Vorlage

[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 9781a7a..a44415e 100644 (file)
--- a/src/main/java/de/juplo/kafka/Application.java
+++ b/src/main/java/de/juplo/kafka/Application.java
@@ -7,11 +7,9 @@ import org.springframework.boot.ApplicationRunner;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.kafka.core.KafkaTemplate;
-import org.springframework.kafka.support.SendResult;
-import org.springframework.util.concurrent.ListenableFuture;
-
 
 
+// tag::supersimple[]
 @Slf4j
 @SpringBootApplication
 public class Application implements ApplicationRunner
@@ -19,34 +17,18 @@ public class Application implements ApplicationRunner
   @Autowired
   KafkaTemplate<String, String> kafkaTemplate;
 
-
-  void send(String key, String value)
-  {
-    ListenableFuture<SendResult<String, String>> listenableFuture =
-        kafkaTemplate.send("test", key, value);
-
-    listenableFuture.addCallback(
-        result -> log.info(
-            "Sent {}={} to partition={}, offset={}",
-            result.getProducerRecord().key(),
-            result.getProducerRecord().value(),
-            result.getRecordMetadata().partition(),
-            result.getRecordMetadata().offset()),
-        e -> log.error("ERROR sendig message", e));
-  }
-
   @Override
   public void run(ApplicationArguments args)
   {
     for (int i = 0; i < 100; i++)
     {
-      send(Long.toString(i%10), Long.toString(i));
+      kafkaTemplate.send("test", Long.toString(i%10), Long.toString(i));
     }
   }
 
-
   public static void main(String[] args)
   {
     SpringApplication.run(Application.class, args);
   }
 }
+// end::supersimple[]