001    /**
002     * Copyright (c) 2000-present 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.kernel.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                            if (_log.isInfoEnabled()) {
033                                    Class<?> clazz = tempRequest.getClass();
034    
035                                    _log.info("Request class " + clazz.getName());
036                            }
037    
038                            if (tempRequest instanceof HttpServletRequestWrapper) {
039                                    HttpServletRequestWrapper requestWrapper =
040                                            (HttpServletRequestWrapper)tempRequest;
041    
042                                    tempRequest = (HttpServletRequest)requestWrapper.getRequest();
043                            }
044                            else {
045                                    break;
046                            }
047                    }
048            }
049    
050            private static final Log _log = LogFactoryUtil.getLog(
051                    ServletRequestUtil.class);
052    
053    }