com.netflix.genie.web.events.JobNotificationMetricPublisher Maven / Gradle / Ivy
/*
*
* Copyright 2019 Netflix, Inc.
*
* 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 com.netflix.genie.web.events;
import com.google.common.collect.Sets;
import com.netflix.genie.web.util.MetricsConstants;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.Tag;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.ApplicationListener;
/**
* Listens to job status changes and publishes metrics.
*
* @author mprimi
* @since 4.0.0
*/
@Slf4j
public class JobNotificationMetricPublisher implements ApplicationListener {
private static final String STATE_TRANSITION_METRIC_NAME = "genie.jobs.notifications.state-transition.counter";
private static final String FINAL_STATE_METRIC_NAME = "genie.jobs.notifications.final-state.counter";
private final MeterRegistry registry;
/**
* Constructor.
*
* @param registry metrics registry
*/
public JobNotificationMetricPublisher(final MeterRegistry registry) {
this.registry = registry;
}
/**
* {@inheritDoc}
*/
@Override
public void onApplicationEvent(final JobStateChangeEvent event) {
final String fromStateString = event.getPreviousStatus() == null ? "null" : event.getPreviousStatus().name();
final String toStateString = event.getNewStatus().name();
final boolean isFinalState = event.getNewStatus().isFinished();
log.debug(
"Job '{}' changed state from {} to {} {}",
event.getJobId(),
fromStateString,
toStateString,
isFinalState ? "(final state)" : ""
);
// Increment counter for this particular from/to transition
this.registry.counter(
STATE_TRANSITION_METRIC_NAME,
Sets.newHashSet(
Tag.of(MetricsConstants.TagKeys.FROM_STATE, fromStateString),
Tag.of(MetricsConstants.TagKeys.TO_STATE, toStateString)
)
).increment();
// Increment counter for final state
if (isFinalState) {
this.registry.counter(
FINAL_STATE_METRIC_NAME,
MetricsConstants.TagKeys.TO_STATE,
toStateString
).increment();
}
}
}