mcs/class/Mono.Messaging/Mono.Messaging/QueueReference.cs

   1 //
   2 // Mono.Messaging
   3 //
   4 // Authors:
   5 //              Michael Barker (mike@middlesoft.co.uk)
   6 //
   7 // (C) 2008 Michael Barker
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System;
  32 using System.Text.RegularExpressions;
  33
  34 namespace Mono.Messaging
  35 {
  36         public sealed class QueueReference
  37         {
  38                 private static readonly char[] DELIM = new char[] { '\\' };
  39                 private readonly string host;
  40                 private readonly bool isPrivate;
  41                 private readonly string queue;
  42                 public static readonly string LOCALHOST = ".";
  43                 public static readonly QueueReference DEFAULT = new QueueReference (LOCALHOST, null, false);
  44                 private static readonly string PRIVATE_STR = "private$";
  45
  46                 public QueueReference (string host, string queue, bool isPrivate)
  47                 {
  48                         this.host = host;
  49                         this.isPrivate = isPrivate;
  50                         this.queue = queue;
  51                 }
  52
  53                 public string Host {
  54                         get {
  55                                 if (host == LOCALHOST)
  56                                         return "localhost";
  57                                 else
  58                                         return host;
  59                         }
  60                 }
  61
  62                 public string Queue {
  63                         get {
  64                                 if (isPrivate)
  65                                         return PRIVATE_STR + @"\" + queue;
  66                                 else
  67                                         return queue;
  68                         }
  69                 }
  70
  71                 public bool IsPrivate {
  72                         get { return isPrivate; }
  73                 }
  74
  75                 public QueueReference SetHost (string host)
  76                 {
  77                         return new QueueReference (host, this.queue, this.isPrivate);
  78                 }
  79
  80                 public QueueReference SetQueue (string queue)
  81                 {
  82                         return new QueueReference (this.host, queue, this.isPrivate);
  83                 }
  84
  85
  86                 public override bool Equals (object other)
  87                 {
  88                         if (other == null)
  89                                 return false;
  90                         else if (typeof (QueueReference) != other.GetType ())
  91                                 return false;
  92                         else {
  93                                 QueueReference qr = (QueueReference) other;
  94                                 return Equals (qr);
  95                         }
  96                 }
  97
  98                 public bool Equals (QueueReference other)
  99                 {
 100                         return host == other.host
 101                                 && isPrivate == other.isPrivate
 102                                 && queue == other.queue;
 103                 }
 104
 105                 public override int GetHashCode ()
 106                 {
 107                         return queue == null ? 0 : queue.GetHashCode () + host.GetHashCode ();
 108                 }
 109
 110                 public static QueueReference Parse (string path)
 111                 {
 112                         string trimedPath = RemoveLeadingSlashes (path);
 113                         string[] parts = trimedPath.Split (DELIM, 3);
 114
 115                         if (parts.Length == 0) {
 116                                 throw new ArgumentException ();
 117                         } else if (parts.Length == 1) {
 118                                 return new QueueReference (QueueReference.LOCALHOST, parts[0], false);
 119                         } else if (parts.Length == 2) {
 120                                 return new QueueReference (parts[0], parts[1], false);
 121                         } else {
 122                                 return new QueueReference (parts[0], parts[2], IsPrivateStr (parts[1]));
 123                         }
 124                 }
 125
 126                 public static bool IsPrivateStr (string s)
 127                 {
 128                         return PRIVATE_STR == s.ToLower ();
 129                 }
 130
 131                 public static string RemoveLeadingSlashes (string s)
 132                 {
 133                         int idx = 0;
 134                         while (idx < s.Length && (s[idx] == '\\'))
 135                                 idx++;
 136                         return s.Substring (idx);
 137                 }
 138
 139                 public override string ToString ()
 140                 {
 141                         if (IsPrivate) {
 142                                 return Host + "\\" + PRIVATE_STR + "\\" + queue;
 143                         } else {
 144                                 return Host + "\\" + Queue;
 145                         }
 146                 }
 147
 148                 public static bool operator == (QueueReference a, QueueReference b)
 149                 {
 150                         return a.Equals (b);
 151                 }
 152
 153                 public static bool operator != (QueueReference a, QueueReference b)
 154                 {
 155                         return !a.Equals (b);
 156                 }
 157         }
 158 }
 159