@Override
public void remove(List<Statement> statements) {
Model graph = null;
GraphConnection graphConnection = null;
try {
graphConnection = openGraph();
graph = graphConnection.getGraph();
graph.enterCriticalSection(Lock.WRITE);
for (Statement nuxStmt : statements) {
com.hp.hpl.jena.graph.Node subject = getJenaNode(nuxStmt.getSubject());
com.hp.hpl.jena.graph.Node predicate = getJenaNode(nuxStmt.getPredicate());
com.hp.hpl.jena.graph.Node object = getJenaNode(nuxStmt.getObject());
Triple jenaTriple = Triple.create(subject, predicate, object);
com.hp.hpl.jena.rdf.model.Statement jenaStmt = graph.asStatement(jenaTriple);
graph.remove(jenaStmt);
// remove properties
RSIterator it = graph.listReifiedStatements(jenaStmt);
while (it.hasNext()) {
ReifiedStatement rs = it.nextRS();
rs.removeProperties();
}
// remove quadlets
graph.removeAllReifications(jenaStmt);
// graph.removeReification(reifiedStmt);
}
} finally {
if (graph != null) {
graph.leaveCriticalSection();
}
if (graphConnection != null) {
graphConnection.close();
}
}
}
@Override
public void consume() throws RepositoryException {
while (stream.hasNext()) {
final Statement t = m.asStatement(stream.next());
LOGGER.debug("Operating on triple {}.", t);
operateOnTriple(t);
}
}
@Override
public void add(List<Statement> statements) {
Model graph = null;
GraphConnection graphConnection = null;
try {
graphConnection = openGraph();
graph = graphConnection.getGraph();
graph.enterCriticalSection(Lock.WRITE);
for (Statement nuxStmt : statements) {
com.hp.hpl.jena.graph.Node subject = getJenaNode(nuxStmt.getSubject());
com.hp.hpl.jena.graph.Node predicate = getJenaNode(nuxStmt.getPredicate());
com.hp.hpl.jena.graph.Node object = getJenaNode(nuxStmt.getObject());
Triple jenaTriple = Triple.create(subject, predicate, object);
com.hp.hpl.jena.rdf.model.Statement jenaStmt = graph.asStatement(jenaTriple);
// properties
Map<Resource, Node[]> properties = nuxStmt.getProperties();
if (properties == null || properties.isEmpty()) {
// no properties
graph.add(jenaStmt);
} else {
List<com.hp.hpl.jena.rdf.model.Statement> stmts =
new ArrayList<com.hp.hpl.jena.rdf.model.Statement>();
stmts.add(jenaStmt);
// create reified statement if it does not exist
com.hp.hpl.jena.graph.Node reifiedStmt = graph.getAnyReifiedStatement(jenaStmt).asNode();
for (Map.Entry<Resource, Node[]> property : properties.entrySet()) {
com.hp.hpl.jena.graph.Node prop = getJenaNode(property.getKey());
for (Node node : property.getValue()) {
com.hp.hpl.jena.graph.Node value = getJenaNode(node);
Triple propTriple = Triple.create(reifiedStmt, prop, value);
stmts.add(graph.asStatement(propTriple));
}
}
graph.add(stmts);
}
}
} finally {
if (graph != null) {
graph.leaveCriticalSection();
}
if (graphConnection != null) {
graphConnection.close();
}
}
}
@Test
public void testWriteTo() throws WebApplicationException, IllegalArgumentException, IOException {
final Triple t =
create(createURI("info:test"), createURI("property:test"), createURI("info:test"));
final RdfStream rdfStream = new RdfStream(t).session(mockSession);
byte[] result;
try (ByteArrayOutputStream entityStream = new ByteArrayOutputStream(); ) {
testProvider.writeTo(
rdfStream,
RdfStream.class,
null,
null,
MediaType.valueOf("application/rdf+xml"),
null,
entityStream);
result = entityStream.toByteArray();
}
final Model postSerialization =
createDefaultModel().read(new ByteArrayInputStream(result), null);
assertTrue(
"Didn't find our triple!", postSerialization.contains(postSerialization.asStatement(t)));
}
