mcs/class/Novell.Directory.Ldap/Novell.Directory.Ldap.Extensions/ListReplicasResponse.cs

   1 /******************************************************************************
   2 * The MIT License
   3 * Copyright (c) 2003 Novell Inc.  www.novell.com
   4 *
   5 * Permission is hereby granted, free of charge, to any person obtaining  a copy
   6 * of this software and associated documentation files (the Software), to deal
   7 * in the Software without restriction, including  without limitation the rights
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  10 * furnished to do so, subject to the following conditions:
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  23 //
  24 // Novell.Directory.Ldap.Extensions.ListReplicasResponse.cs
  25 //
  26 // Author:
  27 //   Sunil Kumar (Sunilk@novell.com)
  28 //
  29 // (C) 2003 Novell, Inc (http://www.novell.com)
  30 //
  31
  32 using System;
  33 using Novell.Directory.Ldap;
  34 using Novell.Directory.Ldap.Asn1;
  35 using Novell.Directory.Ldap.Utilclass;
  36 using Novell.Directory.Ldap.Rfc2251;
  37
  38 namespace Novell.Directory.Ldap.Extensions
  39 {
  40
  41         /// <summary> Retrieves the list of replicas from the specified server.
  42         ///
  43         /// An object in this class is generated from an ExtendedResponse object
  44         /// using the ExtendedResponseFactory class.
  45         ///
  46         /// The listReplicaResponse extension uses the following OID:
  47         /// 2.16.840.1.113719.1.27.20
  48         ///
  49         /// </summary>
  50         public class ListReplicasResponse:LdapExtendedResponse
  51         {
  52                 /// <summary> Returns a list of distinguished names for the replicas on the server.
  53                 ///
  54                 /// </summary>
  55                 /// <returns> String value specifying the identity returned by the server
  56                 /// </returns>
  57                 virtual public System.String[] ReplicaList
  58                 {
  59                         get
  60                         {
  61                                 return replicaList;
  62                         }
  63
  64                 }
  65
  66                 // Identity returned by the server
  67                 private System.String[] replicaList;
  68
  69                 /// <summary> Constructs an object from the responseValue which contains the list
  70                 /// of replicas.
  71                 ///
  72                 /// The constructor parses the responseValue which has the following
  73                 /// format:
  74                 /// responseValue ::=
  75                 ///   replicaList
  76                 /// SEQUENCE OF OCTET STRINGS
  77                 ///
  78                 /// </summary>
  79                 /// <exception> IOException  The responseValue could not be decoded.
  80                 /// </exception>
  81                 public ListReplicasResponse(RfcLdapMessage rfcMessage):base(rfcMessage)
  82                 {
  83
  84                         if (ResultCode != LdapException.SUCCESS)
  85                         {
  86                                 replicaList = new System.String[0];
  87                         }
  88                         else
  89                         {
  90                                 // parse the contents of the reply
  91                                 sbyte[] returnedValue = this.Value;
  92                                 if (returnedValue == null)
  93                                         throw new System.IO.IOException("No returned value");
  94
  95                                 // Create a decoder object
  96                                 LBERDecoder decoder = new LBERDecoder();
  97                                 if (decoder == null)
  98                                         throw new System.IO.IOException("Decoding error");
  99
 100                                 // We should get back a sequence
 101                                 Asn1Sequence returnedSequence = (Asn1Sequence) decoder.decode(returnedValue);
 102                                 if (returnedSequence == null)
 103                                         throw new System.IO.IOException("Decoding error");
 104
 105                                 // How many replicas were returned
 106                                 int len = returnedSequence.size();
 107                                 replicaList = new System.String[len];
 108
 109                                 // Copy each one into our String array
 110                                 for (int i = 0; i < len; i++)
 111                                 {
 112                                         // Get the next Asn1Octet String in the sequence
 113                                         Asn1OctetString asn1_nextReplica = (Asn1OctetString) returnedSequence.get_Renamed(i);
 114                                         if (asn1_nextReplica == null)
 115                                                 throw new System.IO.IOException("Decoding error");
 116
 117                                         // Convert to a string
 118                                         replicaList[i] = asn1_nextReplica.stringValue();
 119                                         if ((System.Object) replicaList[i] == null)
 120                                                 throw new System.IO.IOException("Decoding error");
 121                                 }
 122                         }
 123                 }
 124         }
 125 }