Newtonsoft.Json\Serialization\JsonFormatterConverter.cs

#region License

// Copyright (c) 2007 James Newton-King

//

// 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.

#endregion

#if !SILVERLIGHT && !PocketPC

using System;

using System.Collections.Generic;

using System.Globalization;

using System.Linq;

using System.Runtime.Serialization;

using System.Text;

using Newtonsoft.Json.Utilities;

using Newtonsoft.Json.Linq;

namespace Newtonsoft.Json.Serialization

{

  internal class JsonFormatterConverter : IFormatterConverter

  {

    private readonly JsonSerializer _serializer;

    public JsonFormatterConverter(JsonSerializer serializer)

    {

      ValidationUtils.ArgumentNotNull(serializer, "serializer");

      _serializer = serializer;

    }

    private T GetTokenValue<T>(object value)

    {

      ValidationUtils.ArgumentNotNull(value, "value");

      JValue v = (JValue)value;

      return (T)System.Convert.ChangeType(v.Value, typeof(T), CultureInfo.InvariantCulture);

    }

    public object Convert(object value, Type type)

    {

      ValidationUtils.ArgumentNotNull(value, "value");

      JToken token = value as JToken;

      if (token == null)

        throw new ArgumentException("Value is not a JToken.", "value");

      return _serializer.Deserialize(token.CreateReader(), type);

    }

    public object Convert(object value, TypeCode typeCode)

    {

      ValidationUtils.ArgumentNotNull(value, "value");

      if (value is JValue)

        value = ((JValue) value).Value;

      return System.Convert.ChangeType(value, typeCode, CultureInfo.InvariantCulture);

    }

    public bool ToBoolean(object value)

    {

      return GetTokenValue<bool>(value);

    }

    public byte ToByte(object value)

    {

      return GetTokenValue<byte>(value);

    }

    public char ToChar(object value)

    {

      return GetTokenValue<char>(value);

    }

    public DateTime ToDateTime(object value)

    {

      return GetTokenValue<DateTime>(value);

    }

    public decimal ToDecimal(object value)

    {

      return GetTokenValue<decimal>(value);

    }

    public double ToDouble(object value)

    {

      return GetTokenValue<double>(value);

    }

    public short ToInt16(object value)

    {

      return GetTokenValue<short>(value);

    }

    public int ToInt32(object value)

    {

      return GetTokenValue<int>(value);

    }

    public long ToInt64(object value)

    {

      return GetTokenValue<long>(value);

    }

    public sbyte ToSByte(object value)

    {

      return GetTokenValue<sbyte>(value);

    }

    public float ToSingle(object value)

    {

      return GetTokenValue<float>(value);

    }

    public string ToString(object value)

    {

      return GetTokenValue<string>(value);

    }

    public ushort ToUInt16(object value)

    {

      return GetTokenValue<ushort>(value);

    }

    public uint ToUInt32(object value)

    {

      return GetTokenValue<uint>(value);

    }

    public ulong ToUInt64(object value)

    {

      return GetTokenValue<ulong>(value);

    }

  }

}

#endif