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JenaDataAccessor.java
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JenaDataAccessor.java
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package cz.cvut.kbss.jopa.test.environment;
import cz.cvut.kbss.jopa.model.EntityManager;
import cz.cvut.kbss.ontodriver.jena.connector.StorageConnector;
import org.apache.jena.query.Dataset;
import org.apache.jena.rdf.model.*;
import java.net.URI;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import static org.apache.jena.rdf.model.ResourceFactory.*;
import static org.junit.Assert.assertTrue;
public class JenaDataAccessor implements DataAccessor {
@Override
public void persistTestData(Collection<Triple> data, EntityManager em) throws Exception {
final StorageConnector ds = em.unwrap(StorageConnector.class);
ds.begin();
final List<Statement> toAdd = new ArrayList<>(data.size());
for (Triple t : data) {
final Resource subject = createResource(t.getSubject().toString());
final Property property = createProperty(t.getProperty().toString());
final RDFNode value;
if (t.getValue() instanceof URI) {
value = createResource(t.getValue().toString());
} else {
value = t.getValue() instanceof String ?
ResourceFactory.createLangLiteral(t.getValue().toString(), t.getLanguage()) :
ResourceFactory.createTypedLiteral(t.getValue());
}
toAdd.add(createStatement(subject, property, value));
}
ds.add(toAdd);
ds.commit();
}
@Override
public void verifyDataPresence(Collection<Triple> expected, EntityManager em) {
final Dataset ds = em.unwrap(Dataset.class);
final Model model = ds.getDefaultModel();
for (Triple t : expected) {
if (t.getValue() instanceof URI) {
assertTrue(model.contains(createResource(t.getSubject().toString()),
createProperty(t.getProperty().toString()), createResource(t.getValue().toString())));
} else {
if (t.getLanguage() != null) {
assertTrue(model.contains(createResource(t.getSubject().toString()),
createProperty(t.getProperty().toString()),
createLangLiteral(t.getValue().toString(), t.getLanguage())));
} else {
assertTrue(model.contains(createResource(t.getSubject().toString()),
createProperty(t.getProperty().toString()), createTypedLiteral(t.getValue())));
}
}
}
}
}