mcs/tools/wsdl/SampleGenerator.cs

   1 //
   2 // SampleGenerator.cs
   3 //
   4 // Author:
   5 //   Lluis Sanchez Gual (lluis@ximian.com)
   6 //
   7 // Copyright (C) 2004 Novel Inc.
   8 //
   9
  10 using System;
  11 using System.IO;
  12 using System.Text;
  13 using System.Collections;
  14 using System.Web.Services.Description;
  15 using System.Xml;
  16 using System.Xml.Schema;
  17 using System.Xml.Serialization;
  18
  19 namespace Mono.WebServices
  20 {
  21         public class ConsoleSampleGenerator: SampleGenerator
  22         {
  23                 public ConsoleSampleGenerator (ServiceDescriptionCollection services, XmlSchemas schemas)
  24                 : base (services, schemas)
  25                 {
  26                 }
  27
  28                 public static void Generate (ArrayList services, ArrayList schemas, string binOper, string protocol)
  29                 {
  30                         ServiceDescriptionCollection descCol = new ServiceDescriptionCollection ();
  31                         foreach (ServiceDescription sd in services)
  32                                 descCol.Add (sd);
  33
  34                         XmlSchemas schemaCol;
  35
  36                         if (schemas.Count > 0) {
  37                                 schemaCol = new XmlSchemas ();
  38                                 foreach (XmlSchema sc in schemas)
  39                                         schemaCol.Add (sc);
  40                         }
  41                         else
  42                                 schemaCol = descCol[0].Types.Schemas;
  43
  44                         string oper, bin = null;
  45
  46                         int i = binOper.IndexOf ('/');
  47                         if (i != -1) {
  48                                 oper = binOper.Substring (i+1);
  49                                 bin = binOper.Substring (0,i);
  50                         }
  51                         else
  52                                 oper = binOper;
  53
  54                         ConsoleSampleGenerator sg = new ConsoleSampleGenerator (descCol, schemaCol);
  55
  56                         string req, resp;
  57                         sg.GenerateMessages (oper, bin, protocol, out req, out resp);
  58
  59                         Console.WriteLine ();
  60                         Console.WriteLine ("Sample request message:");
  61                         Console.WriteLine ();
  62                         Console.WriteLine (req);
  63                         Console.WriteLine ();
  64                         Console.WriteLine ("Sample response message:");
  65                         Console.WriteLine ();
  66                         Console.WriteLine (resp);
  67                 }
  68
  69                 public void GenerateMessages (string operation, string bindingName, string protocol, out string req, out string resp)
  70                 {
  71                         Port port = FindPort (bindingName, protocol);
  72                         Binding binding = descriptions.GetBinding (port.Binding);
  73                         if (binding == null) throw new InvalidOperationException ("Binding " + bindingName + " not found");
  74
  75                         PortType portType = descriptions.GetPortType (binding.Type);
  76                         Operation oper = FindOperation (portType, operation);
  77                         if (oper == null) throw new InvalidOperationException ("Operation " + operation + " not found");
  78                         OperationBinding obin = FindOperation (binding, operation);
  79
  80                         req = GenerateMessage (port, obin, oper, protocol, true);
  81                         resp = GenerateMessage (port, obin, oper, protocol, false);
  82                 }
  83
  84                 Port FindPort (string portName, string protocol)
  85                 {
  86                         Service service = descriptions[0].Services[0];
  87                         foreach (Port port in service.Ports)
  88                         {
  89                                 if (portName == null)
  90                                 {
  91                                         Binding binding = descriptions.GetBinding (port.Binding);
  92                                         if (GetProtocol (binding) == protocol) return port;
  93                                 }
  94                                 else if (port.Name == portName)
  95                                         return port;
  96                         }
  97                         return null;
  98                 }
  99
 100                 string GetProtocol (Binding binding)
 101                 {
 102                         if (binding.Extensions.Find (typeof(SoapBinding)) != null) return "Soap";
 103                         HttpBinding hb = (HttpBinding) binding.Extensions.Find (typeof(HttpBinding));
 104                         if (hb == null) return "";
 105                         if (hb.Verb == "POST") return "HttpPost";
 106                         if (hb.Verb == "GET") return "HttpGet";
 107                         return "";
 108                 }
 109
 110                 Operation FindOperation (PortType portType, string name)
 111                 {
 112                         foreach (Operation oper in portType.Operations) {
 113                                 if (oper.Messages.Input.Name != null) {
 114                                         if (oper.Messages.Input.Name == name) return oper;
 115                                 }
 116                                 else
 117                                         if (oper.Name == name) return oper;
 118                         }
 119
 120                         return null;
 121                 }
 122
 123                 OperationBinding FindOperation (Binding binding, string name)
 124                 {
 125                         foreach (OperationBinding oper in binding.Operations) {
 126                                 if (oper.Input.Name != null) {
