spring-kafka Application 源码
spring-kafka Application 代码
文件路径:/spring-kafka-docs/src/main/java/org/springframework/kafka/jdocs/dynamic/Application.java
/*
* Copyright 2022 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
*
* https://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.kafka.jdocs.dynamic;
import org.springframework.beans.factory.config.ConfigurableBeanFactory;
import org.springframework.boot.ApplicationRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Scope;
import org.springframework.kafka.config.ConcurrentKafkaListenerContainerFactory;
import org.springframework.kafka.config.TopicBuilder;
import org.springframework.kafka.core.KafkaAdmin;
import org.springframework.kafka.listener.ConcurrentMessageListenerContainer;
/**
* Dynamic listeners.
*
* @author Gary Russell
* @since 2.8.9
*
*/
@SpringBootApplication
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
@Bean
ApplicationRunner runner(ConcurrentKafkaListenerContainerFactory<String, String> factory) {
return args -> {
createContainer(factory, "topic1", "group1");
};
}
@Bean
public ApplicationRunner runner1(ApplicationContext applicationContext) {
return args -> {
// tag::getBeans[]
applicationContext.getBean(MyPojo.class, "one", "topic2");
applicationContext.getBean(MyPojo.class, "two", "topic3");
// end::getBeans[]
};
}
// tag::create[]
private ConcurrentMessageListenerContainer<String, String> createContainer(
ConcurrentKafkaListenerContainerFactory<String, String> factory, String topic, String group) {
ConcurrentMessageListenerContainer<String, String> container = factory.createContainer(topic);
container.getContainerProperties().setMessageListener(new MyListener());
container.getContainerProperties().setGroupId(group);
container.setBeanName(group);
container.start();
return container;
}
// end::create[]
@Bean
public KafkaAdmin.NewTopics topics() {
return new KafkaAdmin.NewTopics(
TopicBuilder.name("topic1")
.partitions(10)
.replicas(1)
.build(),
TopicBuilder.name("topic2")
.partitions(10)
.replicas(1)
.build(),
TopicBuilder.name("topic3")
.partitions(10)
.replicas(1)
.build());
}
// tag::pojoBean[]
@Bean
@Scope(ConfigurableBeanFactory.SCOPE_PROTOTYPE)
MyPojo pojo(String id, String topic) {
return new MyPojo(id, topic);
}
//end::pojoBean[]
}
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