mcs/class/corlib/System/OperatingSystem.cs

   1 //------------------------------------------------------------------------------\r
   2 // \r
   3 // System.OperatingSystem.cs \r
   4 //\r
   5 // Copyright (C) 2001 Moonlight Enterprises, All Rights Reserved\r
   6 // \r
   7 // Author:         Jim Richardson, develop@wtfo-guru.com\r
   8 // Created:        Saturday, August 11, 2001 \r
   9 //\r
  10 //------------------------------------------------------------------------------\r
  11 \r
  12 using System;\r
  13 using System.Globalization;\r
  14 \r
  15 namespace System\r
  16 {\r
  17         /// <summary>\r
  18         /// Class representing a specific operating system version for a specific platform\r
  19         /// </summary>\r
  20         [Serializable]\r
  21         public sealed class OperatingSystem : ICloneable\r
  22         {\r
  23                 private System.PlatformID itsPlatform;\r
  24                 private Version itsVersion;\r
  25 \r
  26                 public OperatingSystem(PlatformID platform, Version version)\r
  27                 {\r
  28                         if(version == null)\r
  29                         {\r
  30                                 throw new ArgumentNullException();\r
  31                         }\r
  32                         \r
  33                         itsPlatform = platform;\r
  34                         itsVersion = version;\r
  35                 }\r
  36 \r
  37                 /// <summary>\r
  38                 /// Get the PlatformID\r
  39                 /// </summary>\r
  40                 public PlatformID Platform\r
  41                 {\r
  42                         get\r
  43                         {\r
  44                                 return itsPlatform;\r
  45                         }\r
  46                 }\r
  47 \r
  48                 /// <summary>\r
  49                 /// Gets the version object\r
  50                 /// </summary>\r
  51                 public Version Version\r
  52                 {\r
  53                         get\r
  54                         {\r
  55                                 return itsVersion;\r
  56                         }\r
  57                 }\r
  58 \r
  59                 /// <summary>\r
  60                 /// Return a clone of this object\r
  61                 /// </summary>\r
  62                 public object Clone()\r
  63                 {\r
  64                         return new OperatingSystem(itsPlatform, itsVersion);\r
  65                 }\r
  66 \r
  67                 /// <summary>\r
  68                 /// Return true if obj equals this object\r
  69                 /// </summary>\r
  70                 public override bool Equals(object obj)\r
  71                 {\r
  72                         //Check for null and compare run-time types.\r
  73                         if (obj == null || GetType() != obj.GetType()) return false;\r
  74                         OperatingSystem os = (OperatingSystem)obj;\r
  75                         return (itsPlatform == os.itsPlatform) && \r
  76                                 (os.itsVersion.Equals(itsVersion));\r
  77                 }\r
  78 \r
  79                 /// <summary>\r
  80                 /// Return hash code\r
  81                 /// </summary>\r
  82                 public override int GetHashCode()\r
  83                 {       // this leave us enuf for 256 unique platforms which should suffice for a good while\r
  84                         return ((int)itsPlatform << 24) | itsVersion.GetHashCode() >> 8;\r
  85                 }\r
  86 \r
  87                 /// <summary>\r
  88                 /// Return a string reprentation of this instance\r
  89                 /// </summary>\r
  90                 public override string ToString()\r
  91                 {\r
  92                         string str;\r
  93                         \r
  94                         switch(itsPlatform)\r
  95                         {\r
  96                         case System.PlatformID.Win32NT: str = "Microsoft Windows NT"; break;\r
  97                         case System.PlatformID.Win32S: str = "Microsoft Win32S";  break;\r
  98                         case System.PlatformID.Win32Windows: str = "Microsoft Windows 98"; break;\r
  99                         case System.PlatformID.Unix: str = "Unix"; break;\r
 100                         default: str = Locale.GetText ("<unknown>"); break;\r
 101                         }\r
 102 \r
 103                         return str + " " + itsVersion.ToString();\r
 104                 }\r
 105         }\r
 106 }\r