org.apache.commons.rdf.api.Dataset类的使用及代码示例

x33g5p2x  于2022-01-18 转载在 其他  
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本文整理了Java中org.apache.commons.rdf.api.Dataset类的一些代码示例，展示了Dataset类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Dataset类的具体详情如下：
包路径：org.apache.commons.rdf.api.Dataset
类名称：Dataset

Dataset介绍

[英]An RDF 1.1 Dataset, a set of RDF quads, as defined by RDF-1.1 Concepts and Abstract Syntax, a W3C Recommendation published on 25 February 2014.
[中]一个RDF 1.1 Dataset，一组RDF四元组，由RDF-1.1 Concepts and Abstract Syntax定义，W3C建议于2014年2月25日发布。

代码示例

代码示例来源：origin: org.trellisldp/trellis-api

@Override
public Stream<Quad> stream() {
  return dataset.stream().map(Quad.class::cast);
}

代码示例来源：origin: trellis-ldp/trellis

/**
 * Add a quad to the dataset.
 *
 * @param quad an RDF Quad
 */
public void add(final Quad quad) {
  dataset.add(quad);
}

代码示例来源：origin: org.trellisldp/trellis-rosid-common

dataset.remove(of(PreferServerManaged), null, type, null);
  dataset.add(PreferServerManaged, identifier, type, ixnModel);
if (LDP.Resource.equals(ixnModel) && dataset.contains(of(PreferAudit), null, type, Delete)) {
  dataset.add(PreferUserManaged, identifier, type, DeletedResource);
} else {
  dataset.remove(of(PreferUserManaged), identifier, type, DeletedResource);

代码示例来源：origin: org.trellisldp/trellis-rosid-common

private ProducerRecord<String, String> buildContainmentMessage(final String topic, final IRI resource,
    final Resource parent, final Dataset dataset) throws Exception {
  try (final Dataset data = dataset.stream(of(PreferAudit), null, null, null).map(auditTypeMapper)
      .collect(toDataset())) {
    data.add(PreferContainment, parent.getIdentifier(), contains, resource);
    return new ProducerRecord<>(topic, parent.getIdentifier().getIRIString(), serialize(data));
  }
}

代码示例来源：origin: org.apache.commons/commons-rdf-api

@Test
public void clear() throws Exception {
  dataset.clear();
  assertFalse(dataset.contains(null, alice, knows, bob));
  assertEquals(0, dataset.size());
  dataset.clear(); // no-op
  assertEquals(0, dataset.size());
  assertFalse(dataset.contains(null, null, null, null)); // nothing here
}

代码示例来源：origin: trellis-ldp/trellis

dataset.add(Trellis.PreferUserManaged, resource, DC.title, rdf.createLiteral("Indirect Container"));
dataset.add(Trellis.PreferUserManaged, resource, DC.description, rdf.createLiteral("Test LDP-IC"));
dataset.add(Trellis.PreferUserManaged, resource, DC.subject, rdf.createIRI("http://example.com/subject"));
dataset.add(Trellis.PreferUserManaged, resource, RDF.type, SKOS.Concept);
dataset.add(Trellis.PreferUserManaged, resource, LDP.membershipResource, members);
dataset.add(Trellis.PreferUserManaged, resource, LDP.hasMemberRelation, RDFS.label);
dataset.add(Trellis.PreferUserManaged, resource, LDP.insertedContentRelation, SKOS.prefLabel);
dataset.add(Trellis.PreferAudit, resource, PROV.wasGeneratedBy, bnode0);
dataset.add(Trellis.PreferAudit, bnode0, PROV.atTime, rdf.createLiteral(now().toString(), XSD.dateTime));
dataset.add(Trellis.PreferAudit, bnode0, RDF.type, PROV.Activity);
dataset.add(Trellis.PreferAudit, bnode0, RDF.type, AS.Create);
dataset.clear();
dataset.add(Trellis.PreferUserManaged, members, DC.title, rdf.createLiteral("Membership resource"));
dataset.add(Trellis.PreferAudit, members, PROV.wasGeneratedBy, bnode1);
dataset.add(Trellis.PreferAudit, bnode1, PROV.atTime, rdf.createLiteral(now().toString(), XSD.dateTime));
dataset.add(Trellis.PreferAudit, bnode1, RDF.type, PROV.Activity);
dataset.add(Trellis.PreferAudit, bnode1, RDF.type, AS.Create);
dataset.clear();
dataset.add(Trellis.PreferUserManaged, child, SKOS.prefLabel, label);
dataset.add(Trellis.PreferAudit, child, PROV.wasGeneratedBy, bnode2);
dataset.add(Trellis.PreferAudit, bnode2, RDF.type, AS.Create);
dataset.add(Trellis.PreferAudit, bnode2, RDF.type, PROV.Activity);

