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

   1 package de.juplo.kafka;
   2
   3 import lombok.extern.slf4j.Slf4j;
   4 import org.apache.kafka.clients.consumer.Consumer;
   5 import org.springframework.beans.factory.annotation.Autowired;
   6 import org.springframework.boot.ApplicationArguments;
   7 import org.springframework.boot.ApplicationRunner;
   8 import org.springframework.boot.SpringApplication;
   9 import org.springframework.boot.autoconfigure.SpringBootApplication;
  10
  11 import javax.annotation.PreDestroy;
  12 import java.util.concurrent.ExecutionException;
  13 import java.util.concurrent.Executor;
  14 import java.util.concurrent.Future;
  15
  16
  17 @SpringBootApplication
  18 @Slf4j
  19 public class Application implements ApplicationRunner
  20 {
  21   @Autowired
  22   Executor executor;
  23   @Autowired
  24   Consumer<?, ?> kafkaConsumer;
  25   @Autowired
  26   SimpleConsumer simpleConsumer;
  27
  28   @Override
  29   public void run(ApplicationArguments args) throws Exception
  30   {
  31     log.info("Starting SimpleConsumer");
  32     executor.execute(simpleConsumer);
  33   }
  34
  35   @PreDestroy
  36   public void shutdown() throws ExecutionException, InterruptedException
  37   {
  38     log.info("Signaling SimpleConsumer to quit its work");
  39     kafkaConsumer.wakeup();
  40   }
  41
  42
  43   public static void main(String[] args)
  44   {
  45     SpringApplication.run(Application.class, args);
  46   }
  47 }