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.camel.component.kafka.consumer;
  
  import org.apache.camel.component.kafka.KafkaConsumer;
  import org.apache.camel.spi.StateRepository;
  import org.apache.kafka.clients.consumer.Consumer;
  import org.apache.kafka.common.TopicPartition;
  
  public class CommitToOffsetManager extends AbstractCommitManager {
      private final OffsetCache offsetCache = new OffsetCache();
      private final StateRepository<String, String> offsetRepository;
  
      public CommitToOffsetManager(Consumer<?, ?> consumer, KafkaConsumer kafkaConsumer, String threadId, String printableTopic) {
          super(consumer, kafkaConsumer, threadId, printableTopic);
  
          offsetRepository = configuration.getOffsetRepository();
      }
  
      @Override
      public void commit(TopicPartition partition) {
          Long offset = offsetCache.getOffset(partition);
          if (offset == null) {
              return;
          }
  
          saveStateToOffsetRepository(partition, offset, offsetRepository);
      }
  
      @Override
      public void forceCommit(TopicPartition partition, long partitionLastOffset) {
          saveStateToOffsetRepository(partition, partitionLastOffset, offsetRepository);
      }
  
      @Override
      public void commit() {
          // NO-OP ... commits to offset only
      }
  
      @Override
      public void recordOffset(TopicPartition partition, long partitionLastOffset) {
          if (partitionLastOffset == START_OFFSET) {
              return;
          }
  
          offsetCache.recordOffset(partition, partitionLastOffset);
      }
  }
  