Examples with Statement org.apache.jena.rdf.model.Statement used on opensource projects

Example 16 with Statement

use of org.apache.jena.rdf.model.Statement in project jena by apache.

the class TestConcurrentAccess method mrswGraph5.

@Test
public void mrswGraph5() {
    Dataset d = TDBFactory.createDataset();
    Model m = d.getNamedModel("http://example");
    GraphUtil.addInto(m.getGraph(), buildGraph());
    Resource r = m.createResource("x");
    ExtendedIterator<Statement> iter1 = m.listStatements(r, null, (RDFNode) null);
    while (iter1.hasNext()) iter1.next();
    Triple t = SSE.parseTriple("(<y> <p> 99)");
    m.getGraph().delete(t);
    iter1.hasNext();
}

Example 17 with Statement

use of org.apache.jena.rdf.model.Statement in project jena by apache.

the class TestConcurrentAccess method mrswGraph4.

@Test(expected = ConcurrentModificationException.class)
public void mrswGraph4() {
    Model m = create().getDefaultModel();
    Resource r = m.createResource("x");
    ExtendedIterator<Statement> iter1 = m.listLiteralStatements(r, null, 1);
    assertNotNull(iter1.next());
    // and now the iterator has implicitly finished.
    Triple t = SSE.parseTriple("(<y> <p> 99)");
    m.getGraph().add(t);
    // Bad - modification of the dataset occurred.
    iter1.hasNext();
}

Example 18 with Statement

use of org.apache.jena.rdf.model.Statement in project jena by apache.

the class TestConcurrentAccess method mrswGraph2.

@Test(expected = ConcurrentModificationException.class)
public void mrswGraph2() {
    Model m = create().getDefaultModel();
    Resource r = m.createResource("x");
    ExtendedIterator<Statement> iter1 = m.listStatements(r, null, (RDFNode) null);
    assertNotNull(iter1.next());
    Triple t = SSE.parseTriple("(<y> <p> 99)");
    m.getGraph().add(t);
    // Bad
    iter1.hasNext();
}

Example 19 with Statement

use of org.apache.jena.rdf.model.Statement in project jena by apache.

the class ModelHelper method statements.

// /**
// * Create an array of Statements parsed from a semi-separated string.
// *
// * @param lockModel
// * a model to serve as a statement factory
// * @param facts
// * a sequence of semicolon-separated "S P O" facts
// * @return a Statement[] of the (S P O) statements from the string
// */
// public static Statement[] statements(Model m, String facts) {
// ArrayList<Statement> sl = new ArrayList<Statement>();
// StringTokenizer st = new StringTokenizer(facts, ";");
// while (st.hasMoreTokens())
// sl.add(statement(m, st.nextToken()));
// return sl.toArray(new Statement[sl.size()]);
// }
/**
	 * Create an array of Statements parsed from a semi-separated string.
	 * 
	 * @param facts
	 *            a sequence of semicolon-separated "S P O" facts
	 * @return a Statement[] of the (S P O) statements from the string
	 */
public static Statement[] statements(String facts) {
    ArrayList<Statement> sl = new ArrayList<>();
    StringTokenizer st = new StringTokenizer(facts, ";");
    while (st.hasMoreTokens()) sl.add(statement(st.nextToken()));
    return sl.toArray(new Statement[sl.size()]);
}

Example 20 with Statement

use of org.apache.jena.rdf.model.Statement 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)));
}