mcs/class/System.XML/System.Xml.Serialization/XmlSerializationReaderInterpreter.cs

   1 //
   2 // XmlSerializationReaderInterpreter.cs:
   3 //
   4 // Author:
   5 //   Lluis Sanchez Gual (lluis@ximian.com)
   6 //
   7 // (C) 2002, 2003 Ximian, Inc.  http://www.ximian.com
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System;
  32 using System.Reflection;
  33 using System.Collections;
  34
  35 namespace System.Xml.Serialization
  36 {
  37         internal class XmlSerializationReaderInterpreter: XmlSerializationReader
  38         {
  39                 XmlMapping _typeMap;
  40                 SerializationFormat _format;
  41                 static readonly XmlQualifiedName AnyType = new XmlQualifiedName("anyType", System.Xml.Schema.XmlSchema.Namespace);
  42                 static readonly object [] empty_array = new object [0];
  43
  44                 public XmlSerializationReaderInterpreter(XmlMapping typeMap)
  45                 {
  46                         _typeMap = typeMap;
  47                         _format = typeMap.Format;
  48                 }
  49
  50                 protected override void InitCallbacks ()
  51                 {
  52                         ArrayList maps = _typeMap.RelatedMaps;
  53                         if (maps != null)
  54                         {
  55                                 foreach (XmlTypeMapping map in maps)
  56                                 {
  57                                         if (map.TypeData.SchemaType == SchemaTypes.Class || map.TypeData.SchemaType == SchemaTypes.Enum)
  58                                         {
  59                                                 ReaderCallbackInfo info = new ReaderCallbackInfo (this, map);
  60                                                 AddReadCallback (map.XmlType, map.Namespace, map.TypeData.Type, new XmlSerializationReadCallback (info.ReadObject));
  61                                         }
  62                                 }
  63                         }
  64                 }
  65
  66                 protected override void InitIDs ()
  67                 {
  68                 }
  69
  70                 protected XmlTypeMapping GetTypeMap (Type type)
  71                 {
  72                         ArrayList maps = _typeMap.RelatedMaps;
  73                         if (maps != null)
  74                         {
  75                                 foreach (XmlTypeMapping map in maps)
  76                                         if (map.TypeData.Type == type) return map;
  77                         }
  78                         throw new InvalidOperationException ("Type " + type + " not mapped");
  79                 }
  80
  81                 public object ReadRoot ()
  82                 {
  83                         Reader.MoveToContent();
  84                         if (_typeMap is XmlTypeMapping)
  85                         {
  86                                 if (_format == SerializationFormat.Literal)
  87                                         return ReadRoot ((XmlTypeMapping)_typeMap);
  88                                 else
  89                                         return ReadEncodedObject ((XmlTypeMapping)_typeMap);
  90                         }
  91                         else
  92                                 return ReadMessage ((XmlMembersMapping)_typeMap);
  93                 }
  94
  95                 object ReadEncodedObject (XmlTypeMapping typeMap)
  96                 {
  97                         object ob = null;
  98                         Reader.MoveToContent();
  99                         if (Reader.NodeType == System.Xml.XmlNodeType.Element)
 100                         {
 101                                 if (Reader.LocalName == typeMap.ElementName && Reader.NamespaceURI == typeMap.Namespace)
 102                                         ob = ReadReferencedElement();
 103                                 else
 104                                         throw CreateUnknownNodeException();
 105                         }
 106                         else
 107                                 UnknownNode(null);
 108
 109                         ReadReferencedElements();
 110                         return ob;
 111                 }
 112
 113                 protected virtual object ReadMessage (XmlMembersMapping typeMap)
 114                 {
 115                         object[] parameters = new object[typeMap.Count];
 116
 117                         if (typeMap.HasWrapperElement)
 118                         {
 119                                 // bug #79988: out parameters need to be initialized if they
 120                                 // are value types
 121                                 ArrayList members = ((ClassMap) typeMap.ObjectMap).AllMembers;
 122                                 for (int n = 0; n < members.Count; n++) {
 123                                         XmlTypeMapMember mem = (XmlTypeMapMember) members [n];
 124                                         if (!mem.IsReturnValue && mem.TypeData.IsValueType)
 125                                                 SetMemberValueFromAttr (mem, parameters, CreateInstance (
 126                                                         mem.TypeData.Type), true);
 127                                 }
 128
 129                                 if (_format == SerializationFormat.Encoded)
 130                                 {
 131                                         while (Reader.NodeType == System.Xml.XmlNodeType.Element)
 132                                         {
 133                                                 string root = Reader.GetAttribute ("root", XmlSerializer.EncodingNamespace);
 134                                                 if (root == null || System.Xml.XmlConvert.ToBoolean(root)) break;
 135                                                 ReadReferencedElement ();
 136                                                 Reader.MoveToContent ();
 137                                         }
 138                                 }
 139
 140                                 while (Reader.NodeType != System.Xml.XmlNodeType.EndElement &&
 141                                        // it could be an empty root element
 142                                        Reader.ReadState == ReadState.Interactive)
 143                                 {
 144                                         if (Reader.IsStartElement(typeMap.ElementName, typeMap.Namespace)
 145                                             || _format == SerializationFormat.Encoded)
 146                                         {
