juplo.de Git - demos/kafka/wordcount/blob - src/main/java/de/juplo/kafka/wordcount/query/QueryApplicationConfiguration.java

   1 package de.juplo.kafka.wordcount.query;
   2
   3 import com.fasterxml.jackson.databind.ObjectMapper;
   4 import org.apache.kafka.streams.state.HostInfo;
   5 import org.springframework.boot.autoconfigure.web.ServerProperties;
   6 import org.springframework.boot.context.properties.EnableConfigurationProperties;
   7 import org.springframework.context.ConfigurableApplicationContext;
   8 import org.springframework.context.annotation.Bean;
   9 import org.springframework.context.annotation.Configuration;
  10
  11 import java.io.IOException;
  12 import java.net.InetSocketAddress;
  13 import java.net.Socket;
  14
  15
  16 @Configuration
  17 @EnableConfigurationProperties(QueryApplicationProperties.class)
  18 public class QueryApplicationConfiguration
  19 {
  20         @Bean
  21         public QueryStreamProcessor streamProcessor(
  22                         ServerProperties serverProperties,
  23                         QueryApplicationProperties applicationProperties,
  24                         ObjectMapper mapper,
  25                         ConfigurableApplicationContext context) throws IOException
  26         {
  27                 String host;
  28                 if (serverProperties.getAddress() == null)
  29                 {
  30                         HostInfo bootstrapServer = HostInfo.buildFromEndpoint(applicationProperties.getBootstrapServer());
  31                         Socket socket = new Socket();
  32                         socket.connect(new InetSocketAddress(bootstrapServer.host(), bootstrapServer.port()));
  33                         host = socket.getLocalAddress().getHostAddress();
  34                 }
  35                 else
  36                 {
  37                         host = serverProperties.getAddress().getHostAddress();
  38                 }
  39
  40                 Integer port = serverProperties.getPort() == null ? 8080 : serverProperties.getPort();
  41
  42                 return new QueryStreamProcessor(
  43                                 applicationProperties.getApplicationId(),
  44                                 new HostInfo(host, port),
  45                                 applicationProperties.getBootstrapServer(),
  46                                 applicationProperties.getUsersInputTopic(),
  47                                 applicationProperties.getRankingInputTopic(),
  48                                 mapper,
  49                                 context);
  50         }
  51 }