326 lines
12 KiB
C#
326 lines
12 KiB
C#
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#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;
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using System.Collections.Generic;
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using System.Reflection;
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using System.Runtime.Serialization;
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using LC.Newtonsoft.Json.Linq;
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using LC.Newtonsoft.Json.Utilities;
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namespace LC.Newtonsoft.Json.Serialization
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{
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internal enum JsonContractType
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{
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None = 0,
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Object = 1,
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Array = 2,
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Primitive = 3,
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String = 4,
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Dictionary = 5,
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Dynamic = 6,
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Serializable = 7,
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Linq = 8
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}
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/// <summary>
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/// Handles <see cref="JsonSerializer"/> serialization callback events.
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/// </summary>
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/// <param name="o">The object that raised the callback event.</param>
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/// <param name="context">The streaming context.</param>
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public delegate void SerializationCallback(object o, StreamingContext context);
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/// <summary>
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/// Handles <see cref="JsonSerializer"/> serialization error callback events.
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/// </summary>
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/// <param name="o">The object that raised the callback event.</param>
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/// <param name="context">The streaming context.</param>
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/// <param name="errorContext">The error context.</param>
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public delegate void SerializationErrorCallback(object o, StreamingContext context, ErrorContext errorContext);
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/// <summary>
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/// Sets extension data for an object during deserialization.
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/// </summary>
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/// <param name="o">The object to set extension data on.</param>
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/// <param name="key">The extension data key.</param>
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/// <param name="value">The extension data value.</param>
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public delegate void ExtensionDataSetter(object o, string key, object? value);
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/// <summary>
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/// Gets extension data for an object during serialization.
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/// </summary>
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/// <param name="o">The object to set extension data on.</param>
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public delegate IEnumerable<KeyValuePair<object, object>>? ExtensionDataGetter(object o);
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/// <summary>
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/// Contract details for a <see cref="System.Type"/> used by the <see cref="JsonSerializer"/>.
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/// </summary>
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public abstract class JsonContract
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{
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internal bool IsNullable;
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internal bool IsConvertable;
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internal bool IsEnum;
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internal Type NonNullableUnderlyingType;
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internal ReadType InternalReadType;
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internal JsonContractType ContractType;
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internal bool IsReadOnlyOrFixedSize;
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internal bool IsSealed;
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internal bool IsInstantiable;
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private List<SerializationCallback>? _onDeserializedCallbacks;
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private List<SerializationCallback>? _onDeserializingCallbacks;
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private List<SerializationCallback>? _onSerializedCallbacks;
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private List<SerializationCallback>? _onSerializingCallbacks;
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private List<SerializationErrorCallback>? _onErrorCallbacks;
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private Type _createdType;
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/// <summary>
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/// Gets the underlying type for the contract.
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/// </summary>
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/// <value>The underlying type for the contract.</value>
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public Type UnderlyingType { get; }
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/// <summary>
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/// Gets or sets the type created during deserialization.
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/// </summary>
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/// <value>The type created during deserialization.</value>
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public Type CreatedType
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{
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get => _createdType;
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set
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{
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ValidationUtils.ArgumentNotNull(value, nameof(value));
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_createdType = value;
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IsSealed = _createdType.IsSealed();
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IsInstantiable = !(_createdType.IsInterface() || _createdType.IsAbstract());
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}
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}
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/// <summary>
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/// Gets or sets whether this type contract is serialized as a reference.
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/// </summary>
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/// <value>Whether this type contract is serialized as a reference.</value>
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public bool? IsReference { get; set; }
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/// <summary>
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/// Gets or sets the default <see cref="JsonConverter" /> for this contract.
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/// </summary>
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/// <value>The converter.</value>
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public JsonConverter? Converter { get; set; }
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/// <summary>
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/// Gets the internally resolved <see cref="JsonConverter"/> for the contract's type.
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/// This converter is used as a fallback converter when no other converter is resolved.
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/// Setting <see cref="Converter"/> will always override this converter.
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/// </summary>
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public JsonConverter? InternalConverter { get; internal set; }
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/// <summary>
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/// Gets or sets all methods called immediately after deserialization of the object.
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/// </summary>
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/// <value>The methods called immediately after deserialization of the object.</value>
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public IList<SerializationCallback> OnDeserializedCallbacks
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{
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get
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{
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if (_onDeserializedCallbacks == null)
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{
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_onDeserializedCallbacks = new List<SerializationCallback>();
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}
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return _onDeserializedCallbacks;
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}
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}
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/// <summary>
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/// Gets or sets all methods called during deserialization of the object.
