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

   1 //
   2 // XmlTypeMapping.cs:
   3 //
   4 // Author:
   5 //   John Donagher (john@webmeta.com)
   6 //   Lluis Sanchez Gual (lluis@ximian.com)
   7 //
   8 // (C) 2002 John Donagher
   9 //
  10
  11 //
  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:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  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.
  30 //
  31
  32 using System.Xml;
  33 using System;
  34 using System.Collections;
  35 using System.Globalization;
  36 using System.Xml.Schema;
  37 using System.Reflection;
  38
  39 namespace System.Xml.Serialization
  40 {
  41         public class XmlTypeMapping : XmlMapping
  42         {
  43                 private string xmlType;
  44                 private string xmlTypeNamespace;
  45                 TypeData type;
  46                 XmlTypeMapping baseMap;
  47                 bool multiReferenceType = false;
  48                 bool isSimpleType;
  49                 string documentation;
  50                 bool includeInSchema;
  51                 bool isNullable = true;
  52
  53                 ArrayList _derivedTypes = new ArrayList();
  54
  55                 internal XmlTypeMapping(string elementName, string ns, TypeData typeData, string xmlType, string xmlTypeNamespace)
  56                 : base (elementName, ns)
  57                 {
  58                         this.type = typeData;
  59                         this.xmlType = xmlType;
  60                         this.xmlTypeNamespace = xmlTypeNamespace;
  61                 }
  62
  63 #if !NET_2_0
  64                 public string ElementName
  65                 {
  66                         get { return _elementName; }
  67                 }
  68
  69                 public string Namespace
  70                 {
  71                         get { return _namespace; }
  72                 }
  73 #endif
  74
  75                 public string TypeFullName
  76                 {
  77                         get { return type.FullTypeName; }
  78                 }
  79
  80                 public string TypeName
  81                 {
  82                         get { return type.TypeName; }
  83                 }
  84
  85 #if NET_2_0
  86                 public string XsdTypeName
  87                 {
  88                         get { return XmlType; }
  89                 }
  90
  91                 public string XsdTypeNamespace
  92                 {
  93                         get { return XmlTypeNamespace; }
  94                 }
  95 #endif
  96
  97                 internal TypeData TypeData
  98                 {
  99                         get { return type; }
 100                 }
 101
 102                 internal string XmlType
 103                 {
 104                         get { return xmlType; }
 105                         set { xmlType = value; }
 106                 }
 107
 108                 internal string XmlTypeNamespace
 109                 {
 110                         get { return xmlTypeNamespace ?? string.Empty; }
 111                         set { xmlTypeNamespace = value; }
 112                 }
 113
 114                 internal bool HasXmlTypeNamespace
 115                 {
 116                         get { return xmlTypeNamespace != null; }
 117                 }
 118
 119                 internal ArrayList DerivedTypes
 120                 {
 121                         get { return _derivedTypes; }
 122                         set { _derivedTypes = value; }
 123                 }
 124
 125                 internal bool MultiReferenceType
 126                 {
 127                         get { return multiReferenceType; }
 128                         set { multiReferenceType = value; }
 129                 }
 130
 131                 internal XmlTypeMapping BaseMap
 132                 {
 133                         get { return baseMap; }
 134                         set { baseMap = value; }
 135                 }
 136
 137                 internal bool IsSimpleType
 138                 {
 139                         get { return isSimpleType; }
 140                         set { isSimpleType = value; }
 141                 }
 142
 143                 internal string Documentation
 144                 {
 145                         set { documentation = value; }
 146                         get { return documentation; }
 147                 }
 148
 149                 internal bool IncludeInSchema
 150                 {
 151                         get { return includeInSchema; }
 152                         set { includeInSchema = value; }
 153                 }
 154
 155                 internal bool IsNullable
 156                 {
 157                         get { return isNullable; }
 158                         set { isNullable = value; }
 159                 }
 160
 161                 internal XmlTypeMapping GetRealTypeMap (Type objectType)
 162                 {
 163                         if (TypeData.SchemaType == SchemaTypes.Enum)
