X-Git-Url: https://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2Fwordcount%2Fquery%2FQueryStreamProcessor.java;fp=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2Fwordcount%2Fquery%2FQueryStreamProcessor.java;h=bf27e2d4a678e0d9cbd5f9d64768069ff872b07f;hb=700f80444d14b201f7b696fb5b7bcab0d767f007;hp=dcb123485fd17e35aaa77e1a2b4d8a8aa584fd44;hpb=913c2c4ec0a3584f6be27c8341898d17c4260501;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 dcb1234..bf27e2d 100644
--- a/src/main/java/de/juplo/kafka/wordcount/query/QueryStreamProcessor.java
+++ b/src/main/java/de/juplo/kafka/wordcount/query/QueryStreamProcessor.java
@@ -60,13 +60,15 @@ public class QueryStreamProcessor
 		KTable<String, User> users = builder
 				.stream(
 						usersInputTopic,
-						Consumed.with(null, new JsonSerde().copyWithType(User.class)))
+						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(
@@ -76,6 +78,7 @@ public class QueryStreamProcessor
 				.toTable(
 						Materialized
 								.<String, UserRanking>as(rankingStoreSupplier)
+								.withKeySerde(Serdes.String())
 								.withValueSerde(new JsonSerde().copyWithType(UserRanking.class)));
 
 		Topology topology = builder.build();