`@KafkaListener`-Version des `spring-consumer` mit Business-Logik

[demos/kafka/training] / src / main / java / de / juplo / kafka / Application.java

diff --git a/src/main/java/de/juplo/kafka/Application.java b/src/main/java/de/juplo/kafka/Application.java
index 04dc343..273cee5 100644 (file)
--- a/src/main/java/de/juplo/kafka/Application.java
+++ b/src/main/java/de/juplo/kafka/Application.java
@@ -1,64 +1,14 @@
 package de.juplo.kafka;
 
-import lombok.extern.slf4j.Slf4j;
-import org.apache.kafka.clients.consumer.Consumer;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.ApplicationArguments;
-import org.springframework.boot.ApplicationRunner;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.context.ConfigurableApplicationContext;
-import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
-import org.springframework.util.concurrent.ListenableFuture;
-
-import javax.annotation.PreDestroy;
-import java.util.concurrent.ExecutionException;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
 
 
 @SpringBootApplication
-@Slf4j
-public class Application implements ApplicationRunner
+@EnableConfigurationProperties(ApplicationProperties.class)
+public class Application
 {
-  @Autowired
-  ThreadPoolTaskExecutor taskExecutor;
-  @Autowired
-  Consumer<?, ?> kafkaConsumer;
-  @Autowired
-  SimpleConsumer simpleConsumer;
-  @Autowired
-  ConfigurableApplicationContext context;
-
-  ListenableFuture<Integer> consumerJob;
-
-  @Override
-  public void run(ApplicationArguments args) throws Exception
-  {
-    log.info("Starting SimpleConsumer");
-    consumerJob = taskExecutor.submitListenable(simpleConsumer);
-    consumerJob.addCallback(
-      exitStatus ->
-      {
-        log.info("SimpleConsumer exited normally, exit-status: {}", exitStatus);
-        SpringApplication.exit(context, () -> exitStatus);
-        },
-      t ->
-      {
-        log.error("SimpleConsumer exited abnormally!", t);
-        SpringApplication.exit(context, () -> 2);
-      });
-  }
-
-  @PreDestroy
-  public void shutdown() throws ExecutionException, InterruptedException
-  {
-    log.info("Signaling SimpleConsumer to quit its work");
-    kafkaConsumer.wakeup();
-    log.info("Waiting for SimpleConsumer to finish its work");
-    consumerJob.get();
-    log.info("SimpleConsumer finished its work");
-  }
-
-
   public static void main(String[] args)
   {
     SpringApplication.run(Application.class, args);