 164                                 return this;
 165
 166                         // Returns the map for a subtype of this map's type
 167                         if (TypeData.Type == objectType) return this;
 168                         for (int n=0; n<_derivedTypes.Count; n++) {
 169                                 XmlTypeMapping map = (XmlTypeMapping) _derivedTypes[n];
 170                                 if (map.TypeData.Type == objectType) return map;
 171                         }
 172
 173                         return null;
 174                 }
 175
 176                 internal XmlTypeMapping GetRealElementMap (string name, string ens)
 177                 {
 178                         if (xmlType == name && XmlTypeNamespace == ens) return this;
 179                         foreach (XmlTypeMapping map in _derivedTypes)
 180                                 if (map.xmlType == name && map.XmlTypeNamespace == ens) return map;
 181
 182                         return null;
 183                 }
 184
 185                 internal void UpdateRoot (XmlQualifiedName qname)
 186                 {
 187                         if (qname != null) {
 188                                 this._elementName = qname.Name;
 189                                 this._namespace = qname.Namespace;
 190                         }
 191                 }
 192         }
 193
 194
 195         // Mapping info for XmlSerializable
 196         internal class XmlSerializableMapping : XmlTypeMapping
 197         {
 198                 XmlSchema _schema;
 199 #if NET_2_0 && !MOONLIGHT
 200                 XmlSchemaComplexType _schemaType;
 201                 XmlQualifiedName _schemaTypeName;
 202 #endif
 203
 204                 internal XmlSerializableMapping(XmlRootAttribute root, string elementName, string ns, TypeData typeData, string xmlType, string xmlTypeNamespace)
 205                         : base(elementName, ns, typeData, xmlType, xmlTypeNamespace)
 206                 {
 207 #if NET_2_0 && !MOONLIGHT
 208                         XmlSchemaProviderAttribute schemaProvider = (XmlSchemaProviderAttribute) Attribute.GetCustomAttribute (typeData.Type, typeof (XmlSchemaProviderAttribute));
 209
 210                         if (schemaProvider != null) {
 211                                 string method = schemaProvider.MethodName;
 212                                 MethodInfo mi = typeData.Type.GetMethod (method, BindingFlags.Static | BindingFlags.Public | BindingFlags.FlattenHierarchy);
 213                                 if (mi == null)
 214                                         throw new InvalidOperationException (String.Format ("Type '{0}' must implement public static method '{1}'", typeData.Type, method));
 215                                 if (!typeof (XmlQualifiedName).IsAssignableFrom (mi.ReturnType) &&
 216                                     // LAMESPEC: it is undocumented. (We don't have to tell users about it in the error message.)
 217                                     // Also do not add such a silly compatibility test to assert that it does not raise an error.
 218                                     !typeof (XmlSchemaComplexType).IsAssignableFrom (mi.ReturnType))
 219                                         throw new InvalidOperationException (String.Format ("Method '{0}' indicated by XmlSchemaProviderAttribute must have its return type as XmlQualifiedName", method));
 220                                 XmlSchemaSet xs = new XmlSchemaSet ();
 221                                 object retVal = mi.Invoke (null, new object [] { xs });
 222                                 _schemaTypeName = XmlQualifiedName.Empty;
 223                                 if (retVal == null)
 224                                         return;
 225
 226                                 if (retVal is XmlSchemaComplexType) {
 227                                         _schemaType = (XmlSchemaComplexType) retVal;
 228                                         if (!_schemaType.QualifiedName.IsEmpty)
 229                                                 _schemaTypeName = _schemaType.QualifiedName;
 230                                         else
 231                                                 _schemaTypeName = new XmlQualifiedName (xmlType, xmlTypeNamespace);
 232                                 }
 233                                 else if (retVal is XmlQualifiedName) {
 234                                         _schemaTypeName = (XmlQualifiedName)retVal;
 235                                 }
 236                                 else
 237                                         throw new InvalidOperationException (
 238                                                 String.Format ("Method {0}.{1}() specified by XmlSchemaProviderAttribute has invalid signature: return type must be compatible with System.Xml.XmlQualifiedName.", typeData.Type.Name, method));
 239
 240                                 // defaultNamespace at XmlReflectionImporter takes precedence for Namespace, but not for XsdTypeNamespace.
