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

   1 //
   2 // XmlSerializer.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.Threading;
  33 using System.Collections;
  34 using System.Globalization;
  35 using System.IO;
  36 using System.Reflection;
  37 using System.Xml;
  38 using System.Xml.Schema;
  39 using System.Text;
  40 #if !NET_2_1
  41 using System.CodeDom;
  42 using System.CodeDom.Compiler;
  43 using Microsoft.CSharp;
  44 #endif
  45 using System.Configuration;
  46 using System.Security.Policy;
  47
  48 namespace System.Xml.Serialization
  49 {
  50
  51         public class XmlSerializer
  52         {
  53                 internal const string WsdlNamespace = "http://schemas.xmlsoap.org/wsdl/";
  54                 internal const string EncodingNamespace = "http://schemas.xmlsoap.org/soap/encoding/";
  55                 internal const string WsdlTypesNamespace = "http://microsoft.com/wsdl/types/";
  56                 static int generationThreshold;
  57                 static bool backgroundGeneration = true;
  58                 static bool deleteTempFiles = true;
  59                 static bool generatorFallback = true;
  60
  61                 bool customSerializer;
  62                 XmlMapping typeMapping;
  63
  64                 SerializerData serializerData;
  65
  66                 static Hashtable serializerTypes = new Hashtable ();
  67
  68                 internal class SerializerData
  69                 {
  70                         public int UsageCount;
  71                         public bool Generated;
  72                         public Type ReaderType;
  73                         public MethodInfo ReaderMethod;
  74                         public Type WriterType;
  75                         public MethodInfo WriterMethod;
  76                         public GenerationBatch Batch;
  77                         public XmlSerializerImplementation Implementation = null;
  78
  79                         public XmlSerializationReader CreateReader () {
  80                                 if (ReaderType != null)
  81                                         return (XmlSerializationReader) Activator.CreateInstance (ReaderType);
  82                                 else if (Implementation != null)
  83                                         return Implementation.Reader;
  84                                 else
  85                                         return null;
  86                         }
  87
  88                         public XmlSerializationWriter CreateWriter () {
  89                                 if (WriterType != null)
  90                                         return (XmlSerializationWriter) Activator.CreateInstance (WriterType);
  91                                 else if (Implementation != null)
  92                                         return Implementation.Writer;
  93                                 else
  94                                         return null;
  95                         }
  96                 }
  97
  98                 internal class GenerationBatch
  99                 {
 100                         public bool Done;
 101                         public XmlMapping[] Maps;
 102                         public SerializerData[] Datas;
 103                 }
 104
 105                 static XmlSerializer ()
 106                 {
 107                         // The following options are available:
 108                         // MONO_XMLSERIALIZER_DEBUG: when set to something != "no", it will
 109                         //       it will print the name of the generated file, and it won't
 110                         //       be deleted.
 111                         // MONO_XMLSERIALIZER_THS: The code generator threshold. It can be:
 112                         //       no: does not use the generator, always the interpreter.
 113                         //       0: always use the generator, wait until the generation is done.
 114                         //       any number: use the interpreted serializer until the specified
 115                         //       number of serializations is reached. At this point the generation
 116                         //       of the serializer will start in the background. The interpreter
 117                         //       will be used while the serializer is being generated.
 118                         //
 119                         //       XmlSerializer will fall back to the interpreted serializer if
 120                         //       the code generation somehow fails. This can be avoided for
 121                         //       debugging pourposes by adding the "nofallback" option.
