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ServerBase/BusinessLog/Formatter/JsonText.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+
+
+using Newtonsoft.Json.Serialization;
+using Newtonsoft.Json;
+
+
+namespace ServerBase;
+
+public class JsonText : IFormatter
+{
+	private static readonly JsonSerializerSettings m_serialize_settings = new JsonSerializerSettings();
+	private static readonly ContractResolver m_resolver = new ContractResolver();
+
+	public JsonText()
+	{
+		m_serialize_settings.ContractResolver = m_resolver;
+		m_serialize_settings.Converters.Add(new Newtonsoft.Json.Converters.StringEnumConverter());
+	}
+
+	public override string toLogString(BusinessLog log)
+	{
+		return JsonConvert.SerializeObject(log, m_serialize_settings);
+	}
+
+
+	//=============================================================================================
+	// Json을 만들때 무시할 property를 등록한다.
+	//=============================================================================================
+	private class ContractResolver : Newtonsoft.Json.Serialization.DefaultContractResolver
+	{
+		private readonly Dictionary<Type, HashSet<string>> m_ignores;
+
+		public ContractResolver()
+		{
+			m_ignores = new Dictionary<Type, HashSet<string>>();
+		}
+
+		public void ignoreProperty(Type type, params string[] jsonPropertyNames)
+		{
+			if (false == m_ignores.ContainsKey(type))
+			{
+				m_ignores[type] = new HashSet<string>();
+			}
+
+			foreach (var prop in jsonPropertyNames)
+			{
+				m_ignores[type].Add(prop);
+			}
+		}
+
+		public bool isIgnored(Type type, string jsonPropertyName)
+		{
+			if (false == m_ignores.ContainsKey(type))
+			{
+				return false;
+			}
+			return m_ignores[type].Contains(jsonPropertyName);
+		}
+
+		protected override JsonProperty CreateProperty(MemberInfo member, MemberSerialization memberSerialization)
+		{
+            var property = base.CreateProperty(member, memberSerialization);
+
+			if (property.DeclaringType != null &&
+                    property.PropertyName != null &&
+                    isIgnored(property.DeclaringType, property.PropertyName))
+			{
+				property.ShouldSerialize = i => false;
+				property.Ignored = true;
+			}
+			return property;
+		}
+
+	}//ContractResolver
+
+}//JsonText