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// --------------------------------------------------------------------------------------------------------------------
// <copyright file="SerializableDictionary.cs" company="HandBrake Project (http://handbrake.fr)">
// This file is part of the HandBrake source code - It may be used under the terms of the GNU General Public License.
// </copyright>
// <summary>
// A Serializable Dictionary
// </summary>
// --------------------------------------------------------------------------------------------------------------------
namespace HandBrake.ApplicationServices.Collections
{
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Xml.Serialization;
/// <summary>
/// A Serializable Dictionary
/// </summary>
/// <typeparam name="TKey">
/// The Key Type
/// </typeparam>
/// <typeparam name="TValue">
/// The Value Type
/// </typeparam>
[XmlRoot("dictionary")]
public class SerializableDictionary<TKey, TValue> : Dictionary<TKey, TValue>, IXmlSerializable
{
#region IXmlSerializable Members
/// <summary>
/// Get the Schema
/// </summary>
/// <returns>
/// Nothing. We don't use this.
/// </returns>
public System.Xml.Schema.XmlSchema GetSchema()
{
return null;
}
/// <summary>
/// Deserialize some XML into a dictionary
/// </summary>
/// <param name="reader">
/// The reader.
/// </param>
public void ReadXml(System.Xml.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;
if (reader.Name.Contains("ArrayOfString"))
{
XmlSerializer scSerializer = new XmlSerializer(typeof(StringCollection));
value = (TValue)scSerializer.Deserialize(reader);
}
else
{
value = (TValue)valueSerializer.Deserialize(reader);
}
reader.ReadEndElement();
this.Add(key, value);
reader.ReadEndElement();
reader.MoveToContent();
}
reader.ReadEndElement();
}
/// <summary>
/// Write the Dictionary out to XML
/// </summary>
/// <param name="writer">
/// The writer.
/// </param>
public void WriteXml(System.Xml.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];
if (value.GetType() == typeof(StringCollection))
{
XmlSerializer scSerializer = new XmlSerializer(typeof(StringCollection));
scSerializer.Serialize(writer, value);
writer.WriteEndElement();
}
else
{
valueSerializer.Serialize(writer, value);
writer.WriteEndElement();
}
writer.WriteEndElement();
}
}
#endregion
}
}
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