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

   1 // Author: Dwivedi, Ajay kumar
   2 //            Adwiv@Yahoo.com
   3
   4 //
   5 // Permission is hereby granted, free of charge, to any person obtaining
   6 // a copy of this software and associated documentation files (the
   7 // "Software"), to deal in the Software without restriction, including
   8 // without limitation the rights to use, copy, modify, merge, publish,
   9 // distribute, sublicense, and/or sell copies of the Software, and to
  10 // permit persons to whom the Software is furnished to do so, subject to
  11 // the following conditions:
  12 //
  13 // The above copyright notice and this permission notice shall be
  14 // included in all copies or substantial portions of the Software.
  15 //
  16 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  17 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  19 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  20 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  21 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  22 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23 //
  24 using System;
  25 using System.Xml;
  26 using System.Xml.Serialization;
  27
  28 namespace System.Xml.Schema
  29 {
  30         /// <summary>
  31         /// Summary description for XmlSchemaImport.
  32         /// </summary>
  33         public class XmlSchemaImport : XmlSchemaExternal
  34         {
  35                 private XmlSchemaAnnotation annotation;
  36                 private string nameSpace;
  37                 const string xmlname = "import";
  38
  39                 public XmlSchemaImport()
  40                 {
  41                 }
  42
  43                 [System.Xml.Serialization.XmlAttribute("namespace", DataType="anyURI")]
  44                 public string Namespace
  45                 {
  46                         get{ return  nameSpace; }
  47                         set{ nameSpace = value; }
  48                 }
  49
  50                 [XmlElement("annotation", Type=typeof (XmlSchemaAnnotation))]
  51                 public XmlSchemaAnnotation Annotation
  52                 {
  53                         get{ return  annotation; }
  54                         set{ annotation = value; }
  55                 }
  56                 //<import
  57                 //  id = ID
  58                 //  namespace = anyURI
  59                 //  schemaLocation = anyURI
  60                 //  {any attributes with non-schema namespace . . .}>
  61                 //  Content: (annotation?)
  62                 //</import>
  63                 internal static XmlSchemaImport Read(XmlSchemaReader reader, ValidationEventHandler h)
  64                 {
  65                         XmlSchemaImport import = new XmlSchemaImport();
  66                         reader.MoveToElement();
  67
  68                         if(reader.NamespaceURI != XmlSchema.Namespace || reader.LocalName != "import")
  69                         {
  70                                 error(h,"Should not happen :1: XmlSchemaImport.Read, name="+reader.Name,null);
  71                                 reader.SkipToEnd();
  72                                 return null;
  73                         }
  74
  75                         import.LineNumber = reader.LineNumber;
  76                         import.LinePosition = reader.LinePosition;
  77                         import.SourceUri = reader.BaseURI;
  78
  79                         while(reader.MoveToNextAttribute())
  80                         {
  81                                 if(reader.Name == "id")
  82                                 {
  83                                         import.Id = reader.Value;
  84                                 }
  85                                 else if(reader.Name == "namespace")
  86                                 {
  87                                         import.nameSpace = reader.Value;
  88                                 }
  89                                 else if(reader.Name == "schemaLocation")
  90                                 {
  91                                         import.SchemaLocation = reader.Value;
  92                                 }
  93                                 else if((reader.NamespaceURI == "" && reader.Name != "xmlns") || reader.NamespaceURI == XmlSchema.Namespace)
  94                                 {
  95                                         error(h,reader.Name + " is not a valid attribute for import",null);
  96                                 }
  97                                 else
  98                                 {
  99                                         XmlSchemaUtil.ReadUnhandledAttribute(reader,import);
 100                                 }
 101                         }
 102
 103                         reader.MoveToElement();
 104                         if(reader.IsEmptyElement)
 105                                 return import;
 106
 107                         //  Content: (annotation?)
 108                         int level = 1;
 109                         while(reader.ReadNextElement())
 110                         {
 111                                 if(reader.NodeType == XmlNodeType.EndElement)
 112                                 {
 113                                         if(reader.LocalName != xmlname)
 114                                                 error(h,"Should not happen :2: XmlSchemaImport.Read, name="+reader.Name,null);
 115                                         break;
 116                                 }
 117                                 if(level <= 1 && reader.LocalName == "annotation")
 118                                 {
 119                                         level = 2;      //Only one annotation
 120                                         XmlSchemaAnnotation annotation = XmlSchemaAnnotation.Read(reader,h);
 121                                         if(annotation != null)
 122                                                 import.Annotation = annotation;
 123                                         continue;
 124                                 }
 125                                 reader.RaiseInvalidElementError();
 126                         }
 127                         return import;
 128                 }
 129         }
 130 }