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.Consumer;
+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.Properties;
+import java.util.Optional;
+import org.springframework.kafka.core.ConsumerFactory;
+
+import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
@Configuration
-@EnableConfigurationProperties(ApplicationProperties.class)
+@EnableConfigurationProperties({ KafkaProperties.class, ApplicationProperties.class })
public class ApplicationConfiguration
{
@Bean
- public EndlessConsumer endlessConsumer(
- KafkaConsumer<String, String> kafkaConsumer,
- ApplicationProperties properties)
+ public ApplicationRecordHandler applicationRecordHandler(
+ AdderResults adderResults,
+ KafkaProperties kafkaProperties,
+ ApplicationProperties applicationProperties)
{
- EndlessConsumer consumer =
- new EndlessConsumer(
- Executors.newFixedThreadPool(1),
- properties.getClientId(),
- properties.getTopic(),
- kafkaConsumer);
+ return new ApplicationRecordHandler(
+ adderResults,
+ Optional.ofNullable(applicationProperties.getThrottle()),
+ kafkaProperties.getClientId());
+ }
- consumer.start();
+ @Bean
+ public AdderResults adderResults()
+ {
+ return new AdderResults();
+ }
- return consumer;
+ @Bean
+ public ApplicationRebalanceListener rebalanceListener(
+ ApplicationRecordHandler recordHandler,
+ AdderResults adderResults,
+ StateRepository stateRepository,
+ KafkaProperties kafkaProperties)
+ {
+ return new ApplicationRebalanceListener(
+ recordHandler,
+ adderResults,
+ stateRepository,
+ kafkaProperties.getClientId());
}
- @Bean(destroyMethod = "close")
- public KafkaConsumer<String, String> kafkaConsumer(ApplicationProperties properties)
+ @Bean
+ public EndlessConsumer<String, Message> endlessConsumer(
+ Consumer<String, Message> kafkaConsumer,
+ ExecutorService executor,
+ ApplicationRebalanceListener rebalanceListener,
+ RecordHandler recordHandler,
+ KafkaProperties kafkaProperties,
+ ApplicationProperties applicationProperties)
{
- Properties props = new Properties();
+ return
+ new EndlessConsumer<>(
+ executor,
+ kafkaProperties.getClientId(),
+ applicationProperties.getTopic(),
+ kafkaConsumer,
+ rebalanceListener,
+ recordHandler);
+ }
- 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());
+ @Bean
+ public ExecutorService executor()
+ {
+ return Executors.newSingleThreadExecutor();
+ }
- return new KafkaConsumer<>(props);
+ @Bean(destroyMethod = "close")
+ public Consumer<String, Message> kafkaConsumer(ConsumerFactory<String, Message> factory)
+ {
+ return factory.createConsumer();
}
}