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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
//-----------------------------------------------------------------------
// <copyright file="ReadOnlyDictionary.cs" company="Microsoft Corporation">
// Copyright (c) Andrew Arnott. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOpenAuth.Messaging {
using System;
using System.Collections.Generic;
/// <summary>
/// Represents a read-only dictionary.
/// </summary>
/// <typeparam name="K">The type of the key.</typeparam>
/// <typeparam name="V">The type of the value.</typeparam>
internal class ReadOnlyDictionary<K, V> : IDictionary<K, V> {
/// <summary>
/// Contains base dictionary.
/// </summary>
private readonly IDictionary<K, V> baseDictionary;
/// <summary>
/// Initializes a new instance of the <see cref="ReadOnlyDictionary<K, V>"/> class.
/// </summary>
/// <param name="baseDictionary">The base dictionary.</param>
public ReadOnlyDictionary(IDictionary<K, V> baseDictionary) {
this.baseDictionary = baseDictionary;
}
/// <summary>
/// Gets an <see cref="T:System.Collections.Generic.ICollection`1"/> containing the keys of the <see cref="T:System.Collections.Generic.IDictionary`2"/>.
/// </summary>
/// <returns>
/// An <see cref="T:System.Collections.Generic.ICollection`1"/> containing the keys of the object that implements <see cref="T:System.Collections.Generic.IDictionary`2"/>.
/// </returns>
public ICollection<K> Keys {
get { return this.baseDictionary.Keys; }
}
/// <summary>
/// Gets an <see cref="T:System.Collections.Generic.ICollection`1"/> containing the values in the <see cref="T:System.Collections.Generic.IDictionary`2"/>.
/// </summary>
/// <returns>
/// An <see cref="T:System.Collections.Generic.ICollection`1"/> containing the values in the object that implements <see cref="T:System.Collections.Generic.IDictionary`2"/>.
/// </returns>
public ICollection<V> Values {
get { return this.baseDictionary.Values; }
}
/// <summary>
/// Gets the number of elements contained in the <see cref="T:System.Collections.Generic.ICollection`1"/>.
/// </summary>
/// <returns>
/// The number of elements contained in the <see cref="T:System.Collections.Generic.ICollection`1"/>.
/// </returns>
public int Count {
get { return this.baseDictionary.Count; }
}
/// <summary>
/// Gets a value indicating whether the <see cref="T:System.Collections.Generic.ICollection`1"/> is read-only.
/// </summary>
/// <returns>true if the <see cref="T:System.Collections.Generic.ICollection`1"/> is read-only; otherwise, false.
/// </returns>
public bool IsReadOnly {
get { return true; }
}
/// <summary>
/// Gets or sets the element with the specified key.
/// </summary>
/// <param name="key">The key being read or written.</param>
/// <returns>
/// The element with the specified key.
/// </returns>
/// <exception cref="T:System.ArgumentNullException"><paramref name="key"/> is null.
/// </exception>
/// <exception cref="T:System.Collections.Generic.KeyNotFoundException">
/// The property is retrieved and <paramref name="key"/> is not found.
/// </exception>
/// <exception cref="T:System.NotSupportedException">
/// The property is set and the <see cref="T:System.Collections.Generic.IDictionary`2"/> is read-only.
/// </exception>
public V this[K key] {
get { return this.baseDictionary[key]; }
set { throw new NotSupportedException(); }
}
/// <summary>
/// Adds an element with the provided key and value to the <see cref="T:System.Collections.Generic.IDictionary`2"/>.
/// </summary>
/// <param name="key">The object to use as the key of the element to add.</param>
/// <param name="value">The object to use as the value of the element to add.</param>
/// <exception cref="T:System.ArgumentNullException"><paramref name="key"/> is null.
/// </exception>
/// <exception cref="T:System.ArgumentException">
/// An element with the same key already exists in the <see cref="T:System.Collections.Generic.IDictionary`2"/>.
/// </exception>
/// <exception cref="T:System.NotSupportedException">
/// The <see cref="T:System.Collections.Generic.IDictionary`2"/> is read-only.
/// </exception>
public void Add(K key, V value) {
throw new NotSupportedException();
}
/// <summary>
/// Determines whether the <see cref="T:System.Collections.Generic.IDictionary`2"/> contains an element with the specified key.
/// </summary>
/// <param name="key">The key to locate in the <see cref="T:System.Collections.Generic.IDictionary`2"/>.</param>
/// <returns>
/// true if the <see cref="T:System.Collections.Generic.IDictionary`2"/> contains an element with the key; otherwise, false.
/// </returns>
/// <exception cref="T:System.ArgumentNullException"><paramref name="key"/> is null.