 127                                         if (oper.Input.Name == name) return oper;
 128                                 }
 129                                 else
 130                                         if (oper.Name == name) return oper;
 131                         }
 132
 133                         return null;
 134                 }
 135         }
 136
 137         //
 138         // Sample generator class
 139         //
 140
 141         public class SampleGenerator
 142         {
 143                 protected ServiceDescriptionCollection descriptions;
 144                 protected XmlSchemas schemas;
 145                 XmlSchemaElement anyElement;
 146                 ArrayList queue;
 147                 SoapBindingUse currentUse;
 148                 XmlDocument document = new XmlDocument ();
 149
 150                 static readonly XmlQualifiedName anyType = new XmlQualifiedName ("anyType",XmlSchema.Namespace);
 151                 static readonly XmlQualifiedName arrayType = new XmlQualifiedName ("Array","http://schemas.xmlsoap.org/soap/encoding/");
 152                 static readonly XmlQualifiedName arrayTypeRefName = new XmlQualifiedName ("arrayType","http://schemas.xmlsoap.org/soap/encoding/");
 153                 const string SoapEnvelopeNamespace = "http://schemas.xmlsoap.org/soap/envelope/";
 154                 const string WsdlNamespace = "http://schemas.xmlsoap.org/wsdl/";
 155                 const string SoapEncodingNamespace = "http://schemas.xmlsoap.org/soap/encoding/";
 156
 157                 class EncodedType
 158                 {
 159                         public EncodedType (string ns, XmlSchemaElement elem) { Namespace = ns; Element = elem; }
 160                         public string Namespace;
 161                         public XmlSchemaElement Element;
 162                 }
 163
 164                 public SampleGenerator (ServiceDescriptionCollection services, XmlSchemas schemas)
 165                 {
 166                         descriptions = services;
 167                         this.schemas = schemas;
 168                         queue = new ArrayList ();
 169                 }
 170
 171                 public string GenerateMessage (Port port, OperationBinding obin, Operation oper, string protocol, bool generateInput)
 172                 {
 173                         OperationMessage msg = null;
 174                         foreach (OperationMessage opm in oper.Messages)
 175                         {
 176                                 if (opm is OperationInput && generateInput) msg = opm;
 177                                 else if (opm is OperationOutput && !generateInput) msg = opm;
 178                         }
 179                         if (msg == null) return null;
 180
 181                         switch (protocol) {
 182                                 case "Soap": return GenerateHttpSoapMessage (port, obin, oper, msg);
 183                                 case "HttpGet": return GenerateHttpGetMessage (port, obin, oper, msg);
 184                                 case "HttpPost": return GenerateHttpPostMessage (port, obin, oper, msg);
 185                         }
 186                         return "Unknown protocol";
 187                 }
 188
 189                 public string GenerateHttpSoapMessage (Port port, OperationBinding obin, Operation oper, OperationMessage msg)
 190                 {
 191                         string req = "";
 192
 193                         if (msg is OperationInput)
 194                         {
 195                                 SoapAddressBinding sab = port.Extensions.Find (typeof(SoapAddressBinding)) as SoapAddressBinding;
 196                                 SoapOperationBinding sob = obin.Extensions.Find (typeof(SoapOperationBinding)) as SoapOperationBinding;
 197                                 req += "POST " + new Uri (sab.Location).AbsolutePath + "\n";
 198                                 req += "SOAPAction: " + sob.SoapAction + "\n";
 199                                 req += "Content-Type: text/xml; charset=utf-8\n";
 200                                 req += "Content-Length: " + GetLiteral ("string") + "\n";
 201                                 req += "Host: " + GetLiteral ("string") + "\n\n";
 202                         }
 203                         else
 204                         {
 205                                 req += "HTTP/1.0 200 OK\n";
 206                                 req += "Content-Type: text/xml; charset=utf-8\n";
 207                                 req += "Content-Length: " + GetLiteral ("string") + "\n\n";
 208                         }
 209
 210                         req += GenerateSoapMessage (obin, oper, msg);
 211                         return req;
 212                 }
 213
 214                 public string GenerateHttpGetMessage (Port port, OperationBinding obin, Operation oper, OperationMessage msg)
 215                 {
 216                         string req = "";
 217
 218                         if (msg is OperationInput)
 219                         {
 220                                 HttpAddressBinding sab = port.Extensions.Find (typeof(HttpAddressBinding)) as HttpAddressBinding;
 221                                 HttpOperationBinding sob = obin.Extensions.Find (typeof(HttpOperationBinding)) as HttpOperationBinding;
 222                                 string location = new Uri (sab.Location).AbsolutePath + sob.Location + "?" + BuildQueryString (msg);
 223                                 req += "GET " + location + "\n";
 224                                 req += "Host: " + GetLiteral ("string");
 225                         }
 226                         else
 227                         {
 228                                 req += "HTTP/1.0 200 OK\n";
 229                                 req += "Content-Type: text/xml; charset=utf-8\n";
 230                                 req += "Content-Length: " + GetLiteral ("string") + "\n\n";
 231
