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.coordinator.common.runtime;
  
  import org.apache.kafka.common.TopicPartition;
  
  /**
   * A CoordinatorMetricsShard is mapped to a single CoordinatorShard. The metrics shard records sensors that have been
   * defined in {@link CoordinatorMetrics}. Coordinator specific gauges and related methods are exposed in the
   * implementation of CoordinatorMetricsShard (i.e. {@link GroupCoordinatorMetricsShard}).
   *
   * For sensors, each shard individually records the observed values.
   */
  public interface CoordinatorMetricsShard {
      /**
       * Increment the value of a sensor.
       *
       * @param sensorName the sensor name.
       */
      void record(String sensorName);
  
      /**
       * Record a sensor with a value.
       *
       * @param sensorName the sensor name.
       * @param val the value to record.
       */
      void record(String sensorName, double val);
  
      /**
       * @return The topic partition.
       */
      TopicPartition topicPartition();
  
      /**
       * Commits all gauges backed by the snapshot registry.
       *
       * @param offset The last committed offset.
       */
      void commitUpTo(long offset);
  }
  