mcs/class/System.ServiceModel/System.ServiceModel.Configuration/ServiceModelExtensionCollectionElement.cs

   1 //
   2 // ServiceModelExtensionCollectionElement.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2006 Novell, Inc.  http://www.novell.com
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28 using System;
  29 using System.Collections;
  30 using System.Collections.Generic;
  31 using System.Configuration;
  32 using System.Xml;
  33
  34 namespace System.ServiceModel.Configuration
  35 {
  36         public abstract class ServiceModelExtensionCollectionElement<TServiceModelExtensionElement> : ConfigurationElement,
  37                 ICollection<TServiceModelExtensionElement>,
  38                 IEnumerable<TServiceModelExtensionElement>,
  39                 IEnumerable
  40                 where TServiceModelExtensionElement : ServiceModelExtensionElement
  41         {
  42                 internal ServiceModelExtensionCollectionElement ()
  43                 {
  44                 }
  45
  46                 ConfigurationPropertyCollection properties;
  47
  48                 KeyedByTypeCollection<TServiceModelExtensionElement> _list = new KeyedByTypeCollection<TServiceModelExtensionElement> ();
  49                 bool is_modified;
  50
  51                 public virtual void Add (TServiceModelExtensionElement element)
  52                 {
  53                         is_modified = true;
  54                         _list.Add (element);
  55                 }
  56
  57                 public virtual bool CanAdd (TServiceModelExtensionElement element) {
  58                         throw new NotImplementedException ();
  59                 }
  60
  61                 public void Clear ()
  62                 {
  63                         is_modified = true;
  64                         _list.Clear ();
  65                 }
  66
  67                 public bool Contains (TServiceModelExtensionElement element)
  68                 {
  69                         return _list.Contains (element);
  70                 }
  71
  72                 public bool ContainsKey (string elementName)
  73                 {
  74                         throw new NotImplementedException ();
  75                 }
  76
  77                 public bool ContainsKey (Type elementType)
  78                 {
  79                         return _list.Contains (elementType);
  80                 }
  81
  82                 public void CopyTo (TServiceModelExtensionElement[] elements,
  83                         int start)
  84                 {
  85                         throw new NotImplementedException ();
  86                 }
  87
  88                 public IEnumerator<TServiceModelExtensionElement> GetEnumerator () {
  89                         for (int i = 0; i < Count; i++)
  90                                 yield return this [i];
  91                 }
  92
  93                 public bool Remove (TServiceModelExtensionElement element)
  94                 {
  95                         is_modified = true;
  96                         return _list.Remove (element.GetType ());
  97                 }
  98
  99                 IEnumerator IEnumerable.GetEnumerator ()
 100                 {
 101                         return GetEnumerator ();
 102                 }
 103
 104                 bool ICollection<TServiceModelExtensionElement>.IsReadOnly {
 105                         get { throw new NotImplementedException (); }
 106                 }
 107
 108                 public TServiceModelExtensionElement this [int index] {
 109                         get {
 110                                 return _list [index];
 111                         }
 112                 }
 113
 114                 public TServiceModelExtensionElement this [Type extensionType] {
 115                         get {
 116                                 if (_list.Contains (extensionType))
 117                                         return _list [extensionType];
 118                                 return null;
 119                         }
 120                 }
 121
 122                 protected override void DeserializeElement (XmlReader reader, bool serializeCollectionKey)
 123                 {
 124                         base.DeserializeElement (reader, serializeCollectionKey);
 125                 }
 126
 127                 protected override bool OnDeserializeUnrecognizedElement (string elementName, XmlReader reader) {
 128                         TServiceModelExtensionElement ext= DeserializeExtensionElement (elementName, reader);
 129                         if (ext == null)
 130                                 return false;
 131                         Add (ext);
 132                         return true;
 133                 }
 134
 135                 internal virtual TServiceModelExtensionElement DeserializeExtensionElement (string elementName, XmlReader reader) {
 136                         return null;
 137                 }
 138
 139                 public int Count {
 140                         get { return _list.Count; }
 141                 }
 142
 143                 protected override void Reset (ConfigurationElement parentElement)
 144                 {
 145                         base.Reset (parentElement);
 146                         var parent = (ServiceModelExtensionCollectionElement<TServiceModelExtensionElement>) parentElement;
 147
 148 #if true
 149                         foreach (var item in parent)
 150                                 Add (item);
 151 #else // FIXME: no way to call Reset() on item (hence disabled now)
 152                         // It is based on ConfigurationElementCollection.Reset()
 153                         for (int n=0; n<parent.Count; n++)
 154                         {
 155                                 var parentItem = parent [n];
 156 //                              ConfigurationElement item = CreateNewElementInternal (null);
 157                                 var item = (TServiceModelExtensionElement) Activator.CreateInstance (parentItem.GetType ()); // FIXME: there is no assureance on default constructor existence.
 158                                 item.Reset (parentItem);
 159                                 Add (item);
 160                         }
 161 #endif
 162                 }
 163
 164                 protected override bool IsModified ()
 165                 {
 166                         return is_modified;
 167                 }
 168
 169                 protected override void ResetModified ()
 170                 {
 171                         is_modified = false;
 172                 }
 173
 174                 protected void SetIsModified ()
 175                 {
 176                         is_modified = true;
 177                 }
 178
 179                 protected override ConfigurationPropertyCollection Properties {
 180                         get {
 181                                 if (properties == null) {
 182                                         properties = base.Properties;
 183                                 }
 184                                 return properties;
 185                         }
 186                 }
 187         }
 188 }