 122                         //       For example: MONO_XMLSERIALIZER_THS=0,nofallback
 123
 124 #if NET_2_1
 125                         string db = null;
 126                         string th = null;
 127                         generationThreshold = -1;
 128                         backgroundGeneration = false;
 129 #else
 130                         string db = Environment.GetEnvironmentVariable ("MONO_XMLSERIALIZER_DEBUG");
 131                         string th = Environment.GetEnvironmentVariable ("MONO_XMLSERIALIZER_THS");
 132
 133                         if (th == null) {
 134                                 generationThreshold = 50;
 135                                 backgroundGeneration = true;
 136                         } else {
 137                                 int i = th.IndexOf (',');
 138                                 if (i != -1) {
 139                                         if (th.Substring (i+1) == "nofallback")
 140                                                 generatorFallback = false;
 141                                         th = th.Substring (0, i);
 142                                 }
 143
 144                                 if (th.ToLower(CultureInfo.InvariantCulture) == "no")
 145                                         generationThreshold = -1;
 146                                 else {
 147                                         generationThreshold = int.Parse (th, CultureInfo.InvariantCulture);
 148                                         backgroundGeneration = (generationThreshold != 0);
 149                                 }
 150                         }
 151 #endif
 152                         deleteTempFiles = (db == null || db == "no");
 153 #if !NET_2_1 && CONFIGURATION_DEP
 154                         // DiagnosticsSection
 155                         ConfigurationSection table = (ConfigurationSection) ConfigurationSettings.GetConfig("system.diagnostics");
 156                         var bf = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance;
 157                         if (table != null)
 158                         {
 159                                 // SwitchElementsCollection
 160                                 var pi = table.GetType ().GetProperty ("Switches", bf);
 161                                 var switchesElement = (ConfigurationElementCollection) pi.GetValue (table, null);
 162                                 foreach (ConfigurationElement e in switchesElement) {
 163                                         // SwitchElement
 164                                         if (e.GetType ().GetProperty ("Name", bf).GetValue (e, null) as string == "XmlSerialization.Compilation") {
 165                                                 if (e.GetType ().GetProperty ("Value", bf).GetValue (e, null) as string == "1")
 166                                                         deleteTempFiles = false;
 167                                                 break;
 168                                         }
 169                                 }
 170                         }
 171 #endif
 172                 }
 173
 174 #region Constructors
 175
 176                 protected XmlSerializer ()
 177                 {
 178                         customSerializer = true;
 179                 }
 180
 181                 public XmlSerializer (Type type)
 182                         : this (type, null, null, null, null)
 183                 {
 184                 }
 185
 186                 public XmlSerializer (XmlTypeMapping xmlTypeMapping)
 187                 {
 188                         typeMapping = xmlTypeMapping;
 189                 }
 190
 191                 internal XmlSerializer (XmlMapping mapping, SerializerData data)
 192                 {
 193                         typeMapping = mapping;
 194                         serializerData = data;
 195                 }
 196
 197                 public XmlSerializer (Type type, string defaultNamespace)
 198                         : this (type, null, null, null, defaultNamespace)
 199                 {
 200                 }
 201
 202                 public XmlSerializer (Type type, Type[] extraTypes)
 203                         : this (type, null, extraTypes, null, null)
 204                 {
 205                 }
 206
 207                 public XmlSerializer (Type type, XmlAttributeOverrides overrides)
 208                         : this (type, overrides, null, null, null)
 209                 {
 210                 }
 211
 212                 public XmlSerializer (Type type, XmlRootAttribute root)
 213                         : this (type, null, null, root, null)
 214                 {
 215                 }
 216
 217                 public XmlSerializer (Type type,
 218                         XmlAttributeOverrides overrides,
 219                         Type [] extraTypes,
 220                         XmlRootAttribute root,
 221                         string defaultNamespace)
 222                 {
 223                         if (type == null)
 224                                 throw new ArgumentNullException ("type");
 225
 226                         XmlReflectionImporter importer = new XmlReflectionImporter (overrides, defaultNamespace);
 227
 228                         if (extraTypes != null)
 229                         {
 230                                 foreach (Type intype in extraTypes)
 231                                         importer.IncludeType (intype);
 232                         }
 233
 234                         typeMapping = importer.ImportTypeMapping (type, root, defaultNamespace);
 235                 }
 236
 237                 internal XmlMapping Mapping
