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.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 }