From: Kai Moritz <kai@juplo.de>
Date: Wed, 12 Jun 2024 21:08:57 +0000 (+0200)
Subject: query: 2.0.0 - (GREEN) Adjusted the implementation to the new expectations
X-Git-Tag: popular-on-query~9
X-Git-Url: https://juplo.de/gitweb/?a=commitdiff_plain;h=913c2c4ec0a3584f6be27c8341898d17c4260501;p=demos%2Fkafka%2Fwordcount

query: 2.0.0 - (GREEN) Adjusted the implementation to the new expectations

* Messages from the incomming topic, that is written by the `users` service
  can be serialized, although no type-information is conveyed via the
  headers.
---

diff --git a/src/main/java/de/juplo/kafka/wordcount/query/QueryApplicationConfiguration.java b/src/main/java/de/juplo/kafka/wordcount/query/QueryApplicationConfiguration.java
index 2ece744..6c7844d 100644
--- a/src/main/java/de/juplo/kafka/wordcount/query/QueryApplicationConfiguration.java
+++ b/src/main/java/de/juplo/kafka/wordcount/query/QueryApplicationConfiguration.java
@@ -92,7 +92,6 @@ public class QueryApplicationConfiguration
 				JsonDeserializer.TYPE_MAPPINGS,
 				"user:" + Key.class.getName() + "," +
 				"ranking:" + Ranking.class.getName() + "," +
-				"userdata:" + User.class.getName() + "," +
 				"userranking:" + UserRanking.class.getName());
 
 		return props;
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..dcb1234 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;
@@ -57,7 +58,9 @@ public class QueryStreamProcessor
 		StreamsBuilder builder = new StreamsBuilder();
 
 		KTable<String, User> users = builder
-				.stream(usersInputTopic)
+				.stream(
+						usersInputTopic,
+						Consumed.with(null, new JsonSerde().copyWithType(User.class)))
 				.toTable(
 						Materialized
 								.<String, User>as(userStoreSupplier)