858 lines
31 KiB
C#
858 lines
31 KiB
C#
#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;
|
|
#if HAVE_INOTIFY_COLLECTION_CHANGED
|
|
using System.Collections.ObjectModel;
|
|
using System.Collections.Specialized;
|
|
#endif
|
|
using System.ComponentModel;
|
|
#if HAVE_DYNAMIC
|
|
using System.Dynamic;
|
|
using System.Linq.Expressions;
|
|
#endif
|
|
using System.IO;
|
|
using LC.Newtonsoft.Json.Utilities;
|
|
using System.Globalization;
|
|
using System.Runtime.CompilerServices;
|
|
using System.Diagnostics.CodeAnalysis;
|
|
#if !HAVE_LINQ
|
|
using LC.Newtonsoft.Json.Utilities.LinqBridge;
|
|
#else
|
|
using System.Linq;
|
|
#endif
|
|
|
|
namespace LC.Newtonsoft.Json.Linq
|
|
{
|
|
/// <summary>
|
|
/// Represents a JSON object.
|
|
/// </summary>
|
|
/// <example>
|
|
/// <code lang="cs" source="..\Src\Newtonsoft.Json.Tests\Documentation\LinqToJsonTests.cs" region="LinqToJsonCreateParse" title="Parsing a JSON Object from Text" />
|
|
/// </example>
|
|
public partial class JObject : JContainer, IDictionary<string, JToken?>, INotifyPropertyChanged
|
|
#if HAVE_COMPONENT_MODEL
|
|
, ICustomTypeDescriptor
|
|
#endif
|
|
#if HAVE_INOTIFY_PROPERTY_CHANGING
|
|
, INotifyPropertyChanging
|
|
#endif
|
|
{
|
|
private readonly JPropertyKeyedCollection _properties = new JPropertyKeyedCollection();
|
|
|
|
/// <summary>
|
|
/// Gets the container's children tokens.
|
|
/// </summary>
|
|
/// <value>The container's children tokens.</value>
|
|
protected override IList<JToken> ChildrenTokens => _properties;
|
|
|
|
/// <summary>
|
|
/// Occurs when a property value changes.
|
|
/// </summary>
|
|
public event PropertyChangedEventHandler? PropertyChanged;
|
|
|
|
#if HAVE_INOTIFY_PROPERTY_CHANGING
|
|
/// <summary>
|
|
/// Occurs when a property value is changing.
|
|
/// </summary>
|
|
public event PropertyChangingEventHandler? PropertyChanging;
|
|
#endif
|
|
|
|
/// <summary>
|
|
/// Initializes a new instance of the <see cref="JObject"/> class.
|
|
/// </summary>
|
|
public JObject()
|
|
{
|
|
}
|
|
|
|
/// <summary>
|
|
/// Initializes a new instance of the <see cref="JObject"/> class from another <see cref="JObject"/> object.
|
|
/// </summary>
|
|
/// <param name="other">A <see cref="JObject"/> object to copy from.</param>
|
|
public JObject(JObject other)
|
|
: base(other)
|
|
{
|
|
}
|
|
|
|
/// <summary>
|
|
/// Initializes a new instance of the <see cref="JObject"/> class with the specified content.
|
|
/// </summary>
|
|
/// <param name="content">The contents of the object.</param>
|
|
public JObject(params object[] content)
|
|
: this((object)content)
|
|
{
|
|
}
|
|
|
|
/// <summary>
|
|
/// Initializes a new instance of the <see cref="JObject"/> class with the specified content.
