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.clients.admin;
  
  import org.apache.kafka.common.KafkaFuture;
  
  import java.util.Collection;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.concurrent.ExecutionException;
  
  /**
   * The result of the {@link Admin#describeLogDirs(Collection)} call.
   */
  public class DescribeLogDirsResult {
      private final Map<Integer, KafkaFuture<Map<String, LogDirDescription>>> futures;
  
      DescribeLogDirsResult(Map<Integer, KafkaFuture<Map<String, LogDirDescription>>> futures) {
          this.futures = futures;
      }
  
      /**
       * Return a map from brokerId to future which can be used to check the information of partitions on each individual broker.
       * The result of the future is a map from broker log directory path to a description of that log directory.
       */
      public Map<Integer, KafkaFuture<Map<String, LogDirDescription>>> descriptions() {
          return futures;
      }
  
      /**
       * Return a future which succeeds only if all the brokers have responded without error.
       * The result of the future is a map from brokerId to a map from broker log directory path
       * to a description of that log directory.
       */
      public KafkaFuture<Map<Integer, Map<String, LogDirDescription>>> allDescriptions() {
          return KafkaFuture.allOf(futures.values().toArray(new KafkaFuture<?>[0])).
              thenApply(v -> {
                  Map<Integer, Map<String, LogDirDescription>> descriptions = new HashMap<>(futures.size());
                  for (Map.Entry<Integer, KafkaFuture<Map<String, LogDirDescription>>> entry : futures.entrySet()) {
                      try {
                          descriptions.put(entry.getKey(), entry.getValue().get());
                      } catch (InterruptedException | ExecutionException e) {
                          // This should be unreachable, because allOf ensured that all the futures completed successfully.
                          throw new RuntimeException(e);
                      }
                  }
                  return descriptions;
              });
      }
  }
  