package org.castor.jpa.scenario.version;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.exolab.castor.jdo.CacheManager;
import org.exolab.castor.jdo.Database;
import org.exolab.castor.jdo.JDOManager;
import org.exolab.castor.jdo.ObjectModifiedException;
import org.exolab.castor.jdo.PersistenceException;
import org.junit.After;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
import org.junit.runner.RunWith;
import static org.junit.Assert.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.transaction.TransactionConfiguration;
import org.springframework.transaction.annotation.Transactional;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration
@TransactionConfiguration(transactionManager = "transactionManager", defaultRollback = true)
@Transactional
public class VersionITCase {
public final Log LOG = LogFactory.getLog(getClass());
@Autowired
protected JDOManager jdoManager;
Database db;
CacheManager cacheManager;
@Before
@Transactional
public void initDb() throws PersistenceException {
db = jdoManager.getDatabase();
assertNotNull(db);
}
@After
@Transactional
public void cleanDb() throws PersistenceException {
if (db.isActive()) {
db.rollback();
}
db.close();
}
@Test
@Transactional
public void versionWillBeAlteredUponUpdate() throws Exception {
OftenUsed object = createPersistentObject(OftenUsed.class);
long version1 = object.getVersion();
changeName(object, "name");
long version2 = object.getVersion();
assertTrue(version1 != version2);
}
@Test(expected = ObjectModifiedException.class)
@Transactional
public void exceptionWillBeThrownUponConcurrentModification()
throws Exception {
OftenUsed object = createPersistentObject(OftenUsed.class);
OftenUsed failing = loadPersistentObject(OftenUsed.class,
object.getId());
changeName(object, "name");
changeName(failing, "failing");
}
@Test
@Transactional
public void versionWillBeAlteredUponUpdateOfNonCachingEntity()
throws Exception {
NonCached object = createPersistentObject(NonCached.class);
long version1 = object.getVersion();
changeName(object, "name");
long version2 = object.getVersion();
assertTrue(version1 != version2);
}
@Ignore
@Transactional
public void exceptionWillBeThrownUponConcurrentModificationOfNonCachingEntity()
throws Exception {
NonCached object = createPersistentObject(NonCached.class);
NonCached failing = loadPersistentObject(NonCached.class,
object.getId());
changeName(object, "name");
changeName(failing, "failing");
}
private <T extends VersionTest> T createPersistentObject(Class<T> k)
throws Exception {
T instance = k.newInstance();
db.begin();
db.create(instance);
db.commit();
return instance;
}
@SuppressWarnings("unchecked")
private <T extends VersionTest> T loadPersistentObject(Class<T> k, long id) throws Exception {
db.begin();
T loaded = (T) db
.getOQLQuery(
"select s from " + k.getCanonicalName()
+ " s where s.id=" + id).execute().next();
db.commit();
return loaded;
}
private void changeName(VersionTest object, String name) throws Exception {
db.begin();
object.setName(name);
db.update(object);
db.commit();
}
}