 147                                                 ReadAttributeMembers ((ClassMap)typeMap.ObjectMap, parameters, true);
 148                                                 if (Reader.IsEmptyElement) {
 149                                                         Reader.Skip();
 150                                                         Reader.MoveToContent();
 151                                                         continue;
 152                                                 }
 153                                                 Reader.ReadStartElement();
 154                                                 ReadMembers ((ClassMap)typeMap.ObjectMap, parameters, true, false);
 155                                                 ReadEndElement();
 156                                                 break;
 157                                         }
 158                                         else
 159                                                 UnknownNode(null);
 160
 161                                         Reader.MoveToContent();
 162                                 }
 163                         }
 164                         else
 165                                 ReadMembers ((ClassMap)typeMap.ObjectMap, parameters, true, _format == SerializationFormat.Encoded);
 166
 167                         if (_format == SerializationFormat.Encoded)
 168                                 ReadReferencedElements();
 169
 170                         return parameters;
 171                 }
 172
 173                 object ReadRoot (XmlTypeMapping rootMap)
 174                 {
 175                         if (rootMap.TypeData.SchemaType == SchemaTypes.XmlNode)
 176                         {
 177                                 return ReadXmlNodeElement (rootMap, true);
 178                         }
 179                         else
 180                         {
 181                                 if (Reader.LocalName != rootMap.ElementName || Reader.NamespaceURI != rootMap.Namespace)
 182                                         throw CreateUnknownNodeException();
 183
 184                                 return ReadObject (rootMap, rootMap.IsNullable, true);
 185                         }
 186                 }
 187
 188
 189                 protected virtual object ReadObject (XmlTypeMapping typeMap, bool isNullable, bool checkType)
 190                 {
 191                         switch (typeMap.TypeData.SchemaType)
 192                         {
 193                                 case SchemaTypes.Class: return ReadClassInstance (typeMap, isNullable, checkType);
 194                                 case SchemaTypes.Array: return ReadListElement (typeMap, isNullable, null, true);
 195                                 case SchemaTypes.XmlNode: return ReadXmlNodeElement (typeMap, isNullable);
 196                                 case SchemaTypes.Primitive: return ReadPrimitiveElement (typeMap, isNullable);
 197                                 case SchemaTypes.Enum: return ReadEnumElement (typeMap, isNullable);
 198                                 case SchemaTypes.XmlSerializable: return ReadXmlSerializableElement (typeMap, isNullable);
 199                                 default: throw new Exception ("Unsupported map type");
 200                         }
 201                 }
 202
 203                 protected virtual object ReadClassInstance (XmlTypeMapping typeMap, bool isNullable, bool checkType)
 204                 {
 205                         if (isNullable && ReadNull()) return null;
 206
 207                         if (checkType)
 208                         {
 209                 System.Xml.XmlQualifiedName t = GetXsiType();
 210                                 if (t != null)
 211                                 {
 212                                         XmlTypeMapping realMap = typeMap.GetRealElementMap (t.Name, t.Namespace);
 213                                         if (realMap == null) {
 214                                                 if (typeMap.TypeData.Type == typeof(object))
 215                                                         return ReadTypedPrimitive (t);
 216                                                 else
 217                                                         throw CreateUnknownTypeException((System.Xml.XmlQualifiedName)t);
 218                                         }
 219                                         if (realMap != typeMap)
 220                                                 return ReadObject (realMap, false, false);
 221                                 }
 222                                 else if (typeMap.TypeData.Type == typeof(object))
 223                                         return ReadTypedPrimitive (AnyType);
 224             }
 225
 226                         object ob = Activator.CreateInstance (typeMap.TypeData.Type);
 227
 228                         Reader.MoveToElement();
 229                         bool isEmpty = Reader.IsEmptyElement;
 230                         ReadClassInstanceMembers (typeMap, ob);
 231
 232                         if (isEmpty) Reader.Skip();
 233                         else ReadEndElement();
 234
 235                         return ob;
 236                 }
 237
 238                 protected virtual void ReadClassInstanceMembers (XmlTypeMapping typeMap, object ob)
 239                 {
 240                         ReadMembers ((ClassMap) typeMap.ObjectMap, ob, false, false);
 241                 }
 242
 243                 void ReadAttributeMembers (ClassMap map, object ob, bool isValueList)
 244                 {
 245                         XmlTypeMapMember anyAttrMember = map.DefaultAnyAttributeMember;
 246                         int anyAttributeIndex = 0;
 247                         object anyAttributeArray = null;
 248
 249                         while (Reader.MoveToNextAttribute())
 250                         {
 251                                 XmlTypeMapMemberAttribute member = map.GetAttribute (Reader.LocalName, Reader.NamespaceURI);
 252
 253                                 if (member != null)
 254                                 {
 255                                         SetMemberValue (member, ob, GetValueFromXmlString (Reader.Value, member.TypeData, member.MappedType), isValueList);
 256                                 }
 257                                 else if (IsXmlnsAttribute(Reader.Name))
 258                                 {
 259                                         // If the map has NamespaceDeclarations,
 260                                         // then store this xmlns to the given member.
