001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.events;
016    
017    import com.liferay.portal.kernel.events.Action;
018    import com.liferay.portal.kernel.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            @Override
032            public void run(HttpServletRequest request, HttpServletResponse response) {
033    
034                    // Some users are confused by the behavior stated in the JSR 168 spec
035                    // that render parameters are saved across requests. Set this class to
036                    // always clear render parameters to please those users. You can also
037                    // modify the "layout.remember.request.window.state.maximized" property
038                    // in portal.properties to disable the remembering of window states
039                    // across requests.
040    
041                    HttpSession session = request.getSession();
042    
043                    Map<Long, Map<String, Map<String, String[]>>> renderParametersPool =
044                            (Map<Long, Map<String, Map<String, String[]>>>)session.getAttribute(
045                                    WebKeys.PORTLET_RENDER_PARAMETERS);
046    
047                    if (renderParametersPool != null) {
048                            renderParametersPool.clear();
049                    }
050            }
051    
052    }