Example usage for org.apache.commons.rdf.api Graph size

List of usage examples for org.apache.commons.rdf.api Graph size

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Introduction

In this page you can find the example usage for org.apache.commons.rdf.api Graph size.

Prototype

long size();

Source Link

Document

Number of triples contained by the graph.

Usage

From source file:example.UserGuideTest.java

@Test
public void graph() throws Exception {
    IRI nameIri = factory.createIRI("http://example.com/name");
    BlankNode aliceBlankNode = factory.createBlankNode();
    Literal aliceLiteral = factory.createLiteral("Alice");
    Triple triple = factory.createTriple(aliceBlankNode, nameIri, aliceLiteral);

    Graph graph = factory.createGraph();

    graph.add(triple);/*from   w  ww  .ja  va  2 s. c o m*/

    IRI bob = factory.createIRI("http://example.com/bob");
    Literal bobName = factory.createLiteral("Bob");
    graph.add(bob, nameIri, bobName);

    System.out.println(graph.contains(triple));

    System.out.println(graph.contains(null, nameIri, bobName));

    System.out.println(graph.size());

    for (Triple t : graph.iterate()) {
        System.out.println(t.getObject());
    }

    for (Triple t : graph.iterate(null, null, bobName)) {
        System.out.println(t.getPredicate());
    }

    Stream<RDFTerm> subjects = graph.getTriples().map(t -> t.getObject());
    String s = subjects.map(RDFTerm::ntriplesString).collect(Collectors.joining(" "));
    System.out.println(s);

    Stream<? extends Triple> namedB = graph.getTriples(null, nameIri, null)
            .filter(t -> t.getObject().ntriplesString().contains("B"));
    System.out.println(namedB.map(t -> t.getSubject()).findAny().get());

    graph.remove(triple);
    System.out.println(graph.contains(triple));

    graph.remove(null, nameIri, null);

    graph.clear();
    System.out.println(graph.contains(null, null, null));

}

From source file:org.trellisldp.api.RDFUtilsTest.java

@Test
public void testCollectGraph() {
    final Graph graph = generate(() -> rdf.createTriple(getIRI(), getIRI(), getIRI())).parallel().limit(size)
            .collect(toGraph());//  w  ww  .  j  av  a  2 s  . c  o  m

    assertTrue(size >= graph.size());
}

From source file:org.trellisldp.api.TrellisUtilsTest.java

@Test
public void testCollectGraph() {
    final Graph graph = generate(() -> rdf.createTriple(getIRI(), getIRI(), getIRI())).parallel().limit(size)
            .collect(toGraph());// w  ww.ja  va2s .c o  m

    assertTrue(size >= graph.size(), "Generated graph has too many triples!");
}

From source file:org.trellisldp.io.JenaIOServiceTest.java

@Test
public void testUpdateError() {
    final Graph graph = rdf.createGraph();
    getTriples().forEach(graph::add);/*from   w  w w .j a  va 2 s .co  m*/
    assertEquals(3L, graph.size(), "Incorrect graph size!");
    assertThrows(RuntimeTrellisException.class,
            () -> service.update(graph, "blah blah blah blah blah", SPARQL_UPDATE, null),
            "no exception on bad update!");
}

From source file:org.trellisldp.io.JenaIOServiceTest.java

@Test
public void testUpdate() {
    final Graph graph = rdf.createGraph();
    getTriples().forEach(graph::add);// w  w  w . j  a  v  a  2  s .  c  o  m
    assertEquals(3L, graph.size(), "Incorrect graph size!");
    service.update(graph, "DELETE WHERE { ?s <http://purl.org/dc/terms/title> ?o }", SPARQL_UPDATE,
            "test:info");
    assertEquals(2L, graph.size(), "Incorrect graph size, post update!");
    service.update(graph, "INSERT { " + "<> <http://purl.org/dc/terms/title> \"Other title\" } WHERE {}",
            SPARQL_UPDATE, "trellis:data/resource");
    assertEquals(3L, graph.size(), "Incorrect graph size, after adding triple!");
    service.update(graph,
            "DELETE WHERE { ?s ?p ?o };"
                    + "INSERT { <> <http://purl.org/dc/terms/title> \"Other title\" } WHERE {}",
            SPARQL_UPDATE, "trellis:data/");
    assertEquals(1L, graph.size(), "Incorrect graph size after removing triples!");
    assertEquals("<trellis:data/>",
            graph.stream().findFirst().map(Triple::getSubject).map(RDFTerm::ntriplesString).get(),
            "Incorrect graph subject from updates!");
}

