chore: 初始化北汽福田MES采集程序

Common/00-1Json8.3/Json8.3/Converters/KeyValuePairConverter.cs

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+#region License
+// Copyright (c) 2007 James Newton-King
+//
+// Permission is hereby granted, free of charge, to any person
+// obtaining a copy of this software and associated documentation
+// files (the "Software"), to deal in the Software without
+// restriction, including without limitation the rights to use,
+// copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following
+// conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+// OTHER DEALINGS IN THE SOFTWARE.
+#endregion
+
+using System;
+using System.Collections.Generic;
+using Newtonsoft.Json.Serialization;
+using Newtonsoft.Json.Utilities;
+using System.Reflection;
+
+namespace Newtonsoft.Json.Converters
+{
+    /// <summary>
+    /// Converts a <see cref="KeyValuePair{TKey,TValue}"/> to and from JSON.
+    /// </summary>
+    public class KeyValuePairConverter : JsonConverter
+    {
+        private const string KeyName = "Key";
+        private const string ValueName = "Value";
+
+        private static readonly ThreadSafeStore<Type, ReflectionObject> ReflectionObjectPerType = new ThreadSafeStore<Type, ReflectionObject>(InitializeReflectionObject);
+
+        private static ReflectionObject InitializeReflectionObject(Type t)
+        {
+            IList<Type> genericArguments = t.GetGenericArguments();
+            Type keyType = genericArguments[0];
+            Type valueType = genericArguments[1];
+
+            return ReflectionObject.Create(t, t.GetConstructor(new[] { keyType, valueType }), KeyName, ValueName);
+        }
+
+        /// <summary>
+        /// Writes the JSON representation of the object.
+        /// </summary>
+        /// <param name="writer">The <see cref="JsonWriter"/> to write to.</param>
+        /// <param name="value">The value.</param>
+        /// <param name="serializer">The calling serializer.</param>
+        public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
+        {
+            ReflectionObject reflectionObject = ReflectionObjectPerType.Get(value.GetType());
+
+            DefaultContractResolver resolver = serializer.ContractResolver as DefaultContractResolver;
+
+            writer.WriteStartObject();
+            writer.WritePropertyName((resolver != null) ? resolver.GetResolvedPropertyName(KeyName) : KeyName);
+            serializer.Serialize(writer, reflectionObject.GetValue(value, KeyName), reflectionObject.GetType(KeyName));
+            writer.WritePropertyName((resolver != null) ? resolver.GetResolvedPropertyName(ValueName) : ValueName);
+            serializer.Serialize(writer, reflectionObject.GetValue(value, ValueName), reflectionObject.GetType(ValueName));
+            writer.WriteEndObject();
+        }
+
+        /// <summary>
+        /// Reads the JSON representation of the object.
+        /// </summary>
+        /// <param name="reader">The <see cref="JsonReader"/> to read from.</param>
+        /// <param name="objectType">Type of the object.</param>
+        /// <param name="existingValue">The existing value of object being read.</param>
+        /// <param name="serializer">The calling serializer.</param>
+        /// <returns>The object value.</returns>
+        public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
+        {
+            if (reader.TokenType == JsonToken.Null)
+            {
+                if (!ReflectionUtils.IsNullableType(objectType))
+                {
+                    throw JsonSerializationException.Create(reader, "Cannot convert null value to KeyValuePair.");
+                }
+
+                return null;
+            }
+
+            object key = null;
+            object value = null;
+
+            reader.ReadAndAssert();
+
+            Type t = ReflectionUtils.IsNullableType(objectType)
+                ? Nullable.GetUnderlyingType(objectType)
+                : objectType;
+
+            ReflectionObject reflectionObject = ReflectionObjectPerType.Get(t);
+
+            while (reader.TokenType == JsonToken.PropertyName)
+            {
+                string propertyName = reader.Value.ToString();
+                if (string.Equals(propertyName, KeyName, StringComparison.OrdinalIgnoreCase))
+                {
+                    reader.ReadAndAssert();
+                    key = serializer.Deserialize(reader, reflectionObject.GetType(KeyName));
+                }
+                else if (string.Equals(propertyName, ValueName, StringComparison.OrdinalIgnoreCase))
+                {
+                    reader.ReadAndAssert();
+                    value = serializer.Deserialize(reader, reflectionObject.GetType(ValueName));
+                }
+                else
+                {
+                    reader.Skip();
+                }
+
+                reader.ReadAndAssert();
+            }
+
+            return reflectionObject.Creator(key, value);
+        }
+
+        /// <summary>
+        /// Determines whether this instance can convert the specified object type.
+        /// </summary>
+        /// <param name="objectType">Type of the object.</param>
+        /// <returns>
+        /// 	<c>true</c> if this instance can convert the specified object type; otherwise, <c>false</c>.
+        /// </returns>
+        public override bool CanConvert(Type objectType)
+        {
+            Type t = (ReflectionUtils.IsNullableType(objectType))
+                ? Nullable.GetUnderlyingType(objectType)
+                : objectType;
+
+            if (t.IsValueType() && t.IsGenericType())
+            {
+                return (t.GetGenericTypeDefinition() == typeof(KeyValuePair<,>));
+            }
+
+            return false;
+        }
+    }
+}