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Java > Open Source Codes > org > infoglue > deliver > applications > filters > URIMapperCache


1 /* ===============================================================================
2 *
3 * Part of the InfoGlue Content Management Platform (www.infoglue.org)
4 *
5 * ===============================================================================
6 *
7 * Copyright (C)
8 *
9 * This program is free software; you can redistribute it and/or modify it under
10 * the terms of the GNU General Public License version 2, as published by the
11 * Free Software Foundation. See the file LICENSE.html for more information.
12 *
13 * This program is distributed in the hope that it will be useful, but WITHOUT
14 * ANY WARRANTY, including the implied warranty of MERCHANTABILITY or FITNESS
15 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc. / 59 Temple
19 * Place, Suite 330 / Boston, MA 02111-1307 / USA.
20 *
21 * ===============================================================================
22 */
23
24 package org.infoglue.deliver.applications.filters;
25
26 import org.infoglue.deliver.util.CacheController;
27
28
29 /**
30  * Created by IntelliJ IDEA.
31  * User: lbj
32  * Date: 09-02-2004
33  * Time: 09:25:28
34  * To change this template use Options | File Templates.
35  */
36
37 public class URIMapperCache
38 {
39     private static URIMapperCache instance = null;
40     
41     final String JavaDoc CACHE_NAME = "NavigationCache";
42     
43     public URIMapperCache()
44     {
45     }
46
47     public synchronized static URIMapperCache getInstance()
48     {
49         if (instance == null) {
50             instance = new URIMapperCache();
51         }
52         return instance;
53     }
54
55     public void clear()
56     {
57     }
58
59     public Integer JavaDoc getCachedSiteNodeId(Integer JavaDoc repositoryId, String JavaDoc[] path, int upToIndex)
60     {
61         if (repositoryId == null || path == null)
62             return null;
63         String JavaDoc cacheKey = createCacheKey(repositoryId, path, upToIndex);
64         return (Integer JavaDoc)CacheController.getCachedObject(CACHE_NAME, cacheKey);
65     }
66
67     public boolean addCachedSiteNodeId(Integer JavaDoc repositoryId, String JavaDoc[] path, int upToIndex, Integer JavaDoc siteNodeId)
68     {
69         if (repositoryId == null || path == null || siteNodeId == null)
70             return false;
71         String JavaDoc cacheKey = createCacheKey(repositoryId, path, upToIndex);
72         CacheController.cacheObject(CACHE_NAME, cacheKey, siteNodeId);
73         return true;
74     }
75
76     private String JavaDoc createCacheKey(Integer JavaDoc repositoryId, String JavaDoc[] path, int upToIndex)
77     {
78         StringBuffer JavaDoc sb = new StringBuffer JavaDoc(128);
79         sb.append(String.valueOf(repositoryId)).append(":/");
80         for (int i=0;i < path.length && i < upToIndex ;i++) {
81             sb.append(path[i].toLowerCase()).append("/");
82         }
83         return sb.toString();
84     }
85 }
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