001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.commons.fileupload.servlet; 018 019import static java.lang.String.format; 020 021import java.io.IOException; 022import java.io.InputStream; 023 024import javax.servlet.http.HttpServletRequest; 025 026import org.apache.commons.fileupload.FileUploadBase; 027import org.apache.commons.fileupload.UploadContext; 028 029/** 030 * <p>Provides access to the request information needed for a request made to 031 * an HTTP servlet.</p> 032 * 033 * @since FileUpload 1.1 034 */ 035public class ServletRequestContext implements UploadContext { 036 037 // ----------------------------------------------------- Instance Variables 038 039 /** 040 * The request for which the context is being provided. 041 */ 042 private final HttpServletRequest request; 043 044 // ----------------------------------------------------------- Constructors 045 046 /** 047 * Construct a context for this request. 048 * 049 * @param request The request to which this context applies. 050 */ 051 public ServletRequestContext(HttpServletRequest request) { 052 this.request = request; 053 } 054 055 // --------------------------------------------------------- Public Methods 056 057 /** 058 * Retrieve the character encoding for the request. 059 * 060 * @return The character encoding for the request. 061 */ 062 @Override 063 public String getCharacterEncoding() { 064 return request.getCharacterEncoding(); 065 } 066 067 /** 068 * Retrieve the content type of the request. 069 * 070 * @return The content type of the request. 071 */ 072 @Override 073 public String getContentType() { 074 return request.getContentType(); 075 } 076 077 /** 078 * Retrieve the content length of the request. 079 * 080 * @return The content length of the request. 081 * @deprecated 1.3 Use {@link #contentLength()} instead 082 */ 083 @Override 084 @Deprecated 085 public int getContentLength() { 086 return request.getContentLength(); 087 } 088 089 /** 090 * Retrieve the content length of the request. 091 * 092 * @return The content length of the request. 093 * @since 1.3 094 */ 095 @Override 096 public long contentLength() { 097 long size; 098 try { 099 size = Long.parseLong(request.getHeader(FileUploadBase.CONTENT_LENGTH)); 100 } catch (NumberFormatException e) { 101 size = request.getContentLength(); 102 } 103 return size; 104 } 105 106 /** 107 * Retrieve the input stream for the request. 108 * 109 * @return The input stream for the request. 110 * 111 * @throws IOException if a problem occurs. 112 */ 113 @Override 114 public InputStream getInputStream() throws IOException { 115 return request.getInputStream(); 116 } 117 118 /** 119 * Returns a string representation of this object. 120 * 121 * @return a string representation of this object. 122 */ 123 @Override 124 public String toString() { 125 return format("ContentLength=%s, ContentType=%s", 126 Long.valueOf(this.contentLength()), 127 this.getContentType()); 128 } 129 130}