package de.juplo.kafka;
+import org.apache.kafka.clients.consumer.Consumer;
import org.apache.kafka.clients.consumer.KafkaConsumer;
-import org.apache.kafka.common.serialization.LongDeserializer;
import org.apache.kafka.common.serialization.StringDeserializer;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
+import java.time.Clock;
import java.util.Properties;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
public class ApplicationConfiguration
{
@Bean
- public EndlessConsumer endlessConsumer(
+ public ApplicationRecordHandler recordHandler()
+ {
+ return new ApplicationRecordHandler();
+ }
+
+ @Bean
+ public ApplicationRebalanceListener rebalanceListener(
+ ApplicationRecordHandler recordHandler,
+ StateRepository stateRepository,
+ Consumer<String, String> consumer,
+ ApplicationProperties properties)
+ {
+ return new ApplicationRebalanceListener(
+ recordHandler,
+ stateRepository,
+ properties.getClientId(),
+ properties.getTopic(),
+ Clock.systemDefaultZone(),
+ properties.getCommitInterval(),
+ consumer);
+ }
+
+ @Bean
+ public EndlessConsumer<String, String> endlessConsumer(
KafkaConsumer<String, String> kafkaConsumer,
ExecutorService executor,
+ ApplicationRebalanceListener rebalanceListener,
+ ApplicationRecordHandler recordHandler,
ApplicationProperties properties)
{
return
- new EndlessConsumer(
+ new EndlessConsumer<>(
executor,
properties.getClientId(),
properties.getTopic(),
- kafkaConsumer);
+ kafkaConsumer,
+ rebalanceListener,
+ recordHandler);
}
@Bean
Properties props = new Properties();
props.put("bootstrap.servers", properties.getBootstrapServer());
+ props.put("partition.assignment.strategy", "org.apache.kafka.clients.consumer.CooperativeStickyAssignor");
props.put("group.id", properties.getGroupId());
props.put("client.id", properties.getClientId());
+ props.put("enable.auto.commit", false);
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());
+ props.put("value.deserializer", StringDeserializer.class.getName());
return new KafkaConsumer<>(props);
}