001/* ActivationDataFlavor.java -- Activation-specific DataFlavor instance.
002   Copyright (C) 2004 Free Software Foundation, Inc.
003
004This file is part of GNU Classpath.
005
006GNU Classpath is free software; you can redistribute it and/or modify
007it under the terms of the GNU General Public License as published by
008the Free Software Foundation; either version 2, or (at your option)
009any later version.
010
011GNU Classpath is distributed in the hope that it will be useful, but
012WITHOUT ANY WARRANTY; without even the implied warranty of
013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014General Public License for more details.
015
016You should have received a copy of the GNU General Public License
017along with GNU Classpath; see the file COPYING.  If not, write to the
018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
01902110-1301 USA.
020
021Linking this library statically or dynamically with other modules is
022making a combined work based on this library.  Thus, the terms and
023conditions of the GNU General Public License cover the whole
024combination.
025
026As a special exception, the copyright holders of this library give you
027permission to link this library with independent modules to produce an
028executable, regardless of the license terms of these independent
029modules, and to copy and distribute the resulting executable under
030terms of your choice, provided that you also meet, for each linked
031independent module, the terms and conditions of the license of that
032module.  An independent module is a module which is not derived from
033or based on this library.  If you modify this library, you may extend
034this exception to your version of the library, but you are not
035obligated to do so.  If you do not wish to do so, delete this
036exception statement from your version. */
037
038package javax.activation;
039
040import gnu.java.lang.CPStringBuilder;
041
042import java.awt.datatransfer.DataFlavor;
043import 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 */
051public 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}