juplo.de Git - demos/kafka/demos-kafka-payment-system-transfer/blob - src/main/java/de/juplo/kafka/payment/transfer/TransferServiceApplication.java

   1 package de.juplo.kafka.payment.transfer;
   2
   3
   4 import com.fasterxml.jackson.databind.ObjectMapper;
   5 import de.juplo.kafka.payment.transfer.adapter.KafkaMessagingService;
   6 import de.juplo.kafka.payment.transfer.domain.TransferService;
   7 import de.juplo.kafka.payment.transfer.ports.MessagingService;
   8 import de.juplo.kafka.payment.transfer.ports.TransferRepository;
   9 import lombok.extern.slf4j.Slf4j;
  10 import org.apache.kafka.clients.producer.KafkaProducer;
  11 import org.apache.kafka.clients.producer.ProducerConfig;
  12 import org.apache.kafka.common.serialization.StringSerializer;
  13 import org.springframework.boot.SpringApplication;
  14 import org.springframework.boot.autoconfigure.SpringBootApplication;
  15 import org.springframework.boot.context.properties.EnableConfigurationProperties;
  16 import org.springframework.context.annotation.Bean;
  17
  18 import java.util.Properties;
  19
  20
  21 @SpringBootApplication
  22 @EnableConfigurationProperties(TransferServiceProperties.class)
  23 @Slf4j
  24 public class TransferServiceApplication
  25 {
  26   @Bean(destroyMethod = "close")
  27   KafkaProducer<String, String> producer(TransferServiceProperties properties)
  28   {
  29     Properties props = new Properties();
  30     props.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, properties.bootstrapServers);
  31     props.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
  32     props.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
  33
  34     return new KafkaProducer<>(props);
  35   }
  36
  37   @Bean
  38   MessagingService kafkaMessagingService(
  39       KafkaProducer<String, String> producer,
  40       ObjectMapper mapper,
  41       TransferServiceProperties properties)
  42   {
  43     return new KafkaMessagingService(producer, mapper, properties.topic);
  44   }
  45
  46   @Bean
  47   TransferService transferService(
  48       TransferRepository repository,
  49       MessagingService messagingService)
  50   {
  51     return new TransferService(repository, messagingService);
  52   }
  53
  54
  55   public static void main(String[] args)
  56   {
  57     SpringApplication.run(TransferServiceApplication.class, args);
  58   }
  59 }