 238                 {
 239                         get { return typeMapping; }
 240                 }
 241
 242
 243                 [MonoTODO]
 244                 public XmlSerializer (Type type,
 245                         XmlAttributeOverrides overrides,
 246                         Type [] extraTypes,
 247                         XmlRootAttribute root,
 248                         string defaultNamespace,
 249                         string location,
 250                         Evidence evidence)
 251                 {
 252                 }
 253
 254 #endregion // Constructors
 255
 256 #region Events
 257                 private UnreferencedObjectEventHandler onUnreferencedObject;
 258                 private XmlAttributeEventHandler onUnknownAttribute;
 259                 private XmlElementEventHandler onUnknownElement;
 260                 private XmlNodeEventHandler onUnknownNode;
 261
 262                 public event XmlAttributeEventHandler UnknownAttribute
 263                 {
 264                         add { onUnknownAttribute += value; } remove { onUnknownAttribute -= value; }
 265                 }
 266
 267                 public event XmlElementEventHandler UnknownElement
 268                 {
 269                         add { onUnknownElement += value; } remove { onUnknownElement -= value; }
 270                 }
 271
 272                 public event XmlNodeEventHandler UnknownNode
 273                 {
 274                         add { onUnknownNode += value; } remove { onUnknownNode -= value; }
 275                 }
 276
 277
 278                 internal virtual void OnUnknownAttribute (XmlAttributeEventArgs e)
 279                 {
 280                         if (onUnknownAttribute != null) onUnknownAttribute(this, e);
 281                 }
 282
 283                 internal virtual void OnUnknownElement (XmlElementEventArgs e)
 284                 {
 285                         if (onUnknownElement != null) onUnknownElement(this, e);
 286                 }
 287
 288                 internal virtual void OnUnknownNode (XmlNodeEventArgs e)
 289                 {
 290                         if (onUnknownNode != null) onUnknownNode(this, e);
 291                 }
 292
 293                 internal virtual void OnUnreferencedObject (UnreferencedObjectEventArgs e)
 294                 {
 295                         if (onUnreferencedObject != null) onUnreferencedObject(this, e);
 296                 }
 297
 298                 public event UnreferencedObjectEventHandler UnreferencedObject
 299                 {
 300                         add { onUnreferencedObject += value; } remove { onUnreferencedObject -= value; }
 301                 }
 302
 303 #endregion // Events
 304
 305 #region Methods
 306
 307                 public virtual bool CanDeserialize (XmlReader xmlReader)
 308                 {
 309                         xmlReader.MoveToContent ();
 310                         if (typeMapping is XmlMembersMapping)
 311                                 return true;
 312                         else
 313                                 return ((XmlTypeMapping)typeMapping).ElementName == xmlReader.LocalName;
 314                 }
 315
 316                 protected virtual XmlSerializationReader CreateReader ()
 317                 {
 318                         // Must be implemented in derived class
 319                         throw new NotImplementedException ();
 320                 }
 321
 322                 protected virtual XmlSerializationWriter CreateWriter ()
 323                 {
 324                         // Must be implemented in derived class
 325                         throw new NotImplementedException ();
 326                 }
 327
 328                 public object Deserialize (Stream stream)
 329                 {
 330                         XmlTextReader xmlReader = new XmlTextReader(stream);
 331                         xmlReader.Normalization = true;
 332                         xmlReader.WhitespaceHandling = WhitespaceHandling.Significant;
 333                         return Deserialize(xmlReader);
 334                 }
 335
 336                 public object Deserialize (TextReader textReader)
 337                 {
 338                         XmlTextReader xmlReader = new XmlTextReader(textReader);
 339                         xmlReader.Normalization = true;
 340                         xmlReader.WhitespaceHandling = WhitespaceHandling.Significant;
 341                         return Deserialize(xmlReader);
 342                 }
 343
 344                 public object Deserialize (XmlReader xmlReader)
 345                 {
 346                         XmlSerializationReader xsReader;
 347                         if (customSerializer)
 348                                 xsReader = CreateReader ();
 349                         else
 350                                 xsReader = CreateReader (typeMapping);
 351
 352                         xsReader.Initialize (xmlReader, this);
 353                         return Deserialize (xsReader);
 354                 }
 355
 356                 protected virtual object Deserialize (XmlSerializationReader reader)
 357                 {
 358                         if (customSerializer)
 359                                 // Must be implemented in derived class
 360                                 throw new NotImplementedException ();
 361
 362                         try {
 363                                 if (reader is XmlSerializationReaderInterpreter)
 364                                         return ((XmlSerializationReaderInterpreter) reader).ReadRoot ();
