From: Kai Moritz <kai@juplo.de>
Date: Fri, 4 Nov 2022 08:45:59 +0000 (+0100)
Subject: WIP:async
X-Git-Url: http://juplo.de/gitweb/?a=commitdiff_plain;ds=sidebyside;h=b059b0e509cca9a16ae209ade49c967a66201de9;p=demos%2Fkafka%2Ftraining

WIP:async
---

diff --git a/src/main/java/de/juplo/kafka/Application.java b/src/main/java/de/juplo/kafka/Application.java
index f37f3d7..513a293 100644
--- a/src/main/java/de/juplo/kafka/Application.java
+++ b/src/main/java/de/juplo/kafka/Application.java
@@ -7,19 +7,18 @@ import org.springframework.boot.ApplicationArguments;
 import org.springframework.boot.ApplicationRunner;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.scheduling.annotation.Async;
+import org.springframework.scheduling.annotation.EnableAsync;
 
 import javax.annotation.PreDestroy;
 import java.util.concurrent.ExecutionException;
-import java.util.concurrent.Executor;
-import java.util.concurrent.Future;
 
 
 @SpringBootApplication
+@EnableAsync
 @Slf4j
 public class Application implements ApplicationRunner
 {
-  @Autowired
-  Executor executor;
   @Autowired
   Consumer<?, ?> consumer;
   @Autowired
@@ -27,13 +26,19 @@ public class Application implements ApplicationRunner
 
   @Override
   public void run(ApplicationArguments args) throws Exception
+  {
+    start();
+  }
+
+  @Async
+  public void start()
   {
     log.info("Starting SimpleConsumer");
-    executor.execute(simpleConsumer);
+    simpleConsumer.run();
   }
 
   @PreDestroy
-  public void shutdown() throws ExecutionException, InterruptedException
+  public void stop() throws ExecutionException, InterruptedException
   {
     log.info("Signaling SimpleConsumer to quit its work");
     consumer.wakeup();
diff --git a/src/main/java/de/juplo/kafka/ApplicationConfiguration.java b/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
index 18ef37d..de77c60 100644
--- a/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
+++ b/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
@@ -7,13 +7,9 @@ import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
 import org.springframework.kafka.core.ConsumerFactory;
-import org.springframework.scheduling.annotation.EnableAsync;
-
-import java.util.concurrent.Executor;
 
 
 @Configuration
-@EnableAsync
 @EnableConfigurationProperties({ KafkaProperties.class, ApplicationProperties.class })
 public class ApplicationConfiguration
 {
diff --git a/src/main/java/de/juplo/kafka/SimpleConsumer.java b/src/main/java/de/juplo/kafka/SimpleConsumer.java
index 53bd112..5305ceb 100644
--- a/src/main/java/de/juplo/kafka/SimpleConsumer.java
+++ b/src/main/java/de/juplo/kafka/SimpleConsumer.java
@@ -13,7 +13,7 @@ import java.util.Arrays;
 
 @Slf4j
 @RequiredArgsConstructor
-public class SimpleConsumer implements Runnable
+public class SimpleConsumer
 {
   private final String id;
   private final String topic;
@@ -22,7 +22,6 @@ public class SimpleConsumer implements Runnable
   private long consumed = 0;
 
 
-  @Override
   public void run()
   {
     try