 232                                 MimeXmlBinding mxb = (MimeXmlBinding) obin.Output.Extensions.Find (typeof(MimeXmlBinding)) as MimeXmlBinding;
 233                                 if (mxb == null) return req;
 234
 235                                 Message message = descriptions.GetMessage (msg.Message);
 236                                 XmlQualifiedName ename = null;
 237                                 foreach (MessagePart part in message.Parts)
 238                                         if (part.Name == mxb.Part) ename = part.Element;
 239
 240                                 if (ename == null) return req + GetLiteral("string");
 241
 242                                 StringWriter sw = new StringWriter ();
 243                                 XmlTextWriter xtw = new XmlTextWriter (sw);
 244                                 xtw.Formatting = Formatting.Indented;
 245                                 currentUse = SoapBindingUse.Literal;
 246                                 WriteRootElementSample (xtw, ename);
 247                                 xtw.Close ();
 248                                 req += sw.ToString ();
 249                         }
 250
 251                         return req;
 252                 }
 253
 254                 public string GenerateHttpPostMessage (Port port, OperationBinding obin, Operation oper, OperationMessage msg)
 255                 {
 256                         string req = "";
 257
 258                         if (msg is OperationInput)
 259                         {
 260                                 HttpAddressBinding sab = port.Extensions.Find (typeof(HttpAddressBinding)) as HttpAddressBinding;
 261                                 HttpOperationBinding sob = obin.Extensions.Find (typeof(HttpOperationBinding)) as HttpOperationBinding;
 262                                 string location = new Uri (sab.Location).AbsolutePath + sob.Location;
 263                                 req += "POST " + location + "\n";
 264                                 req += "Content-Type: application/x-www-form-urlencoded\n";
 265                                 req += "Content-Length: " + GetLiteral ("string") + "\n";
 266                                 req += "Host: " + GetLiteral ("string") + "\n\n";
 267                                 req += BuildQueryString (msg);
 268                         }
 269                         else return GenerateHttpGetMessage (port, obin, oper, msg);
 270
 271                         return req;
 272                 }
 273
 274                 string BuildQueryString (OperationMessage opm)
 275                 {
 276                         string s = "";
 277                         Message msg = descriptions.GetMessage (opm.Message);
 278                         foreach (MessagePart part in msg.Parts)
 279                         {
 280                                 if (s.Length != 0) s += "&";
 281                                 s += part.Name + "=" + GetLiteral (part.Type.Name);
 282                         }
 283                         return s;
 284                 }
 285
 286                 public string GenerateSoapMessage (OperationBinding obin, Operation oper, OperationMessage msg)
 287                 {
 288                         SoapOperationBinding sob = obin.Extensions.Find (typeof(SoapOperationBinding)) as SoapOperationBinding;
 289                         SoapBindingStyle style = (sob != null) ? sob.Style : SoapBindingStyle.Document;
 290
 291                         MessageBinding msgbin = (msg is OperationInput) ? (MessageBinding) obin.Input : (MessageBinding)obin.Output;
 292                         SoapBodyBinding sbb = msgbin.Extensions.Find (typeof(SoapBodyBinding)) as SoapBodyBinding;
 293                         SoapBindingUse bodyUse = (sbb != null) ? sbb.Use : SoapBindingUse.Literal;
 294
 295                         StringWriter sw = new StringWriter ();
 296                         XmlTextWriter xtw = new XmlTextWriter (sw);
 297                         xtw.Formatting = Formatting.Indented;
 298
 299                         xtw.WriteStartDocument ();
 300                         xtw.WriteStartElement ("soap", "Envelope", SoapEnvelopeNamespace);
 301                         xtw.WriteAttributeString ("xmlns", "xsi", null, XmlSchema.InstanceNamespace);
 302                         xtw.WriteAttributeString ("xmlns", "xsd", null, XmlSchema.Namespace);
 303
 304                         if (bodyUse == SoapBindingUse.Encoded)
 305                         {
 306                                 xtw.WriteAttributeString ("xmlns", "soapenc", null, SoapEncodingNamespace);
 307                                 xtw.WriteAttributeString ("xmlns", "tns", null, msg.Message.Namespace);
 308                         }
 309
 310                         // Serialize headers
 311                         foreach (object ob in msgbin.Extensions)
 312                         {
 313                                 SoapHeaderBinding hb = ob as SoapHeaderBinding;
 314                                 if (hb == null) continue;
 315
 316                                 xtw.WriteStartElement ("soap", "Header", SoapEnvelopeNamespace);
 317                                 WriteHeader (xtw, hb);
 318                                 xtw.WriteEndElement ();
 319                         }
 320
 321                         // Serialize body
 322                         xtw.WriteStartElement ("soap", "Body", SoapEnvelopeNamespace);
 323
 324                         currentUse = bodyUse;
 325                         WriteBody (xtw, oper, msg, sbb, style);
 326
 327                         xtw.WriteEndElement ();
 328                         xtw.WriteEndElement ();
 329                         xtw.Close ();
 330                         return sw.ToString ();
 331                 }
 332
 333                 void WriteHeader (XmlTextWriter xtw, SoapHeaderBinding header)
 334                 {
 335                         Message msg = descriptions.GetMessage (header.Message);
