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 }