libjava/classpath/gnu/javax/crypto/keyring/PrimitiveEntry.java

   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 extends Entry
  47 {
  48
  49   // Fields.
  50   // ------------------------------------------------------------------------
  51
  52   /** The creation date. */
  53   protected Date creationDate;
  54
  55   // Constructor.
  56   // ------------------------------------------------------------------------
  57
  58   protected PrimitiveEntry(int type, Date creationDate, Properties properties)
  59   {
  60     super(type, properties);
  61     if (creationDate == null)
  62       {
  63         this.creationDate = new Date();
  64       }
  65     else
  66       {
  67         this.creationDate = (Date) creationDate.clone();
  68       }
  69     if (!this.properties.containsKey("alias")
  70         || this.properties.get("alias").length() == 0)
  71       {
  72         throw new IllegalArgumentException(
  73                                            "primitive entries MUST have an alias");
  74       }
  75     this.properties.put("creation-date", String.valueOf(creationDate.getTime()));
  76   }
  77
  78   protected PrimitiveEntry(int type)
  79   {
  80     super(type);
  81   }
  82
  83   // Instance method.
  84   // ------------------------------------------------------------------------
  85
  86   /**
  87    * Returns the alias of this primitive entry.
  88    *
  89    * @return The alias.
  90    */
  91   public String getAlias()
  92   {
  93     return properties.get("alias");
  94   }
  95
  96   /**
  97    * Returns the creation date of this primitive entry.
  98    *
  99    * @return The creation date.
 100    */
 101   public Date getCreationDate()
 102   {
 103     return (Date) creationDate.clone();
 104   }
 105
 106   public boolean equals(Object object)
 107   {
 108     if (!getClass().equals(object.getClass()))
 109       return false;
 110     return getAlias().equals(((PrimitiveEntry) object).getAlias());
 111   }
 112
 113   protected final void makeCreationDate() throws MalformedKeyringException
 114   {
 115     String s = properties.get("creation-date");
 116     if (s == null)
 117       {
 118         throw new MalformedKeyringException("no creation date");
 119       }
 120     try
 121       {
 122         creationDate = new Date(Long.parseLong(s));
 123       }
 124     catch (NumberFormatException nfe)
 125       {
 126         throw new MalformedKeyringException("invalid creation date");
 127       }
 128   }
 129 }