 336                         if (msg == null) throw new InvalidOperationException ("Message " + header.Message + " not found");
 337                         MessagePart part = msg.Parts [header.Part];
 338                         if (part == null) throw new InvalidOperationException ("Message part " + header.Part + " not found in message " + header.Message);
 339
 340                         currentUse = header.Use;
 341
 342                         if (currentUse == SoapBindingUse.Literal)
 343                                 WriteRootElementSample (xtw, part.Element);
 344                         else
 345                                 WriteTypeSample (xtw, part.Type);
 346                 }
 347
 348                 void WriteBody (XmlTextWriter xtw, Operation oper, OperationMessage opm, SoapBodyBinding sbb, SoapBindingStyle style)
 349                 {
 350                         Message msg = descriptions.GetMessage (opm.Message);
 351                         if (msg.Parts.Count > 0 && msg.Parts[0].Name == "parameters")
 352                         {
 353                                 MessagePart part = msg.Parts[0];
 354                                 if (part.Element == XmlQualifiedName.Empty)
 355                                         WriteTypeSample (xtw, part.Type);
 356                                 else
 357                                         WriteRootElementSample (xtw, part.Element);
 358                         }
 359                         else
 360                         {
 361                                 string elemName = oper.Name;
 362                                 string ns = "";
 363                                 if (opm is OperationOutput) elemName += "Response";
 364
 365                                 if (style == SoapBindingStyle.Rpc) {
 366                                         xtw.WriteStartElement (elemName, sbb.Namespace);
 367                                         ns = sbb.Namespace;
 368                                 }
 369
 370                                 foreach (MessagePart part in msg.Parts)
 371                                 {
 372                                         if (part.Element == XmlQualifiedName.Empty)
 373                                         {
 374                                                 XmlSchemaElement elem = new XmlSchemaElement ();
 375                                                 elem.SchemaTypeName = part.Type;
 376                                                 elem.Name = part.Name;
 377                                                 WriteElementSample (xtw, ns, elem);
 378                                         }
 379                                         else
 380                                                 WriteRootElementSample (xtw, part.Element);
 381                                 }
 382
 383                                 if (style == SoapBindingStyle.Rpc)
 384                                         xtw.WriteEndElement ();
 385                         }
 386                         WriteQueuedTypeSamples (xtw);
 387                 }
 388
 389                 void WriteRootElementSample (XmlTextWriter xtw, XmlQualifiedName qname)
 390                 {
 391                         XmlSchemaElement elem = (XmlSchemaElement) schemas.Find (qname, typeof(XmlSchemaElement));
 392                         if (elem == null) throw new InvalidOperationException ("Element not found: " + qname);
 393                         WriteElementSample (xtw, qname.Namespace, elem);
 394                 }
 395
 396                 void WriteElementSample (XmlTextWriter xtw, string ns, XmlSchemaElement elem)
 397                 {
 398                         bool sharedAnnType = false;
 399                         XmlQualifiedName root;
 400
 401                         if (!elem.RefName.IsEmpty) {
 402                                 XmlSchemaElement refElem = FindRefElement (elem);
 403                                 if (refElem == null) throw new InvalidOperationException ("Global element not found: " + elem.RefName);
 404                                 root = elem.RefName;
 405                                 elem = refElem;
 406                                 sharedAnnType = true;
 407                         }
 408                         else
 409                                 root = new XmlQualifiedName (elem.Name, ns);
 410
 411                         if (!elem.SchemaTypeName.IsEmpty)
 412                         {
 413                                 XmlSchemaComplexType st = FindComplexTyype (elem.SchemaTypeName);
 414                                 if (st != null)
 415                                         WriteComplexTypeSample (xtw, st, root);
 416                                 else
 417                                 {
 418                                         xtw.WriteStartElement (root.Name, root.Namespace);
 419                                         if (currentUse == SoapBindingUse.Encoded)
 420                                                 xtw.WriteAttributeString ("type", XmlSchema.InstanceNamespace, GetQualifiedNameString (xtw, elem.SchemaTypeName));
 421                                         xtw.WriteString (GetLiteral (FindBuiltInType (elem.SchemaTypeName)));
 422                                         xtw.WriteEndElement ();
 423                                 }
 424                         }
 425                         else if (elem.SchemaType == null)
 426                         {
 427                                 xtw.WriteStartElement ("any");
 428                                 xtw.WriteEndElement ();
 429                         }
 430                         else
 431                                 WriteComplexTypeSample (xtw, (XmlSchemaComplexType) elem.SchemaType, root);
 432                 }
 433
 434                 void WriteTypeSample (XmlTextWriter xtw, XmlQualifiedName qname)
 435                 {
 436                         XmlSchemaComplexType ctype = FindComplexTyype (qname);
 437                         if (ctype != null) {
