package de.juplo.kafka;
-import org.apache.kafka.clients.consumer.KafkaConsumer;
-import org.apache.kafka.common.serialization.LongDeserializer;
-import org.apache.kafka.common.serialization.StringDeserializer;
+import org.apache.kafka.clients.consumer.ConsumerRecord;
+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 java.util.Properties;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
+import java.util.function.Consumer;
@Configuration
-@EnableConfigurationProperties(ApplicationProperties.class)
+@EnableConfigurationProperties({ KafkaProperties.class, ApplicationProperties.class })
public class ApplicationConfiguration
{
@Bean
- public EndlessConsumer endlessConsumer(
- KafkaConsumer<String, String> kafkaConsumer,
+ public Consumer<ConsumerRecord<String, Long>> consumer()
+ {
+ return (record) ->
+ {
+ // Handle record
+ };
+ }
+
+ @Bean
+ public EndlessConsumer<String, Long> endlessConsumer(
+ org.apache.kafka.clients.consumer.Consumer<String, Long> kafkaConsumer,
ExecutorService executor,
- ApplicationProperties properties)
+ Consumer<ConsumerRecord<String, Long>> handler,
+ KafkaProperties kafkaProperties,
+ ApplicationProperties applicationProperties)
{
return
- new EndlessConsumer(
+ new EndlessConsumer<>(
executor,
- properties.getClientId(),
- properties.getTopic(),
- kafkaConsumer);
+ kafkaProperties.getConsumer().getClientId(),
+ applicationProperties.getTopic(),
+ kafkaConsumer,
+ handler);
}
@Bean
}
@Bean(destroyMethod = "close")
- public KafkaConsumer<String, String> kafkaConsumer(ApplicationProperties properties)
+ public org.apache.kafka.clients.consumer.Consumer<String, Long> kafkaConsumer(ConsumerFactory<String, Long> factory)
{
- Properties props = new Properties();
-
- props.put("bootstrap.servers", properties.getBootstrapServer());
- props.put("group.id", properties.getGroupId());
- props.put("client.id", properties.getClientId());
- props.put("auto.offset.reset", properties.getAutoOffsetReset());
- props.put("metadata.max.age.ms", "1000");
- props.put("key.deserializer", StringDeserializer.class.getName());
- props.put("value.deserializer", LongDeserializer.class.getName());
-
- return new KafkaConsumer<>(props);
+ return factory.createConsumer();
}
}