Java Code Examples for org.openrdf.model.vocabulary.RDF#NAMESPACE
The following examples show how to use
org.openrdf.model.vocabulary.RDF#NAMESPACE .
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Example 1
| Source File: ForwardChainingRDFSInferencerConnection.java From semweb4j with BSD 2-Clause "Simplified" License | 6 votes |
|
private int applyRuleX1()
throws SailException
{
int nofInferred = 0;
String prefix = RDF.NAMESPACE + "_";
Iterator<Statement> iter = this.newThisIteration.match(null, null, null);
while (iter.hasNext()) {
Statement st = iter.next();
URI predNode = st.getPredicate();
String predURI = predNode.toString();
if (predURI.startsWith(prefix) && isValidPredicateNumber(predURI.substring(prefix.length()))) {
boolean added = addInferredStatement(predNode, RDF.TYPE, RDFS.CONTAINERMEMBERSHIPPROPERTY);
if (added) {
nofInferred++;
}
}
}
return nofInferred;
}
Example 2
| Source File: RDFSContainer.java From anno4j with Apache License 2.0 | 5 votes |
|
private URI getMemberPredicate(int index) {
ObjectConnection conn = getObjectConnection();
Repository repository;
repository = conn.getRepository();
String uri = RDF.NAMESPACE + '_' + (index + 1);
return repository.getValueFactory().createURI(uri);
}
Example 3
| Source File: AbstractTestNanoSparqlClient.java From database with GNU General Public License v2.0 | 5 votes |
|
protected void doConstructTest(final String method, final RDFFormat format)
throws Exception {
setupDataOnServer();
final URI mike = new URIImpl(BD.NAMESPACE + "Mike");
final URI bryan = new URIImpl(BD.NAMESPACE + "Bryan");
final URI person = new URIImpl(BD.NAMESPACE + "Person");
// The expected results.
final Graph expected = new LinkedHashModel();
{
// expected.add(new StatementImpl(mike, likes, rdf));
expected.add(new StatementImpl(mike, RDF.TYPE, person));
expected.add(new StatementImpl(bryan, RDF.TYPE, person));
// expected.add(new StatementImpl(mike, RDFS.LABEL, label1));
}
// Run the query and verify the results.
{
final String queryStr =
"prefix bd: <"+BD.NAMESPACE+"> " +//
"prefix rdf: <"+RDF.NAMESPACE+"> " +//
"prefix rdfs: <"+RDFS.NAMESPACE+"> " +//
"CONSTRUCT { ?x rdf:type bd:Person }" +//
"WHERE { " +//
" ?x rdf:type bd:Person . " +//
// " ?x bd:likes bd:RDF " +//
"}";
final IPreparedGraphQuery query = m_repo.prepareGraphQuery(queryStr);
// final Graph actual = asGraph(query.evaluate());
assertSameGraph(expected, query);
}
}
Example 4
| Source File: BigdataStoreTest.java From database with GNU General Public License v2.0 | 5 votes |
|
@Override
protected int countQueryResults(String query)
throws Exception
{
query = "PREFIX ex: <http://example.org/> PREFIX rdf: <"+RDF.NAMESPACE+"> PREFIX rdfs: <"+RDFS.NAMESPACE+"> " + query;
return countElements(evaluate(query, con));
}
Example 5
| Source File: Test_REST_DESCRIBE.java From database with GNU General Public License v2.0 | 4 votes |
|
protected void doStressDescribeTest(final String method,
final RDFFormat format, final int tasks, final int threads,
final int statements) throws Exception {
final URI person = new URIImpl(BD.NAMESPACE + "Person");
final URI likes = new URIImpl(BD.NAMESPACE + "likes");
final URI rdf = new URIImpl(BD.NAMESPACE + "RDF");
final URI rdfs = new URIImpl(BD.NAMESPACE + "RDFS");
{
// create a large number of mikes and bryans
final Graph g = new GraphImpl();
for (int n = 0; n < statements; n++) {
final URI miken = new URIImpl(BD.NAMESPACE + "Mike#" + n);
final URI bryann = new URIImpl(BD.NAMESPACE + "Bryan#" + n);
final Literal nameMiken = new LiteralImpl("Mike#" + n);
final Literal nameBryann = new LiteralImpl("Bryan#" + n);
g.add(miken, RDF.TYPE, person);
g.add(miken, likes, rdf);
g.add(miken, RDFS.LABEL, nameMiken);
g.add(bryann, RDF.TYPE, person);
g.add(bryann, likes, rdfs);
g.add(bryann, RDFS.LABEL, nameBryann);
}
m_repo.add(new AddOp(g));
}
// Run the DESCRIBE query and verify the results (non-empty).