 438                                 WriteComplexTypeSample (xtw, ctype, qname);
 439                                 return;
 440                         }
 441
 442                         XmlSchemaSimpleType stype = (XmlSchemaSimpleType) schemas.Find (qname, typeof(XmlSchemaSimpleType));
 443                         if (stype != null) {
 444                                 WriteSimpleTypeSample (xtw, stype);
 445                                 return;
 446                         }
 447
 448                         xtw.WriteString (GetLiteral (FindBuiltInType (qname)));
 449                         throw new InvalidOperationException ("Type not found: " + qname);
 450                 }
 451
 452                 void WriteComplexTypeSample (XmlTextWriter xtw, XmlSchemaComplexType stype, XmlQualifiedName rootName)
 453                 {
 454                         WriteComplexTypeSample (xtw, stype, rootName, -1);
 455                 }
 456
 457                 void WriteComplexTypeSample (XmlTextWriter xtw, XmlSchemaComplexType stype, XmlQualifiedName rootName, int id)
 458                 {
 459                         string ns = rootName.Namespace;
 460
 461                         if (rootName.Name.IndexOf ("[]") != -1) rootName = arrayType;
 462
 463                         if (currentUse == SoapBindingUse.Encoded) {
 464                                 string pref = xtw.LookupPrefix (rootName.Namespace);
 465                                 if (pref == null) pref = "q1";
 466                                 xtw.WriteStartElement (pref, rootName.Name, rootName.Namespace);
 467                                 ns = "";
 468                         }
 469                         else
 470                                 xtw.WriteStartElement (rootName.Name, rootName.Namespace);
 471
 472                         if (id != -1)
 473                         {
 474                                 xtw.WriteAttributeString ("id", "id" + id);
 475                                 if (rootName != arrayType)
 476                                         xtw.WriteAttributeString ("type", XmlSchema.InstanceNamespace, GetQualifiedNameString (xtw, rootName));
 477                         }
 478
 479                         WriteComplexTypeAttributes (xtw, stype);
 480                         WriteComplexTypeElements (xtw, ns, stype);
 481
 482                         xtw.WriteEndElement ();
 483                 }
 484
 485                 void WriteComplexTypeAttributes (XmlTextWriter xtw, XmlSchemaComplexType stype)
 486                 {
 487                         WriteAttributes (xtw, stype.Attributes, stype.AnyAttribute);
 488                 }
 489
 490                 void WriteComplexTypeElements (XmlTextWriter xtw, string ns, XmlSchemaComplexType stype)
 491                 {
 492                         if (stype.Particle != null)
 493                                 WriteParticleComplexContent (xtw, ns, stype.Particle);
 494                         else
 495                         {
 496                                 if (stype.ContentModel is XmlSchemaSimpleContent)
 497                                         WriteSimpleContent (xtw, (XmlSchemaSimpleContent)stype.ContentModel);
 498                                 else if (stype.ContentModel is XmlSchemaComplexContent)
 499                                         WriteComplexContent (xtw, ns, (XmlSchemaComplexContent)stype.ContentModel);
 500                         }
 501                 }
 502
 503                 void WriteAttributes (XmlTextWriter xtw, XmlSchemaObjectCollection atts, XmlSchemaAnyAttribute anyat)
 504                 {
 505                         foreach (XmlSchemaObject at in atts)
 506                         {
 507                                 if (at is XmlSchemaAttribute)
 508                                 {
 509                                         string ns;
 510                                         XmlSchemaAttribute attr = (XmlSchemaAttribute)at;
 511                                         XmlSchemaAttribute refAttr = attr;
 512
 513                                         // refAttr.Form; TODO
 514
 515                                         if (!attr.RefName.IsEmpty) {
 516                                                 refAttr = FindRefAttribute (attr.RefName);
 517                                                 if (refAttr == null) throw new InvalidOperationException ("Global attribute not found: " + attr.RefName);
 518                                         }
 519
 520                                         string val;
 521                                         if (!refAttr.SchemaTypeName.IsEmpty) val = FindBuiltInType (refAttr.SchemaTypeName);
 522                                         else val = FindBuiltInType ((XmlSchemaSimpleType) refAttr.SchemaType);
 523
 524                                         xtw.WriteAttributeString (refAttr.Name, val);
 525                                 }
 526                                 else if (at is XmlSchemaAttributeGroupRef)
 527                                 {
 528                                         XmlSchemaAttributeGroupRef gref = (XmlSchemaAttributeGroupRef)at;
 529                                         XmlSchemaAttributeGroup grp = (XmlSchemaAttributeGroup) schemas.Find (gref.RefName, typeof(XmlSchemaAttributeGroup));
 530                                         WriteAttributes (xtw, grp.Attributes, grp.AnyAttribute);
 531                                 }
 532                         }
 533
 534                         if (anyat != null)
 535                                 xtw.WriteAttributeString ("custom-attribute","value");
 536                 }
 537
 538                 void WriteParticleComplexContent (XmlTextWriter xtw, string ns, XmlSchemaParticle particle)
 539                 {
 540                         WriteParticleContent (xtw, ns, particle, false);
 541                 }
 542
 543                 void WriteParticleContent (XmlTextWriter xtw, string ns, XmlSchemaParticle particle, bool multiValue)
