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.message.WriteTxnMarkersResponseData;
  import org.apache.kafka.common.message.WriteTxnMarkersResponseData.WritableTxnMarkerPartitionResult;
  import org.apache.kafka.common.message.WriteTxnMarkersResponseData.WritableTxnMarkerResult;
  import org.apache.kafka.common.message.WriteTxnMarkersResponseData.WritableTxnMarkerTopicResult;
  import org.apache.kafka.common.protocol.ApiKeys;
  import org.apache.kafka.common.protocol.Errors;
  import org.apache.kafka.common.protocol.Readable;
  
  import java.util.ArrayList;
  import java.util.EnumMap;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  /**
   * Possible error codes:
   *
   *   - {@link Errors#CORRUPT_MESSAGE}
   *   - {@link Errors#INVALID_PRODUCER_EPOCH}
   *   - {@link Errors#UNKNOWN_TOPIC_OR_PARTITION}
   *   - {@link Errors#NOT_LEADER_OR_FOLLOWER}
   *   - {@link Errors#MESSAGE_TOO_LARGE}
   *   - {@link Errors#RECORD_LIST_TOO_LARGE}
   *   - {@link Errors#NOT_ENOUGH_REPLICAS}
   *   - {@link Errors#NOT_ENOUGH_REPLICAS_AFTER_APPEND}
   *   - {@link Errors#INVALID_REQUIRED_ACKS}
   *   - {@link Errors#TRANSACTION_COORDINATOR_FENCED}
   *   - {@link Errors#REQUEST_TIMED_OUT}
   *   - {@link Errors#CLUSTER_AUTHORIZATION_FAILED}
   */
  public class WriteTxnMarkersResponse extends AbstractResponse {
  
      private final WriteTxnMarkersResponseData data;
  
      public WriteTxnMarkersResponse(Map<Long, Map<TopicPartition, Errors>> errors) {
          super(ApiKeys.WRITE_TXN_MARKERS);
          List<WritableTxnMarkerResult> markers = new ArrayList<>();
          for (Map.Entry<Long, Map<TopicPartition, Errors>> markerEntry : errors.entrySet()) {
              Map<String, WritableTxnMarkerTopicResult> responseTopicDataMap = new HashMap<>();
              for (Map.Entry<TopicPartition, Errors> topicEntry : markerEntry.getValue().entrySet()) {
                  TopicPartition topicPartition = topicEntry.getKey();
                  String topicName = topicPartition.topic();
  
                  WritableTxnMarkerTopicResult topic =
                      responseTopicDataMap.getOrDefault(topicName, new WritableTxnMarkerTopicResult().setName(topicName));
                  topic.partitions().add(new WritableTxnMarkerPartitionResult()
                                             .setErrorCode(topicEntry.getValue().code())
                                             .setPartitionIndex(topicPartition.partition())
                  );
                  responseTopicDataMap.put(topicName, topic);
              }
  
              markers.add(new WritableTxnMarkerResult()
                              .setProducerId(markerEntry.getKey())
                              .setTopics(new ArrayList<>(responseTopicDataMap.values()))
              );
          }
          this.data = new WriteTxnMarkersResponseData()
                          .setMarkers(markers);
      }
  
      public WriteTxnMarkersResponse(WriteTxnMarkersResponseData data) {
          super(ApiKeys.WRITE_TXN_MARKERS);
          this.data = data;
      }
  
      @Override
      public WriteTxnMarkersResponseData data() {
          return data;
      }
  
      public Map<Long, Map<TopicPartition, Errors>> errorsByProducerId() {
          Map<Long, Map<TopicPartition, Errors>> errors = new HashMap<>();
          for (WritableTxnMarkerResult marker : data.markers()) {
              Map<TopicPartition, Errors> topicPartitionErrorsMap = new HashMap<>();
              for (WritableTxnMarkerTopicResult topic : marker.topics()) {
                  for (WritableTxnMarkerPartitionResult partitionResult : topic.partitions()) {
                      topicPartitionErrorsMap.put(new TopicPartition(topic.name(), partitionResult.partitionIndex()),
                              Errors.forCode(partitionResult.errorCode()));
                  }
              }
              errors.put(marker.producerId(), topicPartitionErrorsMap);
          }
          return errors;
      }
  
      @Override
      public int throttleTimeMs() {
          return DEFAULT_THROTTLE_TIME;
      }
  
      @Override
      public void maybeSetThrottleTimeMs(int throttleTimeMs) {
          // Not supported by the response schema
      }
  
      @Override
      public Map<Errors, Integer> errorCounts() {
          Map<Errors, Integer> errorCounts = new EnumMap<>(Errors.class);
          for (WritableTxnMarkerResult marker : data.markers()) {
              for (WritableTxnMarkerTopicResult topic : marker.topics()) {
                  for (WritableTxnMarkerPartitionResult partitionResult : topic.partitions())
                      updateErrorCounts(errorCounts, Errors.forCode(partitionResult.errorCode()));
              }
          }
          return errorCounts;
      }
  
      public static WriteTxnMarkersResponse parse(Readable readable, short version) {
          return new WriteTxnMarkersResponse(new WriteTxnMarkersResponseData(readable, version));
      }
  }
  