class/System.XML/System.Xml.Schema/XmlSchemaComplexContentExtension.cs

   1 //
   2 // System.Xml.Schema.XmlSchemaComplexContentExtension.cs
   3 //
   4 // Author:
   5 //      Dwivedi, Ajay kumar  Adwiv@Yahoo.com
   6 //      Atsushi Enomoto  ginga@kit.hi-ho.ne.jp
   7 //
   8
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29 using System;
  30 using System.Xml;
  31 using System.Xml.Serialization;
  32
  33 namespace System.Xml.Schema
  34 {
  35         /// <summary>
  36         /// Summary description for XmlSchemaComplexContentExtension.
  37         /// </summary>
  38         public class XmlSchemaComplexContentExtension : XmlSchemaContent
  39         {
  40                 private XmlSchemaAnyAttribute any;
  41                 private XmlSchemaObjectCollection attributes;
  42                 private XmlQualifiedName baseTypeName;
  43                 private XmlSchemaParticle particle;
  44                 const string xmlname = "extension";
  45
  46                 public XmlSchemaComplexContentExtension()
  47                 {
  48                         attributes = new XmlSchemaObjectCollection();
  49                         baseTypeName = XmlQualifiedName.Empty;
  50                 }
  51
  52                 [System.Xml.Serialization.XmlAttribute("base")]
  53                 public XmlQualifiedName BaseTypeName
  54                 {
  55                         get{ return  baseTypeName; }
  56                         set{ baseTypeName = value; }
  57                 }
  58
  59                 [XmlElement("group",typeof(XmlSchemaGroupRef))]
  60                 [XmlElement("all",typeof(XmlSchemaAll))]
  61                 [XmlElement("choice",typeof(XmlSchemaChoice))]
  62                 [XmlElement("sequence",typeof(XmlSchemaSequence))]
  63                 public XmlSchemaParticle Particle
  64                 {
  65                         get{ return  particle; }
  66                         set{ particle = value; }
  67                 }
  68
  69                 [XmlElement("attribute",typeof(XmlSchemaAttribute))]
  70                 [XmlElement("attributeGroup",typeof(XmlSchemaAttributeGroupRef))]
  71                 public XmlSchemaObjectCollection Attributes
  72                 {
  73                         get{ return attributes; }
  74                 }
  75
  76                 [XmlElement("anyAttribute")]
  77                 public XmlSchemaAnyAttribute AnyAttribute
  78                 {
  79                         get{ return any; }
  80                         set{ any = value;}
  81                 }
  82
  83                 // internal properties
  84                 internal override bool IsExtension {
  85                         get { return true; }
  86                 }
  87
  88                 internal override void SetParent (XmlSchemaObject parent)
  89                 {
  90                         base.SetParent (parent);
  91                         if (Particle != null)
  92                                 Particle.SetParent (this);
  93                         if (AnyAttribute != null)
  94                                 AnyAttribute.SetParent (this);
  95                         foreach (XmlSchemaObject obj in Attributes)
  96                                 obj.SetParent (this);
  97                 }
  98
  99                 /// <remarks>
 100                 /// </remarks>
 101                 internal override int Compile(ValidationEventHandler h, XmlSchema schema)
 102                 {
 103                         // If this is already compiled this time, simply skip.
