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.internals.events;
  
  import org.apache.kafka.clients.consumer.KafkaConsumer;
  import org.apache.kafka.clients.consumer.internals.AsyncKafkaConsumer;
  import org.apache.kafka.clients.consumer.internals.AutoOffsetResetStrategy;
  import org.apache.kafka.common.TopicPartition;
  
  import java.time.Duration;
  import java.util.Collection;
  import java.util.Collections;
  import java.util.Objects;
  
  /**
   * This event indicates that partition offsets should be reset according to the specified strategy. The actual reset of
   * the positions will occur during the next update of fetch positions via {@link KafkaConsumer#poll(Duration)} or
   * {@link KafkaConsumer#position(TopicPartition)}.
   * This mechanism is used to execute {@link AsyncKafkaConsumer#seekToBeginning(Collection)} and {@link AsyncKafkaConsumer#seekToEnd(Collection)}.
   */
  public class ResetOffsetEvent extends CompletableApplicationEvent<Void> {
  
      private final Collection<TopicPartition> topicPartitions;
  
      private final AutoOffsetResetStrategy offsetResetStrategy;
  
      public ResetOffsetEvent(Collection<TopicPartition> topicPartitions, AutoOffsetResetStrategy offsetResetStrategy, long deadline) {
          super(Type.RESET_OFFSET, deadline);
          this.topicPartitions = Collections.unmodifiableCollection(topicPartitions);
          this.offsetResetStrategy = Objects.requireNonNull(offsetResetStrategy);
      }
  
      public Collection<TopicPartition> topicPartitions() {
          return topicPartitions;
      }
  
      public AutoOffsetResetStrategy offsetResetStrategy() {
          return offsetResetStrategy;
      }
  
      @Override
      public String toStringBase() {
          return super.toStringBase() + ", topicPartitions=" + topicPartitions + ", offsetStrategy=" + offsetResetStrategy;
      }
  }
  