Core/Castle.Core/ReflectionBasedDictionaryAdapter.cs

   1 // Copyright 2004-2008 Castle Project - http://www.castleproject.org/
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 namespace Castle.Core
  16 {
  17         using System;
  18         using System.Collections;
  19         using System.Reflection;
  20         using System.Collections.Generic;
  21
  22         /// <summary>
  23         /// Pendent
  24         /// </summary>
  25         public class ReflectionBasedDictionaryAdapter : IDictionary
  26         {
  27                 private readonly Dictionary<string,object> properties = new Dictionary<string, object>(StringComparer.InvariantCultureIgnoreCase);
  28
  29                 /// <summary>
  30                 /// Initializes a new instance of the <see cref="ReflectionBasedDictionaryAdapter"/> class.
  31                 /// </summary>
  32                 /// <param name="target">The target.</param>
  33                 public ReflectionBasedDictionaryAdapter(object target)
  34                 {
  35                         if (target == null)
  36                         {
  37                                 throw new ArgumentNullException("target");
  38                         }
  39
  40                         Type targetType = target.GetType();
  41
  42                         foreach(PropertyInfo property in targetType.GetProperties(BindingFlags.Public | BindingFlags.Instance))
  43                         {
  44                                 object value = property.GetValue(target, null);
  45
  46                                 properties[property.Name] = value;
  47                         }
  48                 }
  49
  50                 /// <summary>
  51                 /// Determines whether the <see cref="T:System.Collections.IDictionary"/> object contains an element with the specified key.
  52                 /// </summary>
  53                 /// <param name="key">The key to locate in the <see cref="T:System.Collections.IDictionary"/> object.</param>
  54                 /// <returns>
  55                 /// true if the <see cref="T:System.Collections.IDictionary"/> contains an element with the key; otherwise, false.
  56                 /// </returns>
  57                 /// <exception cref="T:System.ArgumentNullException">
  58                 ///     <paramref name="key"/> is null. </exception>
  59                 public bool Contains(object key)
  60                 {
  61                         return properties.ContainsKey(key.ToString());
  62                 }
  63
  64                 /// <summary>
  65                 /// Gets or sets the <see cref="System.Object"/> with the specified key.
  66                 /// </summary>
  67                 /// <value></value>
  68                 public object this[object key]
  69                 {
  70                         get
  71                         {
  72                                 object value;
  73                                 properties.TryGetValue(key.ToString(), out value);
  74                                 return value;
  75                         }
  76                         set { throw new NotImplementedException(); }
  77                 }
  78
  79                 /// <summary>
  80                 /// Adds an element with the provided key and value to the <see cref="T:System.Collections.IDictionary"/> object.
  81                 /// </summary>
  82                 /// <param name="key">The <see cref="T:System.Object"/> to use as the key of the element to add.</param>
  83                 /// <param name="value">The <see cref="T:System.Object"/> to use as the value of the element to add.</param>
  84                 /// <exception cref="T:System.ArgumentNullException">
  85                 ///     <paramref name="key"/> is null. </exception>
  86                 /// <exception cref="T:System.ArgumentException">An element with the same key already exists in the <see cref="T:System.Collections.IDictionary"/> object. </exception>
  87                 /// <exception cref="T:System.NotSupportedException">The <see cref="T:System.Collections.IDictionary"/> is read-only.-or- The <see cref="T:System.Collections.IDictionary"/> has a fixed size. </exception>
  88                 public void Add(object key, object value)
  89                 {
  90                         throw new NotImplementedException();
  91                 }
  92
  93                 /// <summary>
  94                 /// Removes all elements from the <see cref="T:System.Collections.IDictionary"/> object.
  95                 /// </summary>
  96                 /// <exception cref="T:System.NotSupportedException">The <see cref="T:System.Collections.IDictionary"/> object is read-only. </exception>
  97                 public void Clear()
  98                 {
  99                         throw new NotImplementedException();
 100                 }
 101
 102                 /// <summary>
 103                 /// Returns an <see cref="T:System.Collections.IDictionaryEnumerator"/> object for the <see cref="T:System.Collections.IDictionary"/> object.
