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.Node;
  import org.apache.kafka.common.acl.AclOperation;
  
  import java.util.Collection;
  import java.util.Set;
  
  /**
   * The result of the {@link KafkaAdminClient#describeCluster()} call.
   */
  public class DescribeClusterResult {
      private final KafkaFuture<Collection<Node>> nodes;
      private final KafkaFuture<Node> controller;
      private final KafkaFuture<String> clusterId;
      private final KafkaFuture<Set<AclOperation>> authorizedOperations;
  
      DescribeClusterResult(KafkaFuture<Collection<Node>> nodes,
                            KafkaFuture<Node> controller,
                            KafkaFuture<String> clusterId,
                            KafkaFuture<Set<AclOperation>> authorizedOperations) {
          this.nodes = nodes;
          this.controller = controller;
          this.clusterId = clusterId;
          this.authorizedOperations = authorizedOperations;
      }
  
      /**
       * Returns a future which yields a collection of nodes.
       */
      public KafkaFuture<Collection<Node>> nodes() {
          return nodes;
      }
  
      /**
       * Returns a future which yields the current controller node.
       * <p>
       * When using {@link AdminClientConfig#BOOTSTRAP_SERVERS_CONFIG}, the controller refer to a random broker.
       * When using {@link AdminClientConfig#BOOTSTRAP_CONTROLLERS_CONFIG}, it refers to the current voter leader.
       */
      public KafkaFuture<Node> controller() {
          return controller;
      }
  
      /**
       * Returns a future which yields the current cluster id.
       */
      public KafkaFuture<String> clusterId() {
          return clusterId;
      }
  
      /**
       * Returns a future which yields authorized operations.  The future value will be non-null if the
       * broker supplied this information, and null otherwise.
       */
      public KafkaFuture<Set<AclOperation>> authorizedOperations() {
          return authorizedOperations;
      }
  }
  