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.kafka.clients.consumer.internals.metrics;
  
  import org.apache.kafka.common.MetricName;
  import org.apache.kafka.common.metrics.Metrics;
  import org.apache.kafka.common.metrics.Sensor;
  import org.apache.kafka.common.metrics.stats.Avg;
  import org.apache.kafka.common.metrics.stats.Max;
  import org.apache.kafka.common.metrics.stats.Meter;
  import org.apache.kafka.common.metrics.stats.WindowedCount;
  
  import static org.apache.kafka.clients.consumer.internals.ConsumerUtils.CONSUMER_METRIC_GROUP_PREFIX;
  import static org.apache.kafka.clients.consumer.internals.ConsumerUtils.COORDINATOR_METRICS_SUFFIX;
  
  public class OffsetCommitMetricsManager {
      final MetricName commitLatencyAvg;
      final MetricName commitLatencyMax;
      final MetricName commitRate;
      final MetricName commitTotal;
      private final Sensor commitSensor;
  
      public OffsetCommitMetricsManager(Metrics metrics) {
          final String metricGroupName = CONSUMER_METRIC_GROUP_PREFIX + COORDINATOR_METRICS_SUFFIX;
          commitSensor = metrics.sensor("commit-latency");
          commitLatencyAvg = metrics.metricName("commit-latency-avg",
              metricGroupName,
              "The average time taken for a commit request");
          commitSensor.add(commitLatencyAvg, new Avg());
          commitLatencyMax = metrics.metricName("commit-latency-max",
              metricGroupName,
              "The max time taken for a commit request");
          commitSensor.add(commitLatencyMax, new Max());
          commitRate = metrics.metricName("commit-rate",
              metricGroupName,
              "The number of commit calls per second");
          commitTotal = metrics.metricName("commit-total",
              metricGroupName,
              "The total number of commit calls");
          commitSensor.add(new Meter(new WindowedCount(),
              commitRate,
              commitTotal));
      }
  
      public void recordRequestLatency(long responseLatencyMs) {
          this.commitSensor.record(responseLatencyMs);
      }
  }
  