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 System.Reflection;

using System.Collections.ObjectModel;

using System.Threading;

using System.Runtime.Serialization;

​

using Newtonsoft.Json;

using Newtonsoft.Json.Linq;

using Newtonsoft.Json.Converters;

using Newtonsoft.Json.Serialization;    

​

using NUnit.Framework; // Throws NUnit.Framework.AssertionException

​

//https://stackoverflow.com/questions/67707119/ignoring-jsonconverter-attribute-for-one-serialisation-call

​

    public partial class MyJsonClass 

    {

        public MyJsonClass x { get; set; }

    }

    [JsonConverter(typeof(MyConverter))]

    public partial class MyJsonClass 

    {

        [OnSerializing]

        void OnSerializingMethod(StreamingContext context) => MyConverter.PushDisabled(false); // Re-enable the converter after we begin to serialize the object

​

        [OnSerialized]

        void OnSerializedMethod(StreamingContext context) => MyConverter.PopDisabled(); // Restore the converter to its previous state when serialization is complete

​

        [OnDeserializing] 

        void OnDeserializingMethod(StreamingContext context) => MyConverter.PushDisabled(false); // Re-enable the converter after we begin to deserialize the object

​

        [OnDeserialized]

        void OnDeserializedMethod(StreamingContext context) => MyConverter.PopDisabled(); // Restore the converter to its previous state when deserialization is complete

    }

​

    sealed class MyConverter : RecursiveConverterBase<MyJsonClass, MyConverter>

    {

        class DTO { public MyJsonClass MyJsonClass { get; set; } }

        protected override void WriteJsonWithDefault(JsonWriter writer, object value, JsonSerializer serializer)

        {

            // Add your custom logic here.

            writer.WriteStartObject();

            writer.WritePropertyName(nameof(DTO.MyJsonClass));

            serializer.Serialize(writer, value);

            writer.WriteEndObject();

        }

​

        protected override object ReadJsonWithDefault(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)

        {

            using (var pushValue = PushDisabledUsing(true))

            {

                // Add your custom logic here.

                return serializer.Deserialize<DTO>(reader)?.MyJsonClass;

            }

        }

    }

​

    public abstract class RecursiveConverterBase<TValue, TConverter> : JsonConverter where TConverter : RecursiveConverterBase<TValue, TConverter>

    {

        static readonly ThreadLocal<Stack<bool>> disabledStack = new (() => new Stack<bool>());

        public static StackExtensions.PushValue<bool> PushDisabledUsing(bool disable) => disabledStack.Value.PushUsing(disable);

        public static void PushDisabled(bool disable)

        {

            if (InSerialization)

                disabledStack.Value.Push(disable);

        }

        public static void PopDisabled()

        {

            if (InSerialization)

                disabledStack.Value.Pop();

        }

        static bool Disabled => disabledStack.IsValueCreated && disabledStack.Value.TryPeek(out var disabled) && disabled;

        static bool InSerialization => disabledStack.IsValueCreated && disabledStack.Value.Count > 0;

​

        public override bool CanRead => !Disabled;

        public override bool CanWrite => !Disabled;

​

        public override bool CanConvert(Type objectType) => typeof(TValue).IsAssignableFrom(objectType); // Or typeof(TValue) == objectType if you prefer.

​

        protected abstract void WriteJsonWithDefault(JsonWriter writer, object value, JsonSerializer serializer);

​

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

        {

            using (var pushValue = PushDisabledUsing(true))

            {

                WriteJsonWithDefault(writer, value, serializer);

            }

        }

​

        protected abstract object ReadJsonWithDefault(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer);

​

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

        {

            using (var pushValue = PushDisabledUsing(true))

            {

                return ReadJsonWithDefault(reader, objectType, existingValue, serializer);

            }

        }

    }

​

    public static class StackExtensions

    {

        public class PushValue<T> : IDisposable

        {

            readonly Stack<T> stack;

            readonly int count;

​

            public PushValue(T value, Stack<T> stack)

            {

                this.stack = stack;

                this.count = stack.Count;

                stack.Push(value);

            }

​

            // By using a disposable struct we avoid the overhead of allocating and freeing an instance of a finalizable class.

            public void Dispose()

            {

                if (stack != null)

                {

                    while (stack.Count > count)

                        stack.Pop();

                }

            }

        }

​

        public static PushValue<T> PushUsing<T>(this Stack<T> stack, T value)

        {

            if (stack == null)

                throw new ArgumentNullException();

            return new PushValue<T>(value, stack);

        }

    }

    public static class MyJsonClassExtensions

    {

        public static int Depth(this MyJsonClass value) => value == null ? 0 : 1 + (value.x?.Depth()).GetValueOrDefault(0);

    }

    class TestClass

    {

        public static void Test()

        {

            var myClass = new MyJsonClass

            {

                x = new MyJsonClass

                {

                    x = new MyJsonClass { }

                },

            };

            var json = JsonConvert.SerializeObject(myClass, Formatting.Indented);

            Console.WriteLine(json);

            var root2 = JsonConvert.DeserializeObject<MyJsonClass>(json);

            root2.Dump();

            Assert.AreEqual(myClass.Depth(), root2.Depth());

        }   

    }

​

    public class Program

    {

        public static void Main()

        {

            Console.WriteLine("Environment version: {0} ({1})", System.Runtime.InteropServices.RuntimeInformation.FrameworkDescription , GetNetCoreVersion());

            Console.WriteLine("{0} version: {1}", typeof(JsonSerializer).Assembly.GetName().Name,  typeof(JsonSerializer).Assembly.FullName);

            Console.WriteLine();

​

            try

            {

                TestClass.Test();

            }

            catch (Exception ex)

            {

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

                Console.WriteLine(ex);

                throw;

            }

        }

        public static string GetNetCoreVersion()

        {

            //https://techblog.dorogin.com/how-to-detect-net-core-version-in-runtime-ecd65ad695be

            //

            var assembly = typeof(System.Runtime.GCSettings).GetTypeInfo().Assembly;

            var assemblyPath = assembly.Location.Split(new[] { '/', '\\' }, StringSplitOptions.RemoveEmptyEntries);

            int netCoreAppIndex = Array.IndexOf(assemblyPath, "Microsoft.NETCore.App");

            if (netCoreAppIndex > 0 && netCoreAppIndex < assemblyPath.Length - 2)

                return assemblyPath[netCoreAppIndex + 1];

            return null;

        }

    }

​