/*
* Copyright [2014] [Christian Loehnert, krampenschiesser@gmail.com]
* 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 de.ks.persistence.transaction;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.concurrent.atomic.AtomicLong;
import java.util.function.Supplier;
public class Transactional {
private static final Logger log = LoggerFactory.getLogger(Transactional.class);
private static final TransactionProvider provider = TransactionProvider.instance;
private static final AtomicLong counter = new AtomicLong(0L);
public static <T> T withNewTransaction(Supplier<T> supplier) {
return withNewTransaction(String.format("tx%04d", counter.incrementAndGet()), supplier);
}
public static <T> T withNewTransaction(String txName, Supplier<T> supplier) {
SimpleTransaction tx = provider.beginTransaction(txName);
try {
T retval = supplier.get();
tx.prepare();
tx.commit();
log.trace("Successfully committed tx {}", txName);
return retval;
} catch (Throwable t) {
log.error("Could not commit tx {}", txName, t);
tx.rollback();
throw t;
} finally {
provider.removeTransaction(txName);
}
}
}