{
final String queryStr = "prefix bd: <" + BD.NAMESPACE + "> " + //
"prefix rdf: <" + RDF.NAMESPACE + "> " + //
"prefix rdfs: <" + RDFS.NAMESPACE + "> " + //
"DESCRIBE ?x " + //
"WHERE { " + //
" ?x rdf:type bd:Person . " + //
" ?x bd:likes bd:RDF " + //
"}";
final AtomicInteger errorCount = new AtomicInteger();
final Callable<Void> task = new Callable<Void>() {
@Override
public Void call() throws Exception {
try {
final Graph actual = asGraph(m_repo
.prepareGraphQuery(queryStr));
assertTrue(!actual.isEmpty());
return null;
} catch (Exception e) {
log.warn("Call failure", e);
errorCount.incrementAndGet();
throw e;
}
}
};
final int threadCount = Thread.activeCount();
final ExecutorService exec = Executors.newFixedThreadPool(threads);
for (int r = 0; r < tasks; r++) {
exec.submit(task);
}
exec.shutdown();
exec.awaitTermination(2000, TimeUnit.SECONDS);
// force shutdown
exec.shutdownNow();
int loops = 20;
while (Thread.activeCount() > threadCount && --loops > 0) {
Thread.sleep(500);
if (log.isTraceEnabled())
log.trace("Extra threads: "
+ (Thread.activeCount() - threadCount));
}
if (log.isInfoEnabled())
log.info("Return with extra threads: "
+ (Thread.activeCount() - threadCount));
assertTrue(errorCount.get() == 0);
}
}
Example 6
| Source File: AbstractTestNanoSparqlClient.java From database with GNU General Public License v2.0 | 4 votes |
|
/**
* Inserts some data into the KB and then issues a DESCRIBE query against
* the REST API and verifies the expected results.
*
* @param format
* The format is used to specify the Accept header.
*
* @throws Exception
*/
protected void doDescribeTest(final String method, final RDFFormat format)
throws Exception {
final URI mike = new URIImpl(BD.NAMESPACE + "Mike");
final URI bryan = new URIImpl(BD.NAMESPACE + "Bryan");
final URI person = new URIImpl(BD.NAMESPACE + "Person");
final URI likes = new URIImpl(BD.NAMESPACE + "likes");
final URI rdf = new URIImpl(BD.NAMESPACE + "RDF");
final URI rdfs = new URIImpl(BD.NAMESPACE + "RDFS");
final Literal label1 = new LiteralImpl("Mike");
final Literal label2 = new LiteralImpl("Bryan");
{
final Graph g = new LinkedHashModel();
g.add(mike, RDF.TYPE, person);
g.add(mike, likes, rdf);
g.add(mike, RDFS.LABEL, label1);
g.add(bryan, RDF.TYPE, person);
g.add(bryan, likes, rdfs);
g.add(bryan, RDFS.LABEL, label2);
m_repo.add(new AddOp(g));
}
// The expected results.
final Graph expected = new LinkedHashModel();
{
expected.add(new StatementImpl(mike, likes, rdf));
expected.add(new StatementImpl(mike, RDF.TYPE, person));
expected.add(new StatementImpl(mike, RDFS.LABEL, label1));
}
// Run the query and verify the results.
{
final String queryStr =
"prefix bd: <"+BD.NAMESPACE+"> " +//
"prefix rdf: <"+RDF.NAMESPACE+"> " +//
"prefix rdfs: <"+RDFS.NAMESPACE+"> " +//
"DESCRIBE ?x " +//
"WHERE { " +//
" ?x rdf:type bd:Person . " +//
" ?x bd:likes bd:RDF " +//
"}";
assertSameGraph(expected, m_repo.prepareGraphQuery(queryStr));
}
}
Example 7
| Source File: TestSesameFilters.java From database with GNU General Public License v2.0 | 4 votes |
|
public void testRegex() throws Exception {
// final Sail sail = new MemoryStore();
// sail.initialize();
// final Repository repo = new SailRepository(sail);
final BigdataSail sail = getSail();
sail.initialize();
final BigdataSailRepository repo = new BigdataSailRepository(sail);
final RepositoryConnection cxn = repo.getConnection();
cxn.setAutoCommit(false);
try {
final ValueFactory vf = sail.getValueFactory();
/*
* Create some terms.
