/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 gobblin.runtime.listeners;
import org.slf4j.Logger;
import com.google.common.base.Optional;
import gobblin.runtime.JobContext;
/**
* An abstract implementation of {@link JobListener} which ensures that
* subclasses do not have to implement all lifecycle events.
*
* @author Joel Baranick
*/
public abstract class AbstractJobListener implements JobListener {
private final Optional<Logger> _log;
public AbstractJobListener(Optional<Logger> log) {
_log = log;
}
public AbstractJobListener() {
this(Optional.<Logger>absent());
}
@Override
public void onJobPrepare(JobContext jobContext) throws Exception {
if (_log.isPresent()) {
_log.get().info("jobPrepare: " + jobContext);
}
}
@Override
public void onJobStart(JobContext jobContext) throws Exception {
if (_log.isPresent()) {
_log.get().info("jobStart: " + jobContext);
}
}
@Override
public void onJobCompletion(JobContext jobContext) throws Exception {
if (_log.isPresent()) {
_log.get().info("jobCompletion: " + jobContext);
}
}
@Override
public void onJobCancellation(JobContext jobContext) throws Exception {
if (_log.isPresent()) {
_log.get().info("jobCancellation: " + jobContext);
}
}
@Override
public void onJobFailure(JobContext jobContext) throws Exception {
if (_log.isPresent()) {
_log.get().info("jobFailure: " + jobContext);
}
}
protected Optional<Logger> getLog() {
return _log;
}
}