X-Git-Url: https://juplo.de/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2FSimpleProducer.java;fp=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2FSimpleProducer.java;h=0000000000000000000000000000000000000000;hb=ba21d6becd37dbe82fa1e71b1b44ac2589bc661a;hp=43a72275c88bfd82e47b314d077363133e44cd41;hpb=e6b4f984fdd50c24485337d0fd335233b9f0e299;p=demos%2Fkafka%2Ftraining diff --git a/src/main/java/de/juplo/kafka/SimpleProducer.java b/src/main/java/de/juplo/kafka/SimpleProducer.java deleted file mode 100644 index 43a7227..0000000 --- a/src/main/java/de/juplo/kafka/SimpleProducer.java +++ /dev/null @@ -1,117 +0,0 @@ -package de.juplo.kafka; - -import lombok.extern.slf4j.Slf4j; -import org.apache.kafka.clients.producer.KafkaProducer; -import org.apache.kafka.clients.producer.ProducerRecord; -import org.apache.kafka.common.serialization.StringSerializer; - -import java.util.Properties; -import java.util.concurrent.ExecutorService; -import java.util.concurrent.Future; - - -@Slf4j -public class SimpleProducer -{ - private final String id; - private final String topic; - private final KafkaProducer producer; - - private long produced = 0; - - public SimpleProducer(String clientId, String topic) - { - // tag::create[] - Properties props = new Properties(); - props.put("bootstrap.servers", "localhost:9092"); - props.put("key.serializer", StringSerializer.class.getName()); - props.put("value.serializer", StringSerializer.class.getName()); - - KafkaProducer producer = new KafkaProducer<>(props); - // end::create[] - - this.id = clientId; - this.topic = topic; - this.producer = producer; - } - - public void run() - { - long i = 0; - - try - { - for (; i < 100 ; i++) - { - send(Long.toString(i%10), Long.toString(i)); - } - - log.info("{} - Done", id); - } - finally - { - log.info("{}: Closing the KafkaProducer", id); - producer.close(); - log.info("{}: Produced {} messages in total, exiting!", id, produced); - } - } - - void send(String key, String value) - { - final long time = System.currentTimeMillis(); - - final ProducerRecord record = new ProducerRecord<>( - topic, // Topic - key, // Key - value // Value - ); - - producer.send(record, (metadata, e) -> - { - long now = System.currentTimeMillis(); - if (e == null) - { - // HANDLE SUCCESS - produced++; - log.debug( - "{} - Sent key={} message={} partition={}/{} timestamp={} latency={}ms", - id, - record.key(), - record.value(), - metadata.partition(), - metadata.offset(), - metadata.timestamp(), - now - time - ); - } - else - { - // HANDLE ERROR - log.error( - "{} - ERROR key={} timestamp={} latency={}ms: {}", - id, - record.key(), - metadata == null ? -1 : metadata.timestamp(), - now - time, - e.toString() - ); - } - }); - - long now = System.currentTimeMillis(); - log.trace( - "{} - Queued #{} key={} latency={}ms", - id, - value, - record.key(), - now - time - ); - } - - - public static void main(String[] args) throws Exception - { - SimpleProducer producer = new SimpleProducer("P", "test"); - producer.run(); - } -}