 241                                 UpdateRoot (new XmlQualifiedName (root != null ? root.ElementName : _schemaTypeName.Name, root != null ? root.Namespace : Namespace ?? _schemaTypeName.Namespace));
 242                                 XmlTypeNamespace = _schemaTypeName.Namespace;
 243                                 XmlType = _schemaTypeName.Name;
 244
 245                                 if (!_schemaTypeName.IsEmpty && xs.Count > 0) {
 246                                         XmlSchema [] schemas = new XmlSchema [xs.Count];
 247                                         xs.CopyTo (schemas, 0);
 248                                         _schema = schemas [0];
 249                                 }
 250
 251                                 return;
 252                         }
 253 #endif
 254 #if NET_2_0 && !MOONLIGHT
 255                         IXmlSerializable serializable = (IXmlSerializable)Activator.CreateInstance (typeData.Type, true);
 256                         try {
 257                                 _schema = serializable.GetSchema();
 258                         } catch (Exception) {
 259                                 // LAMESPEC: .NET has a bad exception catch and swallows it silently.
 260                         }
 261 #else
 262                         IXmlSerializable serializable = (IXmlSerializable)Activator.CreateInstance (typeData.Type);
 263                         _schema = serializable.GetSchema();
 264 #endif
 265 #if !MOONLIGHT
 266                         if (_schema != null)
 267                         {
 268                                 if (_schema.Id == null || _schema.Id.Length == 0)
 269                                         throw new InvalidOperationException("Schema Id is missing. The schema returned from " + typeData.Type.FullName + ".GetSchema() must have an Id.");
 270                         }
 271 #endif
 272                 }
 273
 274                 internal XmlSchema Schema
 275                 {
 276                         get { return _schema; }
 277                 }
 278
 279 #if NET_2_0 && !MOONLIGHT
 280                 internal XmlSchemaType SchemaType {
 281                         get { return _schemaType; }
 282                 }
 283
 284                 internal XmlQualifiedName SchemaTypeName {
 285                         get { return _schemaTypeName; }
 286                 }
 287 #endif
 288         }
 289
 290
 291         // Mapping info for classes and structs
 292
 293         internal class ClassMap: ObjectMap
 294         {
 295                 Hashtable _elements = new Hashtable ();
 296                 ArrayList _elementMembers;
 297                 Hashtable _attributeMembers;
 298                 XmlTypeMapMemberAttribute[] _attributeMembersArray;
 299                 XmlTypeMapElementInfo[] _elementsByIndex;
 300                 ArrayList _flatLists;
 301                 ArrayList _allMembers = new ArrayList ();
 302                 ArrayList _membersWithDefault;
 303                 ArrayList _listMembers;
 304                 XmlTypeMapMemberAnyElement _defaultAnyElement;
 305                 XmlTypeMapMemberAnyAttribute _defaultAnyAttribute;
 306                 XmlTypeMapMemberNamespaces _namespaceDeclarations;
 307                 XmlTypeMapMember _xmlTextCollector;
 308                 XmlTypeMapMember _returnMember;
 309                 bool _ignoreMemberNamespace;
 310                 bool _canBeSimpleType = true;
 311                 bool? _isOrderDependentMap;
 312
 313                 public void AddMember (XmlTypeMapMember member)
 314                 {
 315                         // If GlobalIndex has not been set, set it now
 316                         if (member.GlobalIndex == -1)
 317                                 member.GlobalIndex = _allMembers.Count;
 318
 319                         _allMembers.Add (member);
 320
 321                         if (!(member.DefaultValue is System.DBNull) && member.DefaultValue != null) {
 322                                 if (_membersWithDefault == null) _membersWithDefault = new ArrayList ();
 323                                 _membersWithDefault.Add (member);
 324                         }
 325
 326                         if (member.IsReturnValue)
 327                                 _returnMember = member;
 328
 329                         if (member is XmlTypeMapMemberAttribute)
 330                         {
 331                                 XmlTypeMapMemberAttribute atm = (XmlTypeMapMemberAttribute)member;
 332                                 if (_attributeMembers == null) _attributeMembers = new Hashtable();
 333                                 string key = BuildKey (atm.AttributeName, atm.Namespace, -1);
 334                                 if (_attributeMembers.ContainsKey (key))
 335                                         throw new InvalidOperationException ("The XML attribute named '" + atm.AttributeName + "' from namespace '" + atm.Namespace + "' is already present in the current scope. Use XML attributes to specify another XML name or namespace for the attribute.");
 336                                 member.Index = _attributeMembers.Count;
 337                                 _attributeMembers.Add (key, member);
 338                                 return;
