irc/TechBot/TechBot.Library/WinerrorCommand.cs

   1 using System;
   2 using System.Xml;
   3
   4 namespace TechBot.Library
   5 {
   6         public class WinerrorCommand : XmlCommand
   7         {
   8         public WinerrorCommand(TechBotService techBot)
   9             : base(techBot)
  10                 {
  11                 }
  12
  13         public override string XmlFile
  14         {
  15             get { return Settings.Default.WinErrorXml; }
  16         }
  17
  18         public override string[] AvailableCommands
  19         {
  20             get { return new string[] { "winerror" }; }
  21         }
  22
  23                 public override void Handle(MessageContext context,
  24                                    string commandName,
  25                                    string parameters)
  26                 {
  27                         string winerrorText = parameters;
  28                         if (winerrorText.Equals(String.Empty))
  29                         {
  30                                 TechBot.ServiceOutput.WriteLine(context,
  31                                                         "Please provide a valid System Error Code value.");
  32                                 return;
  33                         }
  34
  35                         NumberParser np = new NumberParser();
  36                         long winerror = np.Parse(winerrorText);
  37                         if (np.Error)
  38                         {
  39                 TechBot.ServiceOutput.WriteLine(context,
  40                                                         String.Format("{0} is not a valid System Error Code value.",
  41                                                                       winerrorText));
  42                                 return;
  43                         }
  44
  45                         string description = GetWinerrorDescription(winerror);
  46                         if (description != null)
  47                         {
  48                 TechBot.ServiceOutput.WriteLine(context,
  49                                                         String.Format("{0} is {1}.",
  50                                                                       winerrorText,
  51                                                                       description));
  52                         }
  53                         else
  54                         {
  55                 TechBot.ServiceOutput.WriteLine(context,
  56                                                         String.Format("I don't know about System Error Code {0}.",
  57                                                                       winerrorText));
  58                         }
  59                 }
  60
  61         public override string Help()
  62                 {
  63                         return "!winerror <value>";
  64                 }
  65
  66                 public string GetWinerrorDescription(long winerror)
  67                 {
  68                         XmlElement root = base.m_XmlDocument.DocumentElement;
  69                         XmlNode node = root.SelectSingleNode(String.Format("Winerror[@value='{0}']",
  70                                                                            winerror));
  71                         if (node != null)
  72                         {
  73                                 XmlAttribute text = node.Attributes["text"];
  74                                 if (text == null)
  75                                         throw new Exception("Node has no text attribute.");
  76                                 return text.Value;
  77                         }
  78                         else
  79                                 return null;
  80                 }
  81         }
  82 }