001 // Copyright 2004, 2005 The Apache Software Foundation 002 // 003 // Licensed under the Apache License, Version 2.0 (the "License"); 004 // you may not use this file except in compliance with the License. 005 // You may obtain a copy of the License at 006 // 007 // http://www.apache.org/licenses/LICENSE-2.0 008 // 009 // Unless required by applicable law or agreed to in writing, software 010 // distributed under the License is distributed on an "AS IS" BASIS, 011 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012 // See the License for the specific language governing permissions and 013 // limitations under the License. 014 015 package org.apache.tapestry.multipart; 016 017 import java.io.File; 018 import java.io.IOException; 019 import java.io.InputStream; 020 021 import org.apache.commons.fileupload.FileItem; 022 import org.apache.hivemind.ApplicationRuntimeException; 023 import org.apache.hivemind.util.Defense; 024 import org.apache.tapestry.Tapestry; 025 import org.apache.tapestry.request.IUploadFile; 026 027 /** 028 * Portion of a multi-part request representing an uploaded file. 029 * 030 * @author Joe Panico 031 * @since 2.0.1 032 */ 033 public class UploadPart extends Object implements IUploadFile 034 { 035 private FileItem _fileItem; 036 037 public UploadPart(FileItem fileItem) 038 { 039 Defense.notNull(fileItem, "fileItem"); 040 041 _fileItem = fileItem; 042 } 043 044 public String getContentType() 045 { 046 return _fileItem.getContentType(); 047 } 048 049 /** 050 * Leverages {@link File}to convert the full file path and extract the name. 051 */ 052 public String getFileName() 053 { 054 File file = new File(this.getFilePath()); 055 056 return file.getName(); 057 } 058 059 /** 060 * @since 2.0.4 061 */ 062 063 public String getFilePath() 064 { 065 return _fileItem.getName(); 066 } 067 068 public InputStream getStream() 069 { 070 try 071 { 072 return _fileItem.getInputStream(); 073 } 074 catch (IOException ex) 075 { 076 throw new ApplicationRuntimeException(MultipartMessages.unableToOpenContentFile( 077 this, 078 ex), ex); 079 } 080 } 081 082 /** 083 * Deletes the external content file, if one exists. 084 */ 085 086 public void cleanup() 087 { 088 _fileItem.delete(); 089 } 090 091 /** 092 * Writes the uploaded content to a file. This should be invoked at most once (perhaps we should 093 * add a check for this). This will often be a simple file rename. 094 * 095 * @since 3.0 096 */ 097 public void write(File file) 098 { 099 try 100 { 101 _fileItem.write(file); 102 } 103 catch (Exception ex) 104 { 105 throw new ApplicationRuntimeException(Tapestry.format( 106 "UploadPart.write-failure", 107 file, 108 ex.getMessage()), ex); 109 } 110 } 111 112 /** 113 * @since 3.0 114 */ 115 public long getSize() 116 { 117 return _fileItem.getSize(); 118 } 119 120 /** 121 * @since 3.0 122 */ 123 public boolean isInMemory() 124 { 125 return _fileItem.isInMemory(); 126 } 127 128 }