1   /**
2    * Copyright (c) 2000-2009 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   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17   * SOFTWARE.
18   */
19  
20  package com.liferay.portal.events;
21  
22  import com.liferay.portal.kernel.events.Action;
23  import com.liferay.portal.util.WebKeys;
24  
25  import java.util.Map;
26  
27  import javax.servlet.http.HttpServletRequest;
28  import javax.servlet.http.HttpServletResponse;
29  import javax.servlet.http.HttpSession;
30  
31  /**
32   * <a href="ClearRenderParametersAction.java.html"><b><i>View Source</i></b></a>
33   *
34   * @author Brian Wing Shun Chan
35   *
36   */
37  public class ClearRenderParametersAction extends Action {
38  
39      public void run(HttpServletRequest request, HttpServletResponse response) {
40  
41          // Some users are confused by the behavior stated in the JSR 168 spec
42          // that render parameters are saved across requests. Set this class to
43          // always clear render parameters to please those users. You can also
44          // modify the "layout.remember.request.window.state.maximized" property
45          // in portal.properties to disable the remembering of window states
46          // across requests.
47  
48          HttpSession session = request.getSession();
49  
50          Map<Long, Map<String, Map<String, String[]>>> renderParametersPool =
51              (Map<Long, Map<String, Map<String, String[]>>>)session.getAttribute(
52                  WebKeys.PORTLET_RENDER_PARAMETERS);
53  
54          if (renderParametersPool != null) {
55              renderParametersPool.clear();
56          }
57      }
58  
59  }