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create a topolgy in kafka

Pragya Keshap answered on February 28, 2023 Popularity 1/10 Helpfulness 1/10

answer create a topolgy in kafka

create a topolgy in kafka

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public class HelloStreams {
    private static final Logger logger = LogManager.getLogger(HelloProducer.class);

    public static void main(String[] args) {
        Properties props = new Properties();
        props.put(StreamsConfig.APPLICATION_ID_CONFIG, AppConfigs.applicationID);
        props.put(StreamsConfig.BOOTSTRAP_SERVERS_CONFIG, AppConfigs.bootstrapServers);
        props.put(StreamsConfig.DEFAULT_KEY_SERDE_CLASS_CONFIG, Serdes.Integer().getClass());
        props.put(StreamsConfig.DEFAULT_VALUE_SERDE_CLASS_CONFIG, Serdes.String().getClass());

        StreamsBuilder streamsBuilder = new StreamsBuilder();
        KStream<Integer, String> kStream = streamsBuilder.stream(AppConfigs.topicName);
        kStream.foreach((k, v) -> System.out.println("Key= " + k + " Value= " + v));
        //kStream.peek((k,v)-> System.out.println("Key= " + k + " Value= " + v));




        Topology topology = streamsBuilder.build();
        KafkaStreams streams = new KafkaStreams(topology, props);
        logger.info("Starting stream.");
        streams.start();

        Runtime.getRuntime().addShutdownHook(new Thread(() -> {
            logger.info("Shutting down stream");
            streams.close();
        }));
    }
}

Popularity 1/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: java

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Contributed on Feb 28 2023

Pragya Keshap

0 Answers Avg Quality 2/10

create a topolgy in kafka

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