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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 System.Text;
using System.Collections.ObjectModel;
using Newtonsoft.Json.Utilities;
using System.Globalization;
namespace Newtonsoft.Json.Serialization
{
/// <summary>
/// A collection of <see cref="JsonProperty"/> objects.
/// </summary>
public class JsonPropertyCollection : KeyedCollection<string, JsonProperty>
{
private readonly Type _type;
/// <summary>
/// Initializes a new instance of the <see cref="JsonPropertyCollection"/> class.
/// </summary>
/// <param name="type">The type.</param>
public JsonPropertyCollection(Type type) : base(StringComparer.Ordinal)
{
ValidationUtils.ArgumentNotNull(type, "type");
_type = type;
}
/// <summary>
/// When implemented in a derived class, extracts the key from the specified element.
/// </summary>
/// <param name="item">The element from which to extract the key.</param>
/// <returns>The key for the specified element.</returns>
protected override string GetKeyForItem(JsonProperty item)
{
return item.PropertyName;
}
/// <summary>
/// Adds a <see cref="JsonProperty"/> object.
/// </summary>
/// <param name="property">The property to add to the collection.</param>
public void AddProperty(JsonProperty property)
{
if (Contains(property.PropertyName))
{
// don't overwrite existing property with ignored property
if (property.Ignored)
return;
JsonProperty existingProperty = this[property.PropertyName];
if (existingProperty.Ignored)
{
// remove ignored property so it can be replaced in collection
Remove(existingProperty);
return;
}
if (property.DeclaringType != null && existingProperty.DeclaringType != null)
{
if (property.DeclaringType.IsSubclassOf(existingProperty.DeclaringType))
{
// current property is on a derived class and hides the existing
Remove(existingProperty);
return;
}
if (existingProperty.DeclaringType.IsSubclassOf(property.DeclaringType))
{
// current property is hidden by the existing so don't add it
return;
}
}
throw new JsonSerializationException(
"A member with the name '{0}' already exists on '{1}'. Use the JsonPropertyAttribute to specify another name.".FormatWith(CultureInfo.InvariantCulture, property.PropertyName, _type));
}
Add(property);
}
/// <summary>
/// Gets the closest matching <see cref="JsonProperty"/> object.
/// First attempts to get an exact case match of propertyName and then
/// a case insensitive match.
/// </summary>
/// <param name="propertyName">Name of the property.</param>
/// <returns>A matching property if found.</returns>
public JsonProperty GetClosestMatchProperty(string propertyName)
{
JsonProperty property = GetProperty(propertyName, StringComparison.Ordinal);
if (property == null)
property = GetProperty(propertyName, StringComparison.OrdinalIgnoreCase);
return property;
}
private bool TryGetValue(string key, out JsonProperty item)
{
if (Dictionary == null)
{
item = default(JsonProperty);
return false;
}
return Dictionary.TryGetValue(key, out item);
}
/// <summary>
/// Gets a property by property name.
/// </summary>
/// <param name="propertyName">The name of the property to get.</param>
/// <param name="comparisonType">Type property name string comparison.</param>
/// <returns>A matching property if found.</returns>
public JsonProperty GetProperty(string propertyName, StringComparison comparisonType)
{
// KeyedCollection has an ordinal comparer
if (comparisonType == StringComparison.Ordinal)
{
JsonProperty property;
if (TryGetValue(propertyName, out property))
return property;
return null;
}
foreach (JsonProperty property in this)
{
if (string.Equals(propertyName, property.PropertyName, comparisonType))
{
return property;
}
}
return null;
}
}
}
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