1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.servlet.filters.threadlocalcache;
24  
25  import com.liferay.portal.kernel.dao.orm.EntityCacheUtil;
26  import com.liferay.portal.kernel.dao.orm.FinderCacheUtil;
27  import com.liferay.portal.security.permission.PermissionCacheUtil;
28  import com.liferay.portal.servlet.filters.BasePortalFilter;
29  
30  import java.io.IOException;
31  
32  import javax.servlet.FilterChain;
33  import javax.servlet.ServletException;
34  import javax.servlet.http.HttpServletRequest;
35  import javax.servlet.http.HttpServletResponse;
36  
37  /**
38   * <a href="ThreadLocalCacheFilter.java.html"><b><i>View Source</i></b></a>
39   *
40   * @author Brian Wing Shun Chan
41   *
42   */
43  public class ThreadLocalCacheFilter extends BasePortalFilter {
44  
45      protected void processFilter(
46              HttpServletRequest request, HttpServletResponse response,
47              FilterChain filterChain)
48          throws IOException, ServletException {
49  
50          try {
51              EntityCacheUtil.setLocalCacheEnabled(true);
52              FinderCacheUtil.setLocalCacheEnabled(true);
53              PermissionCacheUtil.setLocalCacheEnabled(true);
54  
55              processFilter(
56                  ThreadLocalCacheFilter.class, request, response, filterChain);
57          }
58          finally {
59              EntityCacheUtil.clearLocalCache();
60              FinderCacheUtil.clearLocalCache();
61              PermissionCacheUtil.clearLocalCache();
62          }
63      }
64  
65  }