 104                 /// </summary>
 105                 /// <returns>
 106                 /// An <see cref="T:System.Collections.IDictionaryEnumerator"/> object for the <see cref="T:System.Collections.IDictionary"/> object.
 107                 /// </returns>
 108                 IDictionaryEnumerator IDictionary.GetEnumerator()
 109                 {
 110                         return new DictionaryEntryEnumeratorAdapter( properties.GetEnumerator() );
 111                 }
 112
 113                 /// <summary>
 114                 /// Removes the element with the specified key from the <see cref="T:System.Collections.IDictionary"/> object.
 115                 /// </summary>
 116                 /// <param name="key">The key of the element to remove.</param>
 117                 /// <exception cref="T:System.ArgumentNullException">
 118                 ///     <paramref name="key"/> is null. </exception>
 119                 /// <exception cref="T:System.NotSupportedException">The <see cref="T:System.Collections.IDictionary"/> object is read-only.-or- The <see cref="T:System.Collections.IDictionary"/> has a fixed size. </exception>
 120                 public void Remove(object key)
 121                 {
 122                 }
 123
 124                 /// <summary>
 125                 /// Gets an <see cref="T:System.Collections.ICollection"/> object containing the keys of the <see cref="T:System.Collections.IDictionary"/> object.
 126                 /// </summary>
 127                 /// <value></value>
 128                 /// <returns>An <see cref="T:System.Collections.ICollection"/> object containing the keys of the <see cref="T:System.Collections.IDictionary"/> object.</returns>
 129                 public ICollection Keys
 130                 {
 131                         get { return properties.Keys; }
 132                 }
 133
 134                 /// <summary>
 135                 /// Gets an <see cref="T:System.Collections.ICollection"/> object containing the values in the <see cref="T:System.Collections.IDictionary"/> object.
 136                 /// </summary>
 137                 /// <value></value>
 138                 /// <returns>An <see cref="T:System.Collections.ICollection"/> object containing the values in the <see cref="T:System.Collections.IDictionary"/> object.</returns>
 139                 public ICollection Values
 140                 {
 141                         get { return properties.Values; }
 142                 }
 143
 144                 /// <summary>
 145                 /// Gets a value indicating whether the <see cref="T:System.Collections.IDictionary"/> object is read-only.
 146                 /// </summary>
 147                 /// <value></value>
 148                 /// <returns>true if the <see cref="T:System.Collections.IDictionary"/> object is read-only; otherwise, false.</returns>
 149                 public bool IsReadOnly
 150                 {
 151                         get { return true; }
 152                 }
 153
 154                 /// <summary>
 155                 /// Gets a value indicating whether the <see cref="T:System.Collections.IDictionary"/> object has a fixed size.
 156                 /// </summary>
 157                 /// <value></value>
 158                 /// <returns>true if the <see cref="T:System.Collections.IDictionary"/> object has a fixed size; otherwise, false.</returns>
 159                 public bool IsFixedSize
 160                 {
 161                         get { throw new NotImplementedException(); }
 162                 }
 163
 164                 /// <summary>
 165                 /// Copies the elements of the <see cref="T:System.Collections.ICollection"/> to an <see cref="T:System.Array"/>, starting at a particular <see cref="T:System.Array"/> index.