|
|
/// </summary>
|
|
/// <param name="content">The contents of the object.</param>
|
|
public JObject(object content)
|
|
{
|
|
Add(content);
|
|
}
|
|
|
|
internal override bool DeepEquals(JToken node)
|
|
{
|
|
if (!(node is JObject t))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return _properties.Compare(t._properties);
|
|
}
|
|
|
|
internal override int IndexOfItem(JToken? item)
|
|
{
|
|
if (item == null)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
return _properties.IndexOfReference(item);
|
|
}
|
|
|
|
internal override void InsertItem(int index, JToken? item, bool skipParentCheck)
|
|
{
|
|
// don't add comments to JObject, no name to reference comment by
|
|
if (item != null && item.Type == JTokenType.Comment)
|
|
{
|
|
return;
|
|
}
|
|
|
|
base.InsertItem(index, item, skipParentCheck);
|
|
}
|
|
|
|
internal override void ValidateToken(JToken o, JToken? existing)
|
|
{
|
|
ValidationUtils.ArgumentNotNull(o, nameof(o));
|
|
|
|
if (o.Type != JTokenType.Property)
|
|
{
|
|
throw new ArgumentException("Can not add {0} to {1}.".FormatWith(CultureInfo.InvariantCulture, o.GetType(), GetType()));
|
|
}
|
|
|
|
JProperty newProperty = (JProperty)o;
|
|
|
|
if (existing != null)
|
|
{
|
|
JProperty existingProperty = (JProperty)existing;
|
|
|
|
if (newProperty.Name == existingProperty.Name)
|
|
{
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (_properties.TryGetValue(newProperty.Name, out existing))
|
|
{
|
|
throw new ArgumentException("Can not add property {0} to {1}. Property with the same name already exists on object.".FormatWith(CultureInfo.InvariantCulture, newProperty.Name, GetType()));
|
|
}
|
|
}
|
|
|
|
internal override void MergeItem(object content, JsonMergeSettings? settings)
|
|
{
|
|
if (!(content is JObject o))
|
|
{
|
|
return;
|
|
}
|
|
|
|
foreach (KeyValuePair<string, JToken?> contentItem in o)
|
|
{
|
|
JProperty? existingProperty = Property(contentItem.Key, settings?.PropertyNameComparison ?? StringComparison.Ordinal);
|
|
|
|
if (existingProperty == null)
|
|
{
|
|
Add(contentItem.Key, contentItem.Value);
|
|
}
|
|
else if (contentItem.Value != null)
|
|
{
|
|
if (!(existingProperty.Value is JContainer existingContainer) || existingContainer.Type != contentItem.Value.Type)
|
|
{
|
|
if (!IsNull(contentItem.Value) || settings?.MergeNullValueHandling == MergeNullValueHandling.Merge)
|
|
{
|
|
existingProperty.Value = contentItem.Value;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
existingContainer.Merge(contentItem.Value, settings);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
private static bool IsNull(JToken token)
|
|
{
|
|
if (token.Type == JTokenType.Null)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
if (token is JValue v && v.Value == null)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
internal void InternalPropertyChanged(JProperty childProperty)
|
|
{
|
|
OnPropertyChanged(childProperty.Name);
|
|
#if HAVE_COMPONENT_MODEL
|
|
if (_listChanged != null)
|
|
{
|
|
OnListChanged(new ListChangedEventArgs(ListChangedType.ItemChanged, IndexOfItem(childProperty)));
|
|
}
|
|
#endif
|
|
#if HAVE_INOTIFY_COLLECTION_CHANGED
|
|
if (_collectionChanged != null)
|
|
{
|
|
OnCollectionChanged(new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Replace, childProperty, childProperty, IndexOfItem(childProperty)));
|
|
}
|
|
#endif
|
|
}
|
|
|
|
internal void InternalPropertyChanging(JProperty childProperty)
|
|
{
|
|
#if HAVE_INOTIFY_PROPERTY_CHANGING
|
|
OnPropertyChanging(childProperty.Name);
|
|
#endif
|
|
}
|
|
|
|
internal override JToken CloneToken()
|
|
{
|
|
return new JObject(this);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the node type for this <see cref="JToken"/>.
|
|
/// </summary>
|
|
/// <value>The type.</value>
|
|
public override JTokenType Type => JTokenType.Object;
|
|
|
|
/// <summary>
|
|
/// Gets an <see cref="IEnumerable{T}"/> of <see cref="JProperty"/> of this object's properties.
|
|
/// </summary>
|
|
/// <returns>An <see cref="IEnumerable{T}"/> of <see cref="JProperty"/> of this object's properties.</returns>
|
|
public IEnumerable<JProperty> Properties()
|
|
{
|
|
return _properties.Cast<JProperty>();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets a <see cref="JProperty"/> with the specified name.
|
|
/// </summary>
|
|
/// <param name="name">The property name.</param>
|
|
/// <returns>A <see cref="JProperty"/> with the specified name or <c>null</c>.</returns>
|
|
public JProperty? Property(string name)
|
|
{
|
|
return Property(name, StringComparison.Ordinal);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the <see cref="JProperty"/> with the specified name.
|
|
/// The exact name will be searched for first and if no matching property is found then
|
|
/// the <see cref="StringComparison"/> will be used to match a property.
