import lombok.extern.slf4j.Slf4j;
import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.streams.StreamsConfig;
+import org.apache.kafka.streams.state.KeyValueBytesStoreSupplier;
+import org.apache.kafka.streams.state.Stores;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.ConfigurableApplicationContext;
props.put(StreamsConfig.DEFAULT_KEY_SERDE_CLASS_CONFIG, JsonSerde.class.getName());
props.put(StreamsConfig.DEFAULT_VALUE_SERDE_CLASS_CONFIG, JsonSerde.class.getName());
props.put(JsonDeserializer.TRUSTED_PACKAGES, Top10Application.class.getPackageName());
- props.put(JsonDeserializer.KEY_DEFAULT_TYPE, String.class.getName());
+ props.put(JsonDeserializer.KEY_DEFAULT_TYPE, User.class.getName());
props.put(JsonDeserializer.VALUE_DEFAULT_TYPE, Ranking.class.getName());
props.put(
JsonDeserializer.TYPE_MAPPINGS,
"word:" + Key.class.getName() + "," +
- "counter:" + Entry.class.getName());
- props.put(JsonDeserializer.REMOVE_TYPE_INFO_HEADERS, Boolean.FALSE);
- props.put(
- JsonSerializer.TYPE_MAPPINGS,
+ "counter:" + Entry.class.getName() + "," +
+ "user:" + User.class.getName() + "," +
"ranking:" + Ranking.class.getName());
props.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest");
+ if (properties.getCommitInterval() != null)
+ props.put(StreamsConfig.COMMIT_INTERVAL_MS_CONFIG, properties.getCommitInterval());
+ if (properties.getCacheMaxBytes() != null)
+ props.put(StreamsConfig.STATESTORE_CACHE_MAX_BYTES_CONFIG, properties.getCacheMaxBytes());
+ props.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest");
return props;
}
public Top10StreamProcessor streamProcessor(
Top10ApplicationProperties applicationProperties,
Properties streamProcessorProperties,
+ KeyValueBytesStoreSupplier storeSupplier,
ConfigurableApplicationContext context)
{
Top10StreamProcessor streamProcessor = new Top10StreamProcessor(
applicationProperties.getInputTopic(),
applicationProperties.getOutputTopic(),
- streamProcessorProperties);
+ streamProcessorProperties,
+ storeSupplier);
streamProcessor.streams.setUncaughtExceptionHandler((Throwable e) ->
{
return streamProcessor;
}
+
+ @Bean
+ public KeyValueBytesStoreSupplier storeSupplier()
+ {
+ return Stores.persistentKeyValueStore("top10");
+ }
}