File: JsonPropertyCollection.cs

package info (click to toggle)
mono 4.6.2.7+dfsg-1
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 778,148 kB
  • ctags: 914,052
  • sloc: cs: 5,779,509; xml: 2,773,713; ansic: 432,645; sh: 14,749; makefile: 12,361; perl: 2,488; python: 1,434; cpp: 849; asm: 531; sql: 95; sed: 16; php: 1
file content (164 lines) | stat: -rw-r--r-- 5,587 bytes parent folder | download | duplicates (8)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
#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];
        bool duplicateProperty = true;

        if (existingProperty.Ignored)
        {
          // remove ignored property so it can be replaced in collection
          Remove(existingProperty);
          duplicateProperty = false;
        }

        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);
            duplicateProperty = false;
          }
          if (existingProperty.DeclaringType.IsSubclassOf(property.DeclaringType))
          {
            // current property is hidden by the existing so don't add it
            return;
          }
        }

        if (duplicateProperty)
          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;
    }
  }
}