| /* |
| * 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.sdk.metrics; |
| |
| import com.google.auto.value.AutoValue; |
| import java.util.List; |
| import org.apache.beam.sdk.annotations.Experimental; |
| import org.apache.beam.sdk.annotations.Experimental.Kind; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.ImmutableList; |
| |
| /** |
| * The results of a query for metrics. Allows accessing all of the metrics that matched the filter. |
| */ |
| @AutoValue |
| @Experimental(Kind.METRICS) |
| public abstract class MetricQueryResults { |
| /** Return the metric results for the counters that matched the filter. */ |
| public abstract Iterable<MetricResult<Long>> getCounters(); |
| |
| /** Return the metric results for the distributions that matched the filter. */ |
| public abstract Iterable<MetricResult<DistributionResult>> getDistributions(); |
| |
| /** Return the metric results for the gauges that matched the filter. */ |
| public abstract Iterable<MetricResult<GaugeResult>> getGauges(); |
| |
| static <T> void printMetrics(String type, Iterable<MetricResult<T>> metrics, StringBuilder sb) { |
| List<MetricResult<T>> metricsList = ImmutableList.copyOf(metrics); |
| if (!metricsList.isEmpty()) { |
| sb.append(type).append("("); |
| boolean first = true; |
| for (MetricResult<T> metricResult : metricsList) { |
| if (first) { |
| first = false; |
| } else { |
| sb.append(", "); |
| } |
| MetricName name = metricResult.getName(); |
| sb.append(metricResult.getKey()).append(": ").append(metricResult.getAttempted()); |
| if (metricResult.hasCommitted()) { |
| T committed = metricResult.getCommitted(); |
| sb.append(", ").append(committed); |
| } |
| } |
| sb.append(")"); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder sb = new StringBuilder(); |
| sb.append("MetricQueryResults("); |
| printMetrics("Counters", getCounters(), sb); |
| printMetrics("Distributions", getDistributions(), sb); |
| printMetrics("Gauges", getGauges(), sb); |
| sb.append(")"); |
| return sb.toString(); |
| } |
| |
| public static MetricQueryResults create( |
| Iterable<MetricResult<Long>> counters, |
| Iterable<MetricResult<DistributionResult>> distributions, |
| Iterable<MetricResult<GaugeResult>> gauges) { |
| return new AutoValue_MetricQueryResults(counters, distributions, gauges); |
| } |
| } |