001    /**
002     * Copyright (c) 2000-2010 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.util.servlet;
016    
017    import com.liferay.portal.kernel.log.Log;
018    import com.liferay.portal.kernel.log.LogFactoryUtil;
019    
020    import javax.servlet.http.HttpServletRequest;
021    import javax.servlet.http.HttpServletRequestWrapper;
022    
023    /**
024     * @author Brian Wing Shun Chan
025     */
026    public class ServletRequestUtil {
027    
028            public static void logRequestWrappers(HttpServletRequest request) {
029                    HttpServletRequest tempRequest = request;
030    
031                    while (true) {
032                            _log.info("Request class " + tempRequest.getClass().getName());
033    
034                            if (tempRequest instanceof HttpServletRequestWrapper) {
035                                    HttpServletRequestWrapper requestWrapper =
036                                            (HttpServletRequestWrapper)tempRequest;
037    
038                                    tempRequest = (HttpServletRequest)requestWrapper.getRequest();
039                            }
040                            else {
041                                    break;
042                            }
043                    }
044            }
045    
046            private static Log _log = LogFactoryUtil.getLog(ServletRequestUtil.class);
047    
048    }