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 org.apache.kafka.common.config.ConfigResource;
  
  import java.util.Collection;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.concurrent.ExecutionException;
  
  /**
   * The result of the {@link KafkaAdminClient#describeConfigs(Collection)} call.
   */
  public class DescribeConfigsResult {
  
      private final Map<ConfigResource, KafkaFuture<Config>> futures;
  
      protected DescribeConfigsResult(Map<ConfigResource, KafkaFuture<Config>> futures) {
          this.futures = futures;
      }
  
      /**
       * Return a map from resources to futures which can be used to check the status of the configuration for each
       * resource.
       */
      public Map<ConfigResource, KafkaFuture<Config>> values() {
          return futures;
      }
  
      /**
       * Return a future which succeeds only if all the config descriptions succeed.
       */
      public KafkaFuture<Map<ConfigResource, Config>> all() {
          return KafkaFuture.allOf(futures.values().toArray(new KafkaFuture<?>[0])).
                  thenApply(v -> {
                      Map<ConfigResource, Config> configs = new HashMap<>(futures.size());
                      for (Map.Entry<ConfigResource, KafkaFuture<Config>> entry : futures.entrySet()) {
                          try {
                              configs.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 configs;
                  });
      }
  }
  