|
|
/// </summary>
|
|
/// <param name="name">The property name.</param>
|
|
/// <param name="comparison">One of the enumeration values that specifies how the strings will be compared.</param>
|
|
/// <returns>A <see cref="JProperty"/> matched with the specified name or <c>null</c>.</returns>
|
|
public JProperty? Property(string name, StringComparison comparison)
|
|
{
|
|
if (name == null)
|
|
{
|
|
return null;
|
|
}
|
|
|
|
if (_properties.TryGetValue(name, out JToken? property))
|
|
{
|
|
return (JProperty)property;
|
|
}
|
|
|
|
// test above already uses this comparison so no need to repeat
|
|
if (comparison != StringComparison.Ordinal)
|
|
{
|
|
for (int i = 0; i < _properties.Count; i++)
|
|
{
|
|
JProperty p = (JProperty)_properties[i];
|
|
if (string.Equals(p.Name, name, comparison))
|
|
{
|
|
return p;
|
|
}
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets a <see cref="JEnumerable{T}"/> of <see cref="JToken"/> of this object's property values.
|
|
/// </summary>
|
|
/// <returns>A <see cref="JEnumerable{T}"/> of <see cref="JToken"/> of this object's property values.</returns>
|
|
public JEnumerable<JToken> PropertyValues()
|
|
{
|
|
return new JEnumerable<JToken>(Properties().Select(p => p.Value));
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the <see cref="JToken"/> with the specified key.
|
|
/// </summary>
|
|
/// <value>The <see cref="JToken"/> with the specified key.</value>
|
|
public override JToken? this[object key]
|
|
{
|
|
get
|
|
{
|
|
ValidationUtils.ArgumentNotNull(key, nameof(key));
|
|
|
|
if (!(key is string propertyName))
|
|
{
|
|
throw new ArgumentException("Accessed JObject values with invalid key value: {0}. Object property name expected.".FormatWith(CultureInfo.InvariantCulture, MiscellaneousUtils.ToString(key)));
|
|
}
|
|
|
|
return this[propertyName];
|
|
}
|
|
set
|
|
{
|
|
ValidationUtils.ArgumentNotNull(key, nameof(key));
|
|
|
|
if (!(key is string propertyName))
|
|
{
|
|
throw new ArgumentException("Set JObject values with invalid key value: {0}. Object property name expected.".FormatWith(CultureInfo.InvariantCulture, MiscellaneousUtils.ToString(key)));
|
|
}
|
|
|
|
this[propertyName] = value;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets or sets the <see cref="JToken"/> with the specified property name.
|
|
/// </summary>
|
|
/// <value></value>
|
|
public JToken? this[string propertyName]
|
|
{
|
|
get
|
|
{
|
|
ValidationUtils.ArgumentNotNull(propertyName, nameof(propertyName));
|
|
|
|
JProperty? property = Property(propertyName, StringComparison.Ordinal);
|
|
|
|
return property?.Value;
|
|
}
|
|
set
|
|
{
|
|
JProperty? property = Property(propertyName, StringComparison.Ordinal);
|
|
if (property != null)
|
|
{
|
|
property.Value = value!;
|
|
}
|
|
else
|
|
{
|
|
#if HAVE_INOTIFY_PROPERTY_CHANGING
|
|
OnPropertyChanging(propertyName);
|
|
#endif
|
|
Add(propertyName, value);
|
|
OnPropertyChanged(propertyName);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Loads a <see cref="JObject"/> from a <see cref="JsonReader"/>.
|
|
/// </summary>
|
|
/// <param name="reader">A <see cref="JsonReader"/> that will be read for the content of the <see cref="JObject"/>.</param>
|
|
/// <returns>A <see cref="JObject"/> that contains the JSON that was read from the specified <see cref="JsonReader"/>.</returns>
|
|
/// <exception cref="JsonReaderException">
|
|
/// <paramref name="reader"/> is not valid JSON.
|
|
/// </exception>
|
|
public new static JObject Load(JsonReader reader)
|
|
{
|
|
return Load(reader, null);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Loads a <see cref="JObject"/> from a <see cref="JsonReader"/>.
|
|
/// </summary>
|
|
/// <param name="reader">A <see cref="JsonReader"/> that will be read for the content of the <see cref="JObject"/>.</param>
|
|
/// <param name="settings">The <see cref="JsonLoadSettings"/> used to load the JSON.
