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.consumer;
  
  import org.apache.kafka.common.KafkaException;
  import org.apache.kafka.common.TopicIdPartition;
  import org.apache.kafka.common.annotation.InterfaceStability;
  import org.apache.kafka.common.errors.AuthorizationException;
  import org.apache.kafka.common.errors.DisconnectException;
  import org.apache.kafka.common.errors.InterruptException;
  import org.apache.kafka.common.errors.InvalidRecordStateException;
  import org.apache.kafka.common.errors.NotLeaderOrFollowerException;
  import org.apache.kafka.common.errors.WakeupException;
  
  import java.util.Map;
  import java.util.Set;
  
  /**
   * A callback interface that the user can implement to trigger custom actions when an acknowledgement completes.
   * The callback may be executed in any thread calling {@link ShareConsumer#poll(java.time.Duration)}.
   */
  @InterfaceStability.Evolving
  public interface AcknowledgementCommitCallback {
  
      /**
       * A callback method the user can implement to provide asynchronous handling of acknowledgement completion.
       * This method will be called when the acknowledgement request sent to the server has been completed.
       *
       * @param offsets A map of the offsets that this callback applies to.
       *
       * @param exception The exception thrown during processing of the request, or null if the acknowledgement completed successfully.
       * <p><ul>
       * <li> {@link AuthorizationException} if not authorized to the topic or group
       * <li> {@link InvalidRecordStateException} if the record state is invalid
       * <li> {@link NotLeaderOrFollowerException} if the leader had changed by the time the acknowledgements were sent
       * <li> {@link DisconnectException} if the broker disconnected before the request could be completed
       * <li> {@link WakeupException} if {@link KafkaShareConsumer#wakeup()} is called before or while this function is called
       * <li> {@link InterruptException} if the calling thread is interrupted before or while this function is called
       * <li> {@link KafkaException} for any other unrecoverable errors
       * </ul>
       * <p>Note that even if the exception is a retriable exception, the acknowledgement could not be completed and the
       * records need to be fetched again. The callback is called after any retries have been performed.
       */
      void onComplete(Map<TopicIdPartition, Set<Long>> offsets, Exception exception);
  }
  