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;
  
  /**
   * Strategy to decide when a Kafka exception was thrown during polling, how to handle this. For example by re-connecting
   * and polling the same message again, by stopping the consumer (allows to re-balance and let another consumer try), or
   * to let Camel route the message as an exception which allows Camel error handling to handle the exception, or to
   * discard this message and poll the next message.
   */
  public interface PollExceptionStrategy {
  
      /**
       * Reset any error flags set by a previous error condition
       */
      default void reset() {
  
      }
  
      /**
       * This method provides an "answer" to whether the consumer can continue polling or not. This is specific to each
       * polling exception strategy and must be implemented accordingly
       *
       * @return true if polling should continue or false otherwise
       */
      boolean canContinue();
  
      /**
       * Controls how to handle the exception while polling from Kafka.
       *
       * @param  exception the caused exception which typically would be a {@link org.apache.kafka.common.KafkaException}
       * @return           how to handle the exception
       */
      void handle(long partitionLastOffset, Exception exception);
  }
  