mcs/class/System.XML/System.Xml.Schema/XmlSchemaSimpleContentExtension.cs

   1 //
   2 // System.Xml.Schema.XmlSchemaSimpleContentExtension.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 XmlSchemaSimpleContentExtension.
  37         /// </summary>
  38         public class XmlSchemaSimpleContentExtension : XmlSchemaContent
  39         {
  40
  41                 private XmlSchemaAnyAttribute any;
  42                 private XmlSchemaObjectCollection attributes;
  43                 private XmlQualifiedName baseTypeName;
  44                 const string xmlname = "extension";
  45
  46                 public XmlSchemaSimpleContentExtension()
  47                 {
  48                         baseTypeName = XmlQualifiedName.Empty;
  49                         attributes       = new XmlSchemaObjectCollection();
  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("attribute",typeof(XmlSchemaAttribute),Namespace=XmlSchema.Namespace)]
  60                 [XmlElement("attributeGroup",typeof(XmlSchemaAttributeGroupRef),Namespace=XmlSchema.Namespace)]
  61                 public XmlSchemaObjectCollection Attributes
  62                 {
  63                         get{ return attributes; }
  64                 }
  65
  66                 [XmlElement("anyAttribute",Namespace=XmlSchema.Namespace)]
  67                 public XmlSchemaAnyAttribute AnyAttribute
  68                 {
  69                         get{ return  any; }
  70                         set{ any = value; }
  71                 }
  72
  73                 // internal properties
  74                 internal override bool IsExtension {
  75                         get { return true; }
  76                 }
  77
  78                 ///<remarks>
  79                 /// 1. Base must be present and a QName
  80                 ///</remarks>
  81                 internal override int Compile(ValidationEventHandler h, XmlSchema schema)
  82                 {
  83                         // If this is already compiled this time, simply skip.
  84                         if (this.IsComplied (schema.CompilationId))
  85                                 return 0;
  86
  87                         if (this.isRedefinedComponent) {
  88                                 if (Annotation != null)
  89                                         Annotation.isRedefinedComponent = true;
  90                                 if (AnyAttribute != null)
  91                                         AnyAttribute.isRedefinedComponent = true;
  92                                 foreach (XmlSchemaObject obj in Attributes)
  93                                         obj.isRedefinedComponent = true;
  94                         }
  95
  96                         if(BaseTypeName == null || BaseTypeName.IsEmpty)
  97                         {
  98                                 error(h, "base must be present, as a QName");
  99                         }
 100                         else if(!XmlSchemaUtil.CheckQName(BaseTypeName))
 101                                 error(h,"BaseTypeName must be a QName");
 102
 103                         if(this.AnyAttribute != null)
 104                         {
 105                                 errorCount += AnyAttribute.Compile(h,schema);
 106                         }
 107
 108                         foreach(XmlSchemaObject obj in Attributes)
 109                         {
 110                                 if(obj is XmlSchemaAttribute)
 111                                 {
 112                                         XmlSchemaAttribute attr = (XmlSchemaAttribute) obj;
 113                                         errorCount += attr.Compile(h,schema);
 114                                 }
 115                                 else if(obj is XmlSchemaAttributeGroupRef)
 116                                 {
 117                                         XmlSchemaAttributeGroupRef atgrp = (XmlSchemaAttributeGroupRef) obj;
 118                                         errorCount += atgrp.Compile(h,schema);
 119                                 }
 120                                 else
 121                                         error(h,obj.GetType() +" is not valid in this place::SimpleConentExtension");
 122                         }
 123
 124                         XmlSchemaUtil.CompileID(Id,this,schema.IDCollection,h);
 125
 126                         this.CompilationId = schema.CompilationId;
 127                         return errorCount;
 128                 }
 129
 130                 internal override XmlQualifiedName GetBaseTypeName ()
 131                 {
 132                         return baseTypeName;
 133                 }
 134
 135                 internal override XmlSchemaParticle GetParticle ()
 136                 {
 137                         return null;
 138                 }
 139
 140                 internal override int Validate(ValidationEventHandler h, XmlSchema schema)
 141                 {
 142                         if (IsValidated (schema.ValidationId))
 143                                 return errorCount;
 144
 145                         XmlSchemaType st = schema.SchemaTypes [baseTypeName] as XmlSchemaType;
 146                         if (st != null) {
 147                                 XmlSchemaComplexType ct = st as XmlSchemaComplexType;
 148                                 if (ct != null && ct.ContentModel is XmlSchemaComplexContent)
 149                                         error (h, "Specified type is complex type which contains complex content.");
 150                                 st.Validate (h, schema);
 151                                 actualBaseSchemaType = st;
 152                         } else if (baseTypeName == XmlSchemaComplexType.AnyTypeName) {
 153                                 actualBaseSchemaType = XmlSchemaComplexType.AnyType;
 154                         } else if (XmlSchemaUtil.IsBuiltInDatatypeName (baseTypeName)) {
 155                                 actualBaseSchemaType = XmlSchemaDatatype.FromName (baseTypeName);
 156                                 if (actualBaseSchemaType == null)
 157                                         error (h, "Invalid schema datatype name is specified.");
 158                         }
 159                         // otherwise, it might be missing sub components.
