From 946f603acf5312814000b45e350cae1d91a84b96 Mon Sep 17 00:00:00 2001
From: Kai Moritz <kai@juplo.de>
Date: Fri, 18 Nov 2022 17:18:01 +0100
Subject: [PATCH] Die App beendet sich, wenn der SimpleConsumer stolpert

---
 src/main/java/de/juplo/kafka/Application.java | 20 ++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/src/main/java/de/juplo/kafka/Application.java b/src/main/java/de/juplo/kafka/Application.java
index 3828b1d..04dc343 100644
--- a/src/main/java/de/juplo/kafka/Application.java
+++ b/src/main/java/de/juplo/kafka/Application.java
@@ -7,11 +7,12 @@ 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 java.util.concurrent.Future;
 
 
 @SpringBootApplication
@@ -24,14 +25,27 @@ public class Application implements ApplicationRunner
   Consumer<?, ?> kafkaConsumer;
   @Autowired
   SimpleConsumer simpleConsumer;
+  @Autowired
+  ConfigurableApplicationContext context;
 
-  Future<?> consumerJob;
+  ListenableFuture<Integer> consumerJob;
 
   @Override
   public void run(ApplicationArguments args) throws Exception
   {
     log.info("Starting SimpleConsumer");
-    consumerJob = taskExecutor.submit(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
-- 
2.20.1