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PolymorphicSelectQueryRunner.java
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PolymorphicSelectQueryRunner.java
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/**
* Copyright (C) 2016 Czech Technical University in Prague
*
* 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.
*
* 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.query.runner;
import cz.cvut.kbss.jopa.CommonVocabulary;
import cz.cvut.kbss.jopa.model.EntityManager;
import cz.cvut.kbss.jopa.test.OWLClassS;
import cz.cvut.kbss.jopa.test.OWLClassSParent;
import cz.cvut.kbss.jopa.test.OWLClassT;
import cz.cvut.kbss.jopa.test.Vocabulary;
import cz.cvut.kbss.jopa.test.environment.Generators;
import cz.cvut.kbss.jopa.test.query.QueryTestEnvironment;
import org.junit.Test;
import org.slf4j.Logger;
import java.net.URI;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import static org.junit.Assert.*;
public abstract class PolymorphicSelectQueryRunner extends BaseQueryRunner {
protected PolymorphicSelectQueryRunner(Logger logger) {
super(logger);
}
@Test
public void selectLoadsInstanceOfMostConcreteSubclassOfAbstractEntity() {
final OWLClassT t = Generators.getRandomItem(QueryTestEnvironment.getData(OWLClassT.class));
final EntityManager em = getEntityManager();
final OWLClassSParent result =
em.createNativeQuery("SELECT ?x WHERE { ?x ?hasName ?name . }", OWLClassSParent.class)
.setParameter("hasName", URI.create(CommonVocabulary.RDFS_LABEL))
.setParameter("name", t.getName(), "en").getSingleResult();
assertNotNull(result);
assertTrue(result instanceof OWLClassT);
verifyEntityTAttributes(t, (OWLClassT) result);
}
private void verifyEntityTAttributes(OWLClassT expected, OWLClassT actual) {
assertEquals(expected.getUri(), actual.getUri());
assertEquals(expected.getName(), actual.getName());
assertEquals(expected.getDescription(), actual.getDescription());
assertEquals(expected.getIntAttribute(), actual.getIntAttribute());
assertEquals(expected.getOwlClassA().getUri(), actual.getOwlClassA().getUri());
}
@Test
public void selectLoadsInstanceOfMostConcreteSubclassOfConcreteEntity() {
final OWLClassT t = Generators.getRandomItem(QueryTestEnvironment.getData(OWLClassT.class));
final EntityManager em = getEntityManager();
final OWLClassS result =
em.createNativeQuery("SELECT ?x WHERE { ?x ?hasName ?name . }", OWLClassS.class)
.setParameter("hasName", URI.create(CommonVocabulary.RDFS_LABEL))
.setParameter("name", t.getName(), "en").getSingleResult();
assertNotNull(result);
assertTrue(result instanceof OWLClassT);
verifyEntityTAttributes(t, (OWLClassT) result);
}
@Test
public void selectByTypeLoadsAllIndividualsAsMostConcreteSubclassInstances() {
final List<OWLClassT> data = QueryTestEnvironment.getData(OWLClassT.class);
final EntityManager em = getEntityManager();
// This will cause the type resolver to have to do some work
em.getTransaction().begin();
data.forEach(t -> {
t.setTypes(new HashSet<>(Arrays.asList(Vocabulary.C_OWL_CLASS_S_PARENT, Vocabulary.C_OWL_CLASS_S)));
em.merge(t);
});
em.getTransaction().commit();
final List<OWLClassSParent> result =
em.createNativeQuery("SELECT ?x WHERE { ?x a ?type . }", OWLClassSParent.class)
.setParameter("type", URI.create(
Vocabulary.C_OWL_CLASS_S_PARENT)).getResultList();
assertEquals(data.size(), result.size());
boolean found;
for (OWLClassT t : data) {
found = false;
for (OWLClassSParent tt : result) {
if (t.getUri().equals(tt.getUri())) {
found = true;
assertTrue(tt instanceof OWLClassT);
verifyEntityTAttributes(t, (OWLClassT) tt);
break;
}
}
assertTrue(found);
}
}
@Test
public void selectLoadsInstanceAsGivenTypeWhenItIsConcreteAndFoundInTypesOfIndividual() {
final OWLClassT t = Generators.getRandomItem(QueryTestEnvironment.getData(OWLClassT.class));
final EntityManager em = getEntityManager();
em.getTransaction().begin();
t.setTypes(Collections.singleton(Vocabulary.C_OWL_CLASS_S));
em.merge(t);
em.getTransaction().commit();
final OWLClassS result = em.createNativeQuery("SELECT ?x WHERE { ?x ?hasInt ?int. }", OWLClassS.class)
.setParameter("hasInt", URI.create(Vocabulary.P_T_INTEGER_ATTRIBUTE))
.setParameter("int", t.getIntAttribute()).getSingleResult();
assertNotNull(result);
assertFalse(result instanceof OWLClassT);
assertEquals(t.getName(), result.getName());
assertEquals(t.getDescription(), result.getDescription());
assertTrue(result.getTypes().contains(Vocabulary.C_OWL_CLASS_T));
}
}