Added Converters/Formatters for Serialization of Json/MessagePack

AMWD.Common/Converters/ByteArrayHexConverter.cs

@@ -0,0 +1,70 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Newtonsoft.Json
+{
+	/// <summary>
+	/// Converts a byte array from and to a hex string.
+	/// </summary>
+	[System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
+	public class ByteArrayHexConverter : JsonConverter
+	{
+		/// <summary>
+		/// List of known types to use this converver.
+		/// </summary>
+		public static readonly Type[] KnownTypes = new[]
+		{
+			typeof(byte[]),
+			typeof(List<byte>),
+			typeof(IEnumerable<byte>)
+		};
+
+		/// <inheritdoc/>
+		public override bool CanConvert(Type objectType)
+		{
+			return KnownTypes.Contains(objectType);
+		}
+
+		/// <inheritdoc/>
+		public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+		{
+			if (reader.Value == null)
+				return null;
+
+			string hex = (string)reader.Value;
+			var byteEnum = hex.HexToBytes();
+
+			if (typeof(byte[]) == objectType)
+				return byteEnum.ToArray();
+
+			if (typeof(List<byte>) == objectType)
+				return byteEnum.ToList();
+
+			return byteEnum;
+		}
+
+		/// <inheritdoc/>
+		public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+		{
+			string hex = null;
+
+			if (value == null)
+			{
+				writer.WriteValue(hex);
+				return;
+			}
+
+			if (value is byte[] byteArray)
+				hex = byteArray.BytesToHex();
+
+			if (value is List<byte> byteList)
+				hex = byteList.BytesToHex();
+
+			if (value is IEnumerable<byte> byteEnum)
+				hex = byteEnum.BytesToHex();
+
+			writer.WriteValue(hex);
+		}
+	}
+}