URIFormatter uriFormatter = new URIFormatter();
KR2RMLRDFWriter outWriter = new N3KR2RMLRDFWriter(uriFormatter, pw);
String sourceName = r2rmlURI;
RDFGeneratorRequest request = new RDFGeneratorRequest(rmlID.getName(), sourceName);
request.addWriter(outWriter);
request.setInputStream(dataStream);
request.setDataType(InputType.valueOf(dataType));
request.setAddProvenance(false);
request.setMaxNumLines(-1);
gRDFGen.generateRDF(request);