1 package de.juplo.kafka;
3 import org.apache.kafka.clients.consumer.KafkaConsumer;
4 import org.apache.kafka.common.serialization.StringDeserializer;
5 import org.springframework.boot.context.properties.EnableConfigurationProperties;
6 import org.springframework.context.annotation.Bean;
7 import org.springframework.context.annotation.Configuration;
9 import java.util.Optional;
10 import java.util.Properties;
11 import java.util.concurrent.ExecutorService;
12 import java.util.concurrent.Executors;
16 @EnableConfigurationProperties(ApplicationProperties.class)
17 public class ApplicationConfiguration
20 public ApplicationRecordHandler recordHandler(
21 AdderResults adderResults,
22 ApplicationProperties properties)
24 return new ApplicationRecordHandler(
26 Optional.ofNullable(properties.getThrottle()),
27 properties.getClientId());
31 public AdderResults adderResults()
33 return new AdderResults();
37 public EndlessConsumer<String, String> endlessConsumer(
38 KafkaConsumer<String, String> kafkaConsumer,
39 ExecutorService executor,
40 ApplicationRecordHandler recordHandler,
41 ApplicationProperties properties)
44 new EndlessConsumer<>(
46 properties.getClientId(),
47 properties.getTopic(),
53 public ExecutorService executor()
55 return Executors.newSingleThreadExecutor();
58 @Bean(destroyMethod = "close")
59 public KafkaConsumer<String, String> kafkaConsumer(ApplicationProperties properties)
61 Properties props = new Properties();
63 props.put("bootstrap.servers", properties.getBootstrapServer());
64 props.put("partition.assignment.strategy", "org.apache.kafka.clients.consumer.StickyAssignor");
65 props.put("group.id", properties.getGroupId());
66 props.put("client.id", properties.getClientId());
67 props.put("auto.offset.reset", properties.getAutoOffsetReset());
68 props.put("auto.commit.interval.ms", (int)properties.getCommitInterval().toMillis());
69 props.put("metadata.max.age.ms", "1000");
70 props.put("key.deserializer", StringDeserializer.class.getName());
71 props.put("value.deserializer", StringDeserializer.class.getName());
73 return new KafkaConsumer<>(props);