From ff0bddc11472768fb63c93f178c1a7b235f13019 Mon Sep 17 00:00:00 2001
From: Kai Moritz <kai@juplo.de>
Date: Fri, 4 Nov 2022 11:01:21 +0100
Subject: [PATCH] WIP:TaskExecutor-NEU

---
 src/main/java/de/juplo/kafka/Application.java         | 11 ++++++++---
 .../java/de/juplo/kafka/ApplicationConfiguration.java |  3 +++
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/src/main/java/de/juplo/kafka/Application.java b/src/main/java/de/juplo/kafka/Application.java
index a9b466d..705f52f 100644
--- a/src/main/java/de/juplo/kafka/Application.java
+++ b/src/main/java/de/juplo/kafka/Application.java
@@ -10,7 +10,7 @@ import org.springframework.boot.autoconfigure.SpringBootApplication;
 
 import javax.annotation.PreDestroy;
 import java.util.concurrent.ExecutionException;
-import java.util.concurrent.Executor;
+import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Future;
 
 
@@ -19,17 +19,19 @@ import java.util.concurrent.Future;
 public class Application implements ApplicationRunner
 {
   @Autowired
-  Executor executor;
+  ExecutorService executorService;
   @Autowired
   Consumer<?, ?> kafkaConsumer;
   @Autowired
   SimpleConsumer simpleConsumer;
 
+  Future<?> consumerJob;
+
   @Override
   public void run(ApplicationArguments args) throws Exception
   {
     log.info("Starting SimpleConsumer");
-    executor.execute(simpleConsumer);
+    consumerJob = executorService.submit(simpleConsumer);
   }
 
   @PreDestroy
@@ -37,6 +39,9 @@ public class Application implements ApplicationRunner
   {
     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");
   }
 
 
diff --git a/src/main/java/de/juplo/kafka/ApplicationConfiguration.java b/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
index de77c60..16926fd 100644
--- a/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
+++ b/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
@@ -8,6 +8,9 @@ import org.springframework.context.annotation.Configuration;
 
 import org.springframework.kafka.core.ConsumerFactory;
 
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
 
 @Configuration
 @EnableConfigurationProperties({ KafkaProperties.class, ApplicationProperties.class })
-- 
2.20.1