jiangzho commented on code in PR #12: URL: https://github.com/apache/spark-kubernetes-operator/pull/12#discussion_r1681816265
########## spark-operator/src/main/java/org/apache/spark/k8s/operator/metrics/MetricsSystem.java: ########## @@ -0,0 +1,139 @@ +/* + * 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 org.apache.spark.k8s.operator.metrics; + +import java.util.HashSet; +import java.util.Map; +import java.util.Properties; +import java.util.Set; +import java.util.concurrent.atomic.AtomicBoolean; + +import com.codahale.metrics.MetricFilter; +import com.codahale.metrics.MetricRegistry; +import lombok.Data; +import lombok.Getter; +import lombok.extern.slf4j.Slf4j; + +import org.apache.spark.k8s.operator.metrics.source.OperatorJvmSource; +import org.apache.spark.metrics.sink.Sink; +import org.apache.spark.metrics.source.Source; + +@Slf4j +public class MetricsSystem { + private final AtomicBoolean running = new AtomicBoolean(false); + @Getter private final Set<Sink> sinks; + @Getter private final Set<Source> sources; + @Getter private final MetricRegistry registry; + @Getter private final Properties properties; + // PrometheusPullModelHandler is registered by default, metrics exposed via http port + @Getter private final PrometheusPullModelHandler prometheusPullModelHandler; + private final Map<String, SinkProps> sinkPropertiesMap; + + public MetricsSystem() { + this(new Properties()); + } + + public MetricsSystem(Properties properties) { + this.sources = new HashSet<>(); + this.sinks = new HashSet<>(); + this.registry = new MetricRegistry(); + this.properties = properties; + this.sinkPropertiesMap = MetricsSystemFactory.parseSinkProperties(this.properties); + // Add default sinks + this.prometheusPullModelHandler = new PrometheusPullModelHandler(new Properties(), registry); + this.sinks.add(prometheusPullModelHandler); + } + + public void start() { + if (running.get()) { + throw new IllegalStateException( + "Attempting to start a MetricsSystem that is already running"); + } + running.set(true); + registerDefaultSources(); + registerSinks(); + sinks.forEach(Sink::start); + } + + public void stop() { + if (running.get()) { + sinks.forEach(Sink::stop); + registry.removeMatching(MetricFilter.ALL); + } else { + log.error("Stopping a MetricsSystem that is not running"); + } + running.set(false); + } + + public void report() { + sinks.forEach(Sink::report); + } + + protected void registerDefaultSources() { + registerSource(new OperatorJvmSource()); + } + + protected void registerSinks() { + log.info("sinkPropertiesMap: {}", sinkPropertiesMap); + sinkPropertiesMap + .values() + .forEach( + sinkProp -> { + try { + Class<Sink> sinkClass = (Class<Sink>) Class.forName(sinkProp.getClassName()); + Sink sinkInstance; + sinkInstance = Review Comment: this is auto-formatted by spotless with respect to Google style guide about line breaking -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org
