/// <summary>
/// Takes the Event Tree and Flattens it into a Queue as per the rules laid out in the RDF/XML Specification
/// </summary>
/// <param name="context">Parser Context</param>
/// <param name="evt">Event which is the Root of the Tree (not necessarily a RootEvent)</param>
/// <param name="nesting">A numeric value used for Parser Tracing to indicate nesting levels of the Event Tree</param>
private void FlattenEventTree(RdfXmlParserContext context, IRdfXmlEvent evt, int nesting)
{
// Add to Queue
context.Events.Enqueue(evt);
if (context.TraceParsing)
{
Console.Write(nesting + " " + evt.GetType().ToString());
}
// Iterate over Children where present
if (evt is RootEvent)
{
RootEvent root = (RootEvent)evt;
if (context.TraceParsing)
{
Console.WriteLine("");
}
foreach (IRdfXmlEvent childEvent in root.Children)
{
FlattenEventTree(context, childEvent, nesting + 1);
}
// No End after a RootEvent
return;
}
else if (evt is ElementEvent)
{
ElementEvent element = (ElementEvent)evt;
if (context.TraceParsing)
{
Console.WriteLine(" " + element.Namespace + ":" + element.LocalName);
}
if (element.Children.Count > 0)
{
foreach (IRdfXmlEvent childEvent in element.Children)
{
FlattenEventTree(context, childEvent, nesting + 1);
}
}
}
else if (evt is TextEvent)
{
TextEvent text = (TextEvent)evt;
if (context.TraceParsing)
{
Console.WriteLine(" " + text.Value);
}
// No additional End after a Text Event
return;
}
else if (evt is TypedLiteralEvent)
{
TypedLiteralEvent tlit = (TypedLiteralEvent)evt;
if (context.TraceParsing)
{
Console.WriteLine();
}
// No additional End after a Text Event
return;
}
// Add an End Element Event to the Queue
EndElementEvent end = new EndElementEvent();
context.Events.Enqueue(end);
if (context.TraceParsing)
{
String endDescrip = String.Empty;
if (evt is ElementEvent)
{
ElementEvent temp = (ElementEvent)evt;
endDescrip = " " + temp.QName;
}
Console.WriteLine(nesting + " " + end.GetType().ToString() + endDescrip);
}
}
/// <summary>
/// Takes the Event Tree and Flattens it into a Queue as per the rules laid out in the RDF/XML Specification
/// </summary>
/// <param name="context">Parser Context</param>
/// <param name="evt">Event which is the Root of the Tree (not necessarily a RootEvent)</param>
/// <param name="nesting">A numeric value used for Parser Tracing to indicate nesting levels of the Event Tree</param>
private void FlattenEventTree(RdfXmlParserContext context, IRdfXmlEvent evt, int nesting)
{
//Add to Queue
context.Events.Enqueue(evt);
if (context.TraceParsing)
{
Console.Write(nesting + " " + evt.GetType().ToString());
}
//Iterate over Children where present
if (evt is RootEvent)
{
RootEvent root = (RootEvent)evt;
if (context.TraceParsing)
{
Console.WriteLine("");
}
foreach (IRdfXmlEvent childEvent in root.Children)
{
this.FlattenEventTree(context, childEvent, nesting + 1);
}
//No End after a RootEvent
return;
}
else if (evt is ElementEvent)
{
ElementEvent element = (ElementEvent)evt;
if (context.TraceParsing)
{
Console.WriteLine(" " + element.Namespace + ":" + element.LocalName);
}
if (element.Children.Count > 0)
{
foreach (IRdfXmlEvent childEvent in element.Children)
{
this.FlattenEventTree(context, childEvent, nesting + 1);
}
}
}
else if (evt is TextEvent)
{
TextEvent text = (TextEvent)evt;
if (context.TraceParsing)
{
Console.WriteLine(" " + text.Value);
}
//No additional End after a Text Event
return;
}
else if (evt is TypedLiteralEvent)
{
TypedLiteralEvent tlit = (TypedLiteralEvent)evt;
if (context.TraceParsing)
{
Console.WriteLine();
}
//No additional End after a Text Event
return;
}
//Add an End Element Event to the Queue
EndElementEvent end = new EndElementEvent();
context.Events.Enqueue(end);
if (context.TraceParsing)
{
String endDescrip = String.Empty;
if (evt is ElementEvent)
{
ElementEvent temp = (ElementEvent)evt;
endDescrip = " " + temp.QName;
}
Console.WriteLine(nesting + " " + end.GetType().ToString() + endDescrip);
}
}
