X-Git-Url: http://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2FApplicationConfiguration.java;h=6ab716e884c706b70efa566297fad39fb5d2a933;hb=3cf17ad1f308a2cd618c554d1142830469d74978;hp=5cefa3204842de29f9f84c1e8755ff282f428133;hpb=a9200a876060edc8683dfd6d0d16c23407c189ad;p=demos%2Fkafka%2Ftraining diff --git a/src/main/java/de/juplo/kafka/ApplicationConfiguration.java b/src/main/java/de/juplo/kafka/ApplicationConfiguration.java index 5cefa32..6ab716e 100644 --- a/src/main/java/de/juplo/kafka/ApplicationConfiguration.java +++ b/src/main/java/de/juplo/kafka/ApplicationConfiguration.java @@ -1,23 +1,52 @@ package de.juplo.kafka; import org.apache.kafka.clients.consumer.ConsumerRecord; +import org.apache.kafka.common.TopicPartition; +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.listener.DeadLetterPublishingRecoverer; +import org.springframework.kafka.listener.DefaultErrorHandler; +import org.springframework.util.backoff.FixedBackOff; import java.util.function.Consumer; @Configuration -@EnableConfigurationProperties(ApplicationProperties.class) +@EnableConfigurationProperties({ KafkaProperties.class, ApplicationProperties.class }) public class ApplicationConfiguration { @Bean - public Consumer> consumer() + public Consumer> consumer() { return (record) -> { // Handle record }; } + + @Bean + public DeadLetterPublishingRecoverer recoverer( + ApplicationProperties properties, + KafkaOperations template) + { + return new DeadLetterPublishingRecoverer( + template, + (record, exception) -> new TopicPartition(properties.getDlqTopic(), record.partition())); + } + + @Bean + public DefaultErrorHandler errorHandler(DeadLetterPublishingRecoverer recoverer) + { + return new DefaultErrorHandler(recoverer, new FixedBackOff(0l, 0l)); + } + + @Bean(destroyMethod = "close") + public org.apache.kafka.clients.consumer.Consumer kafkaConsumer(ConsumerFactory factory) + { + return factory.createConsumer(); + } }