1   /**
2    * Copyright (c) 2000-2008 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.kernel.events.ActionException;
27  import com.liferay.portal.util.WebKeys;
28  
29  import java.util.Map;
30  
31  import javax.servlet.http.HttpServletRequest;
32  import javax.servlet.http.HttpServletResponse;
33  import javax.servlet.http.HttpSession;
34  
35  /**
36   * <a href="ClearRenderParametersAction.java.html"><b><i>View Source</i></b></a>
37   *
38   * @author Brian Wing Shun Chan
39   *
40   */
41  public class ClearRenderParametersAction extends Action {
42  
43      public void run(HttpServletRequest req, HttpServletResponse res)
44          throws ActionException {
45  
46          // Some users are confused by the behavior stated in the JSR 168 spec
47          // that render parameters are saved across requests. Set this class to
48          // always clear render parameters to please those users. You can also
49          // modify the "layout.remember.request.window.state.maximized" property
50          // in portal.properties to disable the remembering of window states
51          // across requests.
52  
53          HttpSession ses = req.getSession();
54  
55          Map<Long, Map<String, Map<String, String[]>>> renderParametersPool =
56              (Map<Long, Map<String, Map<String, String[]>>>)ses.getAttribute(
57                  WebKeys.PORTLET_RENDER_PARAMETERS);
58  
59          if (renderParametersPool != null) {
60              renderParametersPool.clear();
61          }
62      }
63  
64  }