using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Runtime.Serialization.Formatters;

using System.IO;

using System.Data;

using System.ComponentModel.DataAnnotations;

using System.Globalization;

​

​

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using Newtonsoft.Json.Converters;

using Newtonsoft.Json.Serialization;    

​

    // https://stackoverflow.com/questions/47802385/deserialize-string-that-was-serialized-with-typenamehandling-all

​

    public class Rootobject

    {

        public string Name { get; set; }

        public string Language { get; set; }

        public List<Actor> Actors { get; set; }

    }

​

    public class Actor

    {

        public string Name { get; set; }

    }

​

    // IgnoreCollectionTypeConverter and extension methods taken from 

    // https://stackoverflow.com/questions/34162456/strategies-for-migrating-serialized-json-net-document-between-versions-formats/34166777

​

    public class IgnoreCollectionTypeConverter : JsonConverter

    {

        public IgnoreCollectionTypeConverter() { }

​

        public IgnoreCollectionTypeConverter(Type ItemConverterType)

        {

            this.ItemConverterType = ItemConverterType;

        }

​

        public Type ItemConverterType { get; set; }

​

        public override bool CanConvert(Type objectType)

        {

            // TODO: test with read-only collections.

            return objectType.GetCollectItemTypes().Count() == 1 && !objectType.IsDictionary() && !objectType.IsArray;

        }

​

        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)

        {

            if (!CanConvert(objectType))

                throw new JsonSerializationException(string.Format("Invalid type \"{0}\"", objectType));

            if (reader.TokenType == JsonToken.Null)

                return null;

            var token = JToken.Load(reader);

            var itemConverter = (ItemConverterType == null ? null : (JsonConverter)Activator.CreateInstance(ItemConverterType, true));

            if (itemConverter != null)

                serializer.Converters.Add(itemConverter);

​

            try

            {

                return ToCollection(token, objectType, existingValue, serializer);

            }

            finally

            {

                if (itemConverter != null)

                    serializer.Converters.RemoveLast(itemConverter);

            }

        }

​

        private static object ToCollection(JToken token, Type collectionType, object existingValue, JsonSerializer serializer)

        {

            if (token == null || token.Type == JTokenType.Null)

                return null;

            else if (token.Type == JTokenType.Array)

            {

                // Here we assume that existingValue already is of the correct type, if non-null.

                existingValue = serializer.DefaultCreate<object>(collectionType, existingValue);

                token.PopulateObject(existingValue, serializer);

                return existingValue;

            }

            else if (token.Type == JTokenType.Object)

            {

                var values = token["$values"];

                if (values == null)

                    return null;

                return ToCollection(values, collectionType, existingValue, serializer);

            }

            else

            {

                throw new JsonSerializationException("Unknown token type: " + token.ToString());

            }

        }

​

        public override bool CanWrite { get { return false; } }

​

        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)

        {

            throw new NotImplementedException();

        }

    }

​

    public static class JsonExtensions

    {

        public static T DefaultCreate<T>(this JsonSerializer serializer, Type objectType, object existingValue)

        {

            if (serializer == null)

                throw new ArgumentNullException();

            if (existingValue is T)

                return (T)existingValue;

            return (T)serializer.ContractResolver.ResolveContract(objectType).DefaultCreator();

        }

​

        public static void PopulateObject(this JToken obj, object target, JsonSerializer serializer)

        {

            if (target == null)

                throw new NullReferenceException();

            if (obj == null)

                return;

            using (var reader = obj.CreateReader())

                serializer.Populate(reader, target);

        }

    }

​

    public static class TypeExtensions

    {

        /// <summary>

        /// Return all interfaces implemented by the incoming type as well as the type itself if it is an interface.

        /// </summary>

        /// <param name="type"></param>

        /// <returns></returns>

        public static IEnumerable<Type> GetInterfacesAndSelf(this Type type)

        {

            if (type == null)

                throw new ArgumentNullException();

            if (type.IsInterface)

                return new[] { type }.Concat(type.GetInterfaces());

            else

                return type.GetInterfaces();

        }

​

        public static IEnumerable<Type> GetCollectItemTypes(this Type type)

        {

            foreach (Type intType in type.GetInterfacesAndSelf())

            {

                if (intType.IsGenericType

                    && intType.GetGenericTypeDefinition() == typeof(ICollection<>))

                {

                    yield return intType.GetGenericArguments()[0];

                }

            }

        }

​

        public static bool IsDictionary(this Type type)

        {

            if (typeof(IDictionary).IsAssignableFrom(type))

                return true;

​

            foreach (Type intType in type.GetInterfacesAndSelf())

            {

                if (intType.IsGenericType

                    && intType.GetGenericTypeDefinition() == typeof(IDictionary<,>))

                {

                    return true;

                }

            }

            return false;

        }

    }

​

    public static class ListExtensions

    {

        public static bool RemoveLast<T>(this IList<T> list, T item)

        {

            if (list == null)

                throw new ArgumentNullException();

            var comparer = EqualityComparer<T>.Default;

            for (int i = list.Count - 1; i >= 0; i--)

            {

                if (comparer.Equals(list[i], item))

                {

                    list.RemoveAt(i);

                    return true;

                }

            }

            return false;

        }

    }

​

    class TestClass

    {

        public static void Test()

        {

            var s = GetJson();

​

            var settings = new JsonSerializerSettings

            {

                Converters = { new IgnoreCollectionTypeConverter() },

            };

            var movie = JsonConvert.DeserializeObject<Rootobject>(s, settings);

​

            Console.WriteLine(JsonConvert.SerializeObject(movie, Formatting.Indented));

        }

​

        static string GetJson()

        {

            var json = @"{

  ""$type"": ""ConsoleAppCompare.Movie, ConsoleAppCompare"",

  ""Name"": ""Avengers"",

  ""Language"": ""En"",

  ""Actors"": {

    ""$type"": ""ConsoleAppCompare.Character[], ConsoleAppCompare"",

    ""$values"": [

      {

        ""$type"": ""ConsoleAppCompare.Character, ConsoleAppCompare"",

        ""Name"": ""Phil Coulson""

      },

      {

        ""$type"": ""ConsoleAppCompare.Character, ConsoleAppCompare"",

        ""Name"": ""Tony Stark""

      }

    ]

  }

}";

            return json;

        }

    }

​

    public class Program

    {

        public static void Main()

        {

            Console.WriteLine("Environment version: " + Environment.Version);

            Console.WriteLine("Json.NET version: " + typeof(JsonSerializer).Assembly.FullName);

            Console.WriteLine();

​

            try

            {

                TestClass.Test();

            }

            catch (Exception ex)

            {

                Console.WriteLine("Failed with unhandled exception: ");

                Console.WriteLine(ex);

                throw;

            }

        }

    }

​

    public class AssertionFailedException : System.Exception

    {

        public AssertionFailedException() : base() { }

​

        public AssertionFailedException(string s) : base(s) { }

    }

​

    public static class Assert

    {

        public static void IsTrue(bool value)

        {

            IsTrue(value, "failed");

        }

​

        public static void IsTrue(bool value, string message)

        {

            if (value == false)

                throw new AssertionFailedException(message ?? "failed");

        }

    }

​