using System; using System.Xml; namespace TechBot.Library { public class WinerrorCommand : BaseCommand, ICommand { private IServiceOutput serviceOutput; private string winerrorXml; private XmlDocument winerrorXmlDocument; public WinerrorCommand(IServiceOutput serviceOutput, string winerrorXml) { this.serviceOutput = serviceOutput; this.winerrorXml = winerrorXml; winerrorXmlDocument = new XmlDocument(); winerrorXmlDocument.Load(winerrorXml); } public bool CanHandle(string commandName) { return CanHandle(commandName, new string[] { "winerror" }); } public void Handle(MessageContext context, string commandName, string parameters) { string winerrorText = parameters; if (winerrorText.Equals(String.Empty)) { serviceOutput.WriteLine(context, "Please provide a valid System Error Code value."); return; } NumberParser np = new NumberParser(); long winerror = np.Parse(winerrorText); if (np.Error) { serviceOutput.WriteLine(context, String.Format("{0} is not a valid System Error Code value.", winerrorText)); return; } string description = GetWinerrorDescription(winerror); if (description != null) { serviceOutput.WriteLine(context, String.Format("{0} is {1}.", winerrorText, description)); } else { serviceOutput.WriteLine(context, String.Format("I don't know about System Error Code {0}.", winerrorText)); } } public string Help() { return "!winerror "; } private string GetWinerrorDescription(long winerror) { XmlElement root = winerrorXmlDocument.DocumentElement; XmlNode node = root.SelectSingleNode(String.Format("Winerror[@value='{0}']", winerror)); 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; } } }