// register the STTL writer
Lang sttl = STTLWriter.registerWriter();
// build a map of namespace priorities
SortedMap<String, Integer> nsPrio = ComparePredicates.getDefaultNSPriorities();
nsPrio.put(SKOS.getURI(), 1);
nsPrio.put("http://purl.bdrc.io/ontology/admin/", 5);
nsPrio.put("http://purl.bdrc.io/ontology/toberemoved/", 6);
// build a list of predicates URIs to be used (in order) for blank node comparison
List<String> predicatesPrio = CompareComplex.getDefaultPropUris();
predicatesPrio.add("http://purl.bdrc.io/ontology/admin/logWhen");
predicatesPrio.add("http://purl.bdrc.io/ontology/onOrAbout");
predicatesPrio.add("http://purl.bdrc.io/ontology/noteText");
// pass the values through a Context object
Context ctx = new Context();
ctx.set(Symbol.create(STTLWriter.SYMBOLS_NS + "nsPriorities"), nsPrio);
ctx.set(Symbol.create(STTLWriter.SYMBOLS_NS + "nsDefaultPriority"), 2);
ctx.set(Symbol.create(STTLWriter.SYMBOLS_NS + "complexPredicatesPriorities"), predicatesPrio);
// the base indentation, defaults to 4
ctx.set(Symbol.create(STTLWriter.SYMBOLS_NS + "nsBaseIndent"), 4);
// the minimal predicate width, defaults to 14
ctx.set(Symbol.create(STTLWriter.SYMBOLS_NS + "predicateBaseWidth"), 14);
// longest length for subject to be on the same line with the predicate, defaults to 20
ctx.set(Symbol.create(STTLWriter.SYMBOLS_NS + "longSubject"), 20);
// put multiple objects on separate lines each, defaults to false
ctx.set(Symbol.create(STTLWriter.SYMBOLS_NS + "objectsMultiLine"), false);
// put final dot on new line for named subjects, defaults to false
ctx.set(Symbol.create(STTLWriter.SYMBOLS_NS + "namedDotNewLine"), false);
Graph g = ... ; // fetch the graph you want to write
RDFWriter w = RDFWriter.create().source().context(ctx).lang(sttl).build();
w.output( ... ); // write somewhere