X-Git-Url: https://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2Fwordcount%2Fsplitter%2FSplitterApplication.java;h=eeeeb395695bf88246bf55f9fc357c1119e46cfc;hb=6ed97946e9e3d4e94a6ec0cc05dc257f0558bae5;hp=d46a7cd4c4b3fd9e2b73f251d9e74f44f93772c7;hpb=d5f54354b2b44d125493c830bf0475f7992ee395;p=demos%2Fkafka%2Fwordcount

diff --git a/src/main/java/de/juplo/kafka/wordcount/splitter/SplitterApplication.java b/src/main/java/de/juplo/kafka/wordcount/splitter/SplitterApplication.java
index d46a7cd..eeeeb39 100644
--- a/src/main/java/de/juplo/kafka/wordcount/splitter/SplitterApplication.java
+++ b/src/main/java/de/juplo/kafka/wordcount/splitter/SplitterApplication.java
@@ -1,23 +1,57 @@
 package de.juplo.kafka.wordcount.splitter;
 
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
-
-import java.time.Clock;
+import org.springframework.expression.Expression;
+import org.springframework.expression.ExpressionParser;
+import org.springframework.expression.common.LiteralExpression;
+import org.springframework.expression.spel.standard.SpelExpressionParser;
+import org.springframework.integration.annotation.ServiceActivator;
+import org.springframework.integration.config.EnableIntegration;
+import org.springframework.integration.kafka.channel.SubscribableKafkaChannel;
+import org.springframework.integration.kafka.outbound.KafkaProducerMessageHandler;
+import org.springframework.kafka.config.KafkaListenerContainerFactory;
+import org.springframework.kafka.core.KafkaTemplate;
+import org.springframework.kafka.listener.AbstractMessageListenerContainer;
+import org.springframework.messaging.MessageHandler;
+import org.springframework.messaging.SubscribableChannel;
 
 
 @SpringBootApplication
 @EnableConfigurationProperties(SplitterApplicationProperties.class)
+@EnableIntegration
 public class SplitterApplication
 {
 	@Bean
-	Clock clock()
+	SubscribableChannel recordings(
+			KafkaTemplate<String, String> kafkaTemplate,
+			KafkaListenerContainerFactory<AbstractMessageListenerContainer<String, String>> containerFactory,
+			SplitterApplicationProperties properties,
+			@Value("${spring.kafka.consumer.group-id}") String groupId)
 	{
-		return Clock.systemDefaultZone();
+		SubscribableKafkaChannel channel =
+				new SubscribableKafkaChannel(kafkaTemplate, containerFactory, properties.getInputTopic());
+		channel.setGroupId(groupId);
+		return channel;
 	}
 
+	@Bean
+	@ServiceActivator(inputChannel = "words")
+	MessageHandler handler(
+			KafkaTemplate<String, String> kafkaTemplate,
+			SplitterApplicationProperties properties)
+	{
+		KafkaProducerMessageHandler<String, String> handler =
+				new KafkaProducerMessageHandler<>(kafkaTemplate);
+		handler.setTopicExpression(new LiteralExpression(properties.getOutputTopic()));
+		final ExpressionParser parser = new SpelExpressionParser();
+		Expression expression = parser.parseExpression("headers['kafka_receivedMessageKey']");
+		handler.setMessageKeyExpression(expression);
+		return handler;
+	}
 
 	public static void main(String[] args)
 	{