|
|
/// If this is <c>null</c>, default load settings will be used.</param>
|
|
/// <returns>A <see cref="JObject"/> that contains the JSON that was read from the specified <see cref="JsonReader"/>.</returns>
|
|
/// <exception cref="JsonReaderException">
|
|
/// <paramref name="reader"/> is not valid JSON.
|
|
/// </exception>
|
|
public new static JObject Load(JsonReader reader, JsonLoadSettings? settings)
|
|
{
|
|
ValidationUtils.ArgumentNotNull(reader, nameof(reader));
|
|
|
|
if (reader.TokenType == JsonToken.None)
|
|
{
|
|
if (!reader.Read())
|
|
{
|
|
throw JsonReaderException.Create(reader, "Error reading JObject from JsonReader.");
|
|
}
|
|
}
|
|
|
|
reader.MoveToContent();
|
|
|
|
if (reader.TokenType != JsonToken.StartObject)
|
|
{
|
|
throw JsonReaderException.Create(reader, "Error reading JObject from JsonReader. Current JsonReader item is not an object: {0}".FormatWith(CultureInfo.InvariantCulture, reader.TokenType));
|
|
}
|
|
|
|
JObject o = new JObject();
|
|
o.SetLineInfo(reader as IJsonLineInfo, settings);
|
|
|
|
o.ReadTokenFrom(reader, settings);
|
|
|
|
return o;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Load a <see cref="JObject"/> from a string that contains JSON.
|
|
/// </summary>
|
|
/// <param name="json">A <see cref="String"/> that contains JSON.</param>
|
|
/// <returns>A <see cref="JObject"/> populated from the string that contains JSON.</returns>
|
|
/// <exception cref="JsonReaderException">
|
|
/// <paramref name="json"/> is not valid JSON.
|
|
/// </exception>
|
|
/// <example>
|
|
/// <code lang="cs" source="..\Src\Newtonsoft.Json.Tests\Documentation\LinqToJsonTests.cs" region="LinqToJsonCreateParse" title="Parsing a JSON Object from Text" />
|
|
/// </example>
|
|
public new static JObject Parse(string json)
|
|
{
|
|
return Parse(json, null);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Load a <see cref="JObject"/> from a string that contains JSON.
|
|
/// </summary>
|
|
/// <param name="json">A <see cref="String"/> that contains JSON.</param>
|
|
/// <param name="settings">The <see cref="JsonLoadSettings"/> used to load the JSON.
|
|
/// If this is <c>null</c>, default load settings will be used.</param>
|
|
/// <returns>A <see cref="JObject"/> populated from the string that contains JSON.</returns>
|
|
/// <exception cref="JsonReaderException">
|
|
/// <paramref name="json"/> is not valid JSON.
|
|
/// </exception>
|
|
/// <example>
|
|
/// <code lang="cs" source="..\Src\Newtonsoft.Json.Tests\Documentation\LinqToJsonTests.cs" region="LinqToJsonCreateParse" title="Parsing a JSON Object from Text" />
|
|
/// </example>
|
|
public new static JObject Parse(string json, JsonLoadSettings? settings)
|
|
{
|
|
using (JsonReader reader = new JsonTextReader(new StringReader(json)))
|
|
{
|
|
JObject o = Load(reader, settings);
|
|
|
|
while (reader.Read())
|
|
{
|
|
// Any content encountered here other than a comment will throw in the reader.
|
|
}
|
|
|
|
return o;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates a <see cref="JObject"/> from an object.
|
|
/// </summary>
|
|
/// <param name="o">The object that will be used to create <see cref="JObject"/>.</param>
|
|
/// <returns>A <see cref="JObject"/> with the values of the specified object.</returns>
|
|
public new static JObject FromObject(object o)
|
|
{
|
|
return FromObject(o, JsonSerializer.CreateDefault());
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates a <see cref="JObject"/> from an object.
|
|
/// </summary>
|
|
/// <param name="o">The object that will be used to create <see cref="JObject"/>.</param>
|
|
/// <param name="jsonSerializer">The <see cref="JsonSerializer"/> that will be used to read the object.</param>
|
|
/// <returns>A <see cref="JObject"/> with the values of the specified object.</returns>
|
|
public new static JObject FromObject(object o, JsonSerializer jsonSerializer)
|
|
{
|
|
JToken token = FromObjectInternal(o, jsonSerializer);
|
|
|
|
if (token.Type != JTokenType.Object)
|
|
{
|
|
throw new ArgumentException("Object serialized to {0}. JObject instance expected.".FormatWith(CultureInfo.InvariantCulture, token.Type));
|
|
}
|
|
|
|
return (JObject)token;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Writes this token to a <see cref="JsonWriter"/>.
