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// Author: Dwivedi, Ajay kumar
// Adwiv@Yahoo.com
using System;
using System.Xml;
using System.Xml.Serialization;
namespace System.Xml.Schema
{
/// <summary>
/// Summary description for XmlSchemaImport.
/// </summary>
public class XmlSchemaImport : XmlSchemaExternal
{
private XmlSchemaAnnotation annotation;
private string nameSpace;
private static string xmlname = "import";
public XmlSchemaImport()
{
}
[System.Xml.Serialization.XmlAttribute("namespace")]
public string Namespace
{
get{ return nameSpace; }
set{ nameSpace = value; }
}
[XmlElement("annotation",Namespace="http://www.w3.org/2001/XMLSchema")]
public XmlSchemaAnnotation Annotation
{
get{ return annotation; }
set{ annotation = value; }
}
//<import
// id = ID
// namespace = anyURI
// schemaLocation = anyURI
// {any attributes with non-schema namespace . . .}>
// Content: (annotation?)
//</import>
internal static XmlSchemaImport Read(XmlSchemaReader reader, ValidationEventHandler h)
{
XmlSchemaImport import = new XmlSchemaImport();
reader.MoveToElement();
if(reader.NamespaceURI != XmlSchema.Namespace || reader.LocalName != "import")
{
error(h,"Should not happen :1: XmlSchemaImport.Read, name="+reader.Name,null);
reader.SkipToEnd();
return null;
}
import.LineNumber = reader.LineNumber;
import.LinePosition = reader.LinePosition;
import.SourceUri = reader.BaseURI;
while(reader.MoveToNextAttribute())
{
if(reader.Name == "id")
{
import.Id = reader.Value;
}
else if(reader.Name == "namespace")
{
import.nameSpace = reader.Value;
}
else if(reader.Name == "schemaLocation")
{
import.SchemaLocation = reader.Value;
}
else if((reader.NamespaceURI == "" && reader.Name != "xmlns") || reader.NamespaceURI == XmlSchema.Namespace)
{
error(h,reader.Name + " is not a valid attribute for import",null);
}
else
{
XmlSchemaUtil.ReadUnhandledAttribute(reader,import);
}
}
reader.MoveToElement();
if(reader.IsEmptyElement)
return import;
// Content: (annotation?)
int level = 1;
while(reader.ReadNextElement())
{
if(reader.NodeType == XmlNodeType.EndElement)
{
if(reader.LocalName != xmlname)
error(h,"Should not happen :2: XmlSchemaImport.Read, name="+reader.Name,null);
break;
}
if(level <= 1 && reader.LocalName == "annotation")
{
level = 2; //Only one annotation
XmlSchemaAnnotation annotation = XmlSchemaAnnotation.Read(reader,h);
if(annotation != null)
import.Annotation = annotation;
continue;
}
reader.RaiseInvalidElementError();
}
return import;
}
}
}
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