 166                 /// </summary>
 167                 /// <param name="array">The one-dimensional <see cref="T:System.Array"/> that is the destination of the elements copied from <see cref="T:System.Collections.ICollection"/>. The <see cref="T:System.Array"/> must have zero-based indexing.</param>
 168                 /// <param name="index">The zero-based index in <paramref name="array"/> at which copying begins.</param>
 169                 /// <exception cref="T:System.ArgumentNullException">
 170                 ///     <paramref name="array"/> is null. </exception>
 171                 /// <exception cref="T:System.ArgumentOutOfRangeException">
 172                 ///     <paramref name="index"/> is less than zero. </exception>
 173                 /// <exception cref="T:System.ArgumentException">
 174                 ///     <paramref name="array"/> is multidimensional.-or- <paramref name="index"/> is equal to or greater than the length of <paramref name="array"/>.-or- The number of elements in the source <see cref="T:System.Collections.ICollection"/> is greater than the available space from <paramref name="index"/> to the end of the destination <paramref name="array"/>. </exception>
 175                 /// <exception cref="T:System.ArgumentException">The type of the source <see cref="T:System.Collections.ICollection"/> cannot be cast automatically to the type of the destination <paramref name="array"/>. </exception>
 176                 public void CopyTo(Array array, int index)
 177                 {
 178                         throw new NotImplementedException();
 179                 }
 180
 181                 /// <summary>
 182                 /// Gets the number of elements contained in the <see cref="T:System.Collections.ICollection"/>.
 183                 /// </summary>
 184                 /// <value></value>
 185                 /// <returns>The number of elements contained in the <see cref="T:System.Collections.ICollection"/>.</returns>
 186                 public int Count
 187                 {
 188                         get { return properties.Count; }
 189                 }
 190
 191                 /// <summary>
 192                 /// Gets an object that can be used to synchronize access to the <see cref="T:System.Collections.ICollection"/>.
 193                 /// </summary>
 194                 /// <value></value>
 195                 /// <returns>An object that can be used to synchronize access to the <see cref="T:System.Collections.ICollection"/>.</returns>
 196                 public object SyncRoot
 197                 {
 198                         get { return properties; }
 199                 }
 200
 201                 /// <summary>
 202                 /// Gets a value indicating whether access to the <see cref="T:System.Collections.ICollection"/> is synchronized (thread safe).
 203                 /// </summary>
 204                 /// <value></value>
 205                 /// <returns>true if access to the <see cref="T:System.Collections.ICollection"/> is synchronized (thread safe); otherwise, false.</returns>
 206                 public bool IsSynchronized
 207                 {
 208                         get { return false; }
 209                 }
 210
 211                 /// <summary>
 212                 /// Returns an enumerator that iterates through a collection.
 213                 /// </summary>
 214                 /// <returns>
 215                 /// An <see cref="T:System.Collections.IEnumerator"/> object that can be used to iterate through the collection.
 216                 /// </returns>
 217                 public IEnumerator GetEnumerator()
 218                 {
 219                         return new DictionaryEntryEnumeratorAdapter( properties.GetEnumerator() );
 220                 }
 221
 222                 class DictionaryEntryEnumeratorAdapter : IDictionaryEnumerator
 223                 {
 224                         private readonly IDictionaryEnumerator enumerator;
 225                         private KeyValuePair<string, object> current;
 226
 227                         public DictionaryEntryEnumeratorAdapter(IDictionaryEnumerator enumerator)
 228                         {
 229                                 this.enumerator = enumerator;
 230                         }
 231
 232                         public object Key
 233                         {
 234                                 get { return current.Key; }
 235                         }
 236
 237                         public object Value
 238                         {
 239                                 get { return current.Value; }
 240                         }
 241
 242                         public DictionaryEntry Entry
 243                         {
 244                                 get { return new DictionaryEntry(Key, Value); }
 245                         }
 246
 247                         public bool MoveNext()
 248                         {
 249                                 return enumerator.MoveNext();
 250                         }
 251
 252                         public void Reset()
 253                         {
 254                                 enumerator.Reset();
 255                         }
 256
 257                         public object Current
 258                         {
 259                                 get
 260                                 {
 261
 262                                         current = (KeyValuePair<string, object>) enumerator.Current;
 263                                         return new DictionaryEntry(Key, Value);
 264                                 }
 265                         }
 266                 }
 267         }
 268 }