JSON.NET Message Serializer for aspComet

JsonMessageSerializer.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using AspComet;
using Newtonsoft.Json;
using Newtonsoft.Json.Serialization;

namespace Teletrax.Common.Web.Comet
{
  public class JsonMessageSerializer: IMessageSerializer
  {
    public T Deserialize<T>(string input)
    {
      return JsonConvert.DeserializeObject<T>(input);
    }

    public string Serialize(object model)
    {
      return JsonConvert.SerializeObject(model, Formatting.None, new JsonSerializerSettings { ContractResolver = new AspCometMessageResolver() });
    }
  }

  public class AspCometMessageResolver : DefaultContractResolver
  {
    protected override IList<JsonProperty> CreateProperties(JsonObjectContract contract)
    {
      var properties = base.CreateProperties(contract);

      // Ignore null properties that are in the root of the message object
      if (contract.UnderlyingType == typeof(AspComet.Message))
      {
        foreach (var property in properties)
        {
          property.NullValueHandling = NullValueHandling.Ignore;
        }
      }
      return properties;
    }
  }
}