 544                 {
 545                         if (particle is XmlSchemaGroupRef)
 546                                 particle = GetRefGroupParticle ((XmlSchemaGroupRef)particle);
 547
 548                         if (particle.MaxOccurs > 1) multiValue = true;
 549
 550                         if (particle is XmlSchemaSequence) {
 551                                 WriteSequenceContent (xtw, ns, ((XmlSchemaSequence)particle).Items, multiValue);
 552                         }
 553                         else if (particle is XmlSchemaChoice) {
 554                                 if (((XmlSchemaChoice)particle).Items.Count == 1)
 555                                         WriteSequenceContent (xtw, ns, ((XmlSchemaChoice)particle).Items, multiValue);
 556                                 else
 557                                         WriteChoiceContent (xtw, ns, (XmlSchemaChoice)particle, multiValue);
 558                         }
 559                         else if (particle is XmlSchemaAll) {
 560                                 WriteSequenceContent (xtw, ns, ((XmlSchemaAll)particle).Items, multiValue);
 561                         }
 562                 }
 563
 564                 void WriteSequenceContent (XmlTextWriter xtw, string ns, XmlSchemaObjectCollection items, bool multiValue)
 565                 {
 566                         foreach (XmlSchemaObject item in items)
 567                                 WriteContentItem (xtw, ns, item, multiValue);
 568                 }
 569
 570                 void WriteContentItem (XmlTextWriter xtw, string ns, XmlSchemaObject item, bool multiValue)
 571                 {
 572                         if (item is XmlSchemaGroupRef)
 573                                 item = GetRefGroupParticle ((XmlSchemaGroupRef)item);
 574
 575                         if (item is XmlSchemaElement)
 576                         {
 577                                 XmlSchemaElement elem = (XmlSchemaElement) item;
 578                                 XmlSchemaElement refElem;
 579                                 if (!elem.RefName.IsEmpty) refElem = FindRefElement (elem);
 580                                 else refElem = elem;
 581
 582                                 int num = (elem.MaxOccurs == 1 && !multiValue) ? 1 : 2;
 583                                 for (int n=0; n<num; n++)
 584                                 {
 585                                         if (currentUse == SoapBindingUse.Literal)
 586                                                 WriteElementSample (xtw, ns, refElem);
 587                                         else
 588                                                 WriteRefTypeSample (xtw, ns, refElem);
 589                                 }
 590                         }
 591                         else if (item is XmlSchemaAny)
 592                         {
 593                                 xtw.WriteString (GetLiteral ("xml"));
 594                         }
 595                         else if (item is XmlSchemaParticle) {
 596                                 WriteParticleContent (xtw, ns, (XmlSchemaParticle)item, multiValue);
 597                         }
 598                 }
 599
 600                 void WriteChoiceContent (XmlTextWriter xtw, string ns, XmlSchemaChoice choice, bool multiValue)
 601                 {
 602                         foreach (XmlSchemaObject item in choice.Items)
 603                                 WriteContentItem (xtw, ns, item, multiValue);
 604                 }
 605
 606                 void WriteSimpleContent (XmlTextWriter xtw, XmlSchemaSimpleContent content)
 607                 {
 608                         XmlSchemaSimpleContentExtension ext = content.Content as XmlSchemaSimpleContentExtension;
 609                         if (ext != null)
 610                                 WriteAttributes (xtw, ext.Attributes, ext.AnyAttribute);
 611
 612                         XmlQualifiedName qname = GetContentBaseType (content.Content);
 613                         xtw.WriteString (GetLiteral (FindBuiltInType (qname)));
 614                 }
 615
 616                 string FindBuiltInType (XmlQualifiedName qname)
 617                 {
 618                         if (qname.Namespace == XmlSchema.Namespace)
 619                                 return qname.Name;
 620
 621                         XmlSchemaComplexType ct = FindComplexTyype (qname);
 622                         if (ct != null)
 623                         {
 624                                 XmlSchemaSimpleContent sc = ct.ContentModel as XmlSchemaSimpleContent;
 625                                 if (sc == null) throw new InvalidOperationException ("Invalid schema");
 626                                 return FindBuiltInType (GetContentBaseType (sc.Content));
 627                         }
 628
 629                         XmlSchemaSimpleType st = (XmlSchemaSimpleType) schemas.Find (qname, typeof(XmlSchemaSimpleType));
 630                         if (st != null)
 631                                 return FindBuiltInType (st);
 632
 633                         throw new InvalidOperationException ("Definition of type " + qname + " not found");
 634                 }
 635
 636                 string FindBuiltInType (XmlSchemaSimpleType st)
 637                 {
 638                         if (st.Content is XmlSchemaSimpleTypeRestriction) {
 639                                 return FindBuiltInType (GetContentBaseType (st.Content));
 640                         }
 641                         else if (st.Content is XmlSchemaSimpleTypeList) {
 642                                 string s = FindBuiltInType (GetContentBaseType (st.Content));
 643                                 return s + " " + s + " ...";
 644                         }
 645                         else if (st.Content is XmlSchemaSimpleTypeUnion)
 646                         {
 647                                 // Check if all types of the union are equal. If not, then will use anyType.