 365                                 else {
 366                                         try {
 367                                                 return serializerData.ReaderMethod.Invoke (reader, null);
 368                                         } catch (TargetInvocationException ex) {
 369                                                 throw ex.InnerException;
 370                                         }
 371                                 }
 372                         } catch (Exception ex) {
 373                                 if (ex is InvalidOperationException || ex is InvalidCastException)
 374                                         throw new InvalidOperationException ("There is an error in"
 375                                                 + " XML document.", ex);
 376                                 throw;
 377                         }
 378                 }
 379
 380                 public static XmlSerializer [] FromMappings (XmlMapping [] mappings)
 381                 {
 382                         XmlSerializer[] sers = new XmlSerializer [mappings.Length];
 383                         SerializerData[] datas = new SerializerData [mappings.Length];
 384                         GenerationBatch batch = new GenerationBatch ();
 385                         batch.Maps = mappings;
 386                         batch.Datas = datas;
 387
 388                         for (int n=0; n<mappings.Length; n++)
 389                         {
 390                                 if (mappings[n] != null)
 391                                 {
 392                                         SerializerData data = new SerializerData ();
 393                                         data.Batch = batch;
 394                                         sers[n] = new XmlSerializer (mappings[n], data);
 395                                         datas[n] = data;
 396                                 }
 397                         }
 398
 399                         return sers;
 400                 }
 401
 402                 public static XmlSerializer [] FromTypes (Type [] types)
 403                 {
 404                         XmlSerializer [] sers = new XmlSerializer [types.Length];
 405                         for (int n=0; n<types.Length; n++)
 406                                 sers[n] = new XmlSerializer (types[n]);
 407                         return sers;
 408                 }
 409
 410                 protected virtual void Serialize (object o, XmlSerializationWriter writer)
 411                 {
 412                         if (customSerializer)
 413                                 // Must be implemented in derived class
 414                                 throw new NotImplementedException ();
 415
 416                         if (writer is XmlSerializationWriterInterpreter)
 417                                 ((XmlSerializationWriterInterpreter)writer).WriteRoot (o);
 418                         else {
 419                                 try {
 420                                         serializerData.WriterMethod.Invoke (writer, new object[] {o});
 421                                 } catch (TargetInvocationException ex) {
 422                                         throw ex.InnerException;
 423                                 }
 424                         }
 425                 }
 426
 427                 static Encoding DefaultEncoding = Encoding.Default;
 428
 429                 public void Serialize (Stream stream, object o)
 430                 {
 431                         XmlTextWriter xmlWriter = new XmlTextWriter (stream, DefaultEncoding);
 432                         xmlWriter.Formatting = Formatting.Indented;
 433                         Serialize (xmlWriter, o, null);
 434                 }
 435
 436                 public void Serialize (TextWriter textWriter, object o)
 437                 {
 438                         XmlTextWriter xmlWriter = new XmlTextWriter (textWriter);
 439                         xmlWriter.Formatting = Formatting.Indented;
 440                         Serialize (xmlWriter, o, null);
 441                 }
 442
 443                 public void Serialize (XmlWriter xmlWriter, object o)
 444                 {
 445                         Serialize (xmlWriter, o, null);
 446                 }
 447
 448                 public void Serialize (Stream stream, object o, XmlSerializerNamespaces namespaces)
 449                 {
 450                         XmlTextWriter xmlWriter = new XmlTextWriter (stream, DefaultEncoding);
 451                         xmlWriter.Formatting = Formatting.Indented;
 452                         Serialize (xmlWriter, o, namespaces);
 453                 }
 454
 455                 public void Serialize (TextWriter textWriter, object o, XmlSerializerNamespaces namespaces)
 456                 {
 457                         XmlTextWriter xmlWriter = new XmlTextWriter (textWriter);
 458                         xmlWriter.Formatting = Formatting.Indented;
 459                         Serialize (xmlWriter, o, namespaces);
 460                         xmlWriter.Flush();
 461                 }
 462
 463                 public void Serialize (XmlWriter xmlWriter, object o, XmlSerializerNamespaces namespaces)
 464                 {
 465                         XmlSerializationWriter xsWriter;
 466
 467                         try {
 468                                 if (customSerializer)
 469                                         xsWriter = CreateWriter ();
 470                                 else
 471                                         xsWriter = CreateWriter (typeMapping);
 472
 473                                 if (namespaces == null || namespaces.Count == 0) {
