org.springframework.boot.autoconfigure.kafka.KafkaAnnotationDrivenConfiguration Maven / Gradle / Ivy
/*
* Copyright 2012-2016 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.boot.autoconfigure.kafka;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
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.KafkaListenerConfigUtils;
import org.springframework.kafka.core.ConsumerFactory;
/**
* Configuration for Kafka annotation-driven support.
*
* @author Gary Russell
* @since 1.5.0
*/
@Configuration
@ConditionalOnClass(EnableKafka.class)
class KafkaAnnotationDrivenConfiguration {
private final KafkaProperties properties;
KafkaAnnotationDrivenConfiguration(KafkaProperties properties) {
this.properties = properties;
}
@Bean
@ConditionalOnMissingBean
public ConcurrentKafkaListenerContainerFactoryConfigurer kafkaListenerContainerFactoryConfigurer() {
ConcurrentKafkaListenerContainerFactoryConfigurer configurer = new ConcurrentKafkaListenerContainerFactoryConfigurer();
configurer.setKafkaProperties(this.properties);
return configurer;
}
@Bean
@ConditionalOnMissingBean(name = "kafkaListenerContainerFactory")
public ConcurrentKafkaListenerContainerFactory kafkaListenerContainerFactory(
ConcurrentKafkaListenerContainerFactoryConfigurer configurer,
ConsumerFactory kafkaConsumerFactory) {
ConcurrentKafkaListenerContainerFactory factory = new ConcurrentKafkaListenerContainerFactory();
configurer.configure(factory, kafkaConsumerFactory);
return factory;
}
@Configuration
@EnableKafka
@ConditionalOnMissingBean(name = KafkaListenerConfigUtils.KAFKA_LISTENER_ANNOTATION_PROCESSOR_BEAN_NAME)
protected static class EnableKafkaConfiguration {
}
}