RiotAwareCacheableControllerHandlerAdapter


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) 2007
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.website.cache;
25  
26  import javax.servlet.http.HttpServletRequest  ;
27  
28  import org.riotfamily.cachius.Cache;
29  import org.riotfamily.cachius.CacheItem;
30  import org.riotfamily.cachius.spring.CacheableControllerHandlerAdapter;
31  import org.riotfamily.riot.security.AccessController;
32  
33  /**
34   * CacheableControllerHandlerAdapter subclass that adds a prefix to the 
35   * cache-key when a request is performed by an authenticated Riot user.
36   *   
37   * @author Felix Gnass [fgnass at neteye dot de]
38   * @since 6.5
39   */
40  public class RiotAwareCacheableControllerHandlerAdapter 
41          extends CacheableControllerHandlerAdapter {
42  
43      private String   riotCacheKeyPrefix = "riot:";
44      
45      public RiotAwareCacheableControllerHandlerAdapter(Cache cache) {
46          super(cache);
47      }
48  
49      /**
50       * Sets the prefix that is added to the cache-key if the request is 
51       * performed by an authenticated Riot user.
52       */
53      public void setRiotCacheKeyPrefix(String   riotCacheKeyPrefix) {
54          this.riotCacheKeyPrefix = riotCacheKeyPrefix;
55      }
56  
57      protected CacheItem getCacheItem(String   cacheKey, 
58              HttpServletRequest   request) {
59          
60          if (cacheKey != null && AccessController.isAuthenticatedUser()) {
61              cacheKey = riotCacheKeyPrefix + cacheKey;
62          }
63          return super.getCacheItem(cacheKey, request);
64      }
65  }
66
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