*/
final URI mike = vf.createURI(BD.NAMESPACE + "mike");
final URI bryan = vf.createURI(BD.NAMESPACE + "bryan");
final URI person = vf.createURI(BD.NAMESPACE + "Person");
final Literal l1 = vf.createLiteral("mike personick");
final Literal l2 = vf.createLiteral("bryan thompson");
/*
* Create some statements.
*/
cxn.add(mike, RDF.TYPE, person);
cxn.add(mike, RDFS.LABEL, l1);
cxn.add(bryan, RDF.TYPE, person);
cxn.add(bryan, RDFS.LABEL, l2);
/*
* Note: The either flush() or commit() is required to flush the
* statement buffers to the database before executing any operations
* that go around the sail.
*/
cxn.commit();
{
String query =
"prefix bd: <"+BD.NAMESPACE+"> " +
"prefix rdf: <"+RDF.NAMESPACE+"> " +
"prefix rdfs: <"+RDFS.NAMESPACE+"> " +
"select * " +
"where { " +
" ?s rdf:type bd:Person . " +
" ?s rdfs:label ?label . " +
" FILTER regex(?label, \"mike\") . " +
"}";
final SailTupleQuery tupleQuery = (SailTupleQuery)
cxn.prepareTupleQuery(QueryLanguage.SPARQL, query);
tupleQuery.setIncludeInferred(false /* includeInferred */);
final Collection<BindingSet> answer = new LinkedList<BindingSet>();
answer.add(createBindingSet(
new BindingImpl("s", mike),
new BindingImpl("label", l1)
));
final TupleQueryResult result = tupleQuery.evaluate();
compare(result, answer);
}
} finally {
cxn.close();
sail.shutDown();
}
}
Example 8
| Source File: TestBOps.java From database with GNU General Public License v2.0 | 4 votes |
|
public void testSimpleJoin() throws Exception {
final BigdataSail sail = getSail();
try {
sail.initialize();
final BigdataSailRepository repo = new BigdataSailRepository(sail);
final BigdataSailRepositoryConnection cxn =
(BigdataSailRepositoryConnection) repo.getConnection();
cxn.setAutoCommit(false);
try {
// final ValueFactory vf = sail.getValueFactory();
final String ns = BD.NAMESPACE;
final URI mike = new URIImpl(ns+"Mike");
final URI bryan = new URIImpl(ns+"Bryan");
final URI person = new URIImpl(ns+"Person");
final URI likes = new URIImpl(ns+"likes");
final URI rdf = new URIImpl(ns+"RDF");
final Literal l1 = new LiteralImpl("Mike");
final Literal l2 = new LiteralImpl("Bryan");
/**/
cxn.setNamespace("ns", ns);
cxn.add(mike, RDF.TYPE, person);
cxn.add(mike, likes, rdf);
cxn.add(mike, RDFS.LABEL, l1);
cxn.add(bryan, RDF.TYPE, person);
cxn.add(bryan, likes, rdf);
cxn.add(bryan, RDFS.LABEL, l2);
/*
* Note: The either flush() or commit() is required to flush the
* statement buffers to the database before executing any operations
* that go around the sail.
