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.Map;
  import java.util.Set;
  
  /**
   * The result of the {@link Admin#listTopics()} call.
   */
  public class ListTopicsResult {
      final KafkaFuture<Map<String, TopicListing>> future;
  
      ListTopicsResult(KafkaFuture<Map<String, TopicListing>> future) {
          this.future = future;
      }
  
      /**
       * Return a future which yields a map of topic names to TopicListing objects.
       */
      public KafkaFuture<Map<String, TopicListing>> namesToListings() {
          return future;
      }
  
      /**
       * Return a future which yields a collection of TopicListing objects.
       */
      public KafkaFuture<Collection<TopicListing>> listings() {
          return future.thenApply(Map::values);
      }
  
      /**
       * Return a future which yields a collection of topic names.
       */
      public KafkaFuture<Set<String>> names() {
          return future.thenApply(Map::keySet);
      }
  }
  