String drl = BRDRLPersistence.getInstance().marshal(model);
final DrlParser parser = new DrlParser();
DefaultExpander expander = getDslExpander();
try {
String str = expander.expand( new StringReader(drl) );
if ( expander.hasErrors() ) {
this.results.addAll( expander.getErrors() );
}
final PackageDescr pkg = parser.parse( str );