 160                         else if (!schema.IsNamespaceAbsent (baseTypeName.Namespace))
 161                                 error (h, "Referenced base schema type " + baseTypeName + " was not found in the corresponding schema.");
 162
 163                         ValidationId = schema.ValidationId;
 164                         return errorCount;
 165                 }
 166
 167                 //<extension
 168                 //base = QName
 169                 //id = ID
 170                 //{any attributes with non-schema namespace . . .}>
 171                 //Content: (annotation?, ((attribute | attributeGroup)*, anyAttribute?))
 172                 //</extension>
 173                 internal static XmlSchemaSimpleContentExtension Read(XmlSchemaReader reader, ValidationEventHandler h)
 174                 {
 175                         XmlSchemaSimpleContentExtension extension = new XmlSchemaSimpleContentExtension();
 176                         reader.MoveToElement();
 177
 178                         if(reader.NamespaceURI != XmlSchema.Namespace || reader.LocalName != xmlname)
 179                         {
 180                                 error(h,"Should not happen :1: XmlSchemaAttributeGroup.Read, name="+reader.Name,null);
 181                                 reader.Skip();
 182                                 return null;
 183                         }
 184
 185                         extension.LineNumber = reader.LineNumber;
 186                         extension.LinePosition = reader.LinePosition;
 187                         extension.SourceUri = reader.BaseURI;
 188
 189                         while(reader.MoveToNextAttribute())
 190                         {
 191                                 if(reader.Name == "base")
 192                                 {
 193                                         Exception innerex;
 194                                         extension.baseTypeName= XmlSchemaUtil.ReadQNameAttribute(reader,out innerex);
 195                                         if(innerex != null)
 196                                                 error(h, reader.Value + " is not a valid value for base attribute",innerex);
 197                                 }
 198                                 else if(reader.Name == "id")
 199                                 {
 200                                         extension.Id = reader.Value;
 201                                 }
 202                                 else if((reader.NamespaceURI == "" && reader.Name != "xmlns") || reader.NamespaceURI == XmlSchema.Namespace)
 203                                 {
 204                                         error(h,reader.Name + " is not a valid attribute for extension in this context",null);
 205                                 }
 206                                 else
 207                                 {
 208                                         XmlSchemaUtil.ReadUnhandledAttribute(reader,extension);
 209                                 }
 210                         }
 211
 212                         reader.MoveToElement();
 213                         if(reader.IsEmptyElement)
 214                                 return extension;
 215
 216                         //Content: 1.annotation?, 2.(attribute | attributeGroup)*, 3.anyAttribute?
 217                         int level = 1;
 218                         while(reader.ReadNextElement())
 219                         {
 220                                 if(reader.NodeType == XmlNodeType.EndElement)
 221                                 {
 222                                         if(reader.LocalName != xmlname)
 223                                                 error(h,"Should not happen :2: XmlSchemaSimpleContentExtension.Read, name="+reader.Name,null);
 224                                         break;
 225                                 }
 226                                 if(level <= 1 && reader.LocalName == "annotation")
 227                                 {
 228                                         level = 2; //Only one annotation
 229                                         XmlSchemaAnnotation annotation = XmlSchemaAnnotation.Read(reader,h);
 230                                         if(annotation != null)
 231                                                 extension.Annotation = annotation;
 232                                         continue;
 233                                 }
 234                                 if(level <= 2)
 235                                 {
 236                                         if(reader.LocalName == "attribute")
 237                                         {
 238                                                 level = 2;
 239                                                 XmlSchemaAttribute attr = XmlSchemaAttribute.Read(reader,h);
 240                                                 if(attr != null)
 241                                                         extension.Attributes.Add(attr);
 242                                                 continue;
 243                                         }
 244                                         if(reader.LocalName == "attributeGroup")
 245                                         {
 246                                                 level = 2;
 247                                                 XmlSchemaAttributeGroupRef attr = XmlSchemaAttributeGroupRef.Read(reader,h);
 248                                                 if(attr != null)
 249                                                         extension.attributes.Add(attr);
 250                                                 continue;
 251                                         }
 252                                 }
 253                                 if(level <= 3 && reader.LocalName == "anyAttribute")
 254                                 {
 255                                         level = 4;
 256                                         XmlSchemaAnyAttribute anyattr = XmlSchemaAnyAttribute.Read(reader,h);
 257                                         if(anyattr != null)
 258                                                 extension.AnyAttribute = anyattr;
 259                                         continue;
 260                                 }
 261                                 reader.RaiseInvalidElementError();
 262                         }
 263                         return extension;
 264                 }
 265         }
 266 }