| /* |
| * 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.beam.runners.jet.metrics; |
| |
| import com.hazelcast.jet.IMapJet; |
| import com.hazelcast.jet.Util; |
| import com.hazelcast.jet.core.Processor; |
| import java.io.Serializable; |
| import java.util.HashMap; |
| import java.util.Map; |
| import org.apache.beam.runners.core.metrics.DistributionData; |
| import org.apache.beam.runners.core.metrics.GaugeData; |
| import org.apache.beam.runners.core.metrics.MetricUpdates; |
| import org.apache.beam.sdk.metrics.Counter; |
| import org.apache.beam.sdk.metrics.Distribution; |
| import org.apache.beam.sdk.metrics.Gauge; |
| import org.apache.beam.sdk.metrics.MetricKey; |
| import org.apache.beam.sdk.metrics.MetricName; |
| import org.apache.beam.sdk.metrics.MetricsContainer; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.ImmutableList; |
| |
| /** Jet specific implementation of {@link MetricsContainer}. */ |
| public class JetMetricsContainer implements MetricsContainer { |
| |
| public static String getMetricsMapName(long jobId) { |
| return Util.idToString(jobId) + "_METRICS"; |
| } |
| |
| private final String stepName; |
| private final String metricsKey; |
| |
| private final Map<MetricName, CounterImpl> counters = new HashMap<>(); |
| private final Map<MetricName, DistributionImpl> distributions = new HashMap<>(); |
| private final Map<MetricName, GaugeImpl> gauges = new HashMap<>(); |
| |
| private final IMapJet<String, MetricUpdates> accumulator; |
| |
| public JetMetricsContainer(String stepName, String ownerId, Processor.Context context) { |
| this.metricsKey = context.globalProcessorIndex() + "/" + stepName + "/" + ownerId; |
| this.stepName = stepName; |
| this.accumulator = context.jetInstance().getMap(getMetricsMapName(context.jobId())); |
| } |
| |
| @Override |
| public Counter getCounter(MetricName metricName) { |
| return counters.computeIfAbsent(metricName, CounterImpl::new); |
| } |
| |
| @Override |
| public Distribution getDistribution(MetricName metricName) { |
| return distributions.computeIfAbsent(metricName, DistributionImpl::new); |
| } |
| |
| @Override |
| public Gauge getGauge(MetricName metricName) { |
| return gauges.computeIfAbsent(metricName, GaugeImpl::new); |
| } |
| |
| @SuppressWarnings("FutureReturnValueIgnored") |
| public void flush(boolean async) { |
| if (counters.isEmpty() && distributions.isEmpty() && gauges.isEmpty()) { |
| return; |
| } |
| |
| ImmutableList<MetricUpdates.MetricUpdate<Long>> counters = extractUpdates(this.counters); |
| ImmutableList<MetricUpdates.MetricUpdate<DistributionData>> distributions = |
| extractUpdates(this.distributions); |
| ImmutableList<MetricUpdates.MetricUpdate<GaugeData>> gauges = extractUpdates(this.gauges); |
| MetricUpdates updates = new MetricUpdatesImpl(counters, distributions, gauges); |
| |
| if (async) { |
| accumulator.setAsync(metricsKey, updates); |
| } else { |
| accumulator.set(metricsKey, updates); |
| } |
| } |
| |
| private <UpdateT, CellT extends AbstractMetric<UpdateT>> |
| ImmutableList<MetricUpdates.MetricUpdate<UpdateT>> extractUpdates( |
| Map<MetricName, CellT> cells) { |
| ImmutableList.Builder<MetricUpdates.MetricUpdate<UpdateT>> updates = ImmutableList.builder(); |
| for (CellT cell : cells.values()) { |
| UpdateT value = cell.getValue(); |
| if (value != null) { |
| MetricKey key = MetricKey.create(stepName, cell.getName()); |
| MetricUpdates.MetricUpdate<UpdateT> update = MetricUpdates.MetricUpdate.create(key, value); |
| updates.add(update); |
| } |
| } |
| return updates.build(); |
| } |
| |
| private static class MetricUpdatesImpl extends MetricUpdates implements Serializable { |
| |
| private final Iterable<MetricUpdate<Long>> counters; |
| private final Iterable<MetricUpdate<DistributionData>> distributions; |
| private final Iterable<MetricUpdate<GaugeData>> gauges; |
| |
| MetricUpdatesImpl( |
| Iterable<MetricUpdate<Long>> counters, |
| Iterable<MetricUpdate<DistributionData>> distributions, |
| Iterable<MetricUpdate<GaugeData>> gauges) { |
| this.counters = counters; |
| this.distributions = distributions; |
| this.gauges = gauges; |
| } |
| |
| @Override |
| public Iterable<MetricUpdate<Long>> counterUpdates() { |
| return counters; |
| } |
| |
| @Override |
| public Iterable<MetricUpdate<DistributionData>> distributionUpdates() { |
| return distributions; |
| } |
| |
| @Override |
| public Iterable<MetricUpdate<GaugeData>> gaugeUpdates() { |
| return gauges; |
| } |
| } |
| } |