1   /**
2    * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3    *
4    * The contents of this file are subject to the terms of the Liferay Enterprise
5    * Subscription License ("License"). You may not use this file except in
6    * compliance with the License. You can obtain a copy of the License by
7    * contacting Liferay, Inc. See the License for the specific language governing
8    * permissions and limitations under the License, including but not limited to
9    * distribution rights of the Software.
10   *
11   *
12   *
13   */
14  
15  package com.liferay.portal.events;
16  
17  import com.liferay.portal.kernel.events.Action;
18  import com.liferay.portal.util.WebKeys;
19  
20  import java.util.Map;
21  
22  import javax.servlet.http.HttpServletRequest;
23  import javax.servlet.http.HttpServletResponse;
24  import javax.servlet.http.HttpSession;
25  
26  /**
27   * <a href="ClearRenderParametersAction.java.html"><b><i>View Source</i></b></a>
28   *
29   * @author Brian Wing Shun Chan
30   */
31  public class ClearRenderParametersAction extends Action {
32  
33      public void run(HttpServletRequest request, HttpServletResponse response) {
34  
35          // Some users are confused by the behavior stated in the JSR 168 spec
36          // that render parameters are saved across requests. Set this class to
37          // always clear render parameters to please those users. You can also
38          // modify the "layout.remember.request.window.state.maximized" property
39          // in portal.properties to disable the remembering of window states
40          // across requests.
41  
42          HttpSession session = request.getSession();
43  
44          Map<Long, Map<String, Map<String, String[]>>> renderParametersPool =
45              (Map<Long, Map<String, Map<String, String[]>>>)session.getAttribute(
46                  WebKeys.PORTLET_RENDER_PARAMETERS);
47  
48          if (renderParametersPool != null) {
49              renderParametersPool.clear();
50          }
51      }
52  
53  }