 474                                         namespaces = new XmlSerializerNamespaces ();
 475                                         namespaces.Add ("xsi", XmlSchema.InstanceNamespace);
 476                                         namespaces.Add ("xsd", XmlSchema.Namespace);
 477                                 }
 478
 479                                 xsWriter.Initialize (xmlWriter, namespaces);
 480                                 Serialize (o, xsWriter);
 481                                 xmlWriter.Flush ();
 482                         } catch (Exception ex) {
 483                                 if (ex is TargetInvocationException)
 484                                         ex = ex.InnerException;
 485
 486                                 if (ex is InvalidOperationException || ex is InvalidCastException)
 487                                         throw new InvalidOperationException ("There was an error generating" +
 488                                                 " the XML document.", ex);
 489
 490                                 throw;
 491                         }
 492                 }
 493
 494                 [MonoTODO]
 495                 public object Deserialize (XmlReader xmlReader, string encodingStyle, XmlDeserializationEvents events)
 496                 {
 497                         throw new NotImplementedException ();
 498                 }
 499
 500                 [MonoTODO]
 501                 public object Deserialize (XmlReader xmlReader, string encodingStyle)
 502                 {
 503                         throw new NotImplementedException ();
 504                 }
 505
 506                 [MonoTODO]
 507                 public object Deserialize (XmlReader xmlReader, XmlDeserializationEvents events)
 508                 {
 509                         throw new NotImplementedException ();
 510                 }
 511
 512                 [MonoTODO]
 513                 public static XmlSerializer[] FromMappings (XmlMapping[] mappings, Evidence evidence)
 514                 {
 515                         throw new NotImplementedException ();
 516                 }
 517
 518                 [MonoTODO]
 519                 public static XmlSerializer[] FromMappings (XmlMapping[] mappings, Type type)
 520                 {
 521                         throw new NotImplementedException ();
 522                 }
 523
 524 #if !MOBILE
 525                 public static Assembly GenerateSerializer (Type[] types, XmlMapping[] mappings)
 526                 {
 527                         return GenerateSerializer (types, mappings, null);
 528                 }
 529
 530                 [MonoTODO]
 531                 public static Assembly GenerateSerializer (Type[] types, XmlMapping[] mappings, CompilerParameters parameters)
 532                 {
 533                         GenerationBatch batch = new GenerationBatch ();
 534                         batch.Maps = mappings;
 535                         batch.Datas = new SerializerData [mappings.Length];
 536
 537                         for (int n=0; n<mappings.Length; n++) {
 538                                 SerializerData data = new SerializerData ();
 539                                 data.Batch = batch;
 540                                 batch.Datas [n] = data;
 541                         }
 542
 543                         return GenerateSerializers (batch, parameters);
 544                 }
 545 #endif
 546
 547                 public static string GetXmlSerializerAssemblyName (Type type)
 548                 {
 549                         return type.Assembly.GetName().Name + ".XmlSerializers";
 550                 }
 551
 552                 public static string GetXmlSerializerAssemblyName (Type type, string defaultNamespace)
 553                 {
 554                         return GetXmlSerializerAssemblyName (type) + "." + defaultNamespace.GetHashCode ();
 555                 }
 556
 557                 [MonoTODO]
 558                 public void Serialize (XmlWriter xmlWriter, object o, XmlSerializerNamespaces namespaces, string encodingStyle)
 559                 {
 560                         throw new NotImplementedException ();
 561                 }
 562
 563                 [MonoNotSupported("")]
 564                 public void Serialize (XmlWriter xmlWriter, Object o, XmlSerializerNamespaces namespaces, string encodingStyle, string id)
 565                 {
 566                         throw new NotImplementedException ();
 567                 }
 568
 569                 XmlSerializationWriter CreateWriter (XmlMapping typeMapping)
 570                 {
 571                         XmlSerializationWriter writer;
 572
 573                         lock (this) {
 574                                 if (serializerData != null) {
 575                                         lock (serializerData) {
 576                                                 writer = serializerData.CreateWriter ();
 577                                         }
 578                                         if (writer != null) return writer;
 579                                 }
 580                         }
 581
 582 #if !NET_2_1
 583                         if (!typeMapping.Source.CanBeGenerated || generationThreshold == -1)
 584                                 return new XmlSerializationWriterInterpreter (typeMapping);
 585
 586                         CheckGeneratedTypes (typeMapping);
 587
 588                         lock (this) {
 589                                 lock (serializerData) {
 590                                         writer = serializerData.CreateWriter ();
