1 package de.juplo.kafka;
3 import org.apache.kafka.clients.consumer.ConsumerRecord;
4 import org.apache.kafka.clients.consumer.KafkaConsumer;
5 import org.apache.kafka.common.serialization.LongDeserializer;
6 import org.apache.kafka.common.serialization.StringDeserializer;
7 import org.springframework.boot.context.properties.EnableConfigurationProperties;
8 import org.springframework.context.annotation.Bean;
9 import org.springframework.context.annotation.Configuration;
11 import java.time.Clock;
12 import java.util.Properties;
13 import java.util.concurrent.ExecutorService;
14 import java.util.concurrent.Executors;
15 import java.util.function.Consumer;
19 @EnableConfigurationProperties(ApplicationProperties.class)
20 public class ApplicationConfiguration
23 public Consumer<ConsumerRecord<String, Long>> consumer()
32 public EndlessConsumer<String, Long> endlessConsumer(
33 KafkaConsumer<String, Long> kafkaConsumer,
34 ExecutorService executor,
35 Consumer<ConsumerRecord<String, Long>> handler,
36 PartitionStatisticsRepository repository,
37 ApplicationProperties properties)
40 new EndlessConsumer<>(
43 properties.getClientId(),
44 properties.getTopic(),
45 Clock.systemDefaultZone(),
46 properties.getCommitInterval(),
52 public ExecutorService executor()
54 return Executors.newSingleThreadExecutor();
57 @Bean(destroyMethod = "close")
58 public KafkaConsumer<String, Long> kafkaConsumer(ApplicationProperties properties)
60 Properties props = new Properties();
62 props.put("bootstrap.servers", properties.getBootstrapServer());
63 props.put("partition.assignment.strategy", "org.apache.kafka.clients.consumer.CooperativeStickyAssignor");
64 props.put("group.id", properties.getGroupId());
65 props.put("client.id", properties.getClientId());
66 props.put("enable.auto.commit", false);
67 props.put("auto.offset.reset", properties.getAutoOffsetReset());
68 props.put("metadata.max.age.ms", "1000");
69 props.put("key.deserializer", StringDeserializer.class.getName());
70 props.put("value.deserializer", LongDeserializer.class.getName());
72 return new KafkaConsumer<>(props);