/**
* Guess the language, based on filename, or URL, extenstion. Returns null if there isn't a guess
* available
*/
public static Lang guess(String resourceIRI) {
if (resourceIRI == null) return null;
String ext = FileUtils.getFilenameExt(resourceIRI).toLowerCase();
if (ext != null && ext.equals("gz")) {
resourceIRI = resourceIRI.substring(0, resourceIRI.length() - ".gz".length());
ext = FileUtils.getFilenameExt(resourceIRI).toLowerCase();
}
if (isOneOf(ext, extRDFXML)) return RDFXML;
if (isOneOf(ext, extNTriples)) return NTRIPLES;
if (isOneOf(ext, extNTurtle)) return TURTLE;
if (isOneOf(ext, extN3)) return N3;
if (isOneOf(ext, extNQuads)) return NQUADS;
if (isOneOf(ext, extTrig)) return TRIG;
return null;
}