代码示例来源：origin: org.apache.commons/commons-rdf-api

@Test
public void remove() throws Exception {
  final long fullSize = dataset.size();
  dataset.remove(Optional.of(graph1), alice, knows, bob);
  final long shrunkSize = dataset.size();
  assertEquals(1, fullSize - shrunkSize);
  dataset.remove(Optional.of(graph1), alice, knows, bob);
  assertEquals(shrunkSize, dataset.size()); // unchanged
  dataset.add(graph1, alice, knows, bob);
  dataset.add(graph2, alice, knows, bob);
  dataset.add(graph2, alice, knows, bob);
  assertTrue(dataset.size() > shrunkSize);
  dataset.remove(null, alice, knows, bob);
  assertEquals(shrunkSize, dataset.size());
  try (Stream<? extends Quad> stream = dataset.stream()) {
    final Optional<? extends Quad> anyQuad = stream.findAny();
    Assume.assumeTrue(anyQuad.isPresent());
  dataset.remove(otherQuad);
  assertEquals(shrunkSize - 1, dataset.size());
  dataset.remove(otherQuad);
  assertEquals(shrunkSize - 1, dataset.size()); // no change
  dataset.add(otherQuad);

代码示例来源：origin: trellis-ldp/trellis

@Test
public void testAuditUpdate() {
  final Dataset dataset = rdf.createDataset();
  final AuditService svc = new DefaultAuditService() {};
  svc.update(subject, mockSession).forEach(dataset::add);
  assertTrue(dataset.getGraph(Trellis.PreferAudit).filter(graph -> graph.size() == dataset.size()).isPresent());
  assertTrue(dataset.contains(null, null, type, AS.Update));
  assertAll("Event property check", checkEventProperties(dataset));
}

代码示例来源：origin: trellis-ldp/trellis

/**
 * Get a graph from the dataset.
 *
 * @param graphName the graph name
 * @return the graph
 */
public Optional<Graph> getGraph(final IRI graphName) {
  return dataset.getGraph(graphName);
}

代码示例来源：origin: org.trellisldp/trellis-test

/**
 * Test replacing a resource.
 * @throws Exception if the operation failed
 */
@Test
@DisplayName("Test replacing resource")
default void testReplaceResource() throws Exception {
  final RDF rdf = getInstance();
  final IRI identifier = rdf.createIRI(TRELLIS_DATA_PREFIX + getResourceService().generateIdentifier());
  final Dataset dataset = buildDataset(identifier, "Replacement Test", SUBJECT2);
  assertEquals(MISSING_RESOURCE, getResourceService().get(identifier).toCompletableFuture().join(),
      "Check for no pre-existing LDP-RS");
  assertDoesNotThrow(() -> getResourceService().create(Metadata.builder(identifier)
        .interactionModel(LDP.RDFSource).container(ROOT_CONTAINER).build(), dataset)
      .toCompletableFuture().join(), "Check that the LDP-RS was successfully created");
  dataset.clear();
  dataset.add(Trellis.PreferUserManaged, identifier, SKOS.prefLabel, rdf.createLiteral("preferred label"));
  dataset.add(Trellis.PreferUserManaged, identifier, SKOS.altLabel, rdf.createLiteral("alternate label"));
  dataset.add(Trellis.PreferUserManaged, identifier, type, SKOS.Concept);
  assertDoesNotThrow(() -> getResourceService().replace(Metadata.builder(identifier)
        .interactionModel(LDP.RDFSource).container(ROOT_CONTAINER).build(), dataset)
      .toCompletableFuture().join(), "Check that the LDP-RS was successfully replaced");
  final Resource res = getResourceService().get(identifier).toCompletableFuture().join();
  assertAll("Check the replaced LDP-RS stream", res.stream(Trellis.PreferUserManaged)
      .map(toQuad(Trellis.PreferUserManaged))
      .map(q -> () -> assertTrue(dataset.contains(q), "Check that the quad comes from the dataset: " + q)));
  assertEquals(3L, res.stream(Trellis.PreferUserManaged).count(), "Check the total user-managed triple count");
}

