mcs/class/System.Runtime.Serialization.Formatters.Soap/System.Runtime.Serialization.Formatters.Soap/SoapReader.cs

   1 // created on 24/04/2003 at 15:35\r
   2 //\r
   3 //      System.Runtime.Serialization.Formatters.Soap.SoapReader\r
   4 //\r
   5 //      Authors:\r
   6 //              Jean-Marc Andre (jean-marc.andre@polymtl.ca)\r
   7 //\r
   8 \r
   9 //\r
  10 // Permission is hereby granted, free of charge, to any person obtaining\r
  11 // a copy of this software and associated documentation files (the\r
  12 // "Software"), to deal in the Software without restriction, including\r
  13 // without limitation the rights to use, copy, modify, merge, publish,\r
  14 // distribute, sublicense, and/or sell copies of the Software, and to\r
  15 // permit persons to whom the Software is furnished to do so, subject to\r
  16 // the following conditions:\r
  17 // \r
  18 // The above copyright notice and this permission notice shall be\r
  19 // included in all copies or substantial portions of the Software.\r
  20 // \r
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,\r
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\r
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND\r
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE\r
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION\r
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION\r
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
  28 //\r
  29 \r
  30 using System;\r
  31 using System.IO;\r
  32 using System.Xml;\r
  33 using System.Xml.Schema;\r
  34 using System.Reflection;\r
  35 using System.Collections;\r
  36 using System.Runtime.Remoting;\r
  37 using System.Runtime.Serialization;\r
  38 using System.Runtime.Remoting.Messaging;\r
  39 using System.Runtime.Remoting.Metadata;\r
  40 \r
  41 namespace System.Runtime.Serialization.Formatters.Soap {\r
  42         internal sealed class SoapReader {\r
  43 \r
  44                 #region Fields\r
  45 \r
  46                 private SerializationBinder _binder;\r
  47                 private SoapTypeMapper mapper;\r
  48                 private ObjectManager objMgr;\r
  49                 private StreamingContext _context;\r
  50                 private long _nextAvailableId = long.MaxValue;\r
  51                 private ISurrogateSelector _surrogateSelector;\r
  52                 private XmlTextReader xmlReader;\r
  53                 private Hashtable _fieldIndices;\r
  54                 private long _topObjectId = 1;\r
  55                 \r
  56                 class TypeMetadata\r
  57                 {\r
  58                         public MemberInfo[] MemberInfos;\r
  59                         public Hashtable Indices;\r
  60                 }\r
  61 \r
  62                 #endregion\r
  63 \r
  64                 #region Properties\r
  65 \r
  66                 private long NextAvailableId\r
  67                 {\r
  68                         get \r
  69                         {\r
  70                                 _nextAvailableId--;\r
  71                                 return _nextAvailableId;\r
  72                         }\r
  73                 }\r
  74 \r
  75                 #endregion\r
  76 \r
  77                 #region Constructors\r
  78                 \r
  79                 public SoapReader(SerializationBinder binder, ISurrogateSelector selector, StreamingContext context) \r
  80                 {\r
  81                         _binder = binder;\r
  82                         objMgr = new ObjectManager(selector, context);\r
  83                         _context = context;\r
  84                         _surrogateSelector = selector;\r
  85                         _fieldIndices = new Hashtable();\r
  86                 }\r
  87 \r
  88                 #endregion\r
  89 \r
  90                 #region Public Methods\r
  91 \r
  92                 public object Deserialize(Stream inStream, ISoapMessage soapMessage) \r
  93                 {\r
  94                         ArrayList headers = null;\r
  95                         xmlReader = new XmlTextReader(inStream);\r
  96                         xmlReader.WhitespaceHandling = WhitespaceHandling.None;\r
  97                         mapper = new SoapTypeMapper(_binder);\r
  98 \r
  99                         try\r
 100                         {\r
 101                                 // SOAP-ENV:Envelope\r
 102                                 xmlReader.MoveToContent();\r
 103                                 xmlReader.ReadStartElement ();\r
 104                                 xmlReader.MoveToContent();\r
 105                                 \r
 106                                 // Read headers\r
 107                                 while (!(xmlReader.NodeType == XmlNodeType.Element && xmlReader.LocalName == "Body" && xmlReader.NamespaceURI == SoapTypeMapper.SoapEnvelopeNamespace))\r
 108                                 {\r
 109                                         if (xmlReader.NodeType == XmlNodeType.Element && xmlReader.LocalName == "Header" && xmlReader.NamespaceURI == SoapTypeMapper.SoapEnvelopeNamespace)\r
