data-server-java/src/main/java/com/tidecloud/dataacceptance/config/KafkaProducerConfig.java

package com.tidecloud.dataacceptance.config;

import java.util.HashMap;
import java.util.Map;

import org.apache.kafka.clients.producer.ProducerConfig;
import org.apache.kafka.common.serialization.ByteArraySerializer;
import org.apache.kafka.common.serialization.IntegerSerializer;
import org.apache.kafka.common.serialization.StringSerializer;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.kafka.annotation.EnableKafka;
import org.springframework.kafka.core.DefaultKafkaProducerFactory;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.kafka.core.ProducerFactory;

/**
 * Created by ryan on 18/4/27.
 */
@Configuration
@EnableKafka
public class KafkaProducerConfig {

    @Value("${spring.kafka.bootstrap-servers}")
    private String kafkaBrokers;

    @Bean
    public ProducerFactory<Integer, byte[]> producerFactory() {
        return new DefaultKafkaProducerFactory<>(producerConfigs());
    }

    @Bean
    public ProducerFactory<Integer, String> stringProducerFactory() {
        return new DefaultKafkaProducerFactory<>(stringProducerConfigs());
    }

    @Bean
    public Map<String, Object> producerConfigs() {
        Map<String, Object> props = new HashMap<>();
        props.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, kafkaBrokers);
        props.put(ProducerConfig.RETRIES_CONFIG, 2);
        props.put(ProducerConfig.BATCH_SIZE_CONFIG, 16384);
        props.put(ProducerConfig.LINGER_MS_CONFIG, 1);
        props.put(ProducerConfig.BUFFER_MEMORY_CONFIG, 33554432);
        props.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, IntegerSerializer.class);
        props.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, ByteArraySerializer.class);
        return props;
    }

    @Bean
    public Map<String, Object> stringProducerConfigs() {
        Map<String, Object> props = new HashMap<>();
        props.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, kafkaBrokers);
        props.put(ProducerConfig.RETRIES_CONFIG, 2);
        props.put(ProducerConfig.BATCH_SIZE_CONFIG, 16384);
        props.put(ProducerConfig.LINGER_MS_CONFIG, 1);
        props.put(ProducerConfig.BUFFER_MEMORY_CONFIG, 33554432);
        props.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, IntegerSerializer.class);
        props.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
        return props;
    }

    @Bean
    public KafkaTemplate<Integer, byte[]> kafkaTemplate() {
        return new KafkaTemplate<Integer, byte[]>(producerFactory());
    }

    @Bean
    public KafkaTemplate<Integer, String> IntegerStringkafkaTemplate() {
        return new KafkaTemplate<Integer, String>(stringProducerFactory());
    }
}