X-Git-Url: https://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2Fwordcount%2Fquery%2FQueryStreamProcessor.java;h=15b28dbdc5246fea5e149957b5ad3a927df8abf2;hb=5c3e257b49dbcabc0fadc7fd335dcfc4ba57c6ef;hp=886c8cf22773f9291fe89d904df430139b924ed2;hpb=fd0085bfd05d92d9619f480b9bc25a4b7f3065f9;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 886c8cf..15b28db 100644 --- a/src/main/java/de/juplo/kafka/wordcount/query/QueryStreamProcessor.java +++ b/src/main/java/de/juplo/kafka/wordcount/query/QueryStreamProcessor.java @@ -16,23 +16,19 @@ import org.apache.kafka.streams.kstream.Materialized; import org.apache.kafka.streams.state.HostInfo; import org.apache.kafka.streams.state.QueryableStoreTypes; import org.apache.kafka.streams.state.ReadOnlyKeyValueStore; -import org.springframework.boot.SpringApplication; -import org.springframework.context.ConfigurableApplicationContext; import java.net.URI; import java.util.Optional; import java.util.Properties; -import java.util.concurrent.CompletableFuture; - -import static org.apache.kafka.streams.errors.StreamsUncaughtExceptionHandler.StreamThreadExceptionResponse.SHUTDOWN_CLIENT; @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> storeParameters; public final ObjectMapper mapper; @@ -42,8 +38,7 @@ public class QueryStreamProcessor HostInfo applicationServer, String usersInputTopic, String rankingInputTopic, - ObjectMapper mapper, - ConfigurableApplicationContext context) + ObjectMapper mapper) { StreamsBuilder builder = new StreamsBuilder(); @@ -69,28 +64,17 @@ public class QueryStreamProcessor throw new RuntimeException(e); } }) - .toTable(Materialized.as(storeName)); + .toTable(Materialized.as(STORE_NAME)); streams = new KafkaStreams(builder.build(), props); - streams.setUncaughtExceptionHandler((Throwable e) -> - { - log.error("Unexpected error!", e); - CompletableFuture.runAsync(() -> - { - log.info("Stopping application..."); - SpringApplication.exit(context, () -> 1); - }); - return SHUTDOWN_CLIENT; - }); - hostInfo = applicationServer; - storeParameters = StoreQueryParameters.fromNameAndType(storeName, QueryableStoreTypes.keyValueStore());; + storeParameters = StoreQueryParameters.fromNameAndType(STORE_NAME, QueryableStoreTypes.keyValueStore());; this.mapper = mapper; } public Optional 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());