 261                                         // If the instance doesn't exist, then create.
 262                                         if (map.NamespaceDeclarations != null) {
 263                                                 XmlSerializerNamespaces nss = this.GetMemberValue (map.NamespaceDeclarations, ob, isValueList) as XmlSerializerNamespaces;
 264                                                 if (nss == null) {
 265                                                         nss = new XmlSerializerNamespaces ();
 266                                                         SetMemberValue (map.NamespaceDeclarations, ob, nss, isValueList);
 267                                                 }
 268                                                 if (Reader.Prefix == "xmlns")
 269                                                         nss.Add (Reader.LocalName, Reader.Value);
 270                                                 else
 271                                                         nss.Add ("", Reader.Value);
 272                                         }
 273                                 }
 274                                 else if (anyAttrMember != null)
 275                                 {
 276                                         XmlAttribute attr = (XmlAttribute) Document.ReadNode(Reader);
 277                                         ParseWsdlArrayType (attr);
 278                                         AddListValue (anyAttrMember.TypeData, ref anyAttributeArray, anyAttributeIndex++, attr, true);
 279                                 }
 280                                 else
 281                                         ProcessUnknownAttribute(ob);
 282                         }
 283
 284                         if (anyAttrMember != null)
 285                         {
 286                                 anyAttributeArray = ShrinkArray ((Array)anyAttributeArray, anyAttributeIndex, anyAttrMember.TypeData.Type.GetElementType(), true);
 287                                 SetMemberValue (anyAttrMember, ob, anyAttributeArray, isValueList);
 288                         }
 289                         Reader.MoveToElement ();
 290                 }
 291
 292                 void ReadMembers (ClassMap map, object ob, bool isValueList, bool readByOrder)
 293                 {
 294                         // Set the default values of the members
 295                         if (map.MembersWithDefault != null)
 296                         {
 297                                 ArrayList members = map.MembersWithDefault;
 298                                 for (int n=0; n<members.Count; n++) {
 299                                         XmlTypeMapMember mem = (XmlTypeMapMember) members[n];
 300                                         SetMemberValueFromAttr (mem, ob, mem.DefaultValue, isValueList);
 301                                 }
 302                         }
 303
 304                         // Reads attributes
 305                         ReadAttributeMembers (map, ob, isValueList);
 306
 307                         if (!isValueList)
 308                         {
 309                                 Reader.MoveToElement();
 310                                 if (Reader.IsEmptyElement) {
 311                                         SetListMembersDefaults (map, ob, isValueList);
 312                                         return;
 313                                 }
 314
 315                                 Reader.ReadStartElement();
 316                         }
 317
 318                         // Reads elements
 319
 320                         bool[] readFlag = new bool[(map.ElementMembers != null) ? map.ElementMembers.Count : 0];
 321
 322                         bool hasAnyReturnMember = (isValueList && _format == SerializationFormat.Encoded && map.ReturnMember != null);
 323
 324                         Reader.MoveToContent();
 325
 326                         int[] indexes = null;
 327                         object[] flatLists = null;
 328                         object[] flatListsChoices = null;
 329                         Fixup fixup = null;
 330                         int ind = 0;
 331                         int maxInd;
 332
 333                         if (readByOrder) {
 334                                 if (map.ElementMembers != null) maxInd = map.ElementMembers.Count;
 335                                 else maxInd = 0;
 336                         }
 337                         else
 338                                 maxInd = int.MaxValue;
 339
 340                         if (map.FlatLists != null)
 341                         {
 342                                 indexes = new int[map.FlatLists.Count];
 343                                 flatLists = new object[map.FlatLists.Count];
 344                                 foreach (XmlTypeMapMemberExpandable mem in map.FlatLists) {
 345                                         if (IsReadOnly (mem, mem.TypeData, ob, isValueList))
 346                                                 flatLists [mem.FlatArrayIndex] = mem.GetValue (ob);
 347                                         else if (mem.TypeData.Type.IsArray) {
 348                                                 flatLists [mem.FlatArrayIndex] = InitializeList (mem.TypeData);
 349                                         }
 350                                         else {
 351                                                 object list = mem.GetValue (ob);
 352                                                 if (list == null) {
 353                                                         list = InitializeList (mem.TypeData);
 354                                                         SetMemberValue (mem, ob, list, isValueList);
 355                                                 }
 356                                                 flatLists [mem.FlatArrayIndex] = list;
 357                                         }
