moel@109: /*
moel@109:  
moel@344:   This Source Code Form is subject to the terms of the Mozilla Public
moel@344:   License, v. 2.0. If a copy of the MPL was not distributed with this
moel@344:   file, You can obtain one at http://mozilla.org/MPL/2.0/.
moel@109:  
moel@344:   Copyright (C) 2009-2010 Michael Möller <mmoeller@openhardwaremonitor.org>
moel@344: 	
moel@109: */
moel@109: 
moel@109: using System;
moel@195: using System.Collections.Generic;
moel@109: using System.Text;
moel@109: 
moel@109: namespace OpenHardwareMonitor.Hardware {
moel@176:   public class Identifier : IComparable<Identifier> {
moel@195:     private readonly string identifier;
moel@109: 
moel@195:     private const char Separator = '/';
moel@109: 
moel@195:     private static void CheckIdentifiers(IEnumerable<string> identifiers) {      
moel@109:       foreach (string s in identifiers)
moel@195:         if (s.Contains(" ") || s.Contains(Separator.ToString()))
moel@109:           throw new ArgumentException("Invalid identifier");
moel@109:     }
moel@109: 
moel@109:     public Identifier(params string[] identifiers) {
moel@109:       CheckIdentifiers(identifiers);
moel@109: 
moel@109:       StringBuilder s = new StringBuilder();
moel@109:       for (int i = 0; i < identifiers.Length; i++) {
moel@195:         s.Append(Separator);
moel@109:         s.Append(identifiers[i]);
moel@109:       }
moel@109:       this.identifier = s.ToString();
moel@109:     }
moel@109: 
moel@109:     public Identifier(Identifier identifier, params string[] extensions) {
moel@109:       CheckIdentifiers(extensions);
moel@109: 
moel@109:       StringBuilder s = new StringBuilder();
moel@109:       s.Append(identifier.ToString());
moel@109:       for (int i = 0; i < extensions.Length; i++) {
moel@195:         s.Append(Separator);
moel@109:         s.Append(extensions[i]);
moel@109:       }
moel@109:       this.identifier = s.ToString();
moel@109:     }
moel@109: 
moel@109:     public override string ToString() {
moel@109:       return identifier;
moel@109:     }
moel@109: 
moel@195:     public override bool Equals(Object obj) {
moel@109:       if (obj == null)
moel@109:         return false;
moel@109: 
moel@109:       Identifier id = obj as Identifier;
moel@109:       if (id == null)
moel@109:         return false;
moel@109: 
moel@109:       return (identifier == id.identifier);
moel@109:     }
moel@109: 
moel@109:     public override int GetHashCode() {
moel@109:       return identifier.GetHashCode();
moel@109:     }
moel@176: 
moel@176:     public int CompareTo(Identifier other) {
moel@176:       if (other == null)
moel@176:         return 1;
moel@176:       else 
moel@182:         return string.Compare(this.identifier, other.identifier, 
moel@182:           StringComparison.Ordinal);
moel@176:     }
moel@182: 
moel@182:     public static bool operator ==(Identifier id1, Identifier id2) {
moel@184:       if (id1.Equals(null))
moel@184:         return id2.Equals(null);
moel@182:       else
moel@182:         return id1.Equals(id2);
moel@182:     }
moel@182: 
moel@182:     public static bool operator !=(Identifier id1, Identifier id2) {
moel@182:       return !(id1 == id2);
moel@182:     }
moel@182: 
moel@182:     public static bool operator <(Identifier id1, Identifier id2) {
moel@182:       if (id1 == null)
moel@182:         return id2 != null;
moel@182:       else 
moel@182:         return (id1.CompareTo(id2) < 0);
moel@182:     }
moel@182: 
moel@182:     public static bool operator >(Identifier id1, Identifier id2) {
moel@182:       if (id1 == null)
moel@182:         return false;
moel@182:       else 
moel@182:         return (id1.CompareTo(id2) > 0);
moel@182:     }  
moel@182: 
moel@109:   }
moel@109: }