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.bookkeeper.stats.otel;
  
  import io.opentelemetry.api.common.Attributes;
  import io.opentelemetry.api.metrics.DoubleHistogram;
  import io.opentelemetry.api.metrics.Meter;
  import java.util.concurrent.TimeUnit;
  import org.apache.bookkeeper.stats.OpStatsData;
  import org.apache.bookkeeper.stats.OpStatsLogger;
  
  class OtelOpStatsLogger implements OpStatsLogger {
  
      private final DoubleHistogram histo;
      private final Attributes successAttributes;
      private final Attributes failureAttributes;
  
      OtelOpStatsLogger(Meter meter, ScopeContext sc) {
          this.histo = meter.histogramBuilder(sc.getName()).build();
          this.successAttributes = Attributes.builder().putAll(sc.getAttributes()).put("success", "true").build();
          this.failureAttributes = Attributes.builder().putAll(sc.getAttributes()).put("success", "false").build();
      }
  
      @Override
      public void registerFailedEvent(long eventLatency, TimeUnit unit) {
          double valueMillis = unit.toMicros(eventLatency) / 1000.0;
          histo.record(valueMillis, failureAttributes);
      }
  
      @Override
      public void registerSuccessfulEvent(long eventLatency, TimeUnit unit) {
          double valueMillis = unit.toMicros(eventLatency) / 1000.0;
          histo.record(valueMillis, successAttributes);
      }
  
      @Override
      public void registerSuccessfulValue(long value) {
          histo.record(value, successAttributes);
      }
  
      @Override
      public void registerFailedValue(long value) {
          histo.record(value, failureAttributes);
      }
  
      @Override
      public OpStatsData toOpStatsData() {
          throw new UnsupportedOperationException();
      }
  
      @Override
      public void clear() {
          throw new UnsupportedOperationException();
      }
  }
  