 358
 359                                         if (mem.ChoiceMember != null) {
 360                                                 if (flatListsChoices == null)
 361                                                         flatListsChoices = new object [map.FlatLists.Count];
 362                                                 flatListsChoices [mem.FlatArrayIndex] = InitializeList (mem.ChoiceTypeData);
 363                                         }
 364                                 }
 365                         }
 366
 367                         if (_format == SerializationFormat.Encoded && map.ElementMembers != null)
 368                         {
 369                                 FixupCallbackInfo info = new FixupCallbackInfo (this, map, isValueList);
 370                                 fixup = new Fixup(ob, new XmlSerializationFixupCallback(info.FixupMembers), map.ElementMembers.Count);
 371                                 AddFixup (fixup);
 372                         }
 373
 374                         while (Reader.NodeType != System.Xml.XmlNodeType.EndElement && (ind < maxInd))
 375                         {
 376                                 if (Reader.NodeType == System.Xml.XmlNodeType.Element)
 377                                 {
 378                                         XmlTypeMapElementInfo info;
 379
 380                                         if (readByOrder) {
 381                                                 info = map.GetElement (ind++);
 382                                         }
 383                                         else if (hasAnyReturnMember) {
 384                                                 info = (XmlTypeMapElementInfo) ((XmlTypeMapMemberElement)map.ReturnMember).ElementInfo[0];
 385                                                 hasAnyReturnMember = false;
 386                                         }
 387                                         else
 388                                                 info = map.GetElement (Reader.LocalName, Reader.NamespaceURI);
 389
 390                                         if (info != null && !readFlag[info.Member.Index] )
 391                                         {
 392                                                 if (info.Member.GetType() == typeof (XmlTypeMapMemberList))
 393                                                 {
 394                                                         if (_format == SerializationFormat.Encoded && info.MultiReferenceType)
 395                                                         {
 396                                                                 object list = ReadReferencingElement (out fixup.Ids[info.Member.Index]);
 397                                                                 if (fixup.Ids[info.Member.Index] == null)       // Already read
 398                                                                 {
 399                                                                         if (IsReadOnly (info.Member, info.TypeData, ob, isValueList)) throw CreateReadOnlyCollectionException (info.TypeData.FullTypeName);
 400                                                                         else SetMemberValue (info.Member, ob, list, isValueList);
 401                                                                 }
 402                                                                 else if (!info.MappedType.TypeData.Type.IsArray)
 403                                                                 {
 404                                                                         if (IsReadOnly (info.Member, info.TypeData, ob, isValueList))
 405                                                                                 list = GetMemberValue (info.Member, ob, isValueList);
 406                                                                         else {
 407                                                                                 list = CreateList (info.MappedType.TypeData.Type);
 408                                                                                 SetMemberValue (info.Member, ob, list, isValueList);
 409                                                                         }
 410                                                                         AddFixup (new CollectionFixup (list, new XmlSerializationCollectionFixupCallback (FillList), fixup.Ids[info.Member.Index]));
 411                                                                         fixup.Ids[info.Member.Index] = null;    // The member already has the value, no further fix needed.
 412                                                                 }
 413                                                         }
 414                                                         else
 415                                                         {
 416                                                                 if (IsReadOnly (info.Member, info.TypeData, ob, isValueList)) {
 417                                                                         ReadListElement (info.MappedType, info.IsNullable, GetMemberValue (info.Member, ob, isValueList), false);
 418                                                                 } else if (info.MappedType.TypeData.Type.IsArray) {
 419                                                                         object list = ReadListElement (info.MappedType, info.IsNullable, null, true);
 420                                                                         if (list != null || info.IsNullable)
 421                                                                                 SetMemberValue (info.Member, ob, list, isValueList);
 422                                                                 } else {
 423                                                                         // If the member already has a list, reuse that list. No need to create a new one.
