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.image;
  
  import org.apache.kafka.common.TopicIdPartition;
  import org.apache.kafka.common.TopicPartition;
  import org.apache.kafka.common.Uuid;
  import org.apache.kafka.metadata.PartitionRegistration;
  
  import java.util.Map;
  import java.util.Set;
  
  public final class LocalReplicaChanges {
      // partitions for which the broker is not a replica anymore
      private final Set<TopicPartition> deletes;
      // partitions for which the broker is now a leader (leader epoch bump on the leader)
      private final Map<TopicPartition, PartitionInfo> electedLeaders;
      // partitions for which the isr or replicas change if the broker is a leader (partition epoch bump on the leader)
      private final Map<TopicPartition, PartitionInfo> leaders;
      // partitions for which the broker is now a follower or follower with isr or replica updates (partition epoch bump on follower)
      private final Map<TopicPartition, PartitionInfo> followers;
      // The topic name -> topic id map in leaders and followers changes
      private final Map<String, Uuid> topicIds;
      // partitions for which directory id changes or newly added to the broker
      private final Map<TopicIdPartition, Uuid> directoryIds;
  
      LocalReplicaChanges(
          Set<TopicPartition> deletes,
          Map<TopicPartition, PartitionInfo> electedLeaders,
          Map<TopicPartition, PartitionInfo> leaders,
          Map<TopicPartition, PartitionInfo> followers,
          Map<String, Uuid> topicIds,
          Map<TopicIdPartition, Uuid> directoryIds
      ) {
          this.deletes = deletes;
          this.electedLeaders = electedLeaders;
          this.leaders = leaders;
          this.followers = followers;
          this.topicIds = topicIds;
          this.directoryIds = directoryIds;
      }
  
      public Set<TopicPartition> deletes() {
          return deletes;
      }
  
      public Map<TopicPartition, PartitionInfo> electedLeaders() {
          return electedLeaders;
      }
  
      public Map<TopicPartition, PartitionInfo> leaders() {
          return leaders;
      }
  
      public Map<TopicPartition, PartitionInfo> followers() {
          return followers;
      }
  
      public Map<String, Uuid> topicIds() {
          return topicIds;
      }
  
      public Map<TopicIdPartition, Uuid> directoryIds() {
          return directoryIds;
      }
  
      @Override
      public String toString() {
          return String.format(
              "LocalReplicaChanges(deletes = %s, newly elected leaders = %s, leaders = %s, followers = %s, topicIds = %s, directoryIds = %s)",
              deletes,
              electedLeaders,
              leaders,
              followers,
              topicIds,
              directoryIds
          );
      }
  
      public static final class PartitionInfo {
          private final Uuid topicId;
          private final PartitionRegistration partition;
  
          public PartitionInfo(Uuid topicId, PartitionRegistration partition) {
              this.topicId = topicId;
              this.partition = partition;
          }
  
          public Uuid topicId() {
              return topicId;
          }
  
          public PartitionRegistration partition() {
              return partition;
          }
  
          @Override
          public String toString() {
              return String.format("PartitionInfo(topicId = %s, partition = %s)", topicId, partition);
          }
      }
  }
  