libjava/javax/security/auth/x500/X500Principal.java

   1 /* X500Principal.java -- X.500 principal.
   2    Copyright (C) 2003 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., 59 Temple Place, Suite 330, Boston, MA
  19 02111-1307 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
  39 package javax.security.auth.x500;
  40
  41 import java.io.ByteArrayInputStream;
  42 import java.io.IOException;
  43 import java.io.InputStream;
  44 import java.io.NotActiveException;
  45 import java.io.ObjectInputStream;
  46 import java.io.ObjectOutputStream;
  47 import java.io.Serializable;
  48
  49 import java.security.Principal;
  50
  51 import java.util.HashSet;
  52 import java.util.LinkedList;
  53
  54 import gnu.java.security.x509.X500DistinguishedName;
  55
  56 public final class X500Principal implements Principal, Serializable
  57 {
  58   private static final long serialVersionUID = -500463348111345721L;
  59
  60   // Constants and fields.
  61   // ------------------------------------------------------------------------
  62
  63   public static final String CANONICAL = "CANONICAL";
  64
  65   public static final String RFC1779 = "RFC1779";
  66
  67   public static final String RFC2253 = "RFC2253";
  68
  69   private transient X500DistinguishedName name;
  70
  71   // Constructors.
  72   // ------------------------------------------------------------------------
  73
  74   public X500Principal(String name)
  75   {
  76     if (name == null)
  77       throw new NullPointerException();
  78     this.name = new X500DistinguishedName(name);
  79   }
  80
  81   public X500Principal(byte[] encoded)
  82   {
  83     try
  84       {
  85         name = new X500DistinguishedName(encoded);
  86       }
  87     catch (IOException ioe)
  88       {
  89         throw new IllegalArgumentException(ioe.toString());
  90       }
  91   }
  92
  93   public X500Principal(InputStream encoded)
  94   {
  95     try
  96       {
  97         name = new X500DistinguishedName(encoded);
  98       }
  99     catch (IOException ioe)
 100       {
 101         throw new IllegalArgumentException(ioe.toString());
 102       }
 103   }
 104
 105   // Instance methods.
 106   // ------------------------------------------------------------------------
 107
 108   public boolean equals(Object o)
 109   {
 110     return ((X500Principal) o).name.equals(name);
 111   }
 112
 113   public byte[] getEncoded()
 114   {
 115     return name.getEncoded();
 116   }
 117
 118   public String getName()
 119   {
 120     return getName(RFC2253);
 121   }
 122
 123   public String getName(String format)
 124   {
 125     if (format.equalsIgnoreCase(RFC2253))
 126       return name.toRFC2253();
 127     else if (format.equalsIgnoreCase(RFC1779))
 128       return name.toRFC1779();
 129     else if (format.equalsIgnoreCase(CANONICAL))
 130       return name.toCanonical();
 131     throw new IllegalArgumentException("unsupported format " + format);
 132   }
 133
 134   // Serialization methods.
 135   // ------------------------------------------------------------------------
 136
 137   private void writeObject(ObjectOutputStream out) throws IOException
 138   {
 139     out.writeObject(name.getEncoded());
 140   }
 141
 142   private void readObject(ObjectInputStream in)
 143     throws IOException, NotActiveException, ClassNotFoundException
 144   {
 145     byte[] buf = (byte[]) in.readObject();
 146     name = new X500DistinguishedName(buf);
 147   }
 148 }