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Java > Open Source Codes > org > riotfamily > components > context > ContextMap


1 /* ***** BEGIN LICENSE BLOCK *****
2  * Version: MPL 1.1
3  * The contents of this file are subject to the Mozilla Public License Version
4  * 1.1 (the "License"); you may not use this file except in compliance with
5  * the License. You may obtain a copy of the License at
6  * http://www.mozilla.org/MPL/
7  *
8  * Software distributed under the License is distributed on an "AS IS" basis,
9  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
10  * for the specific language governing rights and limitations under the
11  * License.
12  *
13  * The Original Code is Riot.
14  *
15  * The Initial Developer of the Original Code is
16  * Neteye GmbH.
17  * Portions created by the Initial Developer are Copyright (C) 2006
18  * the Initial Developer. All Rights Reserved.
19  *
20  * Contributor(s):
21  * Felix Gnass [fgnass at neteye dot de]
22  *
23  * ***** END LICENSE BLOCK ***** */
24 package org.riotfamily.components.context;
25
26 import java.io.Serializable JavaDoc;
27 import java.util.HashMap JavaDoc;
28 import java.util.Iterator JavaDoc;
29 import java.util.Map JavaDoc;
30
31 public class ContextMap implements Serializable JavaDoc {
32
33     private transient Map JavaDoc map;
34     
35     public void removeExpiredContexts() {
36         if (map != null) {
37             Iterator JavaDoc it = map.values().iterator();
38             while (it.hasNext()) {
39                 PageRequestContexts contexts = (PageRequestContexts) it.next();
40                 if (contexts.isExpired()) {
41                     it.remove();
42                 }
43             }
44         }
45     }
46     
47     public void touch(String JavaDoc pageUri) {
48         if (map != null) {
49             PageRequestContexts contexts = (PageRequestContexts) map.get(pageUri);
50             if (contexts != null) {
51                 contexts.touch();
52             }
53         }
54     }
55     
56     public void put(String JavaDoc pageUri, Object JavaDoc contextKey,
57             PageRequestContext context, long timeToLive) {
58         
59         if (map == null) {
60              map = new HashMap JavaDoc();
61         }
62         PageRequestContexts contexts = (PageRequestContexts) map.get(pageUri);
63         if (contexts == null) {
64             contexts = new PageRequestContexts(timeToLive);
65             map.put(pageUri, contexts);
66         }
67         contexts.put(contextKey, context);
68     }
69     
70     public PageRequestContext get(String JavaDoc pageUri, Object JavaDoc contextKey) {
71         if (map == null) {
72             return null;
73         }
74         PageRequestContexts contexts = (PageRequestContexts) map.get(pageUri);
75         if (contexts == null) {
76             return null;
77         }
78         return contexts.get(contextKey);
79     }
80
81 }
82
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