代码示例来源：origin: org.apache.commons/commons-rdf-api

@Test
public void getQuads() throws Exception {
  long quadCount;
  try (Stream<? extends Quad> stream = dataset.stream()) {
    quadCount = stream.count();
  }
  assertTrue(quadCount > 0);
  try (Stream<? extends Quad> stream = dataset.stream()) {
    assertTrue(stream.allMatch(t -> dataset.contains(t)));
  }
  // Check exact count
  Assume.assumeNotNull(bnode1, bnode2, aliceName, bobName, secretClubName, companyName, bobNameQuad);
  assertEquals(10, quadCount);
}

代码示例来源：origin: trellis-ldp/trellis

@Override
public CompletionStage<Void> add(final IRI id, final Dataset dataset) {
  return runAsync(() -> {
    final IRI graphName = rdf.createIRI(id.getIRIString() + "?ext=audit");
    try (final Dataset data = rdf.createDataset()) {
      dataset.getGraph(PreferAudit).ifPresent(g ->
          g.stream().forEach(t -> data.add(graphName, t.getSubject(), t.getPredicate(), t.getObject())));
      executeWrite(rdfConnection, () -> rdfConnection.loadDataset(asJenaDataset(data)));
    } catch (final Exception ex) {
      throw new RuntimeTrellisException("Error storing audit dataset for " + id, ex);
    }
  });
}

代码示例来源：origin: org.apache.commons/commons-rdf-api

factory = createFactory();
dataset = factory.createDataset();
assertEquals(0, dataset.size());
bobName = factory.createLiteral("Bob", "en-US");
dataset.add(graph1, alice, name, aliceName);
dataset.add(graph1, alice, knows, bob);
dataset.add(graph1, alice, member, bnode1);
dataset.add(bobNameQuad);
dataset.add(factory.createQuad(graph2, bob, member, bnode1));
dataset.add(factory.createQuad(graph2, bob, member, bnode2));
dataset.add(graph1, bnode1, name, secretClubName);
dataset.add(graph2, bnode2, name, companyName);
dataset.add(null, alice, isPrimaryTopicOf, graph1);
dataset.add(null, bob, isPrimaryTopicOf, graph2);

代码示例来源：origin: org.apache.commons/commons-rdf-simple

@Override
public boolean contains(final BlankNodeOrIRI subject, final IRI predicate, final RDFTerm object) {
  return dataset.contains(unionOrNamedGraph(), subject, predicate, object);
}

代码示例来源：origin: trellis-ldp/trellis

@Test
public void testAppendSemantics() {
  final Quad testFirstQuad = createQuad(testResourceId3, testResourceId2, testResourceId1, badId);
  final Quad testSecondQuad = createQuad(testResourceId3, testResourceId2, testResourceId1, badId);
  // store some data in mutable and immutable sides under the same resource ID
  final Resource testFirstResource = new TestResource(testResourceId3, testFirstQuad);
  assertNull(testable.add(testResourceId3, testFirstResource.dataset()).toCompletableFuture().join(),
          "Couldn't create an immutable resource!");
  final Resource testSecondResource = new TestResource(testResourceId3, testSecondQuad);
  assertNull(testable.add(testResourceId3, testSecondResource.dataset()).toCompletableFuture().join(),
          "Couldn't add to an immutable resource!");
  final Resource retrieved = testable.get(testResourceId3).toCompletableFuture().join();
  assertEquals(testResourceId3, retrieved.getIdentifier(), "Resource was retrieved with wrong ID!");
  final Dataset quads = retrieved.dataset();
  assertTrue(quads.contains(testFirstQuad), "Resource was retrieved without its immutable data!");
  assertTrue(quads.contains(testSecondQuad), "Resource was retrieved without its mutable data!");
  quads.remove(testFirstQuad);
  quads.remove(testSecondQuad);
  assertEquals(0, quads.size(), "Resource was retrieved with too much data!");
}

