mono/mcs/class/System.Net.Http/System.Net.Http.Headers/ViaHeaderValue.cs

//
// ViaHeaderValue.cs
//
// Authors:
//	Marek Safar  <[email protected]>
//
// Copyright (C) 2011 Xamarin Inc (http://www.xamarin.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

namespace System.Net.Http.Headers
{
	public class ViaHeaderValue : ICloneable
	{
		public ViaHeaderValue (string protocolVersion, string receivedBy)
		{
			ProtocolVersion = protocolVersion;
			ReceivedBy = receivedBy;
		}

		public ViaHeaderValue (string protocolVersion, string receivedBy, string protocolName)
			: this (protocolVersion, receivedBy)
		{
			ProtocolName = protocolName;
		}

		public ViaHeaderValue (string protocolVersion, string receivedBy, string protocolName, string comment)
			: this (protocolVersion, receivedBy, protocolName)
		{
			Comment = comment;
		}

		public string Comment { get; private set; }
		public string ProtocolName { get; private set; }
		public string ProtocolVersion { get; private set; }
		public string ReceivedBy { get; private set; }

		object ICloneable.Clone ()
		{
			return MemberwiseClone ();
		}

		public override bool Equals (object obj)
		{
			var source = obj as ViaHeaderValue;
			if (source == null)
				return false;

			return string.Equals (source.Comment, Comment, StringComparison.Ordinal) &&
				string.Equals (source.ProtocolName, ProtocolName, StringComparison.OrdinalIgnoreCase) &&
				string.Equals (source.ProtocolVersion, ProtocolVersion, StringComparison.OrdinalIgnoreCase) &&
				string.Equals (source.ReceivedBy, ReceivedBy, StringComparison.OrdinalIgnoreCase);
		}

		public override int GetHashCode ()
		{
			int hc = ProtocolVersion.ToLowerInvariant ().GetHashCode ();
			hc ^= ReceivedBy.ToLowerInvariant ().GetHashCode ();

			if (!string.IsNullOrEmpty (ProtocolName)) {
				hc ^= ProtocolName.ToLowerInvariant ().GetHashCode ();
			}

			if (!string.IsNullOrEmpty (Comment)) {
				hc ^= Comment.GetHashCode ();
			}

			return hc;
		}

		public static ViaHeaderValue Parse (string input)
		{
			ViaHeaderValue value;
			if (TryParse (input, out value))
				return value;

			throw new FormatException (input);
		}
		
		public static bool TryParse (string input, out ViaHeaderValue parsedValue)
		{
			throw new NotImplementedException ();
		}
	}
}