content: /*
   * 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.Collections;
  import java.util.List;
  import org.apache.beam.sdk.util.HistogramData;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.collect.ImmutableList;
  
  /** The results of a query for metrics. Allows accessing all the metrics that matched the filter. */
  @AutoValue
  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();
  
    /** Return the metric results for the sets that matched the filter. */
    public abstract Iterable<MetricResult<StringSetResult>> getStringSets();
  
    /** Return the metric results for the bounded tries that matched the filter. */
    public abstract Iterable<MetricResult<BoundedTrieResult>> getBoundedTries();
  
    /** Return the metric results for the sets that matched the filter. */
    public abstract Iterable<MetricResult<HistogramData>> getHistograms();
  
    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(", ");
          }
          sb.append(metricResult.getKey()).append(": ").append(metricResult.getAttempted());
          if (metricResult.hasCommitted()) {
            T committed = metricResult.getCommitted();
            sb.append(", ").append(committed);
          }
        }
        sb.append(")");
      }
    }
  
    @Override
    public final String toString() {
      StringBuilder sb = new StringBuilder();
      sb.append("MetricQueryResults(");
      printMetrics("Counters", getCounters(), sb);
      printMetrics("Distributions", getDistributions(), sb);
      printMetrics("Gauges", getGauges(), sb);
      printMetrics("StringSets", getStringSets(), sb);
      printMetrics("BoundedTries", getBoundedTries(), sb);
      sb.append(")");
      return sb.toString();
    }
  
    public static MetricQueryResults create(
        Iterable<MetricResult<Long>> counters,
        Iterable<MetricResult<DistributionResult>> distributions,
        Iterable<MetricResult<GaugeResult>> gauges,
        Iterable<MetricResult<StringSetResult>> stringSets,
        Iterable<MetricResult<BoundedTrieResult>> boundedTries,
        Iterable<MetricResult<HistogramData>> histogramData) {
      return new AutoValue_MetricQueryResults(
          counters, distributions, gauges, stringSets, boundedTries, Collections.emptyList());
    }
  }
  