Source for javax.activation.ActivationDataFlavor

   1: /* ActivationDataFlavor.java -- Activation-specific DataFlavor instance.
   2:    Copyright (C) 2004 Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: package javax.activation;
  39: 
  40: import gnu.java.lang.CPStringBuilder;
  41: 
  42: import java.awt.datatransfer.DataFlavor;
  43: import java.io.InputStream;
  44: 
  45: /**
  46:  * Activation-specific DataFlavor with improved MIME parsing.
  47:  *
  48:  * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
  49:  * @version 1.0.2
  50:  */
  51: public class ActivationDataFlavor extends DataFlavor
  52: {
  53: 
  54:     private final String mimeType;
  55:     private final Class<?> representationClass;
  56:     private String humanPresentableName;
  57: 
  58:     /**
  59:      * Constructor.
  60:      * @param representationClass the representation class
  61:      * @param mimeType the MIME type of the data
  62:      * @param humanPresentableName the human-presentable name of the data
  63:      * flavor
  64:      */
  65:   // Raw types enforced as part of spec.
  66:   @SuppressWarnings("rawtypes")
  67:     public ActivationDataFlavor(Class representationClass, String mimeType,
  68:             String humanPresentableName)
  69:     {
  70:         super(mimeType, humanPresentableName);
  71:         this.mimeType = mimeType;
  72:         this.humanPresentableName = humanPresentableName;
  73:         this.representationClass = representationClass;
  74:     }
  75: 
  76:     /**
  77:      * Constructor.
  78:      * @param representationClass the representation class
  79:      * @param humanPresentableName the human-presentable name of the data
  80:      * flavor
  81:      */
  82:   // Raw types enforced as part of spec.
  83:   @SuppressWarnings("rawtypes")
  84:     public ActivationDataFlavor(Class representationClass,
  85:             String humanPresentableName)
  86:     {
  87:         super(representationClass, humanPresentableName);
  88:         mimeType = super.getMimeType();
  89:         this.representationClass = representationClass;
  90:         this.humanPresentableName = humanPresentableName;
  91:     }
  92: 
  93:     /**
  94:      * Constructor. The representation class is an InputStream.
  95:      * @param mimeType the MIME type of the data
  96:      * @param humanPresentableName the human-presentable name of the data
  97:      * flavor
  98:      */
  99:     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("rawtypes")
 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: }