/**
* Determine whether the given property is recognized and treated specially by this reasoner. This
* is a convenience packaging of a special case of getCapabilities.
*
* @param property the property which we want to ask the reasoner about, given as a Node since
* this is part of the SPI rather than API
* @return true if the given property is handled specially by the reasoner.
*/
@Override
public boolean supportsProperty(Property property) {
if (factory == null) return false;
Model caps = factory.getCapabilities();
Resource root = caps.getResource(factory.getURI());
return caps.contains(root, ReasonerVocabulary.supportsP, property);
}
@Test
public void directDataLinkToQuads() throws IOException {
// first make a file of quads to load later
final Model model = createDefaultModel();
final Path quads = createTempFile("quadExample", ".nq");
final Resource quadsURI = model.createResource(quads.toFile().toURI().toString());
final Resource simpleExample = model.createResource("test:simpleExample");
simpleExample.addProperty(type, DatasetAssemblerVocab.tDatasetTxnMem);
simpleExample.addProperty(data, quadsURI);
final DatasetGraph dsg = createTxnMem().asDatasetGraph();
model
.listStatements()
.mapWith(Statement::asTriple)
.mapWith(t -> new Quad(quadsURI.asNode(), t))
.forEachRemaining(dsg::add);
try (OutputStream out = new FileOutputStream(quads.toFile())) {
write(out, dsg, NQUADS);
}
final Dataset dataset = assemble(simpleExample);
final Model assembledDefaultModel = dataset.getDefaultModel();
final Model assembledNamedModel = dataset.getNamedModel(quadsURI.getURI());
assertTrue(assembledDefaultModel.isEmpty());
assertTrue(
assembledNamedModel.contains(
assembledNamedModel.createStatement(simpleExample, data, quadsURI)));
}
@Test
public void directDataLinkForDefaultAndNamedGraphs() throws IOException {
// first make a file of triples to load later
final Model model = createDefaultModel();
final Path triples = createTempFile("simpleExample", ".nt");
final Resource triplesURI = model.createResource(triples.toFile().toURI().toString());
final Resource simpleExample = model.createResource("test:simpleExample");
simpleExample.addProperty(type, DatasetAssemblerVocab.tDatasetTxnMem);
// add a default graph
simpleExample.addProperty(data, triplesURI);
// add a named graph
final Resource namedGraphDef = model.createResource("test:namedGraphDef");
simpleExample.addProperty(pNamedGraph, namedGraphDef);
final Resource namedGraphName = model.createResource("test:namedGraphExample");
namedGraphDef.addProperty(type, MemoryModel);
namedGraphDef.addProperty(pGraphName, namedGraphName);
namedGraphDef.addProperty(data, triplesURI);
try (OutputStream out = new FileOutputStream(triples.toFile())) {
write(out, model, NTRIPLES);
}
final Dataset dataset = assemble(simpleExample);
final Model assembledDefaultModel = dataset.getDefaultModel();
final Model assembledNamedModel = dataset.getNamedModel(namedGraphName.getURI());
// we put the same triples in each model, so we check for the same triples in each model
for (final Model m : new Model[] {assembledDefaultModel, assembledNamedModel}) {
assertTrue(m.contains(simpleExample, pNamedGraph, namedGraphDef));
assertTrue(m.contains(namedGraphDef, pGraphName, namedGraphName));
assertTrue(m.contains(simpleExample, data, triplesURI));
}
final Iterator<Node> graphNodes = dataset.asDatasetGraph().listGraphNodes();
assertTrue(graphNodes.hasNext());
assertEquals(namedGraphName.asNode(), graphNodes.next());
assertFalse(graphNodes.hasNext());
}