 424                                                                         object list = GetMemberValue (info.Member, ob, isValueList);
 425                                                                         if (list == null) {
 426                                                                                 list = CreateList (info.MappedType.TypeData.Type);
 427                                                                                 SetMemberValue (info.Member, ob, list, isValueList);
 428                                                                         }
 429                                                                         ReadListElement (info.MappedType, info.IsNullable, list, true);
 430                                                                 }
 431                                                         }
 432                                                         readFlag[info.Member.Index] = true;
 433                                                 }
 434                                                 else if (info.Member.GetType() == typeof (XmlTypeMapMemberFlatList))
 435                                                 {
 436                                                         XmlTypeMapMemberFlatList mem = (XmlTypeMapMemberFlatList)info.Member;
 437                                                         AddListValue (mem.TypeData, ref flatLists[mem.FlatArrayIndex], indexes[mem.FlatArrayIndex]++, ReadObjectElement (info), !IsReadOnly (info.Member, info.TypeData, ob, isValueList));
 438                                                         if (mem.ChoiceMember != null) {
 439                                                                 AddListValue (mem.ChoiceTypeData, ref flatListsChoices [mem.FlatArrayIndex], indexes[mem.FlatArrayIndex]-1, info.ChoiceValue, true);
 440                                                         }
 441                                                 }
 442                                                 else if (info.Member.GetType() == typeof (XmlTypeMapMemberAnyElement))
 443                                                 {
 444                                                         XmlTypeMapMemberAnyElement mem = (XmlTypeMapMemberAnyElement)info.Member;
 445                                                         if (mem.TypeData.IsListType) AddListValue (mem.TypeData, ref flatLists[mem.FlatArrayIndex], indexes[mem.FlatArrayIndex]++, ReadXmlNode (mem.TypeData.ListItemTypeData, false), true);
 446                                                         else SetMemberValue (mem, ob, ReadXmlNode (mem.TypeData, false), isValueList);
 447                                                 }
 448                                                 else if (info.Member.GetType() == typeof(XmlTypeMapMemberElement))
 449                                                 {
 450                                                         object val;
 451                                                         readFlag[info.Member.Index] = true;
 452                                                         if (_format == SerializationFormat.Encoded)
 453                                                         {
 454                                                                 if (info.Member.TypeData.SchemaType != SchemaTypes.Primitive)
 455                                                                         val = ReadReferencingElement (out fixup.Ids[info.Member.Index]);
 456                                                                 else
 457                                                                         val = ReadReferencingElement (info.Member.TypeData.XmlType, System.Xml.Schema.XmlSchema.Namespace, out fixup.Ids[info.Member.Index]);
 458
 459                                                                 if (info.MultiReferenceType) {
 460                                                                         if (fixup.Ids[info.Member.Index] == null)       // already read
 461                                                                                 SetMemberValue (info.Member, ob, val, isValueList);
 462                                                                 }
 463                                                                 else if (val != null)
 464                                                                         SetMemberValue (info.Member, ob, val, isValueList);
 465                                                         }
 466                                                         else {
 467                                                                 SetMemberValue (info.Member, ob, ReadObjectElement (info), isValueList);
 468                                                                 if (info.ChoiceValue != null) {
 469                                                                         XmlTypeMapMemberElement imem = (XmlTypeMapMemberElement) info.Member;
 470                                                                         imem.SetChoice (ob, info.ChoiceValue);
 471                                                                 }
 472                                                         }
 473                                                 }
 474                                                 else
 475                                                         throw new InvalidOperationException ("Unknown member type");
 476                                         }
 477                                         else if (map.DefaultAnyElementMember != null)
 478                                         {
 479                                                 XmlTypeMapMemberAnyElement mem = map.DefaultAnyElementMember;
 480                                                 if (mem.TypeData.IsListType) AddListValue (mem.TypeData, ref flatLists[mem.FlatArrayIndex], indexes[mem.FlatArrayIndex]++, ReadXmlNode (mem.TypeData.ListItemTypeData, false), true);
 481                                                 else SetMemberValue (mem, ob, ReadXmlNode (mem.TypeData, false), isValueList);
 482                                         }
 483                                         else
 484                                                 ProcessUnknownElement(ob);
 485                                 }
 486                                 else if ((Reader.NodeType == System.Xml.XmlNodeType.Text || Reader.NodeType == System.Xml.XmlNodeType.CDATA) && map.XmlTextCollector != null)
 487                                 {
 488                                         if (map.XmlTextCollector is XmlTypeMapMemberExpandable)
 489                                         {
 490                                                 XmlTypeMapMemberExpandable mem = (XmlTypeMapMemberExpandable)map.XmlTextCollector;