代码示例来源：origin: org.apache.commons/commons-rdf-api

@Test
public void getGraph2() throws Exception {
  // graph2 should be present, even if is named by a BlankNode
  // We'll look up the potentially mapped graph2 blanknode
  final BlankNodeOrIRI graph2Name = (BlankNodeOrIRI) dataset.stream(Optional.empty(), bob, isPrimaryTopicOf, null)
      .map(Quad::getObject).findAny().get();
  try (final Graph g2 = dataset.getGraph(graph2Name).get()) {
    assertEquals(4, g2.size());
    final Triple bobNameTriple = bobNameQuad.asTriple();
    assertTrue(g2.contains(bobNameTriple));
    assertTrue(g2.contains(bob, member, bnode1));
    assertTrue(g2.contains(bob, member, bnode2));
    assertFalse(g2.contains(bnode1, name, secretClubName));
    assertTrue(g2.contains(bnode2, name, companyName));
  }
}

代码示例来源：origin: org.apache.commons/commons-rdf-api

@Test
public void containsLanguageTagsCaseInsensitive() {
  // COMMONSRDF-51: Ensure we can add/contains/remove with any casing
  // of literal language tag
  final Literal lower = factory.createLiteral("Hello there", "en-gb");
  final Literal upper = factory.createLiteral("Hello there", "EN-GB");
  final Literal mixed = factory.createLiteral("Hello there", "en-GB");
  final IRI example1 = factory.createIRI("http://example.com/s1");
  final IRI greeting = factory.createIRI("http://example.com/greeting");
  dataset.add(null, example1, greeting, upper);
  // any kind of Triple should match
  assertTrue(dataset.contains(factory.createQuad(null, example1, greeting, upper)));
  assertTrue(dataset.contains(factory.createQuad(null, example1, greeting, lower)));
  assertTrue(dataset.contains(factory.createQuad(null, example1, greeting, mixed)));
  // or as patterns
  assertTrue(dataset.contains(null, null, null, upper));
  assertTrue(dataset.contains(null, null, null, lower));
  assertTrue(dataset.contains(null, null, null, mixed));
}

代码示例来源：origin: trellis-ldp/trellis

private Stream<Executable> checkEventProperties(final Dataset dataset) {
    return Stream.of(
        () -> assertTrue(dataset.contains(null, null, type, PROV.Activity), "missing prov:Activity triple!"),
        () -> assertTrue(dataset.contains(null, subject, PROV.wasGeneratedBy, null),
                 "missing prov:wasGeneratedBy triple!"),
        () -> assertTrue(dataset.contains(null, null, PROV.wasAssociatedWith, Trellis.AnonymousAgent),
                 "missing prov:wasAssociatedWith triple!"),
        () -> assertTrue(dataset.contains(null, null, PROV.actedOnBehalfOf, Trellis.AdministratorAgent),
                 "missing prov:actedOnBehalfOf triple!"),
        () -> assertTrue(dataset.contains(null, null, PROV.atTime,
            rdf.createLiteral(created.toString(), XSD.dateTime)), "missing prov:atTime triple!"),
        () -> assertEquals(6L, dataset.size(), "Incorrect dataset size!"));
  }
}

代码示例来源：origin: org.apache.commons/commons-rdf-api

/**
 * Ensure {@link Dataset#getGraphNames()} contains our two graphs.
 *
 * @throws Exception
 *             If test fails
 */
@Test
public void getGraphNames() throws Exception {
  final Set<BlankNodeOrIRI> names = dataset.getGraphNames().collect(Collectors.toSet());
  assertTrue("Can't find graph name " + graph1, names.contains(graph1));
  assertTrue("Found no quads in graph1", dataset.contains(Optional.of(graph1), null, null, null));
  final Optional<BlankNodeOrIRI> graphName2 = dataset.getGraphNames().filter(BlankNode.class::isInstance).findAny();
  assertTrue("Could not find graph2-like BlankNode", graphName2.isPresent());
  assertTrue("Found no quads in graph2", dataset.contains(graphName2, null, null, null));
  // Some implementations like Virtuoso might have additional internal graphs,
  // so we can't assume this:
  //assertEquals(2, names.size());
}

代码示例来源：origin: org.apache.commons/commons-rdf-api

@Test
public void size() throws Exception {
  assertEquals(10, dataset.size());
}

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