2 // System.Resources.ResourceSet.cs
5 // Duncan Mak (duncan@ximian.com)
6 // Dick Porter (dick@ximian.com)
7 // Andreas Nahr (ClassDevelopment@A-SoftTech.com)
9 // (C) 2001, 2002 Ximian, Inc. http://www.ximian.com
10 // Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
12 // Permission is hereby granted, free of charge, to any person obtaining
13 // a copy of this software and associated documentation files (the
14 // "Software"), to deal in the Software without restriction, including
15 // without limitation the rights to use, copy, modify, merge, publish,
16 // distribute, sublicense, and/or sell copies of the Software, and to
17 // permit persons to whom the Software is furnished to do so, subject to
18 // the following conditions:
20 // The above copyright notice and this permission notice shall be
21 // included in all copies or substantial portions of the Software.
23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
32 using System.Collections;
34 using System.Globalization;
35 using System.Runtime.InteropServices;
36 using System.Security.Permissions;
38 namespace System.Resources
42 public class ResourceSet : IDisposable, IEnumerable
45 protected IResourceReader Reader;
46 protected Hashtable Table;
48 [NonSerialized] Hashtable table_nocase;
51 private bool disposed;
54 protected ResourceSet ()
56 Table = new Hashtable ();
57 resources_read = true;
60 public ResourceSet (IResourceReader reader)
63 throw new ArgumentNullException ("reader");
64 Table = new Hashtable ();
68 [SecurityPermission (SecurityAction.LinkDemand, SerializationFormatter = true)]
69 public ResourceSet (Stream stream)
71 Table = new Hashtable ();
72 Reader = new ResourceReader (stream);
75 internal ResourceSet (UnmanagedMemoryStream stream)
77 Table = new Hashtable ();
78 Reader = new ResourceReader (stream);
81 public ResourceSet (string fileName)
83 Table = new Hashtable ();
84 Reader = new ResourceReader (fileName);
87 public virtual void Close ()
96 // If we are explicitly disposed, we can avoid finalization.
97 GC.SuppressFinalize (this);
100 protected virtual void Dispose (bool disposing)
113 public virtual Type GetDefaultReader ()
115 return (typeof (ResourceReader));
118 public virtual Type GetDefaultWriter ()
120 return (typeof (ResourceWriter));
124 public virtual IDictionaryEnumerator GetEnumerator ()
127 throw new ObjectDisposedException ("ResourceSet is closed.");
129 return Table.GetEnumerator();
132 IEnumerator IEnumerable.GetEnumerator ()
134 return this.GetEnumerator ();
137 private object GetObjectInternal (string name, bool ignoreCase)
140 throw new ArgumentNullException ("name");
142 throw new ObjectDisposedException ("ResourceSet is closed.");
149 if (table_nocase == null) {
151 if (table_nocase == null) {
152 Hashtable ht = new Hashtable (StringComparer.InvariantCultureIgnoreCase);
153 foreach (DictionaryEntry de in Table) {
154 ht.Add (de.Key, de.Value);
160 return table_nocase [name];
163 public virtual object GetObject (string name)
165 return GetObjectInternal (name, false);
168 public virtual object GetObject (string name, bool ignoreCase)
170 return GetObjectInternal (name, ignoreCase);
173 private string GetStringInternal (string name, bool ignoreCase)
175 object value = GetObject (name, ignoreCase);
179 string s = (value as string);
181 throw new InvalidOperationException (string.Format (
182 "Resource '{0}' is not a String. Use " +
183 "GetObject instead.", name));
188 public virtual string GetString (string name)
190 return GetStringInternal (name, false);
193 public virtual string GetString (string name, bool ignoreCase)
195 return GetStringInternal (name, ignoreCase);
198 protected virtual void ReadResources ()
204 throw new ObjectDisposedException ("ResourceSet is closed.");
209 IDictionaryEnumerator i = Reader.GetEnumerator();
211 while (i.MoveNext ())
212 Table.Add (i.Key, i.Value);
213 resources_read = true;
217 internal UnmanagedMemoryStream GetStream (string name, bool ignoreCase)
220 throw new ObjectDisposedException ("ResourceSet is closed.");
222 IDictionaryEnumerator i = Reader.GetEnumerator();
224 while (i.MoveNext ()){
225 if (String.Compare (name, (string) i.Key, ignoreCase) == 0)
226 return ((ResourceReader.ResourceEnumerator) i).ValueAsStream;