 591                                 }
 592                                 if (writer != null) return writer;
 593                                 if (!generatorFallback)
 594                                         throw new InvalidOperationException ("Error while generating serializer");
 595                         }
 596
 597 #endif
 598                         return new XmlSerializationWriterInterpreter (typeMapping);
 599                 }
 600
 601                 XmlSerializationReader CreateReader (XmlMapping typeMapping)
 602                 {
 603 #if !NET_2_1
 604                         XmlSerializationReader reader;
 605
 606                         lock (this) {
 607                                 if (serializerData != null) {
 608                                         lock (serializerData) {
 609                                                 reader = serializerData.CreateReader ();
 610                                         }
 611                                         if (reader != null) return reader;
 612                                 }
 613                         }
 614
 615                         if (!typeMapping.Source.CanBeGenerated || generationThreshold == -1)
 616                                 return new XmlSerializationReaderInterpreter (typeMapping);
 617
 618                         CheckGeneratedTypes (typeMapping);
 619
 620                         lock (this) {
 621                                 lock (serializerData) {
 622                                         reader = serializerData.CreateReader ();
 623                                 }
 624                                 if (reader != null) return reader;
 625                                 if (!generatorFallback)
 626                                         throw new InvalidOperationException ("Error while generating serializer");
 627                         }
 628
 629 #endif
 630                         return new XmlSerializationReaderInterpreter (typeMapping);
 631                 }
 632
 633 #if NET_2_1
 634                 void CheckGeneratedTypes (XmlMapping typeMapping)
 635                 {
 636                         throw new NotImplementedException();
 637                 }
 638                 void GenerateSerializersAsync (GenerationBatch batch)
 639                 {
 640                         throw new NotImplementedException();
 641                 }
 642                 void RunSerializerGeneration (object obj)
 643                 {
 644                         throw new NotImplementedException();
 645                 }
 646 #else
 647                 void CheckGeneratedTypes (XmlMapping typeMapping)
 648                 {
 649                         lock (this)
 650                         {
 651                                 if (serializerData == null)
 652                                 {
 653                                         lock (serializerTypes)
 654                                         {
 655                                                 serializerData = (SerializerData) serializerTypes [typeMapping.Source];
 656                                                 if (serializerData == null) {
 657                                                         serializerData = new SerializerData();
 658                                                         serializerTypes [typeMapping.Source] = serializerData;
 659                                                 }
 660                                         }
 661                                 }
 662                         }
 663
 664                         bool generate = false;
 665                         lock (serializerData)
 666                         {
 667                                 if (serializerData.UsageCount >= generationThreshold && !serializerData.Generated)
 668                                         serializerData.Generated = generate = true;
 669
 670                                 serializerData.UsageCount++;
 671                         }
 672
 673                         if (generate)
 674                         {
 675                                 if (serializerData.Batch != null)
 676                                         GenerateSerializersAsync (serializerData.Batch);
 677                                 else
 678                                 {
 679                                         GenerationBatch batch = new GenerationBatch ();
 680                                         batch.Maps = new XmlMapping[] {typeMapping};
 681                                         batch.Datas = new SerializerData[] {serializerData};
 682                                         GenerateSerializersAsync (batch);
 683                                 }
 684                         }
 685                 }
 686
 687                 void GenerateSerializersAsync (GenerationBatch batch)
 688                 {
 689                         if (batch.Maps.Length != batch.Datas.Length)
 690                                 throw new ArgumentException ("batch");
 691
 692                         lock (batch)
 693                         {
 694                                 if (batch.Done) return;
 695                                 batch.Done = true;
 696                         }
 697
 698                         if (backgroundGeneration)
 699                                 ThreadPool.QueueUserWorkItem (new WaitCallback (RunSerializerGeneration), batch);
 700                         else
 701                                 RunSerializerGeneration (batch);
 702                 }
 703
 704                 void RunSerializerGeneration (object obj)
 705                 {