 339                         }
 340                         else if (member is XmlTypeMapMemberFlatList)
 341                         {
 342                                 RegisterFlatList ((XmlTypeMapMemberFlatList)member);
 343                         }
 344                         else if (member is XmlTypeMapMemberAnyElement)
 345                         {
 346                                 XmlTypeMapMemberAnyElement mem = (XmlTypeMapMemberAnyElement) member;
 347                                 if (mem.IsDefaultAny) _defaultAnyElement = mem;
 348                                 if (mem.TypeData.IsListType) RegisterFlatList (mem);
 349                         }
 350                         else if (member is XmlTypeMapMemberAnyAttribute)
 351                         {
 352                                 _defaultAnyAttribute = (XmlTypeMapMemberAnyAttribute) member;
 353                                 return;
 354                         }
 355                         else if (member is XmlTypeMapMemberNamespaces)
 356                         {
 357                                 _namespaceDeclarations = (XmlTypeMapMemberNamespaces) member;
 358                                 return;
 359                         }
 360
 361                         if (member is XmlTypeMapMemberElement && ((XmlTypeMapMemberElement)member).IsXmlTextCollector)
 362                         {
 363                                 if (_xmlTextCollector != null) throw new InvalidOperationException ("XmlTextAttribute can only be applied once in a class");
 364                                 _xmlTextCollector = member;
 365                         }
 366
 367                         if (_elementMembers == null) {
 368                                 _elementMembers = new ArrayList();
 369                                 _elements = new Hashtable();
 370                         }
 371
 372                         member.Index = _elementMembers.Count;
 373                         _elementMembers.Add (member);
 374
 375                         ICollection elemsInfo = ((XmlTypeMapMemberElement)member).ElementInfo;
 376                         foreach (XmlTypeMapElementInfo elem in elemsInfo)
 377                         {
 378                                 string key = BuildKey (elem.ElementName, elem.Namespace, elem.ExplicitOrder);
 379                                 if (_elements.ContainsKey (key))
 380                                         throw new InvalidOperationException ("The XML element named '" + elem.ElementName + "' from namespace '" + elem.Namespace + "' is already present in the current scope. Use XML attributes to specify another XML name or namespace for the element.");
 381                                 _elements.Add (key, elem);
 382                         }
 383
 384                         if (member.TypeData.IsListType && member.TypeData.Type != null && !member.TypeData.Type.IsArray) {
 385                                 if (_listMembers == null) _listMembers = new ArrayList ();
 386                                 _listMembers.Add (member);
 387                         }
 388                 }
 389
 390                 void RegisterFlatList (XmlTypeMapMemberExpandable member)
 391                 {
 392                         if (_flatLists == null) _flatLists = new ArrayList ();
 393                         member.FlatArrayIndex = _flatLists.Count;
 394                         _flatLists.Add (member);
 395                 }
 396
 397                 public XmlTypeMapMemberAttribute GetAttribute (string name, string ns)
 398                 {
 399                         if (_attributeMembers == null) return null;
 400                         return (XmlTypeMapMemberAttribute)_attributeMembers [BuildKey (name,ns, -1)];
 401                 }
 402
 403                 public XmlTypeMapElementInfo GetElement (string name, string ns, int order)
 404                 {
 405                         if (_elements == null) return null;
 406                         return (XmlTypeMapElementInfo)_elements [BuildKey (name,ns, order)];
 407                 }
 408
 409                 public XmlTypeMapElementInfo GetElement(string name, string ns)
 410                 {
 411                         if (_elements == null) return null;
 412
 413                         foreach (XmlTypeMapElementInfo info in _elements.Values)
 414                                 if (info.ElementName == name && info.Namespace == ns)
 415                                         return info;
 416
 417                         return null;
 418                 }
 419
 420                 public XmlTypeMapElementInfo GetElement (int index)
 421                 {
 422                         if (_elements == null) return null;
 423
 424                         if (_elementsByIndex == null)
 425                         {
 426                                 _elementsByIndex = new XmlTypeMapElementInfo [_elementMembers.Count];
 427                                 foreach (XmlTypeMapMemberElement mem in _elementMembers)
 428                                 {
 429                                         if (mem.ElementInfo.Count != 1)
 430                                                 throw new InvalidOperationException ("Read by order only possible for encoded/bare format");