|
|
/// </summary>
|
|
/// <param name="writer">A <see cref="JsonWriter"/> into which this method will write.</param>
|
|
/// <param name="converters">A collection of <see cref="JsonConverter"/> which will be used when writing the token.</param>
|
|
public override void WriteTo(JsonWriter writer, params JsonConverter[] converters)
|
|
{
|
|
writer.WriteStartObject();
|
|
|
|
for (int i = 0; i < _properties.Count; i++)
|
|
{
|
|
_properties[i].WriteTo(writer, converters);
|
|
}
|
|
|
|
writer.WriteEndObject();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the <see cref="Newtonsoft.Json.Linq.JToken"/> with the specified property name.
|
|
/// </summary>
|
|
/// <param name="propertyName">Name of the property.</param>
|
|
/// <returns>The <see cref="Newtonsoft.Json.Linq.JToken"/> with the specified property name.</returns>
|
|
public JToken? GetValue(string? propertyName)
|
|
{
|
|
return GetValue(propertyName, StringComparison.Ordinal);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets the <see cref="Newtonsoft.Json.Linq.JToken"/> with the specified property name.
|
|
/// The exact property name will be searched for first and if no matching property is found then
|
|
/// the <see cref="StringComparison"/> will be used to match a property.
|
|
/// </summary>
|
|
/// <param name="propertyName">Name of the property.</param>
|
|
/// <param name="comparison">One of the enumeration values that specifies how the strings will be compared.</param>
|
|
/// <returns>The <see cref="Newtonsoft.Json.Linq.JToken"/> with the specified property name.</returns>
|
|
public JToken? GetValue(string? propertyName, StringComparison comparison)
|
|
{
|
|
if (propertyName == null)
|
|
{
|
|
return null;
|
|
}
|
|
|
|
// attempt to get value via dictionary first for performance
|
|
var property = Property(propertyName, comparison);
|
|
|
|
return property?.Value;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Tries to get the <see cref="Newtonsoft.Json.Linq.JToken"/> with the specified property name.
|
|
/// The exact property name will be searched for first and if no matching property is found then
|
|
/// the <see cref="StringComparison"/> will be used to match a property.
|
|
/// </summary>
|
|
/// <param name="propertyName">Name of the property.</param>
|
|
/// <param name="value">The value.</param>
|
|
/// <param name="comparison">One of the enumeration values that specifies how the strings will be compared.</param>
|
|
/// <returns><c>true</c> if a value was successfully retrieved; otherwise, <c>false</c>.</returns>
|
|
public bool TryGetValue(string propertyName, StringComparison comparison, [NotNullWhen(true)]out JToken? value)
|
|
{
|
|
value = GetValue(propertyName, comparison);
|
|
return (value != null);
|
|
}
|
|
|
|
#region IDictionary<string,JToken> Members
|
|
/// <summary>
|
|
/// Adds the specified property name.
|
|
/// </summary>
|
|
/// <param name="propertyName">Name of the property.</param>
|
|
/// <param name="value">The value.</param>
|
|
public void Add(string propertyName, JToken? value)
|
|
{
|
|
Add(new JProperty(propertyName, value));
|
|
}
|
|
|
|
/// <summary>
|
|
/// Determines whether the JSON object has the specified property name.
|
|
/// </summary>
|
|
/// <param name="propertyName">Name of the property.</param>
|
|
/// <returns><c>true</c> if the JSON object has the specified property name; otherwise, <c>false</c>.</returns>
|
|
public bool ContainsKey(string propertyName)
|
|
{
|
|
ValidationUtils.ArgumentNotNull(propertyName, nameof(propertyName));
|
|
|
|
return _properties.Contains(propertyName);
|
|
}
|
|
|
|
ICollection<string> IDictionary<string, JToken?>.Keys => _properties.Keys;
|
|
|
|
/// <summary>
|
|
/// Removes the property with the specified name.
|
|
/// </summary>
|
|
/// <param name="propertyName">Name of the property.</param>
|
|
/// <returns><c>true</c> if item was successfully removed; otherwise, <c>false</c>.</returns>
|
|
public bool Remove(string propertyName)
|
|
{
|
|
JProperty? property = Property(propertyName, StringComparison.Ordinal);
|
|
if (property == null)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
property.Remove();
|
|
return true;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Tries to get the <see cref="Newtonsoft.Json.Linq.JToken"/> with the specified property name.