 648                                 XmlSchemaSimpleTypeUnion uni = (XmlSchemaSimpleTypeUnion) st.Content;
 649                                 string utype = null;
 650
 651                                 // Anonymous types are unique
 652                                 if (uni.BaseTypes.Count != 0 && uni.MemberTypes.Length != 0)
 653                                         return "string";
 654
 655                                 foreach (XmlQualifiedName mt in uni.MemberTypes)
 656                                 {
 657                                         string qn = FindBuiltInType (mt);
 658                                         if (utype != null && qn != utype) return "string";
 659                                         else utype = qn;
 660                                 }
 661                                 return utype;
 662                         }
 663                         else
 664                                 return "string";
 665                 }
 666
 667
 668                 XmlQualifiedName GetContentBaseType (XmlSchemaObject ob)
 669                 {
 670                         if (ob is XmlSchemaSimpleContentExtension)
 671                                 return ((XmlSchemaSimpleContentExtension)ob).BaseTypeName;
 672                         else if (ob is XmlSchemaSimpleContentRestriction)
 673                                 return ((XmlSchemaSimpleContentRestriction)ob).BaseTypeName;
 674                         else if (ob is XmlSchemaSimpleTypeRestriction)
 675                                 return ((XmlSchemaSimpleTypeRestriction)ob).BaseTypeName;
 676                         else if (ob is XmlSchemaSimpleTypeList)
 677                                 return ((XmlSchemaSimpleTypeList)ob).ItemTypeName;
 678                         else
 679                                 return null;
 680                 }
 681
 682                 void WriteComplexContent (XmlTextWriter xtw, string ns, XmlSchemaComplexContent content)
 683                 {
 684                         XmlQualifiedName qname;
 685
 686                         XmlSchemaComplexContentExtension ext = content.Content as XmlSchemaComplexContentExtension;
 687                         if (ext != null) qname = ext.BaseTypeName;
 688                         else {
 689                                 XmlSchemaComplexContentRestriction rest = (XmlSchemaComplexContentRestriction)content.Content;
 690                                 qname = rest.BaseTypeName;
 691                                 if (qname == arrayType) {
 692                                         ParseArrayType (rest, out qname);
 693                                         XmlSchemaElement elem = new XmlSchemaElement ();
 694                                         elem.Name = "Item";
 695                                         elem.SchemaTypeName = qname;
 696
 697                                         xtw.WriteAttributeString ("arrayType", SoapEncodingNamespace, qname.Name + "[2]");
 698                                         WriteContentItem (xtw, ns, elem, true);
 699                                         return;
 700                                 }
 701                         }
 702
 703                         // Add base map members to this map
 704                         XmlSchemaComplexType ctype = FindComplexTyype (qname);
 705                         WriteComplexTypeAttributes (xtw, ctype);
 706
 707                         if (ext != null) {
 708                                 // Add the members of this map
 709                                 WriteAttributes (xtw, ext.Attributes, ext.AnyAttribute);
 710                                 if (ext.Particle != null)
 711                                         WriteParticleComplexContent (xtw, ns, ext.Particle);
 712                         }
 713
 714                         WriteComplexTypeElements (xtw, ns, ctype);
 715                 }
 716
 717                 void ParseArrayType (XmlSchemaComplexContentRestriction rest, out XmlQualifiedName qtype)
 718                 {
 719                         XmlSchemaAttribute arrayTypeAt = FindArrayAttribute (rest.Attributes);
 720                         XmlAttribute[] uatts = arrayTypeAt.UnhandledAttributes;
 721                         if (uatts == null || uatts.Length == 0) throw new InvalidOperationException ("arrayType attribute not specified in array declaration");
 722
 723                         XmlAttribute xat = null;
 724                         foreach (XmlAttribute at in uatts)
 725                                 if (at.LocalName == "arrayType" && at.NamespaceURI == WsdlNamespace)
 726                                         { xat = at; break; }
 727
 728                         if (xat == null)
 729                                 throw new InvalidOperationException ("arrayType attribute not specified in array declaration");
 730
 731                         string arrayType = xat.Value;
 732                         string type, ns;
 733                         int i = arrayType.LastIndexOf (":");
 734                         if (i == -1) ns = "";
 735                         else ns = arrayType.Substring (0,i);
 736
 737                         int j = arrayType.IndexOf ("[", i+1);
 738                         if (j == -1) throw new InvalidOperationException ("Cannot parse WSDL array type: " + arrayType);
 739                         type = arrayType.Substring (i+1);
 740                         type = type.Substring (0, type.Length-2);
 741
 742                         qtype = new XmlQualifiedName (type, ns);
 743                 }
 744
 745                 XmlSchemaAttribute FindArrayAttribute (XmlSchemaObjectCollection atts)
 746                 {
 747                         foreach (object ob in atts)
 748                         {
 749                                 XmlSchemaAttribute att = ob as XmlSchemaAttribute;
 750                                 if (att != null && att.RefName == arrayTypeRefName) return att;
 751
 752                                 XmlSchemaAttributeGroupRef gref = ob as XmlSchemaAttributeGroupRef;
 753                                 if (gref != null)
 754                                 {
 755                                         XmlSchemaAttributeGroup grp = (XmlSchemaAttributeGroup) schemas.Find (gref.RefName, typeof(XmlSchemaAttributeGroup));
