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wordcount
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WIP
[demos/kafka/wordcount]
/
src
/
main
/
java
/
de
/
juplo
/
kafka
/
wordcount
/
top10
/
Top10StreamProcessor.java
diff --git
a/src/main/java/de/juplo/kafka/wordcount/top10/Top10StreamProcessor.java
b/src/main/java/de/juplo/kafka/wordcount/top10/Top10StreamProcessor.java
index
e6deee0
..
084e425
100644
(file)
--- a/
src/main/java/de/juplo/kafka/wordcount/top10/Top10StreamProcessor.java
+++ b/
src/main/java/de/juplo/kafka/wordcount/top10/Top10StreamProcessor.java
@@
-4,6
+4,7
@@
import lombok.extern.slf4j.Slf4j;
import org.apache.kafka.streams.KafkaStreams;
import org.apache.kafka.streams.KeyValue;
import org.apache.kafka.streams.StreamsBuilder;
import org.apache.kafka.streams.KafkaStreams;
import org.apache.kafka.streams.KeyValue;
import org.apache.kafka.streams.StreamsBuilder;
+import org.apache.kafka.streams.Topology;
import java.util.Properties;
import java.util.Properties;
@@
-18,6
+19,17
@@
public class Top10StreamProcessor
String inputTopic,
String outputTopic,
Properties props)
String inputTopic,
String outputTopic,
Properties props)
+ {
+ Topology topology = Top10StreamProcessor.buildTopology(
+ inputTopic,
+ outputTopic);
+
+ streams = new KafkaStreams(topology, props);
+ }
+
+ static Topology buildTopology(
+ String inputTopic,
+ String outputTopic)
{
StreamsBuilder builder = new StreamsBuilder();
{
StreamsBuilder builder = new StreamsBuilder();
@@
-40,7
+52,10
@@
public class Top10StreamProcessor
.toStream()
.to(outputTopic);
.toStream()
.to(outputTopic);
- streams = new KafkaStreams(builder.build(), props);
+ Topology topology = builder.build();
+ log.info("\n\n{}", topology.describe());
+
+ return topology;
}
public void start()
}
public void start()