 110                                         {\r
 111                                                 if (headers == null) headers = new ArrayList ();\r
 112                                                 DeserializeHeaders (headers);\r
 113                                         }\r
 114                                         else\r
 115                                                 xmlReader.Skip ();\r
 116                                         xmlReader.MoveToContent();\r
 117                                 }\r
 118                                 \r
 119                                 // SOAP-ENV:Body\r
 120                                 xmlReader.ReadStartElement();\r
 121                                 xmlReader.MoveToContent();\r
 122 \r
 123                                 // The root object\r
 124                                 if (soapMessage != null)\r
 125                                 {\r
 126                                         if (DeserializeMessage (soapMessage)) {\r
 127                                                 _topObjectId = NextAvailableId;\r
 128                                                 RegisterObject (_topObjectId, soapMessage, null, 0, null, null);\r
 129                                         }\r
 130                                         xmlReader.MoveToContent();\r
 131                                         \r
 132                                         if (headers != null)\r
 133                                                 soapMessage.Headers = (Header[]) headers.ToArray (typeof(Header));\r
 134                                 }\r
 135                                 \r
 136                                 while (xmlReader.NodeType != XmlNodeType.EndElement)\r
 137                                         Deserialize();\r
 138                                         \r
 139                                 // SOAP-ENV:Body\r
 140                                 xmlReader.ReadEndElement ();\r
 141                                 xmlReader.MoveToContent();\r
 142 \r
 143                                 // SOAP-ENV:Envelope\r
 144                                 xmlReader.ReadEndElement ();\r
 145                         }\r
 146                         finally \r
 147                         {\r
 148                                 if(xmlReader != null) xmlReader.Close();\r
 149                         }\r
 150 \r
 151                         return TopObject;\r
 152                 }\r
 153                 \r
 154                 #endregion\r
 155                 \r
 156                 public SoapTypeMapper Mapper {\r
 157                         get { return mapper; }\r
 158                 }\r
 159                 \r
 160                 public XmlTextReader XmlReader {\r
 161                         get { return xmlReader; }\r
 162                 }\r
 163 \r
 164                 #region Private Methods\r
 165 \r
 166                 private object TopObject \r
 167                 {\r
 168                         get \r
 169                         {\r
 170                                 objMgr.DoFixups();\r
 171                                 objMgr.RaiseDeserializationEvent();\r
 172                                 return objMgr.GetObject(_topObjectId);\r
 173                         }\r
 174                 }\r
 175 \r
 176                 private bool IsNull()\r
 177                 {\r
 178                         string tmp = xmlReader["null", XmlSchema.InstanceNamespace];\r
 179                         return (tmp == null || tmp == string.Empty)?false:true;\r
 180                 }\r
 181 \r
 182                 private long GetId()\r
 183                 {\r
 184                         long id = 0;\r
 185 \r
 186                         string strId = xmlReader["id"];\r
 187                         if(strId == null || strId == String.Empty) return 0;\r
 188                         id = Convert.ToInt64(strId.Substring(4));\r
 189                         return id;\r
 190                 }\r
 191 \r
 192                 private long GetHref()\r
 193                 {\r
 194                         long href = 0;\r
 195                         \r
 196                         string strHref = xmlReader["href"];\r
 197                         if(strHref == null || strHref == string.Empty) return 0;\r
 198                         href = Convert.ToInt64(strHref.Substring(5));\r
 199                         return href;\r
 200                 }\r
 201 \r
 202                 private Type GetComponentType()\r
 203                 {\r
 204                         string strValue = xmlReader["type", XmlSchema.InstanceNamespace];\r
 205                         if(strValue == null) {\r
 206                                 if(GetId() != 0) return typeof(string);\r
 207                                 return null;\r
 208                         }\r
 209                         return GetTypeFromQName (strValue);\r
 210                 }\r
 211 \r
 212                 private bool DeserializeMessage(ISoapMessage message) \r
 213                 {\r
