spring ShutdownEndpoint 源码
springboot ShutdownEndpoint 代码
文件路径：/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/context/ShutdownEndpoint.java
/*
* Copyright 2012-2022 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.boot.actuate.context;
import java.util.Map;
import org.springframework.beans.BeansException;
import org.springframework.boot.actuate.endpoint.annotation.Endpoint;
import org.springframework.boot.actuate.endpoint.annotation.WriteOperation;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.ConfigurableApplicationContext;
/**
* {@link Endpoint @Endpoint} to shutdown the {@link ApplicationContext}.
*
* @author Dave Syer
* @author Christian Dupuis
* @author Andy Wilkinson
* @since 2.0.0
*/
@Endpoint(id = "shutdown", enableByDefault = false)
public class ShutdownEndpoint implements ApplicationContextAware {
private static final Map<String, String> NO_CONTEXT_MESSAGE = Map.of("message", "No context to shutdown.");
private static final Map<String, String> SHUTDOWN_MESSAGE = Map.of("message", "Shutting down, bye...");
private ConfigurableApplicationContext context;
@WriteOperation
public Map<String, String> shutdown() {
if (this.context == null) {
return NO_CONTEXT_MESSAGE;
}
try {
return SHUTDOWN_MESSAGE;
}
finally {
Thread thread = new Thread(this::performShutdown);
thread.setContextClassLoader(getClass().getClassLoader());
thread.start();
}
}
private void performShutdown() {
try {
Thread.sleep(500L);
}
catch (InterruptedException ex) {
Thread.currentThread().interrupt();
}
this.context.close();
}
@Override
public void setApplicationContext(ApplicationContext context) throws BeansException {
if (context instanceof ConfigurableApplicationContext configurableContext) {
this.context = configurableContext;
}
}
}
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- 所属分类： 后端技术
- 本文标签： Spring Boot Java Spring
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