*/
cxn.flush();//commit();
cxn.commit();//
if (log.isInfoEnabled()) {
log.info("\n" + cxn.getTripleStore().dumpStore());
}
{
final String query =
"PREFIX rdf: <"+RDF.NAMESPACE+"> " +
"PREFIX rdfs: <"+RDFS.NAMESPACE+"> " +
"PREFIX ns: <"+ns+"> " +
"select * " +
"WHERE { " +
" ?s rdf:type ns:Person . " +
" ?s ns:likes ?likes . " +
" ?s rdfs:label ?label . " +
"}";
final TupleQuery tupleQuery =
cxn.prepareTupleQuery(QueryLanguage.SPARQL, query);
final TupleQueryResult result = tupleQuery.evaluate();
// while (result.hasNext()) {
// System.err.println(result.next());
// }
final Collection<BindingSet> solution = new LinkedList<BindingSet>();
solution.add(createBindingSet(new Binding[] {
new BindingImpl("s", mike),
new BindingImpl("likes", rdf),
new BindingImpl("label", l1)
}));
solution.add(createBindingSet(new Binding[] {
new BindingImpl("s", bryan),
new BindingImpl("likes", rdf),
new BindingImpl("label", l2)
}));
compare(result, solution);
}
} finally {
cxn.close();
}
} finally {
sail.__tearDownUnitTest();
}
}
Example 9
| Source File: TestBOps.java From database with GNU General Public License v2.0 | 4 votes |
|
public void testSimpleConstraint() throws Exception {
final BigdataSail sail = getSail();
try {
sail.initialize();
final BigdataSailRepository repo = new BigdataSailRepository(sail);
final BigdataSailRepositoryConnection cxn =
(BigdataSailRepositoryConnection) repo.getConnection();
cxn.setAutoCommit(false);
try {
final ValueFactory vf = sail.getValueFactory();
final String ns = BD.NAMESPACE;
final URI jill = new URIImpl(ns+"Jill");
final URI jane = new URIImpl(ns+"Jane");
final URI person = new URIImpl(ns+"Person");
final URI age = new URIImpl(ns+"age");
final URI IQ = new URIImpl(ns+"IQ");
final Literal l1 = new LiteralImpl("Jill");
final Literal l2 = new LiteralImpl("Jane");
final Literal age1 = vf.createLiteral(20);
final Literal age2 = vf.createLiteral(30);
final Literal IQ1 = vf.createLiteral(130);
final Literal IQ2 = vf.createLiteral(140);
/**/
cxn.setNamespace("ns", ns);
cxn.add(jill, RDF.TYPE, person);
cxn.add(jill, RDFS.LABEL, l1);
cxn.add(jill, age, age1);
cxn.add(jill, IQ, IQ1);
cxn.add(jane, RDF.TYPE, person);
cxn.add(jane, RDFS.LABEL, l2);
cxn.add(jane, age, age2);
cxn.add(jane, IQ, IQ2);
/*
* Note: The either flush() or commit() is required to flush the
* statement buffers to the database before executing any operations
* that go around the sail.
*/
cxn.flush();//commit();
cxn.commit();//
if (log.isInfoEnabled()) {
log.info("\n" + cxn.getTripleStore().dumpStore());
}
{
final String query =
"PREFIX rdf: <"+RDF.NAMESPACE+"> " +
"PREFIX rdfs: <"+RDFS.NAMESPACE+"> " +
"PREFIX ns: <"+ns+"> " +
"select * " +
"WHERE { " +
" ?s rdf:type ns:Person . " +
" ?s ns:age ?age . " +
" ?s ns:IQ ?iq . " +
" ?s rdfs:label ?label . " +
" FILTER( ?age < 25 && ?iq > 125 ) . " +
"}";
final TupleQuery tupleQuery =
cxn.prepareTupleQuery(QueryLanguage.SPARQL, query);
final TupleQueryResult result = tupleQuery.evaluate();
// while (result.hasNext()) {
// System.err.println(result.next());
// }
final Collection<BindingSet> solution = new LinkedList<BindingSet>();
solution.add(createBindingSet(new Binding[] {
new BindingImpl("s", jill),
new BindingImpl("age", age1),
new BindingImpl("iq", IQ1),
new BindingImpl("label", l1)
}));
compare(result, solution);
}
} finally {
cxn.close();
}
} finally {
sail.__tearDownUnitTest();
}
}
Example 10
| Source File: TestBOps.java From database with GNU General Public License v2.0 | 4 votes |
|
public void testSimpleOptional() throws Exception {
final BigdataSail sail = getSail();
try {
sail.initialize();
final BigdataSailRepository repo = new BigdataSailRepository(sail);
final BigdataSailRepositoryConnection cxn =
(BigdataSailRepositoryConnection) repo.getConnection();
cxn.setAutoCommit(false);
try {
// final ValueFactory vf = sail.getValueFactory();
final String ns = BD.NAMESPACE;
final URI mike = new URIImpl(ns+"Mike");
final URI bryan = new URIImpl(ns+"Bryan");
final URI person = new URIImpl(ns+"Person");
final URI likes = new URIImpl(ns+"likes");
final URI rdf = new URIImpl(ns+"RDF");
final Literal l1 = new LiteralImpl("Mike");
// final Literal l2 = new LiteralImpl("Bryan");
/**/
cxn.setNamespace("ns", ns);
cxn.add(mike, RDF.TYPE, person);
cxn.add(mike, likes, rdf);
cxn.add(mike, RDFS.LABEL, l1);
cxn.add(bryan, RDF.TYPE, person);
cxn.add(bryan, likes, rdf);
// cxn.add(bryan, RDFS.LABEL, l2);
/*
* Note: The either flush() or commit() is required to flush the
* statement buffers to the database before executing any operations
* that go around the sail.
