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;
  
  import org.apache.kafka.common.metrics.Metrics;
  import org.apache.kafka.common.metrics.Sensor;
  import org.apache.kafka.common.metrics.stats.WindowedCount;
  
  public class ShareFetchMetricsManager {
      private final Metrics metrics;
      private final Sensor throttleTime;
      private final Sensor bytesFetched;
      private final Sensor recordsFetched;
      private final Sensor fetchLatency;
      private final Sensor sentAcknowledgements;
      private final Sensor failedAcknowledgements;
  
      public ShareFetchMetricsManager(Metrics metrics, ShareFetchMetricsRegistry metricsRegistry) {
          this.metrics = metrics;
  
          this.bytesFetched = new SensorBuilder(metrics, "bytes-fetched")
                  .withAvg(metricsRegistry.fetchSizeAvg)
                  .withMax(metricsRegistry.fetchSizeMax)
                  .withMeter(metricsRegistry.bytesFetchedRate, metricsRegistry.bytesFetchedTotal)
                  .build();
          this.recordsFetched = new SensorBuilder(metrics, "records-fetched")
                  .withAvg(metricsRegistry.recordsPerRequestAvg)
                  .withMax(metricsRegistry.recordsPerRequestMax)
                  .withMeter(metricsRegistry.recordsFetchedRate, metricsRegistry.recordsFetchedTotal)
                  .build();
  
          this.sentAcknowledgements = new SensorBuilder(metrics, "sent-acknowledgements")
                  .withMeter(metricsRegistry.acknowledgementSendRate, metricsRegistry.acknowledgementSendTotal)
                  .build();
  
          this.failedAcknowledgements = new SensorBuilder(metrics, "failed-acknowledgements")
                  .withMeter(metricsRegistry.acknowledgementErrorRate, metricsRegistry.acknowledgementErrorTotal)
                  .build();
  
          this.fetchLatency = new SensorBuilder(metrics, "fetch-latency")
                  .withAvg(metricsRegistry.fetchLatencyAvg)
                  .withMax(metricsRegistry.fetchLatencyMax)
                  .withMeter(new WindowedCount(), metricsRegistry.fetchRequestRate, metricsRegistry.fetchRequestTotal)
                  .build();
  
          this.throttleTime = new SensorBuilder(metrics, "fetch-throttle-time")
                  .withAvg(metricsRegistry.fetchThrottleTimeAvg)
                  .withMax(metricsRegistry.fetchThrottleTimeMax)
                  .build();
      }
  
      public Sensor throttleTimeSensor() {
          return throttleTime;
      }
  
      void recordLatency(String node, long requestLatencyMs) {
          fetchLatency.record(requestLatencyMs);
          if (!node.isEmpty()) {
              String nodeTimeName = "node-" + node + ".latency";
              Sensor nodeRequestTime = metrics.getSensor(nodeTimeName);
              if (nodeRequestTime != null)
                  nodeRequestTime.record(requestLatencyMs);
          }
      }
  
      void recordBytesFetched(int bytes) {
          bytesFetched.record(bytes);
      }
  
      void recordRecordsFetched(int records) {
          recordsFetched.record(records);
      }
  
      void recordAcknowledgementSent(int acknowledgements) {
          sentAcknowledgements.record(acknowledgements);
      }
  
      void recordFailedAcknowledgements(int acknowledgements) {
          failedAcknowledgements.record(acknowledgements);
      }
  }
  