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svn path=/trunk/; revision=13064
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Casper Hornstrup 2005-01-15 19:27:25 +00:00
parent 568b27baeb
commit 9dab4509fa
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81
irc/TechBot/TechBot.Library/HresultCommand.cs Normal file
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using System;
using System.Xml;
namespace TechBot.Library
{
public class HresultCommand : BaseCommand, ICommand
{
private IServiceOutput serviceOutput;
private string hresultXml;
private XmlDocument hresultXmlDocument;
public HresultCommand(IServiceOutput serviceOutput,
string hresultXml)
{
this.serviceOutput = serviceOutput;
this.hresultXml = hresultXml;
hresultXmlDocument = new XmlDocument();
hresultXmlDocument.Load(hresultXml);
}
public bool CanHandle(string commandName)
{
return CanHandle(commandName,
new string[] { "hresult" });
}
public void Handle(string commandName,
string parameters)
{
string hresultText = parameters;
if (hresultText.Equals(String.Empty))
{
serviceOutput.WriteLine("Please provide a valid HRESULT value.");
return;
}
NumberParser np = new NumberParser();
long hresult = np.Parse(hresultText);
if (np.Error)
{
serviceOutput.WriteLine(String.Format("{0} is not a valid HRESULT value.",
hresultText));
return;
}
string description = GetHresultDescription(hresult);
if (description != null)
{
serviceOutput.WriteLine(String.Format("{0} is {1}.",
hresultText,
description));
}
else
{
serviceOutput.WriteLine(String.Format("I don't know about HRESULT {0}.",
hresultText));
}
}
public string Help()
{
return "!hresult <value>";
}
private string GetHresultDescription(long hresult)
{
XmlElement root = hresultXmlDocument.DocumentElement;
XmlNode node = root.SelectSingleNode(String.Format("Hresult[@value='{0}']",
hresult.ToString("X8")));
if (node != null)
{
XmlAttribute text = node.Attributes["text"];
if (text == null)
throw new Exception("Node has no text attribute.");
return text.Value;
}
else
return null;
}
}
}