 214                         string typeNamespace, assemblyName;\r
 215 \r
 216                         if(xmlReader.Name == SoapTypeMapper.SoapEnvelopePrefix + ":Fault")\r
 217                         {\r
 218                                 Deserialize();\r
 219                                 return false;\r
 220                         }\r
 221 \r
 222                         SoapServices.DecodeXmlNamespaceForClrTypeNamespace(\r
 223                                 xmlReader.NamespaceURI,\r
 224                                 out typeNamespace,\r
 225                                 out assemblyName);\r
 226                         message.MethodName = xmlReader.LocalName;\r
 227                         message.XmlNameSpace = xmlReader.NamespaceURI;\r
 228 \r
 229                         ArrayList paramNames = new ArrayList();\r
 230                         ArrayList paramValues = new ArrayList();\r
 231                         long paramValuesId = NextAvailableId;\r
 232                         int[] indices = new int[1];\r
 233 \r
 234                         if (!xmlReader.IsEmptyElement)\r
 235                         {\r
 236                                 int initialDepth = xmlReader.Depth;\r
 237                                 xmlReader.Read();\r
 238                                 int i = 0;\r
 239                                 while(xmlReader.Depth > initialDepth) \r
 240                                 {\r
 241                                         long paramId, paramHref;\r
 242                                         object objParam = null;\r
 243                                         paramNames.Add (xmlReader.Name);\r
 244                                         Type paramType = null;\r
 245                                         \r
 246                                         if (message.ParamTypes != null) {\r
 247                                                 if (i >= message.ParamTypes.Length)\r
 248                                                         throw new SerializationException ("Not enough parameter types in SoapMessages");\r
 249                                                 paramType = message.ParamTypes [i];\r
 250                                         }\r
 251                                         \r
 252                                         indices[0] = i;\r
 253                                         objParam = DeserializeComponent(\r
 254                                                 paramType,\r
 255                                                 out paramId,\r
 256                                                 out paramHref,\r
 257                                                 paramValuesId,\r
 258                                                 null,\r
 259                                                 indices);\r
 260                                         indices[0] = paramValues.Add(objParam);\r
 261                                         if(paramHref != 0) \r
 262                                         {\r
 263                                                 RecordFixup(paramValuesId, paramHref, paramValues.ToArray(), null, null, null, indices);\r
 264                                         }\r
 265                                         else if(paramId != 0) \r
 266                                         {\r
 267 //                                              RegisterObject(paramId, objParam, null, paramValuesId, null, indices);\r
 268                                         }\r
 269                                         else \r
 270                                         {\r
 271                                         }\r
 272                                         i++;\r
 273                                 }\r
 274                                 xmlReader.ReadEndElement();\r
 275                         }\r
 276                         else\r
 277                         {\r
 278                                 xmlReader.Read();\r
 279                         }\r
 280                         \r
 281                         message.ParamNames = (string[]) paramNames.ToArray(typeof(string));\r
 282                         message.ParamValues = paramValues.ToArray();\r
 283                         RegisterObject(paramValuesId, message.ParamValues, null, 0, null, null);\r
 284                         return true;\r
 285                 }\r
 286 \r
 287                 void DeserializeHeaders (ArrayList headers)\r
 288                 {\r
 289                         xmlReader.ReadStartElement ();\r
 290                         xmlReader.MoveToContent ();\r
 291                         \r
 292                         while (xmlReader.NodeType != XmlNodeType.EndElement) \r
 293                         {\r
 294                                 if (xmlReader.NodeType != XmlNodeType.Element) { xmlReader.Skip(); continue; }\r
 295                                 \r
 296                                 if (xmlReader.GetAttribute ("root", SoapTypeMapper.SoapEncodingNamespace) == "1")\r
 297                                         headers.Add (DeserializeHeader ());\r