 431
 432                                         _elementsByIndex [mem.Index] = (XmlTypeMapElementInfo) mem.ElementInfo [0];
 433                                 }
 434                         }
 435                         if (index >= _elementMembers.Count)
 436                                 return null;
 437                         return _elementsByIndex [index];
 438                 }
 439
 440                 private string BuildKey (string name, string ns, int explicitOrder)
 441                 {
 442                         if (_ignoreMemberNamespace) return name;
 443                         else return name + " / " + ns + (explicitOrder < 0 ? "" : "/" + explicitOrder);
 444                 }
 445
 446                 public ICollection AllElementInfos
 447                 {
 448                         get { return _elements.Values; }
 449                 }
 450
 451
 452                 public bool IgnoreMemberNamespace
 453                 {
 454                         get { return _ignoreMemberNamespace; }
 455                         set { _ignoreMemberNamespace = value; }
 456                 }
 457
 458                 public bool IsOrderDependentMap {
 459                         get {
 460                                 if (_isOrderDependentMap == null) {
 461                                         _isOrderDependentMap = false;
 462                                         foreach (XmlTypeMapElementInfo ei in _elements.Values)
 463                                                 if (ei.ExplicitOrder >= 0) {
 464                                                         _isOrderDependentMap = true;
 465                                                         break;
 466                                                 }
 467                                 }
 468                                 return (bool) _isOrderDependentMap;
 469                         }
 470                 }
 471
 472                 public XmlTypeMapMember FindMember (string name)
 473                 {
 474                         for (int n=0; n<_allMembers.Count; n++)
 475                                 if (((XmlTypeMapMember)_allMembers[n]).Name == name) return (XmlTypeMapMember)_allMembers[n];
 476                         return null;
 477                 }
 478
 479                 public XmlTypeMapMemberAnyElement DefaultAnyElementMember
 480                 {
 481                         get { return _defaultAnyElement; }
 482                 }
 483
 484                 public XmlTypeMapMemberAnyAttribute DefaultAnyAttributeMember
 485                 {
 486                         get { return _defaultAnyAttribute; }
 487                 }
 488
 489                 public XmlTypeMapMemberNamespaces NamespaceDeclarations
 490                 {
 491                         get { return _namespaceDeclarations; }
 492                 }
 493
 494                 public ICollection AttributeMembers
 495                 {
 496                         get
 497                         {
 498                                 if (_attributeMembers == null) return null;
 499                                 if (_attributeMembersArray != null) return _attributeMembersArray;
 500
 501                                 _attributeMembersArray = new XmlTypeMapMemberAttribute[_attributeMembers.Count];
 502                                 foreach (XmlTypeMapMemberAttribute mem in _attributeMembers.Values)
 503                                         _attributeMembersArray [mem.Index] = mem;
 504                                 return _attributeMembersArray;
 505                         }
 506                 }
 507
 508                 public ICollection ElementMembers
 509                 {
 510                         get { return _elementMembers; }
 511                 }
 512
 513                 public ArrayList AllMembers
 514                 {
 515                         get { return _allMembers; }
 516                 }
 517
 518                 public ArrayList FlatLists
 519                 {
 520                         get { return _flatLists; }
 521                 }
 522
 523                 public ArrayList MembersWithDefault
 524                 {
 525                         get { return _membersWithDefault; }
 526                 }
 527
 528                 public ArrayList ListMembers
 529                 {
 530                         get { return _listMembers; }
 531                 }
 532
 533                 public XmlTypeMapMember XmlTextCollector
 534                 {
 535                         get { return _xmlTextCollector; }
 536                 }
 537
 538                 public XmlTypeMapMember ReturnMember
 539                 {
 540                         get { return _returnMember; }
 541                 }
 542
 543                 public XmlQualifiedName SimpleContentBaseType
 544                 {
 545                         get
 546                         {
 547                                 if (!_canBeSimpleType || _elementMembers == null || _elementMembers.Count != 1) return null;
 548                                 XmlTypeMapMemberElement member = (XmlTypeMapMemberElement) _elementMembers[0];
 549                                 if (member.ElementInfo.Count != 1) return null;
