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

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