I have tried to run this code but it doesn't work because of producer.send() doesn't accept KeyedMessage type.
I tried to import kafka.javaapi.producer.Producer instead of kafka.producer.Producer; but still doesn't work
The code is :
package sources;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Properties;
//import kafka.javaapi.producer.Producer;
import kafka.producer.KeyedMessage;
import kafka.producer.ProducerConfig;
import kafka.javaapi.producer.Producer;
//import kafka.producer.Producer;
public class ProducerCode {
private static Producer<Integer, String> producer;
private static final String topic= "mytopic";
public void initialize() {
Properties producerProps = new Properties();
producerProps.put("metadata.broker.list", "localhost:9092");
producerProps.put("serializer.class", "kafka.serializer.StringEncoder");
producerProps.put("request.required.acks", "1");
// ProducerConfig producerConfig = new ProducerConfig(producerProps);
// have a change here **
producer = new Producer<Integer, String>(new ProducerConfig(producerProps));
}
public void publishMesssage() throws Exception{
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
while (true){
System.out.print("Enter message to send to kafka broker (Press 'Y' to close producer): ");
String msg = null;
msg = reader.readLine(); // Read message from console
//Define topic name and message
KeyedMessage<Integer, String> keyedMsg = new KeyedMessage<Integer, String>(topic, msg);
producer.send(keyedMsg);
// producer.send(keyedMsg); // This publishes message on given topic
if("Y".equals(msg)){ break; }
System.out.println("--> Message [" + msg + "] sent.Check message on Consumer's program console");
}
retu;
}
public static void main(String[] args) throws Exception {
KafkaProducer kafkaProducer = new KafkaProducer();
// Initialize producer
kafkaProducer.initialize();
// Publish message
kafkaProducer.publishMesssage();
//Close the producer
producer.close();
}
}