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

   1 package de.juplo.kafka;
   2
   3 import org.springframework.beans.factory.annotation.Autowired;
   4 import org.springframework.boot.SpringApplication;
   5 import org.springframework.boot.autoconfigure.SpringBootApplication;
   6 import org.springframework.boot.context.properties.EnableConfigurationProperties;
   7 import org.springframework.context.annotation.Bean;
   8 import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
   9 import org.springframework.util.Assert;
  10
  11 import java.util.concurrent.Executors;
  12
  13
  14 @SpringBootApplication
  15 @EnableConfigurationProperties(ApplicationProperties.class)
  16 public class Application
  17 {
  18   @Autowired
  19   ApplicationProperties properties;
  20
  21
  22   @Bean
  23   public EndlessConsumer consumer()
  24   {
  25     Assert.hasText(properties.getBootstrapServer(), "consumer.bootstrap-server must be set");
  26     Assert.hasText(properties.getGroupId(), "consumer.group-id must be set");
  27     Assert.hasText(properties.getClientId(), "consumer.client-id must be set");
  28     Assert.hasText(properties.getTopic(), "consumer.topic must be set");
  29
  30     EndlessConsumer consumer =
  31         new EndlessConsumer(
  32             Executors.newFixedThreadPool(1),
  33             properties.getBootstrapServer(),
  34             properties.getGroupId(),
  35             properties.getClientId(),
  36             properties.getTopic(),
  37             properties.getAutoOffsetReset());
  38
  39     consumer.start();
  40
  41     return consumer;
  42   }
  43
  44   @Bean
  45   public Jackson2ObjectMapperBuilder jackson2ObjectMapperBuilder()
  46   {
  47     return
  48         new Jackson2ObjectMapperBuilder().serializers(
  49             new TopicPartitionSerializer(),
  50             new PartitionStatisticsSerializer());
  51   }
  52
  53
  54   public static void main(String[] args)
  55   {
  56     SpringApplication.run(Application.class, args);
  57   }
  58 }