File: SerializableDictionary.cs

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//
// Authors:
//   Marek Habersack (mhabersack@novell.com)
//
// (C) 2010 Novell, Inc http://novell.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.
//
using System;
using System.Collections.Generic;
using System.Xml;
using System.Xml.Serialization;

namespace StandAloneRunnerSupport
{
	[Serializable]
	public class SerializableDictionary<TKey, TValue> : Dictionary<TKey, TValue>, IXmlSerializable
	{
		public System.Xml.Schema.XmlSchema GetSchema ()
		{
			return null;
		}

		public void ReadXml (XmlReader reader)
		{
			XmlSerializer keySerializer = new XmlSerializer (typeof (TKey));
			XmlSerializer valueSerializer = new XmlSerializer (typeof (TValue));

			bool wasEmpty = reader.IsEmptyElement;
			reader.Read ();

			if (wasEmpty)
				return;

			while (reader.NodeType != System.Xml.XmlNodeType.EndElement) {
				reader.ReadStartElement ("item");

				reader.ReadStartElement ("key");
				TKey key = (TKey) keySerializer.Deserialize (reader);
				reader.ReadEndElement ();

				reader.ReadStartElement ("value");
				TValue value = (TValue) valueSerializer.Deserialize (reader);
				reader.ReadEndElement ();

				this.Add (key, value);

				reader.ReadEndElement ();
				reader.MoveToContent ();
			}
			reader.ReadEndElement ();
		}

		public void WriteXml (XmlWriter writer)
		{
			XmlSerializer keySerializer = new XmlSerializer (typeof (TKey));
			XmlSerializer valueSerializer = new XmlSerializer (typeof (TValue));

			foreach (TKey key in this.Keys) {
				writer.WriteStartElement ("item");

				writer.WriteStartElement ("key");
				keySerializer.Serialize (writer, key);
				writer.WriteEndElement ();

				writer.WriteStartElement ("value");
				TValue value = this [key];
				valueSerializer.Serialize (writer, value);
				writer.WriteEndElement ();

				writer.WriteEndElement ();
			}
		}
	}
}