public Pattern render(Parameters parameters)
throws SAXException, JiBXException, IOException, RenderingException {
RenderingContext renderingContext = renderingCF.createRenderingContext();
RenderingListenerAdapter listener = new RenderingListenerAdapter(renderingContext);
ValidationProgram processor;
if (knittingCF == null || knittingVF == null) {
processor = new ValidationProgram(listener, true);
} else {
List<PatternEventListener> listeners = new ArrayList<PatternEventListener>();
listeners.add(listener);
processor = new ValidationProgram(knittingCF, knittingVF, listeners);
}
Writer writer = parameters.getWriter();
if (writer != null) {
renderingContext.getRenderer().setWriter(writer);
// the writer is on the listener adapter, not on the processing
// program
parameters.setWriter(null);
}
return processor.validate(parameters);
}
