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

   1 //
   2 // System.Xml.Schema.XmlSchemaAttributeGroupRef.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 XmlSchemaAttributeGroupRef.
  37         /// </summary>
  38         public class XmlSchemaAttributeGroupRef : XmlSchemaAnnotated
  39         {
  40                 private XmlQualifiedName refName;
  41                 const string xmlname = "attributeGroup";
  42
  43                 public XmlSchemaAttributeGroupRef()
  44                 {
  45                         refName = XmlQualifiedName.Empty;
  46                 }
  47
  48                 [System.Xml.Serialization.XmlAttribute("ref")]
  49                 public XmlQualifiedName RefName
  50                 {
  51                         get{ return  refName; }
  52                         set{ refName = value; }
  53                 }
  54
  55                 /// <remarks>
  56                 /// 1. ref must be present
  57                 /// </remarks>
  58                 internal override int Compile(ValidationEventHandler h, XmlSchema schema)
  59                 {
  60                         // If this is already compiled this time, simply skip.
  61                         if (CompilationId == schema.CompilationId)
  62                                 return 0;
  63
  64                         errorCount = 0;
  65                         if(RefName == null || RefName.IsEmpty)
  66                                 error(h, "ref must be present");
  67                         else if(!XmlSchemaUtil.CheckQName(RefName))
  68                                 error(h, "ref must be a valid qname");
  69
  70                         XmlSchemaUtil.CompileID(Id,this, schema.IDCollection,h);
  71
  72                         this.CompilationId = schema.CompilationId;
  73                         return errorCount;
  74                 }
  75
  76                 internal override int Validate(ValidationEventHandler h, XmlSchema schema)
  77                 {
  78                         return errorCount;
  79                 }
  80
  81                 //<attributeGroup
  82                 //  id = ID
  83                 //  ref = QName
  84                 //  {any attributes with non-schema namespace . . .}>
  85                 //  Content: (annotation?)
  86                 //</attributeGroup>
  87                 internal static XmlSchemaAttributeGroupRef Read(XmlSchemaReader reader, ValidationEventHandler h)
  88                 {
  89                         XmlSchemaAttributeGroupRef attrgrp = new XmlSchemaAttributeGroupRef();
  90                         reader.MoveToElement();
  91
  92                         if(reader.NamespaceURI != XmlSchema.Namespace || reader.LocalName != xmlname)
  93                         {
  94                                 error(h,"Should not happen :1: XmlSchemaAttributeGroupRef.Read, name="+reader.Name,null);
  95                                 reader.SkipToEnd();
  96                                 return null;
  97                         }
  98
  99                         attrgrp.LineNumber = reader.LineNumber;
 100                         attrgrp.LinePosition = reader.LinePosition;
 101                         attrgrp.SourceUri = reader.BaseURI;
 102
 103                         while(reader.MoveToNextAttribute())
 104                         {
 105                                 if(reader.Name == "id")
 106                                 {
 107                                         attrgrp.Id = reader.Value;
 108                                 }
 109                                 else if(reader.Name == "ref")
 110                                 {
 111                                         Exception innerex;
 112                                         attrgrp.refName = XmlSchemaUtil.ReadQNameAttribute(reader,out innerex);
 113                                         if(innerex != null)
 114                                                 error(h, reader.Value + " is not a valid value for ref attribute",innerex);
 115                                 }
 116                                 else if((reader.NamespaceURI == "" && reader.Name != "xmlns") || reader.NamespaceURI == XmlSchema.Namespace)
 117                                 {
 118                                         error(h,reader.Name + " is not a valid attribute for attributeGroup in this context",null);
 119                                 }
 120                                 else
 121                                 {
 122                                         XmlSchemaUtil.ReadUnhandledAttribute(reader,attrgrp);
 123                                 }
 124                         }
 125
 126                         reader.MoveToElement();
 127                         if(reader.IsEmptyElement)
 128                                 return attrgrp;
 129                         int level = 1;
 130
 131                         while(reader.ReadNextElement())
 132                         {
 133                                 if(reader.NodeType == XmlNodeType.EndElement)
 134                                 {
 135                                         if(reader.LocalName != xmlname)
 136                                                 error(h,"Should not happen :2: XmlSchemaAttributeGroupRef.Read, name="+reader.Name,null);
 137                                         break;
 138                                 }
 139                                 if(level <= 1 && reader.LocalName == "annotation")
 140                                 {
 141                                         level = 2; //Only one annotation
 142                                         XmlSchemaAnnotation annotation = XmlSchemaAnnotation.Read(reader,h);
 143                                         if(annotation != null)
 144                                                 attrgrp.Annotation = annotation;
 145                                         continue;
 146                                 }
 147                                 reader.RaiseInvalidElementError();
 148                         }
 149                         return attrgrp;
 150                 }
 151         }
 152 }