 298                                 else\r
 299                                         Deserialize ();\r
 300 \r
 301                                 xmlReader.MoveToContent ();\r
 302                         }\r
 303                         \r
 304                         xmlReader.ReadEndElement ();\r
 305                 }\r
 306                 \r
 307                 Header DeserializeHeader ()\r
 308                 {\r
 309                         Header h = new Header (xmlReader.LocalName, null);\r
 310                         h.HeaderNamespace = xmlReader.NamespaceURI;\r
 311                         h.MustUnderstand = xmlReader.GetAttribute ("mustUnderstand", SoapTypeMapper.SoapEnvelopeNamespace) == "1";\r
 312                         \r
 313                         object value;\r
 314                         long fieldId, fieldHref;\r
 315                         long idHeader = NextAvailableId;\r
 316                         FieldInfo fieldInfo = typeof(Header).GetField ("Value");\r
 317 \r
 318                         value = DeserializeComponent (null, out fieldId, out fieldHref, idHeader, fieldInfo, null);\r
 319                         h.Value = value;\r
 320 \r
 321                         if(fieldHref != 0 && value == null)\r
 322                         {\r
 323                                 RecordFixup (idHeader, fieldHref, h, null, null, fieldInfo, null);\r
 324                         }\r
 325                         else if(value != null && value.GetType().IsValueType && fieldId != 0)\r
 326                         {\r
 327                                 RecordFixup (idHeader, fieldId, h, null, null, fieldInfo, null);\r
 328                         }\r
 329                         else if(fieldId != 0)\r
 330                         {\r
 331                                 RegisterObject (fieldId, value, null, idHeader, fieldInfo, null);\r
 332                         }\r
 333                         \r
 334                         RegisterObject (idHeader, h, null, 0, null, null);\r
 335                         return h;\r
 336                 }\r
 337 \r
 338                 \r
 339                 private object DeserializeArray(long id)\r
 340                 {\r
 341                         // Special case for base64 byte arrays\r
 342                         if (GetComponentType () == typeof(byte[])) {\r
 343                                 byte[] data = Convert.FromBase64String (xmlReader.ReadElementString());\r
 344                                 RegisterObject(id, data, null, 0, null, null);\r
 345                                 return data;\r
 346                         }\r
 347                         \r
 348                         // Get the array properties\r
 349                         string strArrayType = xmlReader["arrayType", SoapTypeMapper.SoapEncodingNamespace];\r
 350                         string[] arrayInfo = strArrayType.Split(':');\r
 351                         int arraySuffixInfo = arrayInfo[1].LastIndexOf('[');\r
 352                         String arrayElementType = arrayInfo[1].Substring(0, arraySuffixInfo);\r
 353                         String arraySuffix = arrayInfo[1].Substring(arraySuffixInfo);\r
 354                         string[] arrayDims = arraySuffix.Substring(1,arraySuffix.Length-2).Trim().Split(',');\r
 355                         int numberOfDims = arrayDims.Length;\r
 356                         int[] lengths = new int[numberOfDims];\r
 357                         \r
 358                         for (int i=0; i < numberOfDims; i++)\r
 359                         {\r
 360                                 lengths[i] = Convert.ToInt32(arrayDims[i]);\r
 361                         }\r
 362 \r
 363                         int[] indices = new int[numberOfDims];\r
 364 \r
 365                         // Create the array\r
 366                         Type arrayType = mapper.GetType (arrayElementType, xmlReader.LookupNamespace(arrayInfo[0]));\r
 367                         Array array = Array.CreateInstance(\r
 368                                 arrayType,\r
 369                                 lengths);\r
 370 \r
 371                         for(int i = 0; i < numberOfDims; i++) \r
 372                         {\r
 373                                 indices[i] = array.GetLowerBound(i);\r
 374                         }\r
 375 \r
 376                         // Deserialize the array items\r
 377                         int arrayDepth = xmlReader.Depth;\r
 378                         xmlReader.Read();\r
 379                         while(xmlReader.Depth > arrayDepth)\r
 380                         {\r
 381                                 Type itemType = GetComponentType();\r
 382                                 if(itemType == null) \r
 383                                         itemType = array.GetType().GetElementType();\r
 384                                 long itemId, itemHref;\r
 385 \r
 386                                 object objItem = DeserializeComponent(itemType,\r
 387                                         out itemId,\r