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/// </summary>
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/// <value>The methods called during deserialization of the object.</value>
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public IList<SerializationCallback> OnDeserializingCallbacks
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{
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get
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{
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if (_onDeserializingCallbacks == null)
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{
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_onDeserializingCallbacks = new List<SerializationCallback>();
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}
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return _onDeserializingCallbacks;
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}
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}
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/// <summary>
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/// Gets or sets all methods called after serialization of the object graph.
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/// </summary>
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/// <value>The methods called after serialization of the object graph.</value>
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public IList<SerializationCallback> OnSerializedCallbacks
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{
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get
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{
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if (_onSerializedCallbacks == null)
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{
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_onSerializedCallbacks = new List<SerializationCallback>();
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}
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return _onSerializedCallbacks;
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}
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}
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/// <summary>
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/// Gets or sets all methods called before serialization of the object.
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/// </summary>
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/// <value>The methods called before serialization of the object.</value>
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public IList<SerializationCallback> OnSerializingCallbacks
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{
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get
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{
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if (_onSerializingCallbacks == null)
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{
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_onSerializingCallbacks = new List<SerializationCallback>();
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}
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return _onSerializingCallbacks;
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}
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}
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/// <summary>
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/// Gets or sets all method called when an error is thrown during the serialization of the object.
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/// </summary>
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/// <value>The methods called when an error is thrown during the serialization of the object.</value>
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public IList<SerializationErrorCallback> OnErrorCallbacks
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{
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get
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{
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if (_onErrorCallbacks == null)
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{
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_onErrorCallbacks = new List<SerializationErrorCallback>();
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}
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return _onErrorCallbacks;
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}
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}
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/// <summary>
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/// Gets or sets the default creator method used to create the object.
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/// </summary>
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/// <value>The default creator method used to create the object.</value>
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public Func<object>? DefaultCreator { get; set; }
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/// <summary>
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/// Gets or sets a value indicating whether the default creator is non-public.
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/// </summary>
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/// <value><c>true</c> if the default object creator is non-public; otherwise, <c>false</c>.</value>
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public bool DefaultCreatorNonPublic { get; set; }
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internal JsonContract(Type underlyingType)
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{
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ValidationUtils.ArgumentNotNull(underlyingType, nameof(underlyingType));
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UnderlyingType = underlyingType;
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// resolve ByRef types
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// typically comes from in and ref parameters on methods/ctors
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underlyingType = ReflectionUtils.EnsureNotByRefType(underlyingType);
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IsNullable = ReflectionUtils.IsNullable(underlyingType);
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NonNullableUnderlyingType = (IsNullable && ReflectionUtils.IsNullableType(underlyingType)) ? Nullable.GetUnderlyingType(underlyingType) : underlyingType;
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_createdType = CreatedType = NonNullableUnderlyingType;
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IsConvertable = ConvertUtils.IsConvertible(NonNullableUnderlyingType);
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IsEnum = NonNullableUnderlyingType.IsEnum();
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InternalReadType = ReadType.Read;
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}
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internal void InvokeOnSerializing(object o, StreamingContext context)
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{
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if (_onSerializingCallbacks != null)
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{
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foreach (SerializationCallback callback in _onSerializingCallbacks)
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{
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callback(o, context);
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}
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}
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}
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internal void InvokeOnSerialized(object o, StreamingContext context)
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{
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if (_onSerializedCallbacks != null)
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{
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foreach (SerializationCallback callback in _onSerializedCallbacks)
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{
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callback(o, context);
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}
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}
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}
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internal void InvokeOnDeserializing(object o, StreamingContext context)
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{
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if (_onDeserializingCallbacks != null)
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{
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foreach (SerializationCallback callback in _onDeserializingCallbacks)
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{
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callback(o, context);
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}
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}
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}
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internal void InvokeOnDeserialized(object o, StreamingContext context)
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{
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if (_onDeserializedCallbacks != null)
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{
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foreach (SerializationCallback callback in _onDeserializedCallbacks)
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{
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callback(o, context);
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}
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}
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}
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internal void InvokeOnError(object o, StreamingContext context, ErrorContext errorContext)
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{
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if (_onErrorCallbacks != null)
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{
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foreach (SerializationErrorCallback callback in _onErrorCallbacks)
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{
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callback(o, context, errorContext);
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}
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}
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}
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internal static SerializationCallback CreateSerializationCallback(MethodInfo callbackMethodInfo)
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{
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return (o, context) => callbackMethodInfo.Invoke(o, new object[] { context });
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}
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internal static SerializationErrorCallback CreateSerializationErrorCallback(MethodInfo callbackMethodInfo)
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{
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return (o, context, econtext) => callbackMethodInfo.Invoke(o, new object[] { context, econtext });
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}
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}
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}
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