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.support.classic;
  
  import org.apache.camel.component.kafka.SeekPolicy;
  import org.apache.kafka.clients.consumer.Consumer;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * A resume strategy that uses Camel's seekTo configuration for resuming
   */
  public class SeekPolicyPartitionAssignmentAdapter implements PartitionAssignmentAdapter {
  
      private static final Logger LOG = LoggerFactory.getLogger(SeekPolicyPartitionAssignmentAdapter.class);
  
      private final SeekPolicy seekPolicy;
      private Consumer<?, ?> consumer;
  
      public SeekPolicyPartitionAssignmentAdapter(SeekPolicy seekPolicy) {
          this.seekPolicy = seekPolicy;
      }
  
      @Override
      public void setConsumer(Consumer<?, ?> consumer) {
          this.consumer = consumer;
      }
  
      @Override
      public void handlePartitionAssignment() {
          if (seekPolicy == SeekPolicy.BEGINNING) {
              LOG.debug("Seeking from the beginning of topic");
              consumer.seekToBeginning(consumer.assignment());
          } else if (seekPolicy == SeekPolicy.END) {
              LOG.debug("Seeking from the end off the topic");
              consumer.seekToEnd(consumer.assignment());
          }
      }
  }
  