 550                                 XmlTypeMapElementInfo einfo = (XmlTypeMapElementInfo) member.ElementInfo[0];
 551                                 if (!einfo.IsTextElement) return null;
 552                                 if (member.TypeData.SchemaType == SchemaTypes.Primitive || member.TypeData.SchemaType == SchemaTypes.Enum)
 553                                         return new XmlQualifiedName (einfo.TypeData.XmlType, einfo.DataTypeNamespace);
 554                                 return null;
 555                         }
 556                 }
 557
 558                 public void SetCanBeSimpleType (bool can)
 559                 {
 560                         _canBeSimpleType = can;
 561                 }
 562
 563                 public bool HasSimpleContent
 564                 {
 565                         get
 566                         {
 567                                 return SimpleContentBaseType != null;
 568                         }
 569                 }
 570
 571         }
 572
 573         // Mapping info for arrays and lists
 574
 575         internal class ListMap: ObjectMap
 576         {
 577                 XmlTypeMapElementInfoList _itemInfo;
 578                 bool _gotNestedMapping;
 579                 XmlTypeMapping _nestedArrayMapping;
 580                 string _choiceMember;
 581
 582                 public bool IsMultiArray
 583                 {
 584                         get
 585                         {
 586                                 return (NestedArrayMapping != null);
 587                         }
 588                 }
 589
 590                 public string ChoiceMember
 591                 {
 592                         get { return _choiceMember; }
 593                         set { _choiceMember = value; }
 594                 }
 595
 596                 public XmlTypeMapping NestedArrayMapping
 597                 {
 598                         get
 599                         {
 600                                 if (_gotNestedMapping) return _nestedArrayMapping;
 601                                 _gotNestedMapping = true;
 602
 603                                 _nestedArrayMapping = ((XmlTypeMapElementInfo)_itemInfo[0]).MappedType;
 604
 605                                 if (_nestedArrayMapping == null) return null;
 606
 607                                 if (_nestedArrayMapping.TypeData.SchemaType != SchemaTypes.Array) {
 608                                         _nestedArrayMapping = null; return null;
 609                                 }
 610
 611                                 foreach (XmlTypeMapElementInfo elem in _itemInfo)
 612                                         if (elem.MappedType != _nestedArrayMapping) {
 613                                                 _nestedArrayMapping = null;
 614                                                 return null;
 615                                         }
 616
 617                                 return _nestedArrayMapping;
 618                         }
 619                 }
 620
 621                 public XmlTypeMapElementInfoList ItemInfo
 622                 {
 623
 624                         get { return _itemInfo; }
 625                         set { _itemInfo = value; }
 626                 }
 627
 628                 public XmlTypeMapElementInfo FindElement (object ob, int index, object memberValue)
 629                 {
 630                         if (_itemInfo.Count == 1)
 631                                 return (XmlTypeMapElementInfo) _itemInfo[0];
 632                         else if (_choiceMember != null && index != -1)
 633                         {
 634                                 Array values = (Array) XmlTypeMapMember.GetValue (ob, _choiceMember);
 635                                 if (values == null || index >= values.Length)
 636                                         throw new InvalidOperationException ("Invalid or missing choice enum value in member '" + _choiceMember + "'.");
 637                                 object val = values.GetValue (index);
 638                                 foreach (XmlTypeMapElementInfo elem in _itemInfo)
 639                                         if (elem.ChoiceValue != null && elem.ChoiceValue.Equals (val))
 640                                                 return elem;
 641                         }
 642                         else
 643                         {
 644                                 if (memberValue == null) return null;
 645                                 Type type = memberValue.GetType();
 646                                 foreach (XmlTypeMapElementInfo elem in _itemInfo)
 647                                         if (elem.TypeData.Type == type) return elem;
 648                         }
 649                         return null;
 650                 }
 651
 652                 public XmlTypeMapElementInfo FindElement (string elementName, string ns)
 653                 {
 654                         foreach (XmlTypeMapElementInfo elem in _itemInfo)
 655                                 if (elem.ElementName == elementName && elem.Namespace == ns) return elem;
 656                         return null;
 657                 }
 658
 659                 public XmlTypeMapElementInfo FindTextElement ()
 660                 {
