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SesameDataAccessor.java
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SesameDataAccessor.java
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/**
* Copyright (C) 2019 Czech Technical University in Prague
* <p>
* This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later
* version.
* <p>
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details. You should have received a copy of the GNU General Public License along with this program. If not, see
* <http://www.gnu.org/licenses/>.
*/
package cz.cvut.kbss.jopa.test.environment;
import cz.cvut.kbss.jopa.model.EntityManager;
import cz.cvut.kbss.ontodriver.sesame.util.SesameUtils;
import org.eclipse.rdf4j.model.IRI;
import org.eclipse.rdf4j.model.Value;
import org.eclipse.rdf4j.model.ValueFactory;
import org.eclipse.rdf4j.model.impl.SimpleValueFactory;
import org.eclipse.rdf4j.repository.Repository;
import org.eclipse.rdf4j.repository.RepositoryConnection;
import java.net.URI;
import java.util.Collection;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
public class SesameDataAccessor implements DataAccessor {
private final ValueFactory vf = SimpleValueFactory.getInstance();
@Override
public void persistTestData(Collection<Quad> data, EntityManager em) {
final Repository repository = em.unwrap(Repository.class);
try (final RepositoryConnection connection = repository.getConnection()) {
connection.begin();
for (Quad t : data) {
if (t.getContext() != null) {
connection
.add(toIri(t.getSubject()), toIri(t.getProperty()), toValue(t.getValue(), t.getLanguage()),
toIri(t.getContext()));
} else {
connection
.add(toIri(t.getSubject()), toIri(t.getProperty()), toValue(t.getValue(), t.getLanguage()));
}
}
connection.commit();
}
}
private IRI toIri(URI uri) {
return vf.createIRI(uri.toString());
}
private Value toValue(Object value, String language) {
return value instanceof URI ? toIri((URI) value) : SesameUtils.createDataPropertyLiteral(value, language, vf);
}
@Override
public void verifyDataPresent(Collection<Quad> data, EntityManager em) {
final Repository repository = em.unwrap(Repository.class);
try (final RepositoryConnection connection = repository.getConnection()) {
data.forEach(t -> assertTrue(doesQuadExist(t, connection)));
}
}
private boolean doesQuadExist(Quad t, RepositoryConnection connection) {
if (t.getContext() != null) {
return connection
.hasStatement(toIri(t.getSubject()), toIri(t.getProperty()), toValue(t.getValue(), t.getLanguage()),
false, toIri(t.getContext()));
} else {
return connection
.hasStatement(toIri(t.getSubject()), toIri(t.getProperty()), toValue(t.getValue(), t.getLanguage()),
false);
}
}
@Override
public void verifyDataNotPresent(Collection<Quad> data, EntityManager em) {
final Repository repository = em.unwrap(Repository.class);
try (final RepositoryConnection connection = repository.getConnection()) {
data.forEach(t -> assertFalse(doesQuadExist(t, connection)));
}
}
}