X-Git-Url: https://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2Fwordcount%2Fcounter%2FCounterApplication.java;h=1ee65ca16df5703d9c628e23993bd904647d24e1;hb=9856b2a34d6e2bda771b83d2825c1db8e2a6916f;hp=1f73d32c1259d07a46e7dee5ceeb9746a759ef7f;hpb=aec12e4b0a06b6a8f32c789dd75be45c6e71f343;p=demos%2Fkafka%2Fwordcount

diff --git a/src/main/java/de/juplo/kafka/wordcount/counter/CounterApplication.java b/src/main/java/de/juplo/kafka/wordcount/counter/CounterApplication.java
index 1f73d32..1ee65ca 100644
--- a/src/main/java/de/juplo/kafka/wordcount/counter/CounterApplication.java
+++ b/src/main/java/de/juplo/kafka/wordcount/counter/CounterApplication.java
@@ -1,14 +1,62 @@
 package de.juplo.kafka.wordcount.counter;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.kafka.clients.consumer.ConsumerConfig;
+import org.apache.kafka.common.serialization.Serdes;
+import org.apache.kafka.streams.StreamsConfig;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.context.annotation.Bean;
+
+import java.util.Properties;
+import java.util.concurrent.CompletableFuture;
+
+import static org.apache.kafka.streams.errors.StreamsUncaughtExceptionHandler.StreamThreadExceptionResponse.SHUTDOWN_CLIENT;
 
 
 @SpringBootApplication
 @EnableConfigurationProperties(CounterApplicationProperties.class)
+@Slf4j
 public class CounterApplication
 {
+	@Bean(initMethod = "start", destroyMethod = "stop")
+	public CounterStreamProcessor streamProcessor(
+			CounterApplicationProperties properties,
+			ObjectMapper objectMapper,
+			ConfigurableApplicationContext context)
+	{
+		Properties propertyMap = new Properties();
+
+		propertyMap.put(StreamsConfig.APPLICATION_ID_CONFIG, properties.getApplicationId());
+		propertyMap.put(StreamsConfig.BOOTSTRAP_SERVERS_CONFIG, properties.getBootstrapServer());
+		propertyMap.put(StreamsConfig.DEFAULT_KEY_SERDE_CLASS_CONFIG, Serdes.StringSerde.class.getName());
+		propertyMap.put(StreamsConfig.DEFAULT_VALUE_SERDE_CLASS_CONFIG, Serdes.StringSerde.class.getName());
+		propertyMap.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest");
+
+		CounterStreamProcessor streamProcessor = new CounterStreamProcessor(
+				properties.getInputTopic(),
+				properties.getOutputTopic(),
+				propertyMap,
+				objectMapper);
+
+		streamProcessor.streams.setUncaughtExceptionHandler((Throwable e) ->
+		{
+			log.error("Unexpected error!", e);
+			CompletableFuture.runAsync(() ->
+			{
+				log.info("Stopping application...");
+				SpringApplication.exit(context, () -> 1);
+			});
+			return SHUTDOWN_CLIENT;
+		});
+
+
+		return streamProcessor;
+	}
+
 	public static void main(String[] args)
 	{
 		SpringApplication.run(CounterApplication.class, args);