 104                         if (CompilationId == schema.CompilationId)
 105                                 return 0;
 106
 107                         if (this.isRedefinedComponent) {
 108                                 if (Annotation != null)
 109                                         Annotation.isRedefinedComponent = true;
 110                                 if (AnyAttribute != null)
 111                                         AnyAttribute.isRedefinedComponent  = true;
 112                                 foreach (XmlSchemaObject obj in Attributes)
 113                                         obj.isRedefinedComponent  = true;
 114                                 if (Particle != null)
 115                                         Particle.isRedefinedComponent  = true;
 116                         }
 117
 118                         if(BaseTypeName == null || BaseTypeName.IsEmpty)
 119                         {
 120                                 error(h, "base must be present, as a QName");
 121                         }
 122                         else if(!XmlSchemaUtil.CheckQName(BaseTypeName))
 123                                 error(h,"BaseTypeName is not a valid XmlQualifiedName");
 124
 125                         if(this.AnyAttribute != null)
 126                         {
 127                                 errorCount += AnyAttribute.Compile(h, schema);
 128                         }
 129
 130                         foreach(XmlSchemaObject obj in Attributes)
 131                         {
 132                                 if(obj is XmlSchemaAttribute)
 133                                 {
 134                                         XmlSchemaAttribute attr = (XmlSchemaAttribute) obj;
 135                                         errorCount += attr.Compile(h, schema);
 136                                 }
 137                                 else if(obj is XmlSchemaAttributeGroupRef)
 138                                 {
 139                                         XmlSchemaAttributeGroupRef atgrp = (XmlSchemaAttributeGroupRef) obj;
 140                                         errorCount += atgrp.Compile(h, schema);
 141                                 }
 142                                 else
 143                                         error(h,obj.GetType() +" is not valid in this place::ComplexConetnetExtension");
 144                         }
 145
 146                         if(Particle != null)
 147                         {
 148                                 if(Particle is XmlSchemaGroupRef)
 149                                 {
 150                                         errorCount += ((XmlSchemaGroupRef)Particle).Compile(h, schema);
 151                                 }
 152                                 else if(Particle is XmlSchemaAll)
 153                                 {
 154                                         errorCount += ((XmlSchemaAll)Particle).Compile(h, schema);
 155                                 }
 156                                 else if(Particle is XmlSchemaChoice)
 157                                 {
 158                                         errorCount += ((XmlSchemaChoice)Particle).Compile(h, schema);
 159                                 }
 160                                 else if(Particle is XmlSchemaSequence)
 161                                 {
 162                                         errorCount += ((XmlSchemaSequence)Particle).Compile(h, schema);
 163                                 }
 164                                 else
 165                                         error (h, "Particle of a restriction is limited only to group, sequence, choice and all.");
 166                         }
 167
 168                         XmlSchemaUtil.CompileID(Id,this, schema.IDCollection,h);
 169
 170                         this.CompilationId = schema.CompilationId;
 171                         return errorCount;
 172                 }
 173
 174                 internal override XmlQualifiedName GetBaseTypeName ()
 175                 {
 176                         return baseTypeName;
 177                 }
 178
 179                 internal override XmlSchemaParticle GetParticle ()
 180                 {
 181                         return particle;
 182                 }
 183
 184                 internal override int Validate(ValidationEventHandler h, XmlSchema schema)
 185                 {
 186                         if (IsValidated (schema.ValidationId))
 187                                 return errorCount;
 188
 189                         if (AnyAttribute != null)
 190                                 errorCount += AnyAttribute.Validate (h, schema);
 191                         foreach (XmlSchemaObject attrObj in Attributes)
 192                                 errorCount += attrObj.Validate (h, schema);
 193                         if (Particle != null)
 194                                 errorCount += Particle.Validate (h, schema);
 195
 196                         ValidationId = schema.ValidationId;
 197                         return errorCount;
 198                 }
 199                 //<extension
 200                 //  base = QName
 201                 //  id = ID
 202                 //  {any attributes with non-schema namespace . . .}>
 203                 //  Content: (annotation?, ((group | all | choice | sequence)?, ((attribute | attributeGroup)*, anyAttribute?)))
 204                 //</extension>
 205                 internal static XmlSchemaComplexContentExtension Read(XmlSchemaReader reader, ValidationEventHandler h)
 206                 {
 207                         XmlSchemaComplexContentExtension extension = new XmlSchemaComplexContentExtension();
 208                         reader.MoveToElement();
 209
 210                         if(reader.NamespaceURI != XmlSchema.Namespace || reader.LocalName != xmlname)
 211                         {
 212                                 error(h,"Should not happen :1: XmlSchemaComplexContentExtension.Read, name="+reader.Name,null);
 213                                 reader.Skip();
 214                                 return null;
 215                         }
 216
 217                         extension.LineNumber = reader.LineNumber;
 218                         extension.LinePosition = reader.LinePosition;
 219                         extension.SourceUri = reader.BaseURI;
 220
 221                         while(reader.MoveToNextAttribute())
 222                         {
 223                                 if(reader.Name == "base")
 224                                 {
 225                                         Exception innerex;
 226                                         extension.baseTypeName = XmlSchemaUtil.ReadQNameAttribute(reader,out innerex);
 227                                         if(innerex != null)
 228                                                 error(h, reader.Value + " is not a valid value for base attribute",innerex);
 229                                 }
 230                                 else if(reader.Name == "id")
 231                                 {
 232                                         extension.Id = reader.Value;
 233                                 }
 234                                 else if((reader.NamespaceURI == "" && reader.Name != "xmlns") || reader.NamespaceURI == XmlSchema.Namespace)
 235                                 {
 236                                         error(h,reader.Name + " is not a valid attribute for extension",null);
 237                                 }
 238                                 else
 239                                 {
 240                                         XmlSchemaUtil.ReadUnhandledAttribute(reader,extension);
 241                                 }
 242                         }
 243
 244                         reader.MoveToElement();
 245                         if(reader.IsEmptyElement)
 246                                 return extension;
 247                         //Content: 1. annotation?,
 248                         //                      (2.(group | all | choice | sequence)?, (3.(attribute | attributeGroup)*, 4.anyAttribute?)))
