juplo.de Git - demos/kafka/training/blob - src/main/java/de/juplo/kafka/ApplicationConfiguration.java

   1 package de.juplo.kafka;
   2
   3 import org.apache.kafka.clients.consumer.ConsumerRecord;
   4 import org.springframework.boot.context.properties.EnableConfigurationProperties;
   5 import org.springframework.context.annotation.Bean;
   6 import org.springframework.context.annotation.Configuration;
   7 import org.springframework.kafka.config.ConcurrentKafkaListenerContainerFactory;
   8 import org.springframework.kafka.config.KafkaListenerContainerFactory;
   9 import org.springframework.kafka.core.ConsumerFactory;
  10 import org.springframework.kafka.listener.CommonContainerStoppingErrorHandler;
  11 import org.springframework.kafka.listener.CommonErrorHandler;
  12
  13 import java.util.function.Consumer;
  14
  15
  16 @Configuration
  17 @EnableConfigurationProperties(ApplicationProperties.class)
  18 public class ApplicationConfiguration
  19 {
  20   @Bean
  21   public Consumer<ConsumerRecord<String, Long>> consumer()
  22   {
  23     return (record) ->
  24     {
  25       // Handle record
  26     };
  27   }
  28
  29   @Bean
  30   public KafkaListenerContainerFactory<?> batchFactory(
  31       ConsumerFactory<String, Long> consumerFactory,
  32       CommonErrorHandler errorHandler)
  33   {
  34     ConcurrentKafkaListenerContainerFactory<String, Long> factory =
  35         new ConcurrentKafkaListenerContainerFactory<>();
  36
  37     factory.setConsumerFactory(consumerFactory);
  38     factory.setCommonErrorHandler(errorHandler);
  39     factory.setBatchListener(true);
  40
  41     return factory;
  42   }
  43
  44   @Bean
  45   public CommonContainerStoppingErrorHandler errorHandler()
  46   {
  47     return new CommonContainerStoppingErrorHandler();
  48   }
  49 }