Springify: Gemeinsame DLQ für Poison Pills und Fachlogik-Fehler konfiguriert

[demos/kafka/training] / src / main / java / de / juplo / kafka / ApplicationConfiguration.java

diff --git a/src/main/java/de/juplo/kafka/ApplicationConfiguration.java b/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
index 6ab716e..4923b09 100644 (file)
--- a/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
+++ b/src/main/java/de/juplo/kafka/ApplicationConfiguration.java
@@ -2,16 +2,20 @@ package de.juplo.kafka;
 
 import org.apache.kafka.clients.consumer.ConsumerRecord;
 import org.apache.kafka.common.TopicPartition;
+import org.apache.kafka.common.serialization.ByteArraySerializer;
+import org.apache.kafka.common.serialization.StringSerializer;
 import org.springframework.boot.autoconfigure.kafka.KafkaProperties;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.kafka.core.ConsumerFactory;
-import org.springframework.kafka.core.KafkaOperations;
+import org.springframework.kafka.core.*;
 import org.springframework.kafka.listener.DeadLetterPublishingRecoverer;
 import org.springframework.kafka.listener.DefaultErrorHandler;
+import org.springframework.kafka.support.serializer.DelegatingByTypeSerializer;
+import org.springframework.kafka.support.serializer.JsonSerializer;
 import org.springframework.util.backoff.FixedBackOff;
 
+import java.util.Map;
 import java.util.function.Consumer;
 
 
@@ -28,6 +32,23 @@ public class ApplicationConfiguration
     };
   }
 
+  @Bean
+  public ProducerFactory<String, Object> producerFactory(KafkaProperties properties) {
+    return new DefaultKafkaProducerFactory<>(
+        properties.getProducer().buildProperties(),
+        new StringSerializer(),
+        new DelegatingByTypeSerializer(Map.of(
+            byte[].class, new ByteArraySerializer(),
+            ClientMessage.class, new JsonSerializer<>())));
+  }
+
+  @Bean
+  public KafkaTemplate<String, Object> kafkaTemplate(
+      ProducerFactory<String, Object> producerFactory) {
+
+    return new KafkaTemplate<>(producerFactory);
+  }
+
   @Bean
   public DeadLetterPublishingRecoverer recoverer(
       ApplicationProperties properties,