache Software Foundation.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package org.jdiagnose.library.web.spring;
17
18 import java.util.Collection;
19 import java.util.HashSet;
20 import java.util.Iterator;
21 import java.util.Set;
22
23 import javax.servlet.http.HttpSessionBindingEvent;
24 import javax.servlet.http.HttpSessionBindingListener;
25
26 import org.jdiagnose.remote.provider.MutableSystemProvider;
27
28 /***
29 * @author JMcCrindle
30 */
31 public class DefaultSessionSystems implements HttpSessionBindingListener, SessionSystems {
32
33 private transient MutableSystemProvider provider = null;
34 private Set ids = new HashSet();
35
36 public DefaultSessionSystems(MutableSystemProvider provider) {
37 this.provider = provider;
38 }
39
40 /* (non-Javadoc)
41 * @see javax.servlet.http.HttpSessionBindingListener#valueBound(javax.servlet.http.HttpSessionBindingEvent)
42 */
43 public void valueBound(HttpSessionBindingEvent event) {
44 }
45
46 /* (non-Javadoc)
47 * @see javax.servlet.http.HttpSessionBindingListener#valueUnbound(javax.servlet.http.HttpSessionBindingEvent)
48 */
49 public void valueUnbound(HttpSessionBindingEvent event) {
50 if(provider != null) {
51 for (Iterator iter = ids.iterator(); iter.hasNext();) {
52 String id = (String) iter.next();
53 provider.removeHolder(id);
54 }
55 }
56 }
57
58 /* (non-Javadoc)
59 * @see org.jdiagnose.library.web.spring.SessionSystems#getIds()
60 */
61 public Collection getIds() {
62 return ids;
63 }
64
65
66 }