Source for gnu.javax.crypto.keyring.PrimitiveEntry

   1: /* PrimitiveEntry.java --
   2:    Copyright (C) 2003, 2006 Free Software Foundation, Inc.
   3: 
   4: This file is a 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 of the License, or (at
   9: your option) 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; if not, write to the Free Software
  18: Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
  19: 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 gnu.javax.crypto.keyring;
  40: 
  41: import java.util.Date;
  42: 
  43: /**
  44:  * A primitive entry is an entry that contains a single cryptographic entity.
  45:  */
  46: public abstract class PrimitiveEntry
  47:     extends Entry
  48: {
  49:   /** The creation date. */
  50:   protected Date creationDate;
  51: 
  52:   protected PrimitiveEntry(int type, Date creationDate, Properties properties)
  53:   {
  54:     super(type, properties);
  55:     if (creationDate == null)
  56:       this.creationDate = new Date();
  57:     else
  58:       this.creationDate = (Date) creationDate.clone();
  59:     if (! this.properties.containsKey("alias")
  60:         || this.properties.get("alias").length() == 0)
  61:       throw new IllegalArgumentException("primitive entries MUST have an alias");
  62:     this.properties.put("creation-date",
  63:                         String.valueOf(this.creationDate.getTime()));
  64:   }
  65: 
  66:   protected PrimitiveEntry(int type)
  67:   {
  68:     super(type);
  69:   }
  70: 
  71:   /**
  72:    * Returns the alias of this primitive entry.
  73:    *
  74:    * @return The alias.
  75:    */
  76:   public String getAlias()
  77:   {
  78:     return properties.get("alias");
  79:   }
  80: 
  81:   /**
  82:    * Returns the creation date of this primitive entry.
  83:    *
  84:    * @return The creation date.
  85:    */
  86:   public Date getCreationDate()
  87:   {
  88:     return (Date) creationDate.clone();
  89:   }
  90: 
  91:   public boolean equals(Object object)
  92:   {
  93:     if (! getClass().equals(object.getClass()))
  94:       return false;
  95:     return getAlias().equals(((PrimitiveEntry) object).getAlias());
  96:   }
  97: 
  98:   protected final void makeCreationDate() throws MalformedKeyringException
  99:   {
 100:     String s = properties.get("creation-date");
 101:     if (s == null)
 102:       throw new MalformedKeyringException("no creation date");
 103:     try
 104:       {
 105:         creationDate = new Date(Long.parseLong(s));
 106:       }
 107:     catch (NumberFormatException nfe)
 108:       {
 109:         throw new MalformedKeyringException("invalid creation date");
 110:       }
 111:   }
 112: }