 661                         foreach (XmlTypeMapElementInfo elem in _itemInfo)
 662                                 if (elem.IsTextElement) return elem;
 663                         return null;
 664                 }
 665
 666                 public string GetSchemaArrayName ()
 667                 {
 668                         XmlTypeMapElementInfo einfo = (XmlTypeMapElementInfo) _itemInfo[0];
 669                         if (einfo.MappedType != null) return TypeTranslator.GetArrayName (einfo.MappedType.XmlType);
 670                         else return TypeTranslator.GetArrayName (einfo.TypeData.XmlType);
 671                 }
 672
 673                 public void GetArrayType (int itemCount, out string localName, out string ns)
 674                 {
 675                         string arrayDim;
 676                         if (itemCount != -1) arrayDim = "[" + itemCount + "]";
 677                         else arrayDim = "[]";
 678
 679                         XmlTypeMapElementInfo info = (XmlTypeMapElementInfo) _itemInfo[0];
 680                         if (info.TypeData.SchemaType == SchemaTypes.Array)
 681                         {
 682                                 string nm;
 683                                 ((ListMap)info.MappedType.ObjectMap).GetArrayType (-1, out nm, out ns);
 684                                 localName = nm + arrayDim;
 685                         }
 686                         else
 687                         {
 688                                 if (info.MappedType != null)
 689                                 {
 690                                         localName = info.MappedType.XmlType + arrayDim;
 691                                         ns = info.MappedType.Namespace;
 692                                 }
 693                                 else
 694                                 {
 695                                         localName = info.TypeData.XmlType + arrayDim;
 696                                         ns = info.DataTypeNamespace;
 697                                 }
 698                         }
 699                 }
 700
 701                 public override bool Equals (object other)
 702                 {
 703                         ListMap lmap = other as ListMap;
 704                         if (lmap == null) return false;
 705
 706                         if (_itemInfo.Count != lmap._itemInfo.Count) return false;
 707                         for (int n=0; n<_itemInfo.Count; n++)
 708                                 if (!_itemInfo[n].Equals (lmap._itemInfo[n])) return false;
 709                         return true;
 710                 }
 711
 712                 public override int GetHashCode ()
 713                 {
 714                         return base.GetHashCode ();
 715                 }
 716         }
 717
 718         internal class EnumMap: ObjectMap
 719         {
 720                 readonly EnumMapMember[] _members;
 721                 readonly bool _isFlags;
 722                 readonly string[] _enumNames = null;
 723                 readonly string[] _xmlNames = null;
 724                 readonly long[] _values = null;
 725
 726                 public class EnumMapMember
 727                 {
 728                         readonly string _xmlName;
 729                         readonly string _enumName;
 730                         readonly long _value;
 731                         string _documentation;
 732
 733                         public EnumMapMember (string xmlName, string enumName)
 734                                 : this (xmlName, enumName, 0)
 735                         {
 736                         }
 737
 738                         public EnumMapMember (string xmlName, string enumName, long value)
 739                         {
 740                                 _xmlName = xmlName;
 741                                 _enumName = enumName;
 742                                 _value = value;
 743                         }
 744
 745                         public string XmlName
 746                         {
 747                                 get { return _xmlName; }
 748                         }
 749
 750                         public string EnumName
 751                         {
 752                                 get { return _enumName; }
 753                         }
 754
 755                         public long Value
 756                         {
 757                                 get { return _value; }
 758                         }
 759
 760                         public string Documentation
 761                         {
 762                                 get { return _documentation; }
 763                                 set { _documentation = value; }
 764                         }
 765                 }
 766
 767                 public EnumMap (EnumMapMember[] members, bool isFlags)
 768                 {
 769                         _members = members;
 770                         _isFlags = isFlags;
 771
 772                         _enumNames = new string[_members.Length];
 773                         _xmlNames = new string[_members.Length];
 774                         _values = new long[_members.Length];
 775
 776                         for (int i = 0; i < _members.Length; i++) {
