Examples with NQUADS org.apache.jena.riot.Lang.NQUADS used on opensource projects

Example 1 with NQUADS

use of org.apache.jena.riot.Lang.NQUADS in project jena by apache.

the class TestInMemDatasetAssembler method directDataLinkToQuads.

@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)));
}