 388                                         out itemHref,\r
 389                                         id,\r
 390                                         null,\r
 391                                         indices);\r
 392                                 if(itemHref != 0)\r
 393                                 {\r
 394                                         object obj = objMgr.GetObject(itemHref);\r
 395                                         if(obj != null)\r
 396                                                 array.SetValue(obj, indices);\r
 397                                         else\r
 398                                                 RecordFixup(id, itemHref, array, null, null, null, indices);\r
 399                                 }\r
 400                                 else if(objItem != null && objItem.GetType().IsValueType && itemId != 0)\r
 401                                 {\r
 402                                         RecordFixup(id, itemId, array, null, null, null, indices);\r
 403                                 }\r
 404                                 else if(itemId != 0)\r
 405                                 {\r
 406                                         RegisterObject(itemId, objItem, null, id, null, indices);\r
 407                                         array.SetValue(objItem, indices);\r
 408                                 }\r
 409                                 else \r
 410                                 {\r
 411                                         array.SetValue(objItem, indices);\r
 412                                 }\r
 413 \r
 414                                 // Get the next indice\r
 415                                 for(int dim = array.Rank - 1; dim >= 0; dim--)\r
 416                                 {\r
 417                                         indices[dim]++;\r
 418                                         if(indices[dim] > array.GetUpperBound(dim))\r
 419                                         {\r
 420                                                 if(dim > 0)\r
 421                                                 {\r
 422                                                         indices[dim] = array.GetLowerBound(dim);\r
 423                                                         continue;\r
 424                                                 }\r
 425                                                 \r
 426                                         }\r
 427                                         break;\r
 428                                 }\r
 429                         }\r
 430 \r
 431                         RegisterObject(id, array, null, 0, null, null);\r
 432                         xmlReader.ReadEndElement();\r
 433                         return array;\r
 434 \r
 435                 }\r
 436 \r
 437 \r
 438                 private object Deserialize()\r
 439                 {\r
 440                         object objReturn = null;\r
 441                         Type type = mapper.GetType (xmlReader.LocalName, xmlReader.NamespaceURI);\r
 442 \r
 443                         // Get the Id\r
 444                         long id = GetId();\r
 445                         id = (id == 0)?1:id;\r
 446 \r
 447                         if(type == typeof(Array))\r
 448                         {\r
 449                                 objReturn = DeserializeArray(id);\r
 450                         }\r
 451                         else\r
 452                         {\r
 453                                 objReturn = DeserializeObject(type, id, 0, null, null);\r
 454 \r
 455                         }\r
 456 \r
 457                         return objReturn;\r
 458                 }\r
 459 \r
 460 \r
 461                 private object DeserializeObject(\r
 462                         Type type, \r
 463                         long id, \r
 464                         long parentId, \r
 465                         MemberInfo parentMemberInfo,\r
 466                         int[] indices)\r
 467                 {\r
 468                         SerializationInfo info = null;\r
 469                         bool NeedsSerializationInfo = false;\r
 470                         bool hasFixup;\r
 471 \r
 472                         // in case of String & TimeSpan we should allways use 'ReadInternalSoapValue' method\r
 473                         // in case of other internal types, we should use ReadInternalSoapValue' only if it is NOT\r
 474                         // the root object, means it is a data member of another object that is being serialized.\r
 475                         bool shouldReadInternal = (type == typeof(String) || type == typeof(TimeSpan) );\r
 476                         if(shouldReadInternal || mapper.IsInternalSoapType (type) && (indices != null || parentMemberInfo != null) ) \r
 477                         {\r
 478                                 object obj = mapper.ReadInternalSoapValue (this, type);\r
 479                                 \r
 480                                 if(id != 0) \r
 481                                         RegisterObject(id, obj, info, parentId, parentMemberInfo, indices);\r
