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.camel.component.micrometer.routepolicy;
  
  import io.micrometer.core.instrument.MeterRegistry;
  import org.apache.camel.CamelContext;
  import org.apache.camel.Exchange;
  import org.apache.camel.spi.UnitOfWork;
  
  final class ContextMetricsStatistics extends MicrometerRoutePolicy.MetricsStatistics {
  
      private final boolean registerKamelets;
      private final boolean registerTemplates;
  
      ContextMetricsStatistics(MeterRegistry meterRegistry, CamelContext camelContext,
                               MicrometerRoutePolicyNamingStrategy namingStrategy,
                               MicrometerRoutePolicyConfiguration configuration, boolean registerKamelets,
                               boolean registerTemplates) {
          super(meterRegistry, camelContext, null, namingStrategy, configuration);
          this.registerKamelets = registerKamelets;
          this.registerTemplates = registerTemplates;
      }
  
      @Override
      public void onExchangeBegin(Exchange exchange) {
          // this metric is triggered for every route
          // so we must only trigger on the root level, otherwise this metric
          // total counter will be incorrect. For example if an exchange is routed via 3 routes
          // we should only count this as 1 instead of 3.
          UnitOfWork uow = exchange.getUnitOfWork();
          if (uow != null) {
              int level = uow.routeStackLevel(registerTemplates, registerKamelets);
              if (level <= 1) {
                  super.onExchangeBegin(exchange);
              }
          } else {
              super.onExchangeBegin(exchange);
          }
      }
  
      @Override
      public void onExchangeDone(Exchange exchange) {
          // this metric is triggered for every route
          // so we must only trigger on the root level, otherwise this metric
          // total counter will be incorrect. For example if an exchange is routed via 3 routes
          // we should only count this as 1 instead of 3.
          UnitOfWork uow = exchange.getUnitOfWork();
          if (uow != null) {
              int level = uow.routeStackLevel(registerTemplates, registerKamelets);
              if (level <= 1) {
                  super.onExchangeDone(exchange);
              }
          } else {
              super.onExchangeDone(exchange);
          }
      }
  }
  