 249                         int level = 1;
 250                         while(reader.ReadNextElement())
 251                         {
 252                                 if(reader.NodeType == XmlNodeType.EndElement)
 253                                 {
 254                                         if(reader.LocalName != xmlname)
 255                                                 error(h,"Should not happen :2: XmlSchemaComplexContentExtension.Read, name="+reader.Name,null);
 256                                         break;
 257                                 }
 258                                 if(level <= 1 && reader.LocalName == "annotation")
 259                                 {
 260                                         level = 2; //Only one annotation
 261                                         XmlSchemaAnnotation annotation = XmlSchemaAnnotation.Read(reader,h);
 262                                         if(annotation != null)
 263                                                 extension.Annotation = annotation;
 264                                         continue;
 265                                 }
 266                                 if(level <= 2)
 267                                 {
 268                                         if(reader.LocalName == "group")
 269                                         {
 270                                                 level = 3;
 271                                                 XmlSchemaGroupRef group = XmlSchemaGroupRef.Read(reader,h);
 272                                                 if(group != null)
 273                                                         extension.particle = group;
 274                                                 continue;
 275                                         }
 276                                         if(reader.LocalName == "all")
 277                                         {
 278                                                 level = 3;
 279                                                 XmlSchemaAll all = XmlSchemaAll.Read(reader,h);
 280                                                 if(all != null)
 281                                                         extension.particle = all;
 282                                                 continue;
 283                                         }
 284                                         if(reader.LocalName == "choice")
 285                                         {
 286                                                 level = 3;
 287                                                 XmlSchemaChoice choice = XmlSchemaChoice.Read(reader,h);
 288                                                 if(choice != null)
 289                                                         extension.particle = choice;
 290                                                 continue;
 291                                         }
 292                                         if(reader.LocalName == "sequence")
 293                                         {
 294                                                 level = 3;
 295                                                 XmlSchemaSequence sequence = XmlSchemaSequence.Read(reader,h);
 296                                                 if(sequence != null)
 297                                                         extension.particle = sequence;
 298                                                 continue;
 299                                         }
 300                                 }
 301                                 if(level <= 3)
 302                                 {
 303                                         if(reader.LocalName == "attribute")
 304                                         {
 305                                                 level = 3;
 306                                                 XmlSchemaAttribute attr = XmlSchemaAttribute.Read(reader,h);
 307                                                 if(attr != null)
 308                                                         extension.Attributes.Add(attr);
 309                                                 continue;
 310                                         }
 311                                         if(reader.LocalName == "attributeGroup")
 312                                         {
 313                                                 level = 3;
 314                                                 XmlSchemaAttributeGroupRef attr = XmlSchemaAttributeGroupRef.Read(reader,h);
 315                                                 if(attr != null)
 316                                                         extension.attributes.Add(attr);
 317                                                 continue;
 318                                         }
 319                                 }
 320                                 if(level <= 4 && reader.LocalName == "anyAttribute")
 321                                 {
 322                                         level = 5;
 323                                         XmlSchemaAnyAttribute anyattr = XmlSchemaAnyAttribute.Read(reader,h);
 324                                         if(anyattr != null)
 325                                                 extension.AnyAttribute = anyattr;
 326                                         continue;
 327                                 }
 328                                 reader.RaiseInvalidElementError();
 329                         }
 330                         return extension;
 331                 }
 332         }
 333 }