package com.example.kafka;

import org.apache.kafka.clients.producer.KafkaProducer;
import org.apache.kafka.clients.producer.ProducerConfig;
import org.apache.kafka.clients.producer.ProducerRecord;
import org.apache.kafka.common.serialization.StringSerializer;

import java.util.Properties;

public class KafkaProducer1 {
    public static void main(String[] args) {

        System.out.println("My first Kafka Producer");

        String bootstrapServers = "kafka1:9092";

        // Create the Producer properties
        Properties properties = new Properties();
        properties.setProperty(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, bootstrapServers);
        properties.setProperty(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class.getName());
        properties.setProperty(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, StringSerializer.class.getName());

        // Create the Producer
        KafkaProducer<String, String> producer = new KafkaProducer<String, String>(properties);

        // Create a Producer record
        ProducerRecord<String, String> record =
                new ProducerRecord<String, String>("my-topic10", "Java message");

        // Send data - asynchronous
        producer.send(record);

        // Flush data
        producer.flush();

        producer.close();
        System.out.println("Producer has been closed.");
    }
}