001 /* ActivationDataFlavor.java -- Activation-specific DataFlavor instance. 002 Copyright (C) 2004 Free Software Foundation, Inc. 003 004 This file is part of GNU Classpath. 005 006 GNU Classpath is free software; you can redistribute it and/or modify 007 it under the terms of the GNU General Public License as published by 008 the Free Software Foundation; either version 2, or (at your option) 009 any later version. 010 011 GNU Classpath is distributed in the hope that it will be useful, but 012 WITHOUT ANY WARRANTY; without even the implied warranty of 013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 General Public License for more details. 015 016 You should have received a copy of the GNU General Public License 017 along with GNU Classpath; see the file COPYING. If not, write to the 018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 019 02110-1301 USA. 020 021 Linking this library statically or dynamically with other modules is 022 making a combined work based on this library. Thus, the terms and 023 conditions of the GNU General Public License cover the whole 024 combination. 025 026 As a special exception, the copyright holders of this library give you 027 permission to link this library with independent modules to produce an 028 executable, regardless of the license terms of these independent 029 modules, and to copy and distribute the resulting executable under 030 terms of your choice, provided that you also meet, for each linked 031 independent module, the terms and conditions of the license of that 032 module. An independent module is a module which is not derived from 033 or based on this library. If you modify this library, you may extend 034 this exception to your version of the library, but you are not 035 obligated to do so. If you do not wish to do so, delete this 036 exception statement from your version. */ 037 038 package javax.activation; 039 040 import gnu.java.lang.CPStringBuilder; 041 042 import java.awt.datatransfer.DataFlavor; 043 import java.io.InputStream; 044 045 /** 046 * Activation-specific DataFlavor with improved MIME parsing. 047 * 048 * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> 049 * @version 1.0.2 050 */ 051 public class ActivationDataFlavor extends DataFlavor 052 { 053 054 private final String mimeType; 055 private final Class<?> representationClass; 056 private String humanPresentableName; 057 058 /** 059 * Constructor. 060 * @param representationClass the representation class 061 * @param mimeType the MIME type of the data 062 * @param humanPresentableName the human-presentable name of the data 063 * flavor 064 */ 065 // Raw types enforced as part of spec. 066 @SuppressWarnings("unchecked") 067 public ActivationDataFlavor(Class representationClass, String mimeType, 068 String humanPresentableName) 069 { 070 super(mimeType, humanPresentableName); 071 this.mimeType = mimeType; 072 this.humanPresentableName = humanPresentableName; 073 this.representationClass = representationClass; 074 } 075 076 /** 077 * Constructor. 078 * @param representationClass the representation class 079 * @param humanPresentableName the human-presentable name of the data 080 * flavor 081 */ 082 // Raw types enforced as part of spec. 083 @SuppressWarnings("unchecked") 084 public ActivationDataFlavor(Class representationClass, 085 String humanPresentableName) 086 { 087 super(representationClass, humanPresentableName); 088 mimeType = super.getMimeType(); 089 this.representationClass = representationClass; 090 this.humanPresentableName = humanPresentableName; 091 } 092 093 /** 094 * Constructor. The representation class is an InputStream. 095 * @param mimeType the MIME type of the data 096 * @param humanPresentableName the human-presentable name of the data 097 * flavor 098 */ 099 public ActivationDataFlavor(String mimeType, String humanPresentableName) 100 { 101 super(mimeType, humanPresentableName); 102 this.mimeType = mimeType; 103 this.humanPresentableName = humanPresentableName; 104 representationClass = InputStream.class; 105 } 106 107 public String getMimeType() 108 { 109 return mimeType; 110 } 111 112 // Raw types enforced as part of spec. 113 @SuppressWarnings("unchecked") 114 public Class getRepresentationClass() 115 { 116 return representationClass; 117 } 118 119 public String getHumanPresentableName() 120 { 121 return humanPresentableName; 122 } 123 124 public void setHumanPresentableName(String humanPresentableName) 125 { 126 this.humanPresentableName = humanPresentableName; 127 } 128 129 public boolean equals(DataFlavor dataFlavor) 130 { 131 return (isMimeTypeEqual(dataFlavor) && 132 dataFlavor.getRepresentationClass() == representationClass); 133 } 134 135 public boolean isMimeTypeEqual(String mimeType) 136 { 137 try 138 { 139 return new MimeType(this.mimeType).match(new MimeType(mimeType)); 140 } 141 catch (MimeTypeParseException e) 142 { 143 return false; 144 } 145 } 146 147 protected String normalizeMimeTypeParameter(String parameterName, 148 String parameterValue) 149 { 150 return new CPStringBuilder(parameterName) 151 .append('=') 152 .append(parameterValue) 153 .toString(); 154 } 155 156 protected String normalizeMimeType(String mimeType) 157 { 158 return mimeType; 159 } 160 161 }