 491                                                 XmlTypeMapMemberFlatList flatl = mem as XmlTypeMapMemberFlatList;
 492                                                 TypeData itype = (flatl == null) ? mem.TypeData.ListItemTypeData : flatl.ListMap.FindTextElement().TypeData;
 493
 494                                                 object val = (itype.Type == typeof (string)) ? (object) Reader.ReadString() : (object) ReadXmlNode (itype, false);
 495                                                 AddListValue (mem.TypeData, ref flatLists[mem.FlatArrayIndex], indexes[mem.FlatArrayIndex]++, val, true);
 496                                         }
 497                                         else
 498                                         {
 499                                                 XmlTypeMapMemberElement mem = (XmlTypeMapMemberElement) map.XmlTextCollector;
 500                                                 XmlTypeMapElementInfo info = (XmlTypeMapElementInfo) mem.ElementInfo [0];
 501                                                 if (info.TypeData.Type == typeof (string))
 502                                                         SetMemberValue (mem, ob, ReadString ((string) GetMemberValue (mem, ob, isValueList)), isValueList);
 503                                                 else
 504                                                         SetMemberValue (mem, ob, GetValueFromXmlString (Reader.ReadString(), info.TypeData, info.MappedType), isValueList);
 505                                         }
 506                                 }
 507                                 else
 508                                         UnknownNode(ob);
 509
 510                                 Reader.MoveToContent();
 511                         }
 512
 513                         if (flatLists != null)
 514                         {
 515                                 foreach (XmlTypeMapMemberExpandable mem in map.FlatLists)
 516                                 {
 517                                         Object list = flatLists[mem.FlatArrayIndex];
 518                                         if (mem.TypeData.Type.IsArray)
 519                                                 list = ShrinkArray ((Array)list, indexes[mem.FlatArrayIndex], mem.TypeData.Type.GetElementType(), true);
 520                                         if (!IsReadOnly (mem, mem.TypeData, ob, isValueList) && mem.TypeData.Type.IsArray)
 521                                                 SetMemberValue (mem, ob, list, isValueList);
 522                                 }
 523                         }
 524
 525                         if (flatListsChoices != null)
 526                         {
 527                                 foreach (XmlTypeMapMemberExpandable mem in map.FlatLists)
 528                                 {
 529                                         Object list = flatListsChoices[mem.FlatArrayIndex];
 530                                         if (list == null) continue;
 531                                         list = ShrinkArray ((Array)list, indexes[mem.FlatArrayIndex], mem.ChoiceTypeData.Type.GetElementType(), true);
 532                                         XmlTypeMapMember.SetValue (ob, mem.ChoiceMember, list);
 533                                 }
 534                         }
 535                         SetListMembersDefaults (map, ob, isValueList);
 536                 }
 537
 538                 void SetListMembersDefaults (ClassMap map, object ob, bool isValueList)
 539                 {
 540                         if (map.ListMembers != null)
 541                         {
 542                                 ArrayList members = map.ListMembers;
 543                                 for (int n=0; n<members.Count; n++) {
 544                                         XmlTypeMapMember mem = (XmlTypeMapMember) members[n];
 545                                         if (IsReadOnly (mem, mem.TypeData, ob, isValueList))
 546                                                 continue;
 547                                         if (GetMemberValue (mem, ob, isValueList) == null)
 548                                                 SetMemberValue (mem, ob, InitializeList (mem.TypeData), isValueList);
 549                                 }
 550                         }
 551                 }
 552
 553                 internal void FixupMembers (ClassMap map, object obfixup, bool isValueList)
 554                 {
 555                         Fixup fixup = (Fixup)obfixup;
 556                         ICollection members = map.ElementMembers;
 557                         string[] ids = fixup.Ids;
 558                         foreach (XmlTypeMapMember member in members)
 559                         {
 560                                 if (ids[member.Index] != null)
 561                                         SetMemberValue (member, fixup.Source, GetTarget(ids[member.Index]), isValueList);
 562                         }
 563                 }
 564
 565                 protected virtual void ProcessUnknownAttribute (object target)
 566                 {
 567                         UnknownNode (target);
 568                 }
 569
 570                 protected virtual void ProcessUnknownElement (object target)
 571                 {
 572                         UnknownNode (target);
 573                 }
 574
 575                 bool IsReadOnly (XmlTypeMapMember member, TypeData memType, object ob, bool isValueList)
 576                 {
 577                         if (isValueList) return !memType.HasPublicConstructor;
 578                         else return member.IsReadOnly (ob.GetType()) || !memType.HasPublicConstructor;
 579                 }
 580
 581                 void SetMemberValue (XmlTypeMapMember member, object ob, object value, bool isValueList)
 582                 {
 583                         if (isValueList) ((object[])ob)[member.GlobalIndex] = value;
 584                         else {
 585                                 member.SetValue (ob, value);
 586                                 if (member.IsOptionalValueType)
 587                                         member.SetValueSpecified (ob, true);
 588                         }
 589                 }
 590
 591                 void SetMemberValueFromAttr (XmlTypeMapMember member, object ob, object value, bool isValueList)
 592                 {
 593                         // Enumeration values specified in custom attributes are stored as integer
 594                         // values if the custom attribute property is of type object. So, it is
 595                         // necessary to convert to the enum type before asigning the value to the field.
