001 /** 002 * Copyright (c) 2000-2011 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.upload; 016 017 import java.io.IOException; 018 019 import javax.servlet.ServletInputStream; 020 import javax.servlet.http.HttpServletRequest; 021 import javax.servlet.http.HttpServletRequestWrapper; 022 023 /** 024 * @author Brian Myunghun Kim 025 * @author Brian Wing Shun Chan 026 */ 027 public class LiferayServletRequest extends HttpServletRequestWrapper { 028 029 public LiferayServletRequest(HttpServletRequest request) { 030 super(request); 031 032 _request = request; 033 } 034 035 public ServletInputStream getInputStream() throws IOException { 036 if (_lis == null) { 037 _lis = new LiferayInputStream(_request); 038 039 return _lis; 040 } 041 else { 042 043 // Return the cached input stream the second time the user requests 044 // the input stream, otherwise, it will return an empty input stream 045 // because it has already been parsed 046 047 return _lis.getCachedInputStream(); 048 } 049 } 050 051 private HttpServletRequest _request; 052 private LiferayInputStream _lis = null; 053 054 }