 482 \r
 483                                 return obj;\r
 484                         }\r
 485                         object objReturn = \r
 486                                 FormatterServices.GetUninitializedObject(type);\r
 487 \r
 488 #if NET_2_0 && !TARGET_JVM\r
 489                         objMgr.RaiseOnDeserializingEvent (objReturn);\r
 490 #endif\r
 491                         if(objReturn is ISerializable)\r
 492                                 NeedsSerializationInfo = true;\r
 493 \r
 494                         if(_surrogateSelector != null && NeedsSerializationInfo == false)\r
 495                         {\r
 496                                 ISurrogateSelector selector;\r
 497                                 ISerializationSurrogate surrogate = _surrogateSelector.GetSurrogate(\r
 498                                         type,\r
 499                                         _context,\r
 500                                         out selector);\r
 501                                 NeedsSerializationInfo |= (surrogate != null);\r
 502                         }\r
 503 \r
 504                         if(NeedsSerializationInfo)\r
 505                         {\r
 506                                 objReturn = \r
 507                                         DeserializeISerializableObject(objReturn, id, out info, out hasFixup);\r
 508                         }\r
 509                         else\r
 510                         {\r
 511                                 objReturn = \r
 512                                         DeserializeSimpleObject(objReturn, id, out hasFixup);\r
 513                                 if(!hasFixup && objReturn is IObjectReference)\r
 514                                         objReturn = ((IObjectReference)objReturn).GetRealObject(_context);\r
 515                         }\r
 516 \r
 517                         RegisterObject(id, objReturn, info, parentId, parentMemberInfo, indices);\r
 518                         xmlReader.ReadEndElement();\r
 519                         return objReturn;\r
 520                 }\r
 521 \r
 522 \r
 523                 private object DeserializeSimpleObject(\r
 524                         object obj,\r
 525                         long id,\r
 526                         out bool hasFixup\r
 527                         )\r
 528                 {\r
 529                         hasFixup = false;\r
 530                         Type currentType = obj.GetType();\r
 531                         TypeMetadata tm = GetTypeMetadata (currentType);\r
 532 \r
 533                         object[] data = new object[tm.MemberInfos.Length];\r
 534                         xmlReader.Read();\r
 535                         xmlReader.MoveToContent ();\r
 536                         while (xmlReader.NodeType != XmlNodeType.EndElement)\r
 537                         {\r
 538                                 if (xmlReader.NodeType != XmlNodeType.Element) {\r
 539                                         xmlReader.Skip ();\r
 540                                         continue;\r
 541                                 }\r
 542                                 \r
 543                                 object fieldObject;\r
 544                                 long fieldId, fieldHref;\r
 545 \r
 546                                 object indexob = tm.Indices [xmlReader.LocalName];\r
 547                                 if (indexob == null)\r
 548                                         throw new SerializationException ("Field \"" + xmlReader.LocalName + "\" not found in class " + currentType.FullName);\r
 549                                 \r
 550                                 int index = (int) indexob;\r
 551                                 FieldInfo fieldInfo = (tm.MemberInfos[index]) as FieldInfo;\r
 552 \r
 553                                 fieldObject = \r
 554                                         DeserializeComponent(fieldInfo.FieldType,\r
 555                                         out fieldId,\r
 556                                         out fieldHref,\r
 557                                         id,\r
 558                                         fieldInfo,\r
 559                                         null);\r
 560 \r
 561                                 data[index] = fieldObject;\r
 562 \r
 563                                 if(fieldHref != 0 && fieldObject == null)\r
 564                                 {\r
 565                                         RecordFixup(id, fieldHref, obj, null, null, fieldInfo, null);\r
 566                                         hasFixup = true;\r
 567                                         continue;\r
 568                                 }\r
 569                                 if(fieldObject != null && fieldObject.GetType().IsValueType && fieldId != 0)\r
 570                                 {\r
 571                                         RecordFixup(id, fieldId, obj, null, null, fieldInfo, null);\r
 572                                         hasFixup = true;\r