 596
 597                         if (member.TypeData.Type.IsEnum)
 598                                 value = Enum.ToObject (member.TypeData.Type, value);
 599                         SetMemberValue (member, ob, value, isValueList);
 600                 }
 601
 602                 object GetMemberValue (XmlTypeMapMember member, object ob, bool isValueList)
 603                 {
 604                         if (isValueList) return ((object[])ob)[member.GlobalIndex];
 605                         else return member.GetValue (ob);
 606                 }
 607
 608                 object ReadObjectElement (XmlTypeMapElementInfo elem)
 609                 {
 610                         switch (elem.TypeData.SchemaType)
 611                         {
 612                                 case SchemaTypes.XmlNode:
 613                                         return ReadXmlNode (elem.TypeData, true);
 614
 615                                 case SchemaTypes.Primitive:
 616                                 case SchemaTypes.Enum:
 617                                         return ReadPrimitiveValue (elem);
 618
 619                                 case SchemaTypes.Array:
 620                                         return ReadListElement (elem.MappedType, elem.IsNullable, null, true);
 621
 622                                 case SchemaTypes.Class:
 623                                         return ReadObject (elem.MappedType, elem.IsNullable, true);
 624
 625                                 case SchemaTypes.XmlSerializable:
 626                                         object ob = Activator.CreateInstance (elem.TypeData.Type);
 627                                         return ReadSerializable ((IXmlSerializable)ob);
 628
 629                                 default:
 630                                         throw new NotSupportedException ("Invalid value type");
 631                         }
 632                 }
 633
 634                 object ReadPrimitiveValue (XmlTypeMapElementInfo elem)
 635                 {
 636                         if (elem.TypeData.Type == typeof (XmlQualifiedName)) {
 637                                 if (elem.IsNullable) return ReadNullableQualifiedName ();
 638                                 else return ReadElementQualifiedName ();
 639                         }
 640                         else if (elem.IsNullable)
 641                                 return GetValueFromXmlString (ReadNullableString (), elem.TypeData, elem.MappedType);
 642                         else
 643                                 return GetValueFromXmlString (Reader.ReadElementString (), elem.TypeData, elem.MappedType);
 644                 }
 645
 646                 object GetValueFromXmlString (string value, TypeData typeData, XmlTypeMapping typeMap)
 647                 {
 648                         if (typeData.SchemaType == SchemaTypes.Array)
 649                                 return ReadListString (typeMap, value);
 650                         else if (typeData.SchemaType == SchemaTypes.Enum)
 651                                 return GetEnumValue (typeMap, value);
 652                         else if (typeData.Type == typeof (XmlQualifiedName))
 653                                 return ToXmlQualifiedName (value);
 654                         else
 655                                 return XmlCustomFormatter.FromXmlString (typeData, value);
 656                 }
 657
 658                 object ReadListElement (XmlTypeMapping typeMap, bool isNullable, object list, bool canCreateInstance)
 659                 {
 660                         Type listType = typeMap.TypeData.Type;
 661                         ListMap listMap = (ListMap)typeMap.ObjectMap;
 662
 663                         if (listType.IsArray && ReadNull()) return null;
 664
 665                         if (list == null) {
 666                                 if (canCreateInstance && typeMap.TypeData.HasPublicConstructor) list = CreateList (listType);
 667                                 else throw CreateReadOnlyCollectionException (typeMap.TypeFullName);
 668                         }
 669
 670                         if (Reader.IsEmptyElement) {
 671                                 Reader.Skip();
 672                                 if (listType.IsArray)
 673                                         list = ShrinkArray ((Array)list, 0, listType.GetElementType(), false);
 674                                 return list;
 675                         }
 676
 677                         int index = 0;
 678                         Reader.ReadStartElement();
 679                         Reader.MoveToContent();
 680
 681                         while (Reader.NodeType != System.Xml.XmlNodeType.EndElement)
 682                         {
 683                                 if (Reader.NodeType == System.Xml.XmlNodeType.Element)
 684                                 {
 685                                         XmlTypeMapElementInfo elemInfo = listMap.FindElement (Reader.LocalName, Reader.NamespaceURI);
 686                                         if (elemInfo != null)
 687                                                 AddListValue (typeMap.TypeData, ref list, index++, ReadObjectElement (elemInfo), false);
 688                                         else
 689                                                 UnknownNode(null);
 690                                 }
 691                                 else
 692                                         UnknownNode(null);
 693
 694                                 Reader.MoveToContent();
 695                         }
 696                         ReadEndElement();
 697
 698                         if (listType.IsArray)
 699                                 list = ShrinkArray ((Array)list, index, listType.GetElementType(), false);
 700
 701                         return list;
 702                 }
 703
 704                 object ReadListString (XmlTypeMapping typeMap, string values)
 705                 {
 706                         Type listType = typeMap.TypeData.Type;
 707                         ListMap listMap = (ListMap)typeMap.ObjectMap;
 708                         values = values.Trim ();
 709
 710                         if (values == string.Empty)
 711                         {
 712                                 return Array.CreateInstance (listType.GetElementType(), 0);
 713                         }
 714
 715                         string[] valueArray = values.Split (' ');
 716                         Array list = Array.CreateInstance (listType.GetElementType(), valueArray.Length);
 717
 718                         XmlTypeMapElementInfo info = (XmlTypeMapElementInfo)listMap.ItemInfo[0];
 719
 720                         for (int index = 0; index < valueArray.Length; index++)
 721                                 list.SetValue (GetValueFromXmlString (valueArray[index], info.TypeData, info.MappedType), index);
 722
 723                         return list;
 724                 }
 725
 726                 void AddListValue (TypeData listType, ref object list, int index, object value, bool canCreateInstance)