|
|
/// </summary>
|
|
/// <param name="propertyName">Name of the property.</param>
|
|
/// <param name="value">The value.</param>
|
|
/// <returns><c>true</c> if a value was successfully retrieved; otherwise, <c>false</c>.</returns>
|
|
public bool TryGetValue(string propertyName, [NotNullWhen(true)]out JToken? value)
|
|
{
|
|
JProperty? property = Property(propertyName, StringComparison.Ordinal);
|
|
if (property == null)
|
|
{
|
|
value = null;
|
|
return false;
|
|
}
|
|
|
|
value = property.Value;
|
|
return true;
|
|
}
|
|
|
|
ICollection<JToken?> IDictionary<string, JToken?>.Values => throw new NotImplementedException();
|
|
|
|
#endregion
|
|
|
|
#region ICollection<KeyValuePair<string,JToken>> Members
|
|
void ICollection<KeyValuePair<string, JToken?>>.Add(KeyValuePair<string, JToken?> item)
|
|
{
|
|
Add(new JProperty(item.Key, item.Value));
|
|
}
|
|
|
|
void ICollection<KeyValuePair<string, JToken?>>.Clear()
|
|
{
|
|
RemoveAll();
|
|
}
|
|
|
|
bool ICollection<KeyValuePair<string, JToken?>>.Contains(KeyValuePair<string, JToken?> item)
|
|
{
|
|
JProperty? property = Property(item.Key, StringComparison.Ordinal);
|
|
if (property == null)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return (property.Value == item.Value);
|
|
}
|
|
|
|
void ICollection<KeyValuePair<string, JToken?>>.CopyTo(KeyValuePair<string, JToken?>[] array, int arrayIndex)
|
|
{
|
|
if (array == null)
|
|
{
|
|
throw new ArgumentNullException(nameof(array));
|
|
}
|
|
if (arrayIndex < 0)
|
|
{
|
|
throw new ArgumentOutOfRangeException(nameof(arrayIndex), "arrayIndex is less than 0.");
|
|
}
|
|
if (arrayIndex >= array.Length && arrayIndex != 0)
|
|
{
|
|
throw new ArgumentException("arrayIndex is equal to or greater than the length of array.");
|
|
}
|
|
if (Count > array.Length - arrayIndex)
|
|
{
|
|
throw new ArgumentException("The number of elements in the source JObject is greater than the available space from arrayIndex to the end of the destination array.");
|
|
}
|
|
|
|
int index = 0;
|
|
foreach (JProperty property in _properties)
|
|
{
|
|
array[arrayIndex + index] = new KeyValuePair<string, JToken?>(property.Name, property.Value);
|
|
index++;
|
|
}
|
|
}
|
|
|
|
bool ICollection<KeyValuePair<string, JToken?>>.IsReadOnly => false;
|
|
|
|
bool ICollection<KeyValuePair<string, JToken?>>.Remove(KeyValuePair<string, JToken?> item)
|
|
{
|
|
if (!((ICollection<KeyValuePair<string, JToken?>>)this).Contains(item))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
((IDictionary<string, JToken>)this).Remove(item.Key);
|
|
return true;
|
|
}
|
|
#endregion
|
|
|
|
internal override int GetDeepHashCode()
|
|
{
|
|
return ContentsHashCode();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns an enumerator that can be used to iterate through the collection.
|
|
/// </summary>
|
|
/// <returns>
|
|
/// A <see cref="IEnumerator{T}"/> that can be used to iterate through the collection.
|
|
/// </returns>
|
|
public IEnumerator<KeyValuePair<string, JToken?>> GetEnumerator()
|
|
{
|
|
foreach (JProperty property in _properties)
|
|
{
|
|
yield return new KeyValuePair<string, JToken?>(property.Name, property.Value);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Raises the <see cref="PropertyChanged"/> event with the provided arguments.
|
|
/// </summary>
|
|
/// <param name="propertyName">Name of the property.</param>
|
|
protected virtual void OnPropertyChanged(string propertyName)
|
|
{
|
|
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
|
|
}
|
|
|
|
#if HAVE_INOTIFY_PROPERTY_CHANGING
|
|
/// <summary>
|
|
/// Raises the <see cref="PropertyChanging"/> event with the provided arguments.
