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.common.requests;
  
  import org.apache.kafka.common.TopicPartition;
  import org.apache.kafka.common.Uuid;
  import org.apache.kafka.common.message.EndQuorumEpochRequestData;
  import org.apache.kafka.common.message.EndQuorumEpochResponseData;
  import org.apache.kafka.common.protocol.ApiKeys;
  import org.apache.kafka.common.protocol.Errors;
  import org.apache.kafka.common.protocol.Readable;
  
  import java.util.Collections;
  import java.util.List;
  import java.util.stream.Collectors;
  
  public class EndQuorumEpochRequest extends AbstractRequest {
      public static class Builder extends AbstractRequest.Builder<EndQuorumEpochRequest> {
          private final EndQuorumEpochRequestData data;
  
          public Builder(EndQuorumEpochRequestData data) {
              super(ApiKeys.END_QUORUM_EPOCH);
              this.data = data;
          }
  
          @Override
          public EndQuorumEpochRequest build(short version) {
              return new EndQuorumEpochRequest(data, version);
          }
  
          @Override
          public String toString() {
              return data.toString();
          }
      }
  
      private final EndQuorumEpochRequestData data;
  
      private EndQuorumEpochRequest(EndQuorumEpochRequestData data, short version) {
          super(ApiKeys.END_QUORUM_EPOCH, version);
          this.data = data;
      }
  
      @Override
      public EndQuorumEpochRequestData data() {
          return data;
      }
  
      @Override
      public EndQuorumEpochResponse getErrorResponse(int throttleTimeMs, Throwable e) {
          return new EndQuorumEpochResponse(new EndQuorumEpochResponseData()
              .setErrorCode(Errors.forException(e).code()));
      }
  
      public static EndQuorumEpochRequest parse(Readable readable, short version) {
          return new EndQuorumEpochRequest(new EndQuorumEpochRequestData(readable, version), version);
      }
  
      public static EndQuorumEpochRequestData singletonRequest(TopicPartition topicPartition,
                                                               int leaderEpoch,
                                                               int leaderId,
                                                               List<Integer> preferredSuccessors) {
          return singletonRequest(topicPartition, null, leaderEpoch, leaderId, preferredSuccessors);
      }
  
      public static EndQuorumEpochRequestData singletonRequest(TopicPartition topicPartition,
                                                               String clusterId,
                                                               int leaderEpoch,
                                                               int leaderId,
                                                               List<Integer> preferredSuccessors) {
          return new EndQuorumEpochRequestData()
                     .setClusterId(clusterId)
                     .setTopics(Collections.singletonList(
                         new EndQuorumEpochRequestData.TopicData()
                             .setTopicName(topicPartition.topic())
                             .setPartitions(Collections.singletonList(
                                 new EndQuorumEpochRequestData.PartitionData()
                                     .setPartitionIndex(topicPartition.partition())
                                     .setLeaderEpoch(leaderEpoch)
                                     .setLeaderId(leaderId)
                                     .setPreferredSuccessors(preferredSuccessors))))
                     );
      }
  
      public static List<EndQuorumEpochRequestData.ReplicaInfo> preferredCandidates(EndQuorumEpochRequestData.PartitionData partition) {
          if (partition.preferredCandidates().isEmpty()) {
              return partition
                  .preferredSuccessors()
                  .stream()
                  .map(id -> new EndQuorumEpochRequestData.ReplicaInfo()
                      .setCandidateId(id)
                      .setCandidateDirectoryId(Uuid.ZERO_UUID)
                  )
                  .collect(Collectors.toList());
          } else {
              return partition.preferredCandidates();
          }
      }
  }
  