 727                 {
 728                         Type type = listType.Type;
 729                         if (type.IsArray)
 730                         {
 731                                 list = EnsureArrayIndex ((Array)list, index, type.GetElementType());
 732                                 ((Array)list).SetValue (value, index);
 733                         }
 734                         else    // Must be IEnumerable
 735                         {
 736                                 if (list == null) {
 737                                         if (canCreateInstance) list = Activator.CreateInstance (type);
 738                                         else throw CreateReadOnlyCollectionException (type.FullName);
 739                                 }
 740
 741                                 MethodInfo mi = type.GetMethod ("Add", new Type[] {listType.ListItemType} );
 742                                 mi.Invoke (list, new object[] { value });
 743                         }
 744                 }
 745
 746                 object CreateInstance (Type type)
 747                 {
 748                         return Activator.CreateInstance (type, empty_array);
 749                 }
 750
 751                 object CreateList (Type listType)
 752                 {
 753                         if (listType.IsArray)
 754                                 return EnsureArrayIndex (null, 0, listType.GetElementType());
 755                         else
 756                                 return Activator.CreateInstance (listType);
 757                 }
 758
 759                 object InitializeList (TypeData listType)
 760                 {
 761                         if (listType.Type.IsArray)
 762                                 return null;
 763                         else
 764                                 return Activator.CreateInstance (listType.Type);
 765                 }
 766
 767                 void FillList (object list, object items)
 768                 {
 769                         CopyEnumerableList (items, list);
 770                 }
 771
 772                 void CopyEnumerableList (object source, object dest)
 773                 {
 774                         if (dest == null) throw CreateReadOnlyCollectionException (source.GetType().FullName);
 775
 776                         object[] param = new object[1];
 777                         MethodInfo mi = dest.GetType().GetMethod ("Add");
 778                         foreach (object ob in (IEnumerable)source)
 779                         {
 780                                 param[0] = ob;
 781                                 mi.Invoke (dest, param);
 782                         }
 783                 }
 784
 785                 object ReadXmlNodeElement (XmlTypeMapping typeMap, bool isNullable)
 786                 {
 787                         return ReadXmlNode (typeMap.TypeData, false);
 788                 }
 789
 790                 object ReadXmlNode (TypeData type, bool wrapped)
 791                 {
 792                         if (type.Type == typeof (XmlDocument))
 793                                 return ReadXmlDocument (wrapped);
 794                         else
 795                                 return ReadXmlNode (wrapped);
 796                 }
 797
 798                 object ReadPrimitiveElement (XmlTypeMapping typeMap, bool isNullable)
 799                 {
 800                         XmlQualifiedName t = GetXsiType();
 801                         if (t == null) t = new XmlQualifiedName (typeMap.XmlType, typeMap.Namespace);
 802                         return ReadTypedPrimitive (t);
 803                 }
 804
 805                 object ReadEnumElement (XmlTypeMapping typeMap, bool isNullable)
 806                 {
 807                         Reader.ReadStartElement ();
 808                         object o = GetEnumValue (typeMap, Reader.ReadString());
 809                         ReadEndElement ();
 810                         return o;
 811                 }
 812
 813                 object GetEnumValue (XmlTypeMapping typeMap, string val)
 814                 {
 815                         EnumMap map = (EnumMap) typeMap.ObjectMap;
 816                         string ev = map.GetEnumName (typeMap.TypeFullName, val);
 817                         if (ev == null) throw CreateUnknownConstantException (val, typeMap.TypeData.Type);
 818                         return Enum.Parse (typeMap.TypeData.Type, ev);
 819                 }
 820
 821                 object ReadXmlSerializableElement (XmlTypeMapping typeMap, bool isNullable)
 822                 {
 823                         Reader.MoveToContent ();
 824                         if (Reader.NodeType == XmlNodeType.Element)
 825                         {
 826                                 if (Reader.LocalName == typeMap.ElementName && Reader.NamespaceURI == typeMap.Namespace)
 827                                 {
 828                                         object ob = Activator.CreateInstance (typeMap.TypeData.Type);
 829                                         return ReadSerializable ((IXmlSerializable)ob);
 830                                 }
 831                                 else
 832                                         throw CreateUnknownNodeException ();
 833                         }
 834                         else
 835                         {
 836                                 UnknownNode (null);
 837                                 return null;
 838                         }
 839                 }
 840
 841                 class FixupCallbackInfo
 842                 {
 843                         XmlSerializationReaderInterpreter _sri;
 844                         ClassMap _map;
 845                         bool _isValueList;
 846
 847                         public FixupCallbackInfo (XmlSerializationReaderInterpreter sri, ClassMap map, bool isValueList)
 848                         {
 849                                 _sri = sri;
 850                                 _map = map;
 851                                 _isValueList = isValueList;
 852                         }
 853
 854                         public void FixupMembers (object fixup)
 855                         {
 856                                 _sri.FixupMembers (_map, fixup, _isValueList);
 857                         }
 858                 }
 859
 860                 class ReaderCallbackInfo
 861                 {
 862                         XmlSerializationReaderInterpreter _sri;
 863                         XmlTypeMapping _typeMap;
 864
 865                         public ReaderCallbackInfo (XmlSerializationReaderInterpreter sri, XmlTypeMapping typeMap)
 866                         {
 867                                 _sri = sri;
 868                                 _typeMap = typeMap;
 869                         }
 870
 871                         internal object ReadObject ()
 872                         {
 873                                 return _sri.ReadObject (_typeMap, true, true);
 874                         }
 875                 }
 876         }
 877 }