 573                                         continue;\r
 574                                 }\r
 575 \r
 576                                 if(fieldId != 0)\r
 577                                 {\r
 578                                         RegisterObject(fieldId, fieldObject, null, id, fieldInfo, null);\r
 579                                 }\r
 580                         }\r
 581 \r
 582                         FormatterServices.PopulateObjectMembers (obj, tm.MemberInfos, data);\r
 583                         return obj;\r
 584                 }\r
 585 \r
 586 \r
 587                 private object DeserializeISerializableObject(\r
 588                         object obj, \r
 589                         long id, \r
 590                         out SerializationInfo info,\r
 591                         out bool hasFixup\r
 592                         )\r
 593                 {\r
 594                         long fieldId, fieldHref;\r
 595                         info = new SerializationInfo(obj.GetType(), new FormatterConverter());\r
 596                         hasFixup = false;\r
 597                         \r
 598                         int initialDepth = xmlReader.Depth;\r
 599                         xmlReader.Read();\r
 600                         while(xmlReader.Depth > initialDepth) \r
 601                         {\r
 602                                 Type fieldType = GetComponentType();\r
 603                                 string fieldName = XmlConvert.DecodeName (xmlReader.LocalName);\r
 604                                 object objField = DeserializeComponent(\r
 605                                         fieldType,\r
 606                                         out fieldId,\r
 607                                         out fieldHref,\r
 608                                         id,\r
 609                                         null,\r
 610                                         null);\r
 611                                 if(fieldHref != 0 && objField == null) \r
 612                                 {\r
 613                                         RecordFixup(id, fieldHref, obj, info, fieldName, null, null);\r
 614                                         hasFixup = true;\r
 615                                         continue;\r
 616                                 }\r
 617                                 else if(fieldId != 0 && objField.GetType().IsValueType)\r
 618                                 {\r
 619                                         RecordFixup(id, fieldId, obj, info, fieldName, null, null);\r
 620                                         hasFixup = true;\r
 621                                         continue;\r
 622                                 }\r
 623                                 \r
 624                                 if(fieldId != 0) \r
 625                                 {\r
 626                                         RegisterObject(fieldId, objField, null, id, null, null);\r
 627                                 }\r
 628 \r
 629                                 info.AddValue(fieldName, objField, (fieldType != null)?fieldType:typeof(object));\r
 630                         }\r
 631 \r
 632                         return obj;\r
 633                 }\r
 634 \r
 635 \r
 636                 private object DeserializeComponent(\r
 637                         Type componentType, \r
 638                         out long componentId,\r
 639                         out long componentHref,\r
 640                         long parentId,\r
 641                         MemberInfo parentMemberInfo,\r
 642                         int[] indices)\r
 643                 {\r
 644                         object objReturn;\r
 645                         componentId = 0;\r
 646                         componentHref = 0;\r
 647 \r
 648                         if(IsNull())\r
 649                         {\r
 650                                 xmlReader.Read();\r
 651                                 return null;\r
 652                         }\r
 653 \r
 654                         Type xsiType = GetComponentType();\r
 655                         if(xsiType != null) componentType = xsiType;\r
 656 \r
 657                         if(xmlReader.HasAttributes)\r
 658                         {\r
 659                                 componentId = GetId();\r
 660                                 componentHref = GetHref();\r
 661                         }\r
 662 \r
 663                         if(componentId != 0)\r
 664                         {\r
 665                                 // It's a string\r
 666                                 string str = xmlReader.ReadElementString();\r
 667                                 objMgr.RegisterObject (str, componentId);\r
 668                                 return str;\r
 669                         }\r
 670                         if(componentHref != 0)\r
 671                         {\r
 672                                 // Move the cursor to the next node\r
 673                                 xmlReader.Read();\r
 674                                 return objMgr.GetObject(componentHref);\r
