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.network.metrics;
  
  import org.apache.kafka.common.message.ApiMessageType;
  import org.apache.kafka.common.protocol.ApiKeys;
  
  import java.util.Arrays;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.NoSuchElementException;
  import java.util.Set;
  
  public class RequestChannelMetrics {
  
      private final Map<String, RequestMetrics> metricsMap;
  
      public RequestChannelMetrics(Set<ApiKeys> enabledApis) {
          metricsMap = new HashMap<>();
          for (ApiKeys apiKey : enabledApis) {
              metricsMap.put(apiKey.name, new RequestMetrics(apiKey.name));
          }
          for (String name : Arrays.asList(
              RequestMetrics.CONSUMER_FETCH_METRIC_NAME,
              RequestMetrics.FOLLOW_FETCH_METRIC_NAME,
              RequestMetrics.VERIFY_PARTITIONS_IN_TXN_METRIC_NAME,
              RequestMetrics.LIST_CLIENT_METRICS_RESOURCES_METRIC_NAME
          )) {
              metricsMap.put(name, new RequestMetrics(name));
          }
      }
  
      public RequestChannelMetrics(ApiMessageType.ListenerType scope) {
          this(ApiKeys.apisForListener(scope));
      }
  
      public RequestMetrics apply(String metricName) {
          RequestMetrics requestMetrics = metricsMap.get(metricName);
          if (requestMetrics == null) {
              throw new NoSuchElementException("No RequestMetrics for " + metricName);
          }
          return requestMetrics;
      }
  
      public void close() {
          for (RequestMetrics requestMetrics : metricsMap.values()) {
              requestMetrics.removeMetrics();
          }
      }
  }
  