WIP

[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 bcbf418..b4a960d 100644 (file)
--- a/src/main/java/de/juplo/kafka/Application.java
+++ b/src/main/java/de/juplo/kafka/Application.java
@@ -1,46 +1,51 @@
 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.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
-import org.springframework.util.Assert;
+import org.springframework.kafka.core.ConsumerFactory;
 
-import java.util.concurrent.Executors;
+import javax.annotation.PreDestroy;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.TimeUnit;
 
 
 @SpringBootApplication
-@EnableConfigurationProperties(ApplicationProperties.class)
-public class Application
+@Slf4j
+public class Application implements ApplicationRunner
 {
   @Autowired
-  ApplicationProperties properties;
+  Consumer<String, Message> consumer;
+  @Autowired
+  SimpleConsumer simpleConsumer;
+
+
+  @Override
+  public void run(ApplicationArguments args) throws Exception
+  {
+    log.info("Starting EndlessConsumer");
+    simpleConsumer.start();
+  }
 
+  @PreDestroy
+  public void shutdown()
+  {
+    log.info("Signaling the consumer to quit its work");
+    consumer.wakeup();
+  }
 
-  @Bean
-  public EndlessConsumer consumer(PartitionStatisticsRepository repository)
+  @Bean(destroyMethod = "close")
+  public Consumer<String, Message> kafkaConsumer(ConsumerFactory<String, Message> factory)
   {
-    Assert.hasText(properties.getBootstrapServer(), "consumer.bootstrap-server must be set");
-    Assert.hasText(properties.getGroupId(), "consumer.group-id must be set");
-    Assert.hasText(properties.getClientId(), "consumer.client-id must be set");
-    Assert.hasText(properties.getTopic(), "consumer.topic must be set");
-
-    EndlessConsumer consumer =
-        new EndlessConsumer(
-            Executors.newFixedThreadPool(1),
-            repository,
-            properties.getBootstrapServer(),
-            properties.getGroupId(),
-            properties.getClientId(),
-            properties.getTopic(),
-            properties.getAutoOffsetReset());
-
-    consumer.start();
-
-    return consumer;
+    return factory.createConsumer();
   }
 
+
   public static void main(String[] args)
   {
     SpringApplication.run(Application.class, args);