From fb65af3ddcb6304e698983fc577c7c83bc447668 Mon Sep 17 00:00:00 2001
From: Kai Moritz <kai@juplo.de>
Date: Wed, 16 Apr 2025 21:39:49 +0200
Subject: [PATCH] Beispiel auf Nachrichten vom Typ `Long` umgestellt

---
 docker/docker-compose.yml                                 | 7 +++++--
 .../java/de/juplo/kafka/ApplicationConfiguration.java     | 8 ++++----
 src/main/resources/application.yml                        | 1 +
 3 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
index e4727a3..8d70072 100644
--- a/docker/docker-compose.yml
+++ b/docker/docker-compose.yml
@@ -136,8 +136,11 @@ services:
       - kafka-3
 
   producer:
-    image: juplo/simple-producer:1.0-SNAPSHOT
-    command: kafka:9092 test producer
+    image: juplo/spring-producer:2.0-long-SNAPSHOT
+    environment:
+      spring.kafka.bootstrap-servers: kafka:9092
+      spring.kafka.client-id: producer
+      juplo.producer.topic: test
 
   consumer:
     image: juplo/spring-consumer:1.1-error-handling-SNAPSHOT
diff --git a/src/main/java/de/juplo/kafka/ApplicationConfiguration.java b/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
index 87331b3..680a839 100644
--- a/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
+++ b/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
@@ -16,9 +16,9 @@ import org.springframework.kafka.core.ConsumerFactory;
 public class ApplicationConfiguration
 {
   @Bean
-  public ExampleConsumer<String, String> exampleConsumer(
-    Consumer<String, String> kafkaConsumer,
-    RecordHandler<String, String> recordHandler,
+  public ExampleConsumer<String, Long> exampleConsumer(
+    Consumer<String, Long> kafkaConsumer,
+    RecordHandler<String, Long> recordHandler,
     ApplicationProperties properties,
     KafkaProperties kafkaProperties,
     ConfigurableApplicationContext applicationContext)
@@ -33,7 +33,7 @@ public class ApplicationConfiguration
   }
 
   @Bean
-  public RecordHandler<String, String> recordHandler()
+  public RecordHandler<String, Long> recordHandler()
   {
     return (topic, partition, offset, key, value) -> log.info("No-Ops Handler called for {}={}", key, value);
   }
diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index 71dddda..23e2ff4 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -27,6 +27,7 @@ spring:
     client-id: DEV
     consumer:
       group-id: my-group
+      value-deserializer: org.apache.kafka.common.serialization.LongDeserializer
 logging:
   level:
     root: INFO
-- 
2.20.1