Examples with BNode org.eclipse.rdf4j.model.BNode used on opensource projects

Example 16 with BNode

use of org.eclipse.rdf4j.model.BNode in project rdf4j by eclipse.

the class TriGParserCustomTest method testGraphLocalNameIntegerNotGraph.

@Test
public void testGraphLocalNameIntegerNotGraph() throws Exception {
    Model model = Rio.parse(new StringReader("@prefix ex: <urn:> .\n ex:1 { [] <http://www.example.net/test> \"Foo\" }"), "", RDFFormat.TRIG);
    assertEquals(1, model.size());
    assertNotNull(model.contexts().iterator().next());
    assertEquals("urn:1", model.contexts().iterator().next().stringValue());
    assertTrue(model.subjects().iterator().next() instanceof BNode);
    assertEquals("http://www.example.net/test", model.predicates().iterator().next().stringValue());
    assertEquals("Foo", model.objects().iterator().next().stringValue());
}

Example 17 with BNode

use of org.eclipse.rdf4j.model.BNode in project rdf4j by eclipse.

the class TriGParserCustomTest method testGraphLocalNameIntegerGraph.

@Test
public void testGraphLocalNameIntegerGraph() throws Exception {
    Model model = Rio.parse(new StringReader("@prefix graph: <urn:> .\n graph:1 { [] <http://www.example.net/test> \"Foo\" }"), "", RDFFormat.TRIG);
    assertEquals(1, model.size());
    assertNotNull(model.contexts().iterator().next());
    assertEquals("urn:1", model.contexts().iterator().next().stringValue());
    assertTrue(model.subjects().iterator().next() instanceof BNode);
    assertEquals("http://www.example.net/test", model.predicates().iterator().next().stringValue());
    assertEquals("Foo", model.objects().iterator().next().stringValue());
}

Example 18 with BNode

use of org.eclipse.rdf4j.model.BNode in project rdf4j by eclipse.

the class ProtocolTest method testEncodeValueRoundtrip.

@Test
public void testEncodeValueRoundtrip() {
    final ValueFactory vf = SimpleValueFactory.getInstance();
    IRI uri = vf.createIRI("http://example.org/foo-bar");
    String encodedUri = Protocol.encodeValue(uri);
    IRI decodedUri = (IRI) Protocol.decodeValue(encodedUri, vf);
    assertEquals(uri, decodedUri);
    BNode bnode = vf.createBNode("foo-bar-1");
    String encodedBnode = Protocol.encodeValue(bnode);
    BNode decodedNode = (BNode) Protocol.decodeValue(encodedBnode, vf);
    assertEquals(bnode, decodedNode);
}

Example 19 with BNode

use of org.eclipse.rdf4j.model.BNode in project rdf4j by eclipse.

the class AbstractValueFactory method createBNode.

@Override
public synchronized BNode createBNode() {
    int id = nextBNodeID++;
    BNode result = createBNode(bnodePrefix + id);
    if (id == Integer.MAX_VALUE) {
        // Start with a new bnode prefix
        initBNodeParams();
    }
    return result;
}

Example 20 with BNode

use of org.eclipse.rdf4j.model.BNode in project rdf4j by eclipse.

the class SPARQLConnection method createBGP.

private void createBGP(StringBuilder qb, Resource subject, IRI predicate, Value object) {
    if (subject != null) {
        if (subject instanceof BNode) {
            qb.append("_:" + subject.stringValue() + " ");
        } else {
            qb.append("<" + subject.stringValue() + "> ");
        }
    } else {
        qb.append("?subj");
    }
    if (predicate != null) {
        qb.append("<" + predicate.stringValue() + "> ");
    } else {
        qb.append("?pred");
    }
    if (object != null) {
        if (object instanceof Literal) {
            Literal lit = (Literal) object;
            qb.append("\"");
            qb.append(SPARQLUtil.encodeString(lit.getLabel()));
            qb.append("\"");
            if (lit.getLanguage().isPresent()) {
                qb.append("@");
                qb.append(lit.getLanguage().get());
            } else {
                qb.append("^^<" + lit.getDatatype().stringValue() + ">");
            }
            qb.append(" ");
        } else if (object instanceof BNode) {
            qb.append("_:" + object.stringValue() + " ");
        } else {
            qb.append("<" + object.stringValue() + "> ");
        }
    } else {
        qb.append("?obj");
    }
    qb.append(". \n");
}