001    /**
002     * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
003     *
004     * The contents of this file are subject to the terms of the Liferay Enterprise
005     * Subscription License ("License"). You may not use this file except in
006     * compliance with the License. You can obtain a copy of the License by
007     * contacting Liferay, Inc. See the License for the specific language governing
008     * permissions and limitations under the License, including but not limited to
009     * distribution rights of the Software.
010     *
011     *
012     *
013     */
014    
015    package com.liferay.portal.events;
016    
017    import com.liferay.portal.kernel.events.Action;
018    import com.liferay.portal.util.WebKeys;
019    
020    import java.util.Map;
021    
022    import javax.servlet.http.HttpServletRequest;
023    import javax.servlet.http.HttpServletResponse;
024    import javax.servlet.http.HttpSession;
025    
026    /**
027     * @author Brian Wing Shun Chan
028     */
029    public class ClearRenderParametersAction extends Action {
030    
031            public void run(HttpServletRequest request, HttpServletResponse response) {
032    
033                    // Some users are confused by the behavior stated in the JSR 168 spec
034                    // that render parameters are saved across requests. Set this class to
035                    // always clear render parameters to please those users. You can also
036                    // modify the "layout.remember.request.window.state.maximized" property
037                    // in portal.properties to disable the remembering of window states
038                    // across requests.
039    
040                    HttpSession session = request.getSession();
041    
042                    Map<Long, Map<String, Map<String, String[]>>> renderParametersPool =
043                            (Map<Long, Map<String, Map<String, String[]>>>)session.getAttribute(
044                                    WebKeys.PORTLET_RENDER_PARAMETERS);
045    
046                    if (renderParametersPool != null) {
047                            renderParametersPool.clear();
048                    }
049            }
050    
051    }