source: trunk/sources/HeuristicLab.ExtLibs/HeuristicLab.Netron/3.0.2672.12446/Netron.Diagramming.Core-3.0.2672.12446/IO/NML/DictionarySerializer.cs @ 2769

using System;
using System.Collections;
using System.Xml;
using System.Xml.Serialization;
using System.IO;
using System.Xml.Schema;
namespace Netron.GraphLib.IO.NML
{
  class DictionarySerializer : IXmlSerializable
  {
    private IDictionary dictionary;

    public DictionarySerializer()
    {
      this.dictionary = new Hashtable();
    }

    private DictionarySerializer(IDictionary dictionary)
    {
      this.dictionary = dictionary;
    }

    public static void Serialize(IDictionary dictionary, Stream stream)
    {
      DictionarySerializer ds = new DictionarySerializer(dictionary);
      XmlSerializer xs = new XmlSerializer(typeof(DictionarySerializer));
      xs.Serialize(stream, ds);
    }

    public static IDictionary Deserialize(Stream stream)
    {
      XmlSerializer xs = new XmlSerializer(typeof(DictionarySerializer));
      DictionarySerializer ds = (DictionarySerializer)xs.Deserialize(stream);
      return ds.dictionary;
    }

    XmlSchema IXmlSerializable.GetSchema()
    {
      return null;
    }

    void IXmlSerializable.ReadXml(XmlReader reader)
    {
      reader.Read();
      reader.ReadStartElement("dictionary");
      while (reader.NodeType != XmlNodeType.EndElement)
      {
        reader.ReadStartElement("item");
        string key = reader.ReadElementString("key");
        string value = reader.ReadElementString("value");
        reader.ReadEndElement();
        reader.MoveToContent();
        dictionary.Add(key, value);
      }
      reader.ReadEndElement();
    }

    void IXmlSerializable.WriteXml(XmlWriter writer)
    {
      writer.WriteStartElement("dictionary");
      foreach (object key in dictionary.Keys)
      {
        object value = dictionary[key];
        writer.WriteStartElement("item");
        writer.WriteElementString("key", key.ToString());
        writer.WriteElementString("value", value.ToString());
        writer.WriteEndElement();
      }
      writer.WriteEndElement();
    }
  }
}