/// </exception>
public bool ContainsKey(K key) {
return this.baseDictionary.ContainsKey(key);
}
/// <summary>
/// Removes the element with the specified key from the <see cref="T:System.Collections.Generic.IDictionary`2"/>.
/// </summary>
/// <param name="key">The key of the element to remove.</param>
/// <returns>
/// true if the element is successfully removed; otherwise, false. This method also returns false if <paramref name="key"/> was not found in the original <see cref="T:System.Collections.Generic.IDictionary`2"/>.
/// </returns>
/// <exception cref="T:System.ArgumentNullException"><paramref name="key"/> is null.
/// </exception>
/// <exception cref="T:System.NotSupportedException">
/// The <see cref="T:System.Collections.Generic.IDictionary`2"/> is read-only.
/// </exception>
public bool Remove(K key) {
throw new NotSupportedException();
}
/// <summary>
/// Gets the value associated with the specified key.
/// </summary>
/// <param name="key">The key whose value to get.</param>
/// <param name="value">When this method returns, the value associated with the specified key, if the key is found; otherwise, the default value for the type of the <paramref name="value"/> parameter. This parameter is passed uninitialized.</param>
/// <returns>
/// true if the object that implements <see cref="T:System.Collections.Generic.IDictionary`2"/> contains an element with the specified key; otherwise, false.
/// </returns>
/// <exception cref="T:System.ArgumentNullException"><paramref name="key"/> is null.
/// </exception>
public bool TryGetValue(K key, out V value) {
return this.baseDictionary.TryGetValue(key, out value);
}
/// <summary>
/// Adds an item to the <see cref="T:System.Collections.Generic.ICollection`1"/>.
/// </summary>
/// <param name="item">The object to add to the <see cref="T:System.Collections.Generic.ICollection`1"/>.</param>
/// <exception cref="T:System.NotSupportedException">
/// The <see cref="T:System.Collections.Generic.ICollection`1"/> is read-only.
/// </exception>
public void Add(KeyValuePair<K, V> item) {
throw new NotSupportedException();
}
/// <summary>
/// Removes all items from the <see cref="T:System.Collections.Generic.ICollection`1"/>.
/// </summary>
/// <exception cref="T:System.NotSupportedException">
/// The <see cref="T:System.Collections.Generic.ICollection`1"/> is read-only.
/// </exception>
public void Clear() {
throw new NotSupportedException();
}
/// <summary>
/// Determines whether the <see cref="T:System.Collections.Generic.ICollection`1"/> contains a specific value.
/// </summary>
/// <param name="item">The object to locate in the <see cref="T:System.Collections.Generic.ICollection`1"/>.</param>
/// <returns>
/// true if <paramref name="item"/> is found in the <see cref="T:System.Collections.Generic.ICollection`1"/>; otherwise, false.
/// </returns>
public bool Contains(KeyValuePair<K, V> item) {
return this.baseDictionary.Contains(item);
}
/// <summary>
/// Copies to.
/// </summary>
/// <param name="array">The array.</param>
/// <param name="arrayIndex">Index of the array.</param>
public void CopyTo(KeyValuePair<K, V>[] array, int arrayIndex) {
this.baseDictionary.CopyTo(array, arrayIndex);
}
/// <summary>
/// Removes the first occurrence of a specific object from the <see cref="T:System.Collections.Generic.ICollection`1"/>.
/// </summary>
/// <param name="item">The object to remove from the <see cref="T:System.Collections.Generic.ICollection`1"/>.</param>
/// <returns>
/// true if <paramref name="item"/> was successfully removed from the <see cref="T:System.Collections.Generic.ICollection`1"/>; otherwise, false. This method also returns false if <paramref name="item"/> is not found in the original <see cref="T:System.Collections.Generic.ICollection`1"/>.
/// </returns>
/// <exception cref="T:System.NotSupportedException">
/// The <see cref="T:System.Collections.Generic.ICollection`1"/> is read-only.
/// </exception>
public bool Remove(KeyValuePair<K, V> item) {
throw new NotSupportedException();
}
/// <summary>
/// Returns an enumerator that iterates through the collection.
/// </summary>
/// <returns>
/// A <see cref="T:System.Collections.Generic.IEnumerator`1"/> that can be used to iterate through the collection.
/// </returns>
public IEnumerator<KeyValuePair<K, V>> GetEnumerator() {
return this.baseDictionary.GetEnumerator();
}
/// <summary>
/// Returns an enumerator that iterates through a collection.
/// </summary>
/// <returns>
/// An <see cref="T:System.Collections.IEnumerator"/> object that can be used to iterate through the collection.
/// </returns>
System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator() {
return this.baseDictionary.GetEnumerator();
}
}
}
|
