X-Git-Url: https://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2Fwordcount%2Fcounter%2FCounterApplication.java;h=31086ca9b5b0fffca94323e2d10892b24a1aee25;hb=b8f6728e1957d3cfdd34efebd430e33797b67b58;hp=1ee65ca16df5703d9c628e23993bd904647d24e1;hpb=9856b2a34d6e2bda771b83d2825c1db8e2a6916f;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 1ee65ca..31086ca 100644
--- a/src/main/java/de/juplo/kafka/wordcount/counter/CounterApplication.java
+++ b/src/main/java/de/juplo/kafka/wordcount/counter/CounterApplication.java
@@ -5,6 +5,8 @@ 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.apache.kafka.streams.state.KeyValueBytesStoreSupplier;
+import org.apache.kafka.streams.state.Stores;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
@@ -22,11 +24,8 @@ import static org.apache.kafka.streams.errors.StreamsUncaughtExceptionHandler.St
 @Slf4j
 public class CounterApplication
 {
-	@Bean(initMethod = "start", destroyMethod = "stop")
-	public CounterStreamProcessor streamProcessor(
-			CounterApplicationProperties properties,
-			ObjectMapper objectMapper,
-			ConfigurableApplicationContext context)
+	@Bean
+	public Properties propertyMap(CounterApplicationProperties properties)
 	{
 		Properties propertyMap = new Properties();
 
@@ -34,12 +33,29 @@ public class CounterApplication
 		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(StreamsConfig.STATE_DIR_CONFIG, "target");
+		if (properties.getCommitInterval() != null)
+			propertyMap.put(StreamsConfig.COMMIT_INTERVAL_MS_CONFIG, properties.getCommitInterval());
+		if (properties.getCacheMaxBytes() != null)
+			propertyMap.put(StreamsConfig.CACHE_MAX_BYTES_BUFFERING_CONFIG, properties.getCacheMaxBytes());
 		propertyMap.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest");
 
+		return propertyMap;
+	}
+
+	@Bean(initMethod = "start", destroyMethod = "stop")
+	public CounterStreamProcessor streamProcessor(
+			CounterApplicationProperties properties,
+			Properties propertyMap,
+			KeyValueBytesStoreSupplier storeSupplier,
+			ObjectMapper objectMapper,
+			ConfigurableApplicationContext context)
+	{
 		CounterStreamProcessor streamProcessor = new CounterStreamProcessor(
 				properties.getInputTopic(),
 				properties.getOutputTopic(),
 				propertyMap,
+				storeSupplier,
 				objectMapper);
 
 		streamProcessor.streams.setUncaughtExceptionHandler((Throwable e) ->
@@ -57,6 +73,12 @@ public class CounterApplication
 		return streamProcessor;
 	}
 
+	@Bean
+	public KeyValueBytesStoreSupplier storeSupplier()
+	{
+		return Stores.persistentKeyValueStore("counter");
+	}
+
 	public static void main(String[] args)
 	{
 		SpringApplication.run(CounterApplication.class, args);