Verbesserungen & Korrekturen aus simple-consumer übernommen

[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 23c845a..e3219c1 100644 (file)
--- a/src/main/java/de/juplo/kafka/Application.java
+++ b/src/main/java/de/juplo/kafka/Application.java
@@ -1,59 +1,24 @@
 package de.juplo.kafka;
 
-import org.springframework.beans.factory.annotation.Autowired;
+import lombok.extern.slf4j.Slf4j;
 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.http.converter.json.Jackson2ObjectMapperBuilder;
-import org.springframework.util.Assert;
-
-import java.util.concurrent.Executors;
-
+import org.springframework.kafka.annotation.KafkaListener;
 
+// tag::supersimple[]
 @SpringBootApplication
-@EnableConfigurationProperties(ApplicationProperties.class)
+@Slf4j
 public class Application
 {
-  @Autowired
-  ApplicationProperties properties;
-
-
-  @Bean
-  public EndlessConsumer consumer(PartitionStatisticsRepository repository)
+  @KafkaListener(id = "supersimple", topics = "test")
+  public void recieve(String message)
   {
-    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;
+    log.info("Recieved message: {}", message);
   }
 
-  @Bean
-  public Jackson2ObjectMapperBuilder jackson2ObjectMapperBuilder()
-  {
-    return
-        new Jackson2ObjectMapperBuilder().serializers(
-            new TopicPartitionSerializer(),
-            new PartitionStatisticsSerializer());
-  }
-
-
   public static void main(String[] args)
   {
     SpringApplication.run(Application.class, args);
   }
 }
+// end::supersimple[]