package de.juplo.kafka;
+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 java.util.Map;
import java.util.Optional;
import org.springframework.kafka.config.KafkaListenerEndpointRegistry;
+import org.springframework.kafka.core.DefaultKafkaProducerFactory;
+import org.springframework.kafka.core.KafkaOperations;
+import org.springframework.kafka.core.KafkaTemplate;
+import org.springframework.kafka.core.ProducerFactory;
+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;
@Configuration
endpointRegistry,
recordHandler);
}
+
+ @Bean
+ public ProducerFactory<String, Object> producerFactory(
+ KafkaProperties properties)
+ {
+ return new DefaultKafkaProducerFactory<>(
+ properties.getProducer().buildProperties(),
+ new StringSerializer(),
+ new DelegatingByTypeSerializer(
+ Map.of(
+ byte[].class, new ByteArraySerializer(),
+ MessageAddNumber.class, new JsonSerializer<>(),
+ MessageCalculateSum.class, new JsonSerializer<>())));
+ }
+
+ @Bean
+ public KafkaTemplate<String, Object> kafkaTemplate(
+ ProducerFactory<String, Object> producerFactory)
+ {
+ return new KafkaTemplate<>(producerFactory);
+ }
+
+ @Bean
+ public DeadLetterPublishingRecoverer deadLetterPublishingRecoverer(
+ KafkaOperations<?, ?> kafkaTemplate)
+ {
+ return new DeadLetterPublishingRecoverer(kafkaTemplate);
+ }
+
+ @Bean
+ public DefaultErrorHandler errorHandler(
+ DeadLetterPublishingRecoverer recoverer)
+ {
+ return new DefaultErrorHandler(
+ recoverer,
+ new FixedBackOff(0l, 0l));
+ }
}