public InformationServiceQuery(InformationServiceContext context, string query, PropertyBag parameters)
: base(context, query, parameters)
{
object[] attributes = type.GetCustomAttributes(typeof(InformationServiceEntityAttribute), false);
if (attributes.Length > 0)
{
InformationServiceEntityAttribute entityAttribute = attributes[0] as InformationServiceEntityAttribute;
parser = entityAttribute != null?ChooseResponseParser(entityAttribute.ParserType) : new ResponseParser <T>();
}
else
{
parser = new ResponseParser <T>();
}
}
private void BeginRootEntity(XmlReader reader)
{
// Assumptions:
// - expecting top level elements to be entities of the type expected by the query
// - name must match exactly between the XML element and the type name
// - not handling simple scalar results at this point, only classes/structs with properties
// - not handling fields
if (String.CompareOrdinal(rootType.Name, reader.LocalName) != 0)
{
bool matchEntityName = false;
object[] attributes = rootType.GetCustomAttributes(typeof(InformationServiceEntityAttribute), true);
if (attributes.Length > 0)
{
InformationServiceEntityAttribute entityAttribute = attributes[0] as InformationServiceEntityAttribute;
matchEntityName = entityAttribute.EntityType.Equals(entityInfo.EntityType, StringComparison.OrdinalIgnoreCase);
}
if (!matchEntityName)
{
throw new InvalidOperationException("Don't know how to handle element " + reader.LocalName);
}
}
StackFrame frame = new StackFrame();
frame.entity = this.entityInfo;
frame.elementName = reader.LocalName;
frame.property = null;
frame.instance = Activator.CreateInstance <T>();
frame.instanceType = rootType;
frame.state = this.state;
stack.Push(frame);
this.state = ParserState.Entity;
}
