/*
* 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.std;
import java.net.URI;
import org.slf4j.Logger;
import com.google.common.base.Optional;
import gobblin.runtime.JobState.RunningState;
import gobblin.runtime.api.JobExecutionDriver;
import gobblin.runtime.api.JobExecutionState;
import gobblin.runtime.api.JobLifecycleListener;
import gobblin.runtime.api.JobSpec;
import gobblin.runtime.api.JobSpecSchedule;
/**
* Default NOOP implementation for {@link JobLifecycleListener}. It can log the callbacks. Other
* implementing classes can use this as a base to override only the methods they care about.
*/
public class DefaultJobLifecycleListenerImpl implements JobLifecycleListener {
protected final Optional<Logger> _log;
/**
* Constructor
* @param log if no log is specified, the logging will be done. Logging level is INFO.
*/
public DefaultJobLifecycleListenerImpl(Optional<Logger> log) {
_log = log;
}
public DefaultJobLifecycleListenerImpl(Logger log) {
this(Optional.of(log));
}
/** Constructor with no logging */
public DefaultJobLifecycleListenerImpl() {
this(Optional.<Logger>absent());
}
/** {@inheritDoc} */
@Override public void onAddJob(JobSpec addedJob) {
if (_log.isPresent()) {
_log.get().info("New JobSpec detected: " + addedJob.toShortString());
}
}
/** {@inheritDoc} */
@Override public void onDeleteJob(URI deletedJobURI, String deletedJobVersion) {
if (_log.isPresent()) {
_log.get().info("JobSpec deleted: " + deletedJobURI + "/" + deletedJobVersion);
}
}
/** {@inheritDoc} */
@Override public void onUpdateJob(JobSpec updatedJob) {
if (_log.isPresent()) {
_log.get().info("JobSpec changed: " + updatedJob.toShortString());
}
}
/** {@inheritDoc} */
@Override public void onStatusChange(JobExecutionState state, RunningState previousStatus,
RunningState newStatus) {
if (_log.isPresent()) {
_log.get().info("JobExection status change for " + state.getJobSpec().toShortString() +
": " + previousStatus + " --> " + newStatus);
}
}
/** {@inheritDoc} */
@Override public void onStageTransition(JobExecutionState state, String previousStage, String newStage) {
if (_log.isPresent()) {
_log.get().info("JobExection stage change for " + state.getJobSpec().toShortString() +
": " + previousStage + " --> " + newStage);
}
}
/** {@inheritDoc} */
@Override public void onMetadataChange(JobExecutionState state, String key, Object oldValue, Object newValue) {
if (_log.isPresent()) {
_log.get().info("JobExection metadata change for " + state.getJobSpec().toShortString() +
key + ": '" + oldValue + "' --> '" + newValue + "'");
}
}
@Override public void onJobScheduled(JobSpecSchedule jobSchedule) {
if (_log.isPresent()) {
_log.get().info("job scheduled: " + jobSchedule);
}
}
@Override public void onJobUnscheduled(JobSpecSchedule jobSchedule) {
if (_log.isPresent()) {
_log.get().info("job unscheduled: " + jobSchedule);
}
}
@Override public void onJobTriggered(JobSpec jobSpec) {
if (_log.isPresent()) {
_log.get().info("job triggered: " + jobSpec);
}
}
@Override public void onJobLaunch(JobExecutionDriver jobDriver) {
if (_log.isPresent()) {
_log.get().info("job launched: " + jobDriver);
}
}
}