public static void main(String[] args) {
// create an empty model
Model model = ModelFactory.createDefaultModel();
// use the FileManager to find the input file
String inputFileName = "src/main/resources/lab-3.ttl";
InputStream in = FileManager.get().open(inputFileName);
if (in == null) {
throw new IllegalArgumentException("File: " + inputFileName + " not found");
}
// read the Turtle file
model.read(in, null, "TTL");
// get the inferred mode
/* The getDeductionsFunction somehow returns the incorrect answer, so I have to use the deprecated class 'Filter'. */
InfModel infModel = ModelFactory.createRDFSModel(model);
ExtendedIterator<Statement> stmts =
infModel
.listStatements()
.filterDrop(
new Filter<Statement>() {
@Override
public boolean accept(Statement o) {
return model.contains(o);
}
});
Model deductionsModel = ModelFactory.createDefaultModel().add(new StmtIteratorImpl(stmts));
// list new RDFS-inferred triples about 'Museion'
outputInfo(deductionsModel, "museion");
// list new RDFS-inferred triples about 'Chicken Hut'
outputInfo(deductionsModel, "chickenHut");
}
