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.cassandra.service.accord;
  
  import java.util.function.Function;
  
  import com.codahale.metrics.Meter;
  import org.apache.cassandra.metrics.AccordClientRequestMetrics;
  import org.apache.cassandra.metrics.ClientRequestMetrics;
  
  import static org.apache.cassandra.service.accord.RequestBookkeeping.ThrowsExceptionType.READ;
  import static org.apache.cassandra.service.accord.RequestBookkeeping.ThrowsExceptionType.WRITE;
  
  // TODO (expected): merge with AccordClientRequestMetrics instead
  public class ClientRequestBookkeeping extends RequestBookkeeping
  {
      final AccordClientRequestMetrics metrics;
  
      public ClientRequestBookkeeping(boolean isWrite, AccordClientRequestMetrics metrics)
      {
          super(isWrite ? WRITE : READ);
          this.metrics = metrics;
      }
  
      @Override
      final void markTimeout()
      {
          mark(metrics -> metrics.timeouts);
      }
  
      @Override
      final void markPreempted()
      {
          metrics.preempted.mark();
      }
  
      final void markFailure()
      {
          mark(metrics -> metrics.failures);
      }
  
      @Override
      final void markRetryDifferentSystem()
      {
          metrics.retryDifferentSystem.mark();
      }
  
      @Override
      final void markTopologyMismatch()
      {
          metrics.topologyMismatches.mark();
      }
  
      private void mark(Function<ClientRequestMetrics, Meter> get)
      {
          get.apply(metrics).mark();
          if (metrics.shared != null)
              get.apply(metrics.shared).mark();
      }
  
      public final void markElapsedNanos(long nanos)
      {
          metrics.addNano(nanos);
          if (metrics.shared != null)
              metrics.shared.addNano(nanos);
      }
  }
  