package de.juplo.kafka;
-import org.apache.kafka.clients.consumer.ConsumerRecord;
+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.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;
-import java.util.function.Consumer;
@Configuration
public class ApplicationConfiguration
{
@Bean
- public Consumer<ConsumerRecord<String, Long>> consumer()
+ public KeyCountingRecordHandler messageCountingRecordHandler()
{
- return (record) ->
- {
- // Handle record
- };
+ return new KeyCountingRecordHandler();
+ }
+
+ @Bean
+ public KeyCountingRebalanceListener wordcountRebalanceListener(
+ KeyCountingRecordHandler keyCountingRecordHandler,
+ PartitionStatisticsRepository repository,
+ Consumer<String, Long> consumer,
+ ApplicationProperties properties)
+ {
+ return new KeyCountingRebalanceListener(
+ keyCountingRecordHandler,
+ repository,
+ properties.getClientId(),
+ properties.getTopic(),
+ Clock.systemDefaultZone(),
+ properties.getCommitInterval(),
+ consumer);
}
@Bean
public EndlessConsumer<String, Long> endlessConsumer(
KafkaConsumer<String, Long> kafkaConsumer,
ExecutorService executor,
- Consumer<ConsumerRecord<String, Long>> handler,
+ KeyCountingRebalanceListener keyCountingRebalanceListener,
+ KeyCountingRecordHandler keyCountingRecordHandler,
ApplicationProperties properties)
{
return
properties.getClientId(),
properties.getTopic(),
kafkaConsumer,
- handler);
+ keyCountingRebalanceListener,
+ keyCountingRecordHandler);
}
@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("auto.commit.interval.ms", (int)properties.getCommitInterval().toMillis());
props.put("metadata.max.age.ms", "1000");