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.events;
24  
25  import com.liferay.portal.kernel.events.Action;
26  import com.liferay.portal.util.WebKeys;
27  
28  import java.util.Map;
29  
30  import javax.servlet.http.HttpServletRequest;
31  import javax.servlet.http.HttpServletResponse;
32  import javax.servlet.http.HttpSession;
33  
34  /**
35   * <a href="ClearRenderParametersAction.java.html"><b><i>View Source</i></b></a>
36   *
37   * @author Brian Wing Shun Chan
38   *
39   */
40  public class ClearRenderParametersAction extends Action {
41  
42      public void run(HttpServletRequest request, HttpServletResponse response) {
43  
44          // Some users are confused by the behavior stated in the JSR 168 spec
45          // that render parameters are saved across requests. Set this class to
46          // always clear render parameters to please those users. You can also
47          // modify the "layout.remember.request.window.state.maximized" property
48          // in portal.properties to disable the remembering of window states
49          // across requests.
50  
51          HttpSession session = request.getSession();
52  
53          Map<Long, Map<String, Map<String, String[]>>> renderParametersPool =
54              (Map<Long, Map<String, Map<String, String[]>>>)session.getAttribute(
55                  WebKeys.PORTLET_RENDER_PARAMETERS);
56  
57          if (renderParametersPool != null) {
58              renderParametersPool.clear();
59          }
60      }
61  
62  }