mcs/class/referencesource/System.Xml/System/Xml/Schema/AutoValidator.cs

   1 //------------------------------------------------------------------------------
   2 // <copyright file="AutoValidator.cs" company="Microsoft">
   3 //     Copyright (c) Microsoft Corporation.  All rights reserved.
   4 // </copyright>
   5 // <owner current="true" primary="true">[....]</owner>
   6 //------------------------------------------------------------------------------
   7
   8 namespace System.Xml.Schema {
   9
  10     using System.Diagnostics;
  11     using System.Globalization;
  12
  13 #pragma warning disable 618
  14
  15     internal class AutoValidator : BaseValidator {
  16         const string x_schema = "x-schema";
  17
  18         public AutoValidator(XmlValidatingReaderImpl reader, XmlSchemaCollection schemaCollection, IValidationEventHandling eventHandling) : base(reader, schemaCollection, eventHandling) {
  19             schemaInfo = new SchemaInfo();
  20         }
  21
  22         public override bool PreserveWhitespace {
  23             get { return false; }
  24         }
  25
  26         public override void Validate() {
  27             ValidationType valType = DetectValidationType();
  28             switch(valType) {
  29                 case ValidationType.XDR:
  30                     reader.Validator = new XdrValidator(this);
  31                     reader.Validator.Validate();
  32                     break;
  33
  34                 case ValidationType.Schema:
  35                     reader.Validator = new XsdValidator(this);
  36                     reader.Validator.Validate();
  37                     break;
  38
  39                 case ValidationType.Auto:
  40                     break;
  41             }
  42         }
  43
  44         public override void CompleteValidation() {}
  45
  46         public override object  FindId(string name) {
  47             return null;
  48         }
  49
  50         private ValidationType DetectValidationType() {
  51             //Type not yet detected : Check in Schema Collection
  52             if (reader.Schemas != null && reader.Schemas.Count > 0) {
  53                  XmlSchemaCollectionEnumerator enumerator = reader.Schemas.GetEnumerator();
  54                  while (enumerator.MoveNext()) {
  55                     XmlSchemaCollectionNode node = enumerator.CurrentNode;
  56                     SchemaInfo schemaInfo = node.SchemaInfo;
  57                     if(schemaInfo.SchemaType == SchemaType.XSD)
  58                         return ValidationType.Schema;
  59                     else if(schemaInfo.SchemaType == SchemaType.XDR)
  60                         return ValidationType.XDR;
  61                  }
  62             }
  63
  64             if (reader.NodeType == XmlNodeType.Element) {
  65                 SchemaType schemaType = SchemaNames.SchemaTypeFromRoot(reader.LocalName, reader.NamespaceURI);
  66                 if (schemaType == SchemaType.XSD) {
  67                     return ValidationType.Schema;
  68                 }
  69                 else if (schemaType == SchemaType.XDR) {
  70                     return ValidationType.XDR;
  71                 }
  72                 else {
  73                     int count = reader.AttributeCount;
  74                     for (int i = 0; i < count ; i++) {
  75                         reader.MoveToAttribute(i);
  76                         string objectNs = reader.NamespaceURI;
  77                         string objectName = reader.LocalName;
  78                         if (Ref.Equal(objectNs, SchemaNames.NsXmlNs)) {
  79                             if(XdrBuilder.IsXdrSchema(reader.Value)) {
  80                                 reader.MoveToElement();
  81                                 return ValidationType.XDR;
  82                             }
  83                         }
  84                         else if (Ref.Equal(objectNs, SchemaNames.NsXsi)) {
  85                             reader.MoveToElement();
  86                             return ValidationType.Schema;
  87                         }
  88                         else if (Ref.Equal(objectNs, SchemaNames.QnDtDt.Namespace) && Ref.Equal(objectName, SchemaNames.QnDtDt.Name)) {
  89                             reader.SchemaTypeObject = XmlSchemaDatatype.FromXdrName(reader.Value);
  90                             reader.MoveToElement();
  91                             return ValidationType.XDR;
  92                         }
  93                     } //end of for
  94                     if(count > 0) {
  95                         reader.MoveToElement();
  96                     }
  97                 }
  98             }
  99             return ValidationType.Auto;
 100         }
 101
 102     }
 103 #pragma warning restore 618
 104
 105 }
 106
 107