X-Git-Url: https://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2Fwordcount%2Fquery%2FQueryStreamProcessor.java;h=bf27e2d4a678e0d9cbd5f9d64768069ff872b07f;hb=700f80444d14b201f7b696fb5b7bcab0d767f007;hp=474926463c42d26ab4afe5d2349f8d9b4013f825;hpb=fc5d6c6ee08a4b2e29a045bf4071dd0a4d86bc0d;p=demos%2Fkafka%2Fwordcount

diff --git a/src/main/java/de/juplo/kafka/wordcount/query/QueryStreamProcessor.java b/src/main/java/de/juplo/kafka/wordcount/query/QueryStreamProcessor.java
index 4749264..bf27e2d 100644
--- a/src/main/java/de/juplo/kafka/wordcount/query/QueryStreamProcessor.java
+++ b/src/main/java/de/juplo/kafka/wordcount/query/QueryStreamProcessor.java
@@ -5,6 +5,7 @@ import jakarta.annotation.PreDestroy;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.kafka.common.serialization.Serdes;
 import org.apache.kafka.streams.*;
+import org.apache.kafka.streams.kstream.Consumed;
 import org.apache.kafka.streams.kstream.KStream;
 import org.apache.kafka.streams.kstream.KTable;
 import org.apache.kafka.streams.kstream.Materialized;
@@ -57,13 +58,17 @@ public class QueryStreamProcessor
 		StreamsBuilder builder = new StreamsBuilder();
 
 		KTable<String, User> users = builder
-				.stream(usersInputTopic)
+				.stream(
+						usersInputTopic,
+						Consumed.with(Serdes.String(), new JsonSerde().copyWithType(User.class)))
 				.toTable(
 						Materialized
 								.<String, User>as(userStoreSupplier)
 								.withKeySerde(Serdes.String())
 								.withValueSerde(new JsonSerde().copyWithType(User.class)));
-		KStream<String, Ranking> rankings = builder.stream(rankingInputTopic);
+		KStream<String, Ranking> rankings = builder
+				.<Key, Ranking>stream(rankingInputTopic)
+				.map((key, value) -> new KeyValue<>(key.getUsername(), value));
 
 		rankings
 				.join(users, (ranking, user) -> UserRanking.of(
@@ -73,6 +78,7 @@ public class QueryStreamProcessor
 				.toTable(
 						Materialized
 								.<String, UserRanking>as(rankingStoreSupplier)
+								.withKeySerde(Serdes.String())
 								.withValueSerde(new JsonSerde().copyWithType(UserRanking.class)));
 
 		Topology topology = builder.build();