src/main/java/org/example/notesystem/config/KafkaConfig.java - feature - NikolayVasiljev/Project

src/main/java/org/example/notesystem/config/KafkaConfig.java

48 строк2 KB

VasiljevNik

My fourth commit

04 авг 2025, 16:30

04 авг 2025, 16:301d611e1

package org.example.notesystem.config;

import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.clients.producer.ProducerConfig;
import com.fasterxml.jackson.databind.ser.std.StringSerializer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.kafka.annotation.EnableKafka;
import org.springframework.kafka.config.ConcurrentKafkaListenerContainerFactory;
import org.springframework.kafka.core.*;

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

@Configuration
@EnableKafka
public class KafkaConfig {

    @Bean
    public ProducerFactory<String, String> producerFactory() {
        Map<String, Object> configs = new HashMap<>();
        configs.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, "localhost:9092");
        configs.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
        configs.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
        return new DefaultKafkaProducerFactory<>(configs);
    }

    @Bean
    public KafkaTemplate<String, String> kafkaTemplate() {
        return new KafkaTemplate<>(producerFactory());
    }

    public ConsumerFactory<String, String> consumerFactory() {
        Map<String, Object> configs = new HashMap<>();
        configs.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, "localhost:9092");
        configs.put(ConsumerConfig.GROUP_ID_CONFIG, "notes_group");
        configs.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, org.apache.kafka.common.serialization.StringDeserializer.class);
        configs.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, org.apache.kafka.common.serialization.StringDeserializer.class);
        return new DefaultKafkaConsumerFactory<>(configs);
    }

    @Bean
    public ConcurrentKafkaListenerContainerFactory<String, String> kafkaListenerContainerFactory() {
        var factory = new ConcurrentKafkaListenerContainerFactory<String, String>();
        factory.setConsumerFactory(consumerFactory());
        return factory;
    }
}