Examples with Graph org.apache.commons.rdf.api.Graph used on opensource projects

Example 1 with Graph

use of org.apache.commons.rdf.api.Graph in project trellis by trellis-ldp.

the class DBResourceService method storeResource.

private void storeResource(final Metadata metadata, final Dataset dataset, final Instant time, final OperationType opType) {
    try {
        jdbi.useTransaction(handle -> {
            final int resourceId = updateResource(handle, metadata, dataset, time, opType == OperationType.DELETE);
            updateDescription(handle, resourceId, dataset, batchSize);
            updateAcl(handle, resourceId, dataset, batchSize);
            updateExtra(handle, resourceId, metadata.getIdentifier(), dataset);
            extensions.forEach((ext, graph) -> dataset.getGraph(graph).filter(g -> !"acl".equals(ext)).ifPresent(g -> updateExtension(handle, resourceId, ext, g)));
            if (opType == OperationType.DELETE) {
                // Verify that the container really is empty
                final String query = "SELECT EXISTS(SELECT 1 FROM resource WHERE is_part_of = ?)";
                if (Boolean.TRUE.equals(handle.select(query, metadata.getIdentifier().getIRIString()).map((rs, ctx) -> rs.getBoolean(1)).one())) {
                    throw new StorageConflictException("Cannot delete non-empty containers");
                }
            }
        });
    } catch (final TrellisRuntimeException ex) {
        throw ex;
    } catch (final Exception ex) {
        throw new TrellisRuntimeException("Could not update data for " + metadata.getIdentifier(), ex);
    }
}

Example 2 with Graph

use of org.apache.commons.rdf.api.Graph in project trellis by trellis-ldp.

the class JenaIOServiceTest method testUpdate.

@Test
void testUpdate() {
    final Graph graph = rdf.createGraph();
    getTriples().forEach(graph::add);
    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!");
}

Example 3 with Graph

use of org.apache.commons.rdf.api.Graph in project trellis by trellis-ldp.

the class JenaIOServiceTest method testJsonLdFlattenedSerializer4.

@Test
void testJsonLdFlattenedSerializer4() throws UnsupportedEncodingException {
    when(mockNamespaceService.getNamespaces()).thenReturn(namespaces);
    final ByteArrayOutputStream out = new ByteArrayOutputStream();
    service.write(getTriples(), out, JSONLD, identifier, compacted, flattened);
    final String output = out.toString("UTF-8");
    final Graph graph = rdf.createGraph();
    service.read(new ByteArrayInputStream(output.getBytes(UTF_8)), JSONLD, null).forEach(graph::add);
    assertAll("Check flattened serialization", checkCompactSerialization(output, graph));
}

Example 4 with Graph

use of org.apache.commons.rdf.api.Graph in project trellis by trellis-ldp.

the class JenaIOServiceTest method testJsonLdFlattenedSerializer.

@Test
void testJsonLdFlattenedSerializer() throws UnsupportedEncodingException {
    when(mockNamespaceService.getNamespaces()).thenReturn(namespaces);
    final ByteArrayOutputStream out = new ByteArrayOutputStream();
    service.write(getTriples(), out, JSONLD, identifier, flattened);
    final String output = out.toString("UTF-8");
    final Graph graph = rdf.createGraph();
    service.read(new ByteArrayInputStream(output.getBytes(UTF_8)), JSONLD, null).forEach(graph::add);
    assertAll("Check flattened serialization", checkFlattenedSerialization(output, graph));
}

Example 5 with Graph

use of org.apache.commons.rdf.api.Graph in project trellis by trellis-ldp.

the class JenaIOServiceTest method testJsonLdDefaultSerializer.

@Test
void testJsonLdDefaultSerializer() throws UnsupportedEncodingException {
    when(mockNamespaceService.getNamespaces()).thenReturn(namespaces);
    final ByteArrayOutputStream out = new ByteArrayOutputStream();
    service3.write(getTriples(), out, JSONLD, identifier);
    final String output = out.toString("UTF-8");
    final Graph graph = rdf.createGraph();
    service3.read(new ByteArrayInputStream(output.getBytes(UTF_8)), JSONLD, null).forEach(graph::add);
    assertAll("Check compact serialization", checkCompactSerialization(output, graph));
}