Source for gnu.java.security.x509.ext.PrivateKeyUsagePeriod

   1: /* PrivateKeyUsagePeriod.java -- private key usage period extension.
   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: 
  39: package gnu.java.security.x509.ext;
  40: 
  41: import gnu.java.security.OID;
  42: import gnu.java.security.der.DER;
  43: import gnu.java.security.der.DERReader;
  44: import gnu.java.security.der.DERValue;
  45: 
  46: import java.io.IOException;
  47: import java.util.Date;
  48: 
  49: public class PrivateKeyUsagePeriod extends Extension.Value
  50: {
  51: 
  52:   // Constants and fields.
  53:   // -------------------------------------------------------------------------
  54: 
  55:   public static final OID ID = new OID("2.5.29.16");
  56: 
  57:   private final Date notBefore;
  58:   private final Date notAfter;
  59: 
  60:   // Constructor.
  61:   // -------------------------------------------------------------------------
  62: 
  63:   public PrivateKeyUsagePeriod(final byte[] encoded) throws IOException
  64:   {
  65:     super(encoded);
  66:     DERReader der = new DERReader(encoded);
  67:     DERValue val = der.read();
  68:     if (!val.isConstructed())
  69:       throw new IOException("malformed PrivateKeyUsagePeriod");
  70:     if (val.getLength() > 0)
  71:       val = der.read();
  72:     if (val.getTagClass() == DER.APPLICATION || val.getTag() == 0)
  73:       {
  74:         notBefore = (Date) val.getValueAs (DER.GENERALIZED_TIME);
  75:         val = der.read();
  76:       }
  77:     else
  78:       notBefore = null;
  79:     if (val.getTagClass() == DER.APPLICATION || val.getTag() == 1)
  80:       {
  81:         notAfter = (Date) val.getValueAs (DER.GENERALIZED_TIME);
  82:       }
  83:     else
  84:       notAfter = null;
  85:   }
  86: 
  87:   // Instance methods.
  88:   // -------------------------------------------------------------------------
  89: 
  90:   public Date getNotBefore()
  91:   {
  92:     return notBefore != null ? (Date) notBefore.clone() : null;
  93:   }
  94: 
  95:   public Date getNotAfter()
  96:   {
  97:     return notAfter != null ? (Date) notAfter.clone() : null;
  98:   }
  99: 
 100:   public String toString()
 101:   {
 102:     return PrivateKeyUsagePeriod.class.getName() + " [ notBefore=" + notBefore
 103:       + " notAfter=" + notAfter + " ]";
 104:   }
 105: }