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.TopicPartitionInfo;
  import org.apache.kafka.common.Uuid;
  import org.apache.kafka.common.acl.AclOperation;
  
  import java.util.Collections;
  import java.util.List;
  import java.util.Objects;
  import java.util.Set;
  import java.util.stream.Collectors;
  
  /**
   * A detailed description of a single topic in the cluster.
   */
  public class TopicDescription {
      private final String name;
      private final boolean internal;
      private final List<TopicPartitionInfo> partitions;
      private final Set<AclOperation> authorizedOperations;
      private final Uuid topicId;
  
      @Override
      public boolean equals(final Object o) {
          if (this == o) return true;
          if (o == null || getClass() != o.getClass()) return false;
          final TopicDescription that = (TopicDescription) o;
          return internal == that.internal &&
              Objects.equals(name, that.name) &&
              Objects.equals(partitions, that.partitions) &&
              Objects.equals(authorizedOperations, that.authorizedOperations);
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(name, internal, partitions, authorizedOperations);
      }
  
      /**
       * Create an instance with the specified parameters.
       *
       * @param name The topic name
       * @param internal Whether the topic is internal to Kafka
       * @param partitions A list of partitions where the index represents the partition id and the element contains
       *                   leadership and replica information for that partition.
       */
      public TopicDescription(String name, boolean internal, List<TopicPartitionInfo> partitions) {
          this(name, internal, partitions, Collections.emptySet());
      }
  
      /**
       * Create an instance with the specified parameters.
       *
       * @param name The topic name
       * @param internal Whether the topic is internal to Kafka
       * @param partitions A list of partitions where the index represents the partition id and the element contains
       *                   leadership and replica information for that partition.
       * @param authorizedOperations authorized operations for this topic, or empty set if this is not known.
       */
      public TopicDescription(String name, boolean internal, List<TopicPartitionInfo> partitions,
                              Set<AclOperation> authorizedOperations) {
          this(name, internal, partitions, authorizedOperations, Uuid.ZERO_UUID);
      }
  
      /**
       * Create an instance with the specified parameters.
       *
       * @param name The topic name
       * @param internal Whether the topic is internal to Kafka
       * @param partitions A list of partitions where the index represents the partition id and the element contains
       *                   leadership and replica information for that partition.
       * @param authorizedOperations authorized operations for this topic, or empty set if this is not known.
       * @param topicId the topic id
       */
      public TopicDescription(String name, boolean internal, List<TopicPartitionInfo> partitions,
                              Set<AclOperation> authorizedOperations, Uuid topicId) {
          this.name = name;
          this.internal = internal;
          this.partitions = partitions;
          this.authorizedOperations = authorizedOperations;
          this.topicId = topicId;
      }
  
      /**
       * The name of the topic.
       */
      public String name() {
          return name;
      }
  
      /**
       * Whether the topic is internal to Kafka. An example of an internal topic is the offsets and group management topic:
       * __consumer_offsets.
       */
      public boolean isInternal() {
          return internal;
      }
  
      public Uuid topicId() {
          return topicId;
      }
  
      /**
       * A list of partitions where the index represents the partition id and the element contains leadership and replica
       * information for that partition.
       */
      public List<TopicPartitionInfo> partitions() {
          return partitions;
      }
  
      /**
       * authorized operations for this topic, or null if this is not known.
       */
      public Set<AclOperation>  authorizedOperations() {
          return authorizedOperations;
      }
  
      @Override
      public String toString() {
          return "(name=" + name + ", internal=" + internal + ", partitions=" +
                  partitions.stream().map(TopicPartitionInfo::toString).collect(Collectors.joining(",")) + ", authorizedOperations=" + authorizedOperations + ")";
      }
  }
  