From source file:org.trellisldp.rosid.file.RDFPatchTest.java

@Test
public void testStream1() throws Exception {
    final File file = new File(getClass().getResource("/journal1.txt").toURI());
    final Instant time = parse("2017-02-11T02:51:35Z");
    final Graph graph = rdf.createGraph();
    RDFPatch.asStream(rdf, file, identifier, time).map(Quad::asTriple).forEach(graph::add);
    assertEquals(2L, graph.size());
    assertTrue(/*from w ww . ja  v  a  2 s.c om*/
            graph.contains(identifier, rdf.createIRI("http://www.w3.org/2004/02/skos/core#prefLabel"), null));
}

From source file:org.trellisldp.rosid.file.RDFPatchTest.java

@Test
public void testStream2() throws Exception {
    final File file = new File(getClass().getResource("/journal1.txt").toURI());
    final Instant time = parse("2017-02-09T02:51:35Z");
    final Graph graph = rdf.createGraph();
    RDFPatch.asStream(rdf, file, identifier, time).map(Quad::asTriple).forEach(graph::add);
    assertEquals(3L, graph.size());
    assertTrue(/*from  www  .j  a  v  a 2s. com*/
            graph.contains(identifier, rdf.createIRI("http://www.w3.org/2004/02/skos/core#prefLabel"), null));
    assertTrue(graph.contains(identifier, DC.isPartOf, null));
}

From source file:org.trellisldp.rosid.file.RDFPatchTest.java

@Test
public void testStream3() throws Exception {
    final File file = new File(getClass().getResource("/journal1.txt").toURI());
    final Instant time = parse("2017-01-30T02:51:35Z");
    final Graph graph = rdf.createGraph();
    RDFPatch.asStream(rdf, file, identifier, time).map(Quad::asTriple).forEach(graph::add);
    assertEquals(7L, graph.size());
    assertFalse(//  w  w  w  .ja  va 2  s.c  om
            graph.contains(identifier, rdf.createIRI("http://www.w3.org/2004/02/skos/core#prefLabel"), null));
    assertTrue(graph.contains(identifier, DC.extent, null));
    assertTrue(graph.contains(identifier, DC.spatial, null));
    assertTrue(graph.contains(identifier, DC.title, null));
    assertTrue(graph.contains(identifier, DC.description, null));
    assertTrue(graph.contains(identifier, DC.subject, null));
    assertEquals(2L, graph.stream(identifier, DC.subject, null).count());
}

From source file:org.trellisldp.rosid.file.RDFPatchTest.java

@Test
public void testStream4() throws Exception {
    final File file = new File(getClass().getResource("/journal1.txt").toURI());
    final Instant time = parse("2017-01-15T09:14:00Z");
    final Graph graph = rdf.createGraph();
    RDFPatch.asStream(rdf, file, identifier, time).map(Quad::asTriple).forEach(graph::add);
    assertEquals(5L, graph.size());
    assertFalse(/*w  w  w  .  j  ava2s  .  c  om*/
            graph.contains(identifier, rdf.createIRI("http://www.w3.org/2004/02/skos/core#prefLabel"), null));
    assertFalse(graph.contains(identifier, DC.extent, null));
    assertFalse(graph.contains(identifier, DC.spatial, null));
    assertTrue(graph.contains(identifier, DC.title, null));
    assertTrue(graph.contains(identifier, DC.description, null));
    assertTrue(graph.contains(identifier, DC.subject, null));
    assertEquals(2L, graph.stream(identifier, DC.subject, null).count());
}

From source file:org.trellisldp.test.AuditTests.java

/**
 * Check the absense of audit triples.// w  w  w  . j a v a 2 s .  c o  m
 */
@Test
@DisplayName("Check the absense of audit triples.")
default void testNoAuditTriples() {
    try (final Response res = target(getResourceLocation()).request().get()) {
        final Graph g = readEntityAsGraph(res.getEntity(), getBaseURL(), TURTLE);
        assertEquals(2L, g.size(), "Check that the graph has 2 triples");
    }
}