com.github.frtu.kafka.config.consumer.ConsumerConfiguration Maven / Gradle / Ivy

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package com.github.frtu.kafka.config.consumer;

import com.github.frtu.kafka.config.commons.BaseKafkaConfiguration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
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.config.KafkaListenerContainerFactory;
import org.springframework.kafka.core.ConsumerFactory;
import org.springframework.kafka.core.DefaultKafkaConsumerFactory;
import org.springframework.kafka.listener.ConcurrentMessageListenerContainer;

import java.util.Properties;

import static org.apache.kafka.clients.consumer.ConsumerConfig.*;

/**
 * Configuration for Spring Kafka consumer.
 *
 * @param  Type of the key of the published message
 * @param  Type of the value of the published message
 * @author fred
 * @since 0.3.7
 */
//@EnableKafka
@Configuration
public class ConsumerConfiguration extends BaseKafkaConfiguration {
    private static final Logger LOGGER = LoggerFactory.getLogger(ConsumerConfiguration.class);

    @Bean
    public ConsumerFactory consumerFactory() {
        final Properties properties = baseKafkaConfigs();
        checkKeyAndCopyIfEmpty(properties, GROUP_ID_CONFIG, CLIENT_ID_CONFIG);
        return new DefaultKafkaConsumerFactory(properties);
    }

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