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Spring Boot Actuator AutoConfigure
/*
* Copyright 2012-2020 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.autoconfigure.web.server;
import java.util.List;
import org.springframework.beans.factory.SmartInitializingSingleton;
import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
import org.springframework.boot.LazyInitializationBeanFactoryPostProcessor;
import org.springframework.boot.actuate.autoconfigure.endpoint.web.WebEndpointProperties;
import org.springframework.boot.actuate.autoconfigure.web.ManagementContextFactory;
import org.springframework.boot.actuate.autoconfigure.web.ManagementContextType;
import org.springframework.boot.autoconfigure.AutoConfigureOrder;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration;
import org.springframework.boot.context.event.ApplicationFailedEvent;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.boot.web.context.ConfigurableWebServerApplicationContext;
import org.springframework.boot.web.context.WebServerInitializedEvent;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.event.ContextClosedEvent;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.core.Ordered;
import org.springframework.core.env.ConfigurableEnvironment;
import org.springframework.core.env.Environment;
import org.springframework.core.env.PropertySource;
import org.springframework.core.io.DefaultResourceLoader;
import org.springframework.util.Assert;
/**
* {@link EnableAutoConfiguration Auto-configuration} for the management context. If the
* {@code management.server.port} is the same as the {@code server.port} the management
* context will be the same as the main application context. If the
* {@code management.server.port} is different to the {@code server.port} the management
* context will be a separate context that has the main application context as its parent.
*
* @author Andy Wilkinson
* @since 2.0.0
*/
@Configuration(proxyBeanMethods = false)
@AutoConfigureOrder(Ordered.LOWEST_PRECEDENCE)
@EnableConfigurationProperties({ WebEndpointProperties.class, ManagementServerProperties.class })
public class ManagementContextAutoConfiguration {
@Configuration(proxyBeanMethods = false)
@ConditionalOnManagementPort