 706                         try
 707                         {
 708                                 GenerationBatch batch = (GenerationBatch) obj;
 709                                 batch = LoadFromSatelliteAssembly (batch);
 710
 711                                 if (batch != null)
 712                                         GenerateSerializers (batch, null);
 713                         }
 714                         catch (Exception ex)
 715                         {
 716                                 Console.WriteLine (ex);
 717                         }
 718                 }
 719
 720                 static Assembly GenerateSerializers (GenerationBatch batch, CompilerParameters cp)
 721                 {
 722                         DateTime tim = DateTime.Now;
 723
 724                         XmlMapping[] maps = batch.Maps;
 725
 726                         if (cp == null) {
 727                                 cp = new CompilerParameters();
 728                                 cp.IncludeDebugInformation = false;
 729                                 cp.GenerateInMemory = true;
 730                                 cp.TempFiles.KeepFiles = !deleteTempFiles;
 731                         }
 732
 733                         string file = cp.TempFiles.AddExtension ("cs");
 734                         StreamWriter sw = new StreamWriter (file);
 735
 736                         if (!deleteTempFiles)
 737                                 Console.WriteLine ("Generating " + file);
 738
 739                         SerializationCodeGenerator gen = new SerializationCodeGenerator (maps);
 740
 741                         try
 742                         {
 743                                 gen.GenerateSerializers (sw);
 744                         }
 745                         catch (Exception ex)
 746                         {
 747                                 Console.WriteLine ("Serializer could not be generated");
 748                                 Console.WriteLine (ex);
 749                                 cp.TempFiles.Delete ();
 750                                 return null;
 751                         }
 752                         sw.Close ();
 753
 754                         CSharpCodeProvider provider = new CSharpCodeProvider();
 755                         ICodeCompiler comp = provider.CreateCompiler ();
 756
 757                         cp.GenerateExecutable = false;
 758
 759                         foreach (Type rtype in gen.ReferencedTypes)
 760                         {
 761                                 string path = new Uri (rtype.Assembly.CodeBase).LocalPath;
 762                                 if (!cp.ReferencedAssemblies.Contains (path))
 763                                         cp.ReferencedAssemblies.Add (path);
 764                         }
 765
 766                         if (!cp.ReferencedAssemblies.Contains ("System.dll"))
 767                                 cp.ReferencedAssemblies.Add ("System.dll");
 768                         if (!cp.ReferencedAssemblies.Contains ("System.Xml"))
 769                                 cp.ReferencedAssemblies.Add ("System.Xml");
 770                         if (!cp.ReferencedAssemblies.Contains ("System.Data"))
 771                                 cp.ReferencedAssemblies.Add ("System.Data");
 772                         if (!cp.ReferencedAssemblies.Contains ("System.Web.Services"))
 773                                 cp.ReferencedAssemblies.Add ("System.Web.Services");
 774
 775                         CompilerResults res = comp.CompileAssemblyFromFile (cp, file);
 776                         if (res.Errors.HasErrors || res.CompiledAssembly == null) {
 777                                 Console.WriteLine ("Error while compiling generated serializer");
 778                                 foreach (CompilerError error in res.Errors)
 779                                         Console.WriteLine (error);
 780
 781                                 cp.TempFiles.Delete ();
 782                                 return null;
 783                         }
 784
 785                         GenerationResult[] results = gen.GenerationResults;
 786                         for (int n=0; n<results.Length; n++)
 787                         {
 788                                 GenerationResult gres = results[n];
 789                                 SerializerData sd = batch.Datas [n];
 790                                 lock (sd)
 791                                 {
 792                                         sd.WriterType = res.CompiledAssembly.GetType (gres.Namespace + "." + gres.WriterClassName);
 793                                         sd.ReaderType = res.CompiledAssembly.GetType (gres.Namespace + "." + gres.ReaderClassName);
 794                                         sd.WriterMethod = sd.WriterType.GetMethod (gres.WriteMethodName);
 795                                         sd.ReaderMethod = sd.ReaderType.GetMethod (gres.ReadMethodName);
 796                                         sd.Batch = null;
 797                                 }
 798                         }
 799
 800                         cp.TempFiles.Delete ();
 801
 802                         if (!deleteTempFiles)
 803                                 Console.WriteLine ("Generation finished - " + (DateTime.Now - tim).TotalMilliseconds + " ms");
 804
 805                         return res.CompiledAssembly;
 806                 }
 807 #endif
 808
 809                 GenerationBatch LoadFromSatelliteAssembly (GenerationBatch batch)
 810                 {
 811                         return batch;
 812                 }
 813
 814 #endregion // Methods
 815         }
 816 }