From: Kai Moritz <kai@juplo.de>
Date: Sun, 9 Jun 2024 08:52:25 +0000 (+0200)
Subject: query: 1.0.6 - Refined `QueryStreamProcessor`
X-Git-Tag: query-with-kafkaproducer~15
X-Git-Url: https://juplo.de/gitweb/?a=commitdiff_plain;h=5c3e257b49dbcabc0fadc7fd335dcfc4ba57c6ef;p=demos%2Fkafka%2Fwordcount

query: 1.0.6 - Refined `QueryStreamProcessor`
--
store name is a constant
---

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 2d3d4c8..15b28db 100644
--- a/src/main/java/de/juplo/kafka/wordcount/query/QueryStreamProcessor.java
+++ b/src/main/java/de/juplo/kafka/wordcount/query/QueryStreamProcessor.java
@@ -25,9 +25,10 @@ import java.util.Properties;
 @Slf4j
 public class QueryStreamProcessor
 {
+	public static final String STORE_NAME = "rankings-by-username";
+
 	public final KafkaStreams streams;
 	public final HostInfo hostInfo;
-	public final String storeName = "rankingsByUsername";
 	public final StoreQueryParameters<ReadOnlyKeyValueStore<String, String>> storeParameters;
 	public final ObjectMapper mapper;
 
@@ -63,17 +64,17 @@ public class QueryStreamProcessor
 						throw new RuntimeException(e);
 					}
 				})
-				.toTable(Materialized.as(storeName));
+				.toTable(Materialized.as(STORE_NAME));
 
 		streams = new KafkaStreams(builder.build(), props);
 		hostInfo = applicationServer;
-		storeParameters = StoreQueryParameters.fromNameAndType(storeName, QueryableStoreTypes.keyValueStore());;
+		storeParameters = StoreQueryParameters.fromNameAndType(STORE_NAME, QueryableStoreTypes.keyValueStore());;
 		this.mapper = mapper;
 	}
 
 	public Optional<URI> getRedirect(String username)
 	{
-		KeyQueryMetadata metadata = streams.queryMetadataForKey(storeName, username, Serdes.String().serializer());
+		KeyQueryMetadata metadata = streams.queryMetadataForKey(STORE_NAME, username, Serdes.String().serializer());
 		HostInfo activeHost = metadata.activeHost();
 		log.debug("Local store for {}: {}, {}:{}", username, metadata.partition(), activeHost.host(), activeHost.port());