94 lines
3.8 KiB
C#
94 lines
3.8 KiB
C#
#region License
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// Copyright (c) 2007 James Newton-King
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the "Software"), to deal in the Software without
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// restriction, including without limitation the rights to use,
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// copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following
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// conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using Newtonsoft.Json.Utilities;
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namespace Newtonsoft.Json.Serialization
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{
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/// <summary>
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/// Resolves member mappings for a type, camel casing property names.
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/// </summary>
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public class CamelCasePropertyNamesContractResolver : DefaultContractResolver
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{
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private static readonly object TypeContractCacheLock = new object();
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private static readonly DefaultJsonNameTable NameTable = new DefaultJsonNameTable();
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private static Dictionary<StructMultiKey<Type, Type>, JsonContract> _contractCache;
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/// <summary>
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/// Initializes a new instance of the <see cref="CamelCasePropertyNamesContractResolver"/> class.
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/// </summary>
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public CamelCasePropertyNamesContractResolver()
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{
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NamingStrategy = new CamelCaseNamingStrategy
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{
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ProcessDictionaryKeys = true,
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OverrideSpecifiedNames = true
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};
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}
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/// <summary>
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/// Resolves the contract for a given type.
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/// </summary>
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/// <param name="type">The type to resolve a contract for.</param>
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/// <returns>The contract for a given type.</returns>
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public override JsonContract ResolveContract(Type type)
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{
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if (type == null)
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{
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throw new ArgumentNullException(nameof(type));
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}
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// for backwards compadibility the CamelCasePropertyNamesContractResolver shares contracts between instances
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StructMultiKey<Type, Type> key = new StructMultiKey<Type, Type>(GetType(), type);
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Dictionary<StructMultiKey<Type, Type>, JsonContract> cache = _contractCache;
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if (cache == null || !cache.TryGetValue(key, out JsonContract contract))
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{
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contract = CreateContract(type);
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// avoid the possibility of modifying the cache dictionary while another thread is accessing it
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lock (TypeContractCacheLock)
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{
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cache = _contractCache;
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Dictionary<StructMultiKey<Type, Type>, JsonContract> updatedCache = (cache != null)
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? new Dictionary<StructMultiKey<Type, Type>, JsonContract>(cache)
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: new Dictionary<StructMultiKey<Type, Type>, JsonContract>();
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updatedCache[key] = contract;
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_contractCache = updatedCache;
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}
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}
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return contract;
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}
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internal override DefaultJsonNameTable GetNameTable()
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{
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return NameTable;
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}
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}
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} |