private static DomObject CreateElement(XmlReader reader, DomMetaElement metaElement)
{
DomComplexType type = metaElement.Type;
// Check for xsi:type attribute, indicating a derived type
string typeName = reader.GetAttribute("xsi:type");
if (typeName != null)
{
// check for qualified type name
string prefix = string.Empty;
int index = typeName.IndexOf(':');
if (index >= 0)
{
prefix = typeName.Substring(0, index);
index++;
typeName = typeName.Substring(index, typeName.Length - index);
}
string ns = reader.LookupNamespace(prefix);
XmlQualifiedName qualifiedName = new XmlQualifiedName(typeName, ns);
type = DomSchemaRegistry.GetComplexType(qualifiedName);
if (type == null)
{
throw new InvalidOperationException("Unknown derived type");
}
}
return(new DomObject(type));
}
private DomObject ReadInternal(Stream stream)
{
DomObject rootDomObject;
using (XmlReader reader = XmlReader.Create(stream))
{
reader.MoveToContent();
string ns = reader.NamespaceURI;
XmlQualifiedName rootElementName = new XmlQualifiedName(reader.LocalName, ns);
DomMetaElement rootElement = DomSchemaRegistry.GetRootElement(rootElementName);
if (rootElement == null)
{
throw new InvalidOperationException("Unknown root element");
}
rootDomObject = new DomObject(rootElement);
ReadElement(rootDomObject, reader);
reader.Close();
}
return(rootDomObject);
}