*/
cxn.flush();//commit();
cxn.commit();//
if (log.isInfoEnabled()) {
log.info("\n" + cxn.getTripleStore().dumpStore());
}
{
final String query =
"PREFIX rdf: <"+RDF.NAMESPACE+"> " +
"PREFIX rdfs: <"+RDFS.NAMESPACE+"> " +
"PREFIX ns: <"+ns+"> " +
"select * " +
"WHERE { " +
" ?s rdf:type ns:Person . " +
" ?s ns:likes ?likes . " +
" OPTIONAL { ?s rdfs:label ?label . } " +
"}";
final TupleQuery tupleQuery =
cxn.prepareTupleQuery(QueryLanguage.SPARQL, query);
final TupleQueryResult result = tupleQuery.evaluate();
// while (result.hasNext()) {
// System.err.println(result.next());
// }
final Collection<BindingSet> solution = new LinkedList<BindingSet>();
solution.add(createBindingSet(new Binding[] {
new BindingImpl("s", mike),
new BindingImpl("likes", rdf),
new BindingImpl("label", l1)
}));
solution.add(createBindingSet(new Binding[] {
new BindingImpl("s", bryan),
new BindingImpl("likes", rdf),
// new BindingImpl("label", l2)
}));
compare(result, solution);
}
} finally {
cxn.close();
}
} finally {
sail.__tearDownUnitTest();
}
}
Example 11
| Source File: TestBOps.java From database with GNU General Public License v2.0 | 4 votes |
|
public void testOrEquals() throws Exception {
final BigdataSail sail = getSail();
try {
sail.initialize();
final BigdataSailRepository repo = new BigdataSailRepository(sail);
final BigdataSailRepositoryConnection cxn =
(BigdataSailRepositoryConnection) repo.getConnection();
cxn.setAutoCommit(false);
try {
// final ValueFactory vf = sail.getValueFactory();
//
// final LexiconRelation lex = sail.getDatabase().getLexiconRelation();
final String ns = BD.NAMESPACE;
final URI mike = new URIImpl(ns+"Mike");
final URI bryan = new URIImpl(ns+"Bryan");
final URI martyn = new URIImpl(ns+"Martyn");
final URI person = new URIImpl(ns+"Person");
final URI p = new URIImpl(ns+"p");
final Literal l1 = new LiteralImpl("Mike");
final Literal l2 = new LiteralImpl("Bryan");
final Literal l3 = new LiteralImpl("Martyn");
/**/
cxn.setNamespace("ns", ns);
cxn.add(mike, RDF.TYPE, person);
cxn.add(mike, RDFS.LABEL, l1);
cxn.add(bryan, RDF.TYPE, person);
cxn.add(bryan, RDFS.COMMENT, l2);
cxn.add(martyn, RDF.TYPE, person);
cxn.add(martyn, p, l3);
/*
* Note: The either flush() or commit() is required to flush the
* statement buffers to the database before executing any operations
* that go around the sail.
*/
cxn.flush();//commit();
cxn.commit();//
if (log.isInfoEnabled()) {
log.info("\n" + cxn.getTripleStore().dumpStore());
}
{
String query =
"PREFIX rdf: <"+RDF.NAMESPACE+"> " +
"PREFIX rdfs: <"+RDFS.NAMESPACE+"> " +
"PREFIX ns: <"+ns+"> " +
"select * " +
"WHERE { " +
" ?s rdf:type ns:Person . " +
" ?s ?p ?label . " +
" FILTER ( ?p = rdfs:label || ?p = rdfs:comment ) . " +
"}";
final TupleQuery tupleQuery =
cxn.prepareTupleQuery(QueryLanguage.SPARQL, query);
final TupleQueryResult result = tupleQuery.evaluate();
// while (result.hasNext()) {
// System.err.println(result.next());
// }
final Collection<BindingSet> solution = new LinkedList<BindingSet>();
solution.add(createBindingSet(new Binding[] {
new BindingImpl("s", mike),
new BindingImpl("p", RDFS.LABEL),
new BindingImpl("label", l1)
}));
solution.add(createBindingSet(new Binding[] {
new BindingImpl("s", bryan),
new BindingImpl("p", RDFS.COMMENT),
new BindingImpl("label", l2)
}));
compare(result, solution);
}
} finally {
cxn.close();
}
} finally {
sail.__tearDownUnitTest();
}
}