|
|
/// </summary>
|
|
/// <param name="propertyName">Name of the property.</param>
|
|
protected virtual void OnPropertyChanging(string propertyName)
|
|
{
|
|
PropertyChanging?.Invoke(this, new PropertyChangingEventArgs(propertyName));
|
|
}
|
|
#endif
|
|
|
|
#if HAVE_COMPONENT_MODEL
|
|
// include custom type descriptor on JObject rather than use a provider because the properties are specific to a type
|
|
|
|
#region ICustomTypeDescriptor
|
|
PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties()
|
|
{
|
|
return ((ICustomTypeDescriptor)this).GetProperties(null);
|
|
}
|
|
|
|
PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties(Attribute[] attributes)
|
|
{
|
|
PropertyDescriptor[] propertiesArray = new PropertyDescriptor[Count];
|
|
int i = 0;
|
|
foreach (KeyValuePair<string, JToken?> propertyValue in this)
|
|
{
|
|
propertiesArray[i] = new JPropertyDescriptor(propertyValue.Key);
|
|
i++;
|
|
}
|
|
|
|
return new PropertyDescriptorCollection(propertiesArray);
|
|
}
|
|
|
|
AttributeCollection ICustomTypeDescriptor.GetAttributes()
|
|
{
|
|
return AttributeCollection.Empty;
|
|
}
|
|
|
|
string? ICustomTypeDescriptor.GetClassName()
|
|
{
|
|
return null;
|
|
}
|
|
|
|
string? ICustomTypeDescriptor.GetComponentName()
|
|
{
|
|
return null;
|
|
}
|
|
|
|
TypeConverter ICustomTypeDescriptor.GetConverter()
|
|
{
|
|
return new TypeConverter();
|
|
}
|
|
|
|
EventDescriptor? ICustomTypeDescriptor.GetDefaultEvent()
|
|
{
|
|
return null;
|
|
}
|
|
|
|
PropertyDescriptor? ICustomTypeDescriptor.GetDefaultProperty()
|
|
{
|
|
return null;
|
|
}
|
|
|
|
object? ICustomTypeDescriptor.GetEditor(Type editorBaseType)
|
|
{
|
|
return null;
|
|
}
|
|
|
|
EventDescriptorCollection ICustomTypeDescriptor.GetEvents(Attribute[] attributes)
|
|
{
|
|
return EventDescriptorCollection.Empty;
|
|
}
|
|
|
|
EventDescriptorCollection ICustomTypeDescriptor.GetEvents()
|
|
{
|
|
return EventDescriptorCollection.Empty;
|
|
}
|
|
|
|
object? ICustomTypeDescriptor.GetPropertyOwner(PropertyDescriptor pd)
|
|
{
|
|
if (pd is JPropertyDescriptor)
|
|
{
|
|
return this;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
#endregion
|
|
|
|
#endif
|
|
|
|
#if HAVE_DYNAMIC
|
|
/// <summary>
|
|
/// Returns the <see cref="DynamicMetaObject"/> responsible for binding operations performed on this object.
|
|
/// </summary>
|
|
/// <param name="parameter">The expression tree representation of the runtime value.</param>
|
|
/// <returns>
|
|
/// The <see cref="DynamicMetaObject"/> to bind this object.
|
|
/// </returns>
|
|
protected override DynamicMetaObject GetMetaObject(Expression parameter)
|
|
{
|
|
return new DynamicProxyMetaObject<JObject>(parameter, this, new JObjectDynamicProxy());
|
|
}
|
|
|
|
private class JObjectDynamicProxy : DynamicProxy<JObject>
|
|
{
|
|
public override bool TryGetMember(JObject instance, GetMemberBinder binder, out object? result)
|
|
{
|
|
// result can be null
|
|
result = instance[binder.Name];
|
|
return true;
|
|
}
|
|
|
|
public override bool TrySetMember(JObject instance, SetMemberBinder binder, object value)
|
|
{
|
|
// this can throw an error if value isn't a valid for a JValue
|
|
if (!(value is JToken v))
|
|
{
|
|
v = new JValue(value);
|
|
}
|
|
|
|
instance[binder.Name] = v;
|
|
return true;
|
|
}
|
|
|
|
public override IEnumerable<string> GetDynamicMemberNames(JObject instance)
|
|
{
|
|
return instance.Properties().Select(p => p.Name);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
}
|