 756                                         att = FindArrayAttribute (grp.Attributes);
 757                                         if (att != null) return att;
 758                                 }
 759                         }
 760                         return null;
 761                 }
 762
 763                 void WriteSimpleTypeSample (XmlTextWriter xtw, XmlSchemaSimpleType stype)
 764                 {
 765                         xtw.WriteString (GetLiteral (FindBuiltInType (stype)));
 766                 }
 767
 768                 XmlSchemaParticle GetRefGroupParticle (XmlSchemaGroupRef refGroup)
 769                 {
 770                         XmlSchemaGroup grp = (XmlSchemaGroup) schemas.Find (refGroup.RefName, typeof (XmlSchemaGroup));
 771                         return grp.Particle;
 772                 }
 773
 774                 XmlSchemaElement FindRefElement (XmlSchemaElement elem)
 775                 {
 776                         if (elem.RefName.Namespace == XmlSchema.Namespace)
 777                         {
 778                                 if (anyElement != null) return anyElement;
 779                                 anyElement = new XmlSchemaElement ();
 780                                 anyElement.Name = "any";
 781                                 anyElement.SchemaTypeName = anyType;
 782                                 return anyElement;
 783                         }
 784                         return (XmlSchemaElement) schemas.Find (elem.RefName, typeof(XmlSchemaElement));
 785                 }
 786
 787                 XmlSchemaAttribute FindRefAttribute (XmlQualifiedName refName)
 788                 {
 789                         if (refName.Namespace == XmlSchema.Namespace)
 790                         {
 791                                 XmlSchemaAttribute at = new XmlSchemaAttribute ();
 792                                 at.Name = refName.Name;
 793                                 at.SchemaTypeName = new XmlQualifiedName ("string",XmlSchema.Namespace);
 794                                 return at;
 795                         }
 796                         return (XmlSchemaAttribute) schemas.Find (refName, typeof(XmlSchemaAttribute));
 797                 }
 798
 799                 void WriteRefTypeSample (XmlTextWriter xtw, string ns, XmlSchemaElement elem)
 800                 {
 801                         if (elem.SchemaTypeName.Namespace == XmlSchema.Namespace || schemas.Find (elem.SchemaTypeName, typeof(XmlSchemaSimpleType)) != null)
 802                                 WriteElementSample (xtw, ns, elem);
 803                         else
 804                         {
 805                                 xtw.WriteStartElement (elem.Name, ns);
 806                                 xtw.WriteAttributeString ("href", "#id" + (queue.Count+1));
 807                                 xtw.WriteEndElement ();
 808                                 queue.Add (new EncodedType (ns, elem));
 809                         }
 810                 }
 811
 812                 void WriteQueuedTypeSamples (XmlTextWriter xtw)
 813                 {
 814                         for (int n=0; n<queue.Count; n++)
 815                         {
 816                                 EncodedType ec = (EncodedType) queue[n];
 817                                 XmlSchemaComplexType st = FindComplexTyype (ec.Element.SchemaTypeName);
 818                                 WriteComplexTypeSample (xtw, st, ec.Element.SchemaTypeName, n+1);
 819                         }
 820                 }
 821
 822                 XmlSchemaComplexType FindComplexTyype (XmlQualifiedName qname)
 823                 {
 824                         if (qname.Name.IndexOf ("[]") != -1)
 825                         {
 826                                 XmlSchemaComplexType stype = new XmlSchemaComplexType ();
 827                                 stype.ContentModel = new XmlSchemaComplexContent ();
 828
 829                                 XmlSchemaComplexContentRestriction res = new XmlSchemaComplexContentRestriction ();
 830                                 stype.ContentModel.Content = res;
 831                                 res.BaseTypeName = arrayType;
 832
 833                                 XmlSchemaAttribute att = new XmlSchemaAttribute ();
 834                                 att.RefName = arrayTypeRefName;
 835                                 res.Attributes.Add (att);
 836
 837                                 XmlAttribute xat = document.CreateAttribute ("arrayType", WsdlNamespace);
 838                                 xat.Value = qname.Namespace + ":" + qname.Name;
 839                                 att.UnhandledAttributes = new XmlAttribute[] {xat};
 840                                 return stype;
 841                         }
 842
 843                         return (XmlSchemaComplexType) schemas.Find (qname, typeof(XmlSchemaComplexType));
 844                 }
 845
 846                 string GetQualifiedNameString (XmlTextWriter xtw, XmlQualifiedName qname)
 847                 {
 848                         string pref = xtw.LookupPrefix (qname.Namespace);
 849                         if (pref != null) return pref + ":" + qname.Name;
 850
 851                         xtw.WriteAttributeString ("xmlns", "q1", null, qname.Namespace);
 852                         return "q1:" + qname.Name;
 853                 }
 854
 855                 protected virtual string GetLiteral (string s)
 856                 {
 857                         return s;
 858                 }
 859
 860                 void GetOperationFormat (OperationBinding obin, out SoapBindingStyle style, out SoapBindingUse use)
 861                 {
 862                         style = SoapBindingStyle.Document;
 863                         use = SoapBindingUse.Literal;
 864                         SoapOperationBinding sob = obin.Extensions.Find (typeof(SoapOperationBinding)) as SoapOperationBinding;
 865                         if (sob != null) {
 866                                 style = sob.Style;
 867                                 SoapBodyBinding sbb = obin.Input.Extensions.Find (typeof(SoapBodyBinding)) as SoapBodyBinding;
 868                                 if (sbb != null)
 869                                         use = sbb.Use;
 870                         }
 871                 }
 872         }
 873
 874
 875
 876 }
 877