monasca-api/java/src/main/java/monasca/api/infrastructure/persistence/hibernate/BaseSqlRepo.java

69 lines
2.0 KiB
Java

/*
* Copyright 2015 FUJITSU LIMITED
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License
* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the License for the specific language governing permissions and limitations under
* the License.
*
*/
package monasca.api.infrastructure.persistence.hibernate;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.Marker;
import org.slf4j.MarkerFactory;
/**
* Abstract foundation for ORM repositories.
*/
abstract class BaseSqlRepo {
protected static final Marker ORM_LOG_MARKER = MarkerFactory.getMarker("ORM");
private static final Logger LOG = LoggerFactory.getLogger(BaseSqlRepo.class);
protected final SessionFactory sessionFactory;
protected BaseSqlRepo(final SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
/**
* Rollbacks passed {@code tx} transaction if such is not null.
* Assumption is being made that {@code tx} being null means transaction
* has been successfully committed.
*
* @param tx {@link Transaction} object
*/
protected void rollbackIfNotNull(final Transaction tx) {
if (tx != null) {
try {
tx.rollback();
} catch (RuntimeException rbe) {
LOG.error(ORM_LOG_MARKER, "Couldn't roll back transaction", rbe);
}
}
}
/**
* Returns <b>UTC</b> based {@link DateTime#now()}
*
* @return current date/time in UTC
*
* @see DateTimeZone#UTC
* @see DateTime#now()
*/
protected DateTime getUTCNow() {
return DateTime.now(DateTimeZone.UTC);
}
}