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.Consumer;
   4 import org.springframework.boot.autoconfigure.kafka.KafkaProperties;
   5 import org.springframework.boot.context.properties.EnableConfigurationProperties;
   6 import org.springframework.context.annotation.Bean;
   7 import org.springframework.context.annotation.Configuration;
   8
   9 import org.springframework.kafka.core.ConsumerFactory;
  10
  11 import java.util.concurrent.ExecutorService;
  12 import java.util.concurrent.Executors;
  13
  14
  15 @Configuration
  16 @EnableConfigurationProperties({ KafkaProperties.class, ApplicationProperties.class })
  17 public class ApplicationConfiguration
  18 {
  19   @Bean
  20   public SimpleConsumer endlessConsumer(
  21       Consumer<String, Message> kafkaConsumer,
  22       ExecutorService executor,
  23       KafkaProperties kafkaProperties,
  24       ApplicationProperties applicationProperties)
  25   {
  26     return
  27         new SimpleConsumer(
  28             executor,
  29             kafkaProperties.getClientId(),
  30             applicationProperties.getTopic(),
  31             kafkaConsumer);
  32   }
  33
  34   @Bean
  35   public ExecutorService executor()
  36   {
  37     return Executors.newSingleThreadExecutor();
  38   }
  39
  40   @Bean(destroyMethod = "close")
  41   public Consumer<String, Message> kafkaConsumer(ConsumerFactory<String, Message> factory)
  42   {
  43     return factory.createConsumer();
  44   }
  45 }