Source for gnu.javax.net.ssl.provider.ContentType

   1: /* ContentType.java -- SSL record layer content type.
   2:    Copyright (C) 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.net.ssl.provider;
  40: 
  41: /**
  42:  * The content type enumeration, which marks packets in the record layer.
  43:  *
  44:  * <pre>
  45: enum { change_cipher_spec(20), alert(21), handshake(22),
  46:        application_data(23), (255) } ContentType;</pre>
  47:  *
  48:  * <p>There is also a "pseudo" content type, <code>client_hello_v2
  49:  * (1)</code>, which is used for backwards compatibility with SSLv2.
  50:  *
  51:  * @author Casey Marshall (rsdio@metastatic.org)
  52:  */
  53: public enum ContentType
  54: {
  55: 
  56:   CLIENT_HELLO_V2    ( 1),
  57:   CHANGE_CIPHER_SPEC (20),
  58:   ALERT              (21),
  59:   HANDSHAKE          (22),
  60:   APPLICATION_DATA   (23);
  61: 
  62:   private int value;
  63: 
  64:   // Constructors.
  65:   // ------------------------------------------------------------------------
  66: 
  67:   private ContentType(int value)
  68:   {
  69:     this.value = value;
  70:   }
  71: 
  72:   static final ContentType forInteger (final int value)
  73:   {
  74:     switch (value & 0xFF)
  75:       {
  76:       case  1: return CLIENT_HELLO_V2;
  77:       case 20: return CHANGE_CIPHER_SPEC;
  78:       case 21: return ALERT;
  79:       case 22: return HANDSHAKE;
  80:       case 23: return APPLICATION_DATA;
  81:       default: return null;
  82:       }
  83:   }
  84: 
  85:   public int getValue()
  86:   {
  87:     return value;
  88:   }
  89: }