 777                                 EnumMapMember mem = _members[i];
 778                                 _enumNames[i] = mem.EnumName;
 779                                 _xmlNames[i] = mem.XmlName;
 780                                 _values[i] = mem.Value;
 781                         }
 782                 }
 783
 784                 public bool IsFlags
 785                 {
 786                         get { return _isFlags; }
 787                 }
 788
 789                 public EnumMapMember[] Members
 790                 {
 791                         get { return _members; }
 792                 }
 793
 794                 public string[] EnumNames
 795                 {
 796                         get {
 797                                 return _enumNames;
 798                         }
 799                 }
 800
 801                 public string[] XmlNames
 802                 {
 803                         get {
 804                                 return _xmlNames;
 805                         }
 806                 }
 807
 808                 public long[] Values
 809                 {
 810                         get {
 811                                 return _values;
 812                         }
 813                 }
 814
 815                 public string GetXmlName (string typeName, object enumValue)
 816                 {
 817                         if (enumValue is string) {
 818                                 throw new InvalidCastException ();
 819                         }
 820
 821                         long value = 0;
 822
 823                         try {
 824                                 value = ((IConvertible) enumValue).ToInt64 (CultureInfo.CurrentCulture);
 825                         } catch (FormatException) {
 826                                 throw new InvalidCastException ();
 827                         }
 828
 829                         for (int i = 0; i < Values.Length; i++) {
 830                                 if (Values[i] == value)
 831                                         return XmlNames[i];
 832                         }
 833
 834                         if (IsFlags && value == 0)
 835                                 return string.Empty;
 836
 837                         string xmlName = string.Empty;
 838                         if (IsFlags) {
 839 #if NET_2_0
 840                                 xmlName = XmlCustomFormatter.FromEnum (value, XmlNames, Values, typeName);
 841 #else
 842                                 xmlName = XmlCustomFormatter.FromEnum (value, XmlNames, Values);
 843 #endif
 844                         }
 845
 846                         if (xmlName.Length == 0) {
 847 #if NET_2_0
 848                                 throw new InvalidOperationException (string.Format(CultureInfo.CurrentCulture,
 849                                         "'{0}' is not a valid value for {1}.", value, typeName));
 850 #else
 851                                 return value.ToString (CultureInfo.InvariantCulture);
 852 #endif
 853                         }
 854                         return xmlName;
 855                 }
 856
 857                 public string GetEnumName (string typeName, string xmlName)
 858                 {
 859                         if (_isFlags) {
 860                                 xmlName = xmlName.Trim ();
 861                                 if (xmlName.Length == 0)
 862                                         return "0";
 863
 864                                 System.Text.StringBuilder sb = new System.Text.StringBuilder ();
 865                                 string[] enumNames = xmlName.Split (null);
 866                                 foreach (string name in enumNames) {
 867                                         if (name == string.Empty) continue;
 868                                         string foundEnumValue = null;
 869                                         for (int i = 0; i < XmlNames.Length; i++)
 870                                                 if (XmlNames[i] == name) {
 871                                                         foundEnumValue = EnumNames[i];
 872                                                         break;
 873                                                 }
 874
 875                                         if (foundEnumValue != null) {
 876                                                 if (sb.Length > 0)
 877                                                         sb.Append (',');
 878                                                 sb.Append (foundEnumValue);
 879                                         } else {
 880                                                 throw new InvalidOperationException (string.Format (CultureInfo.CurrentCulture,
 881                                                         "'{0}' is not a valid value for {1}.", name, typeName));
 882                                         }
 883                                 }
 884                                 return sb.ToString ();
 885                         }
 886
 887                         foreach (EnumMapMember mem in _members)
 888                                 if (mem.XmlName == xmlName) return mem.EnumName;
 889
 890                         return null;
 891                 }
 892         }
 893 }