 675                         }\r
 676 \r
 677                         if(componentType == null)\r
 678                                 return xmlReader.ReadElementString();\r
 679 \r
 680                         componentId = NextAvailableId;\r
 681                         objReturn = DeserializeObject(\r
 682                                 componentType,\r
 683                                 componentId,\r
 684                                 parentId,\r
 685                                 parentMemberInfo,\r
 686                                 indices);\r
 687                         return objReturn;\r
 688                 }\r
 689 \r
 690                 public void RecordFixup(\r
 691                         long parentObjectId, \r
 692                         long childObjectId,\r
 693                         object parentObject,\r
 694                         SerializationInfo info,\r
 695                         string fieldName,\r
 696                         MemberInfo memberInfo,\r
 697                         int[] indices)\r
 698                 {\r
 699                         if(info != null)\r
 700                         {\r
 701                                 objMgr.RecordDelayedFixup(parentObjectId, fieldName, childObjectId);\r
 702                         }\r
 703                         else if (parentObject is Array) \r
 704                         {\r
 705                                 if (indices.Length == 1)\r
 706                                         objMgr.RecordArrayElementFixup (parentObjectId, indices[0], childObjectId);\r
 707                                 else\r
 708                                         objMgr.RecordArrayElementFixup (parentObjectId, (int[])indices.Clone(), childObjectId);\r
 709                         }\r
 710                         else \r
 711                         {\r
 712                                 objMgr.RecordFixup (parentObjectId, memberInfo, childObjectId);\r
 713                         }\r
 714                 }\r
 715 \r
 716                 private void RegisterObject (\r
 717                         long objectId, \r
 718                         object objectInstance, \r
 719                         SerializationInfo info, \r
 720                         long parentObjectId, \r
 721                         MemberInfo parentObjectMember, \r
 722                         int[] indices)\r
 723                 {\r
 724                         if (parentObjectId == 0) indices = null;\r
 725 \r
 726                         if (!objectInstance.GetType().IsValueType || parentObjectId == 0)\r
 727                                 objMgr.RegisterObject (objectInstance, objectId, info, 0, null, null);\r
 728                         else\r
 729                         {\r
 730                                 if(objMgr.GetObject(objectId) != null)\r
 731                                         throw new SerializationException("Object already registered");\r
 732                                 if (indices != null) indices = (int[])indices.Clone();\r
 733                                 objMgr.RegisterObject (\r
 734                                         objectInstance, \r
 735                                         objectId, \r
 736                                         info, \r
 737                                         parentObjectId, \r
 738                                         parentObjectMember, \r
 739                                         indices);\r
 740                         }\r
 741                 }\r
 742 \r
 743                 TypeMetadata GetTypeMetadata (Type type)\r
 744                 {\r
 745                         TypeMetadata tm = _fieldIndices[type] as TypeMetadata;\r
 746                         if (tm != null) return tm;\r
 747                         \r
 748                         tm = new TypeMetadata ();\r
 749                         tm.MemberInfos = FormatterServices.GetSerializableMembers (type, _context);\r
 750                         \r
 751                         tm.Indices      = new Hashtable();\r
 752                         for(int i = 0; i < tm.MemberInfos.Length; i++) {\r
 753                                 SoapFieldAttribute at = (SoapFieldAttribute) InternalRemotingServices.GetCachedSoapAttribute (tm.MemberInfos[i]);\r
 754                                 tm.Indices [XmlConvert.EncodeLocalName (at.XmlElementName)] = i;\r
 755                         }\r
 756                         \r
 757                         _fieldIndices[type] = tm;\r
 758                         return tm;\r
 759                 }\r
 760                 \r
 761                 public Type GetTypeFromQName (string qname)\r
 762                 {\r
 763                         string[] strName = qname.Split(':');\r
 764                         string namespaceURI = xmlReader.LookupNamespace (strName[0]);\r
 765                         return mapper.GetType (strName[1], namespaceURI);\r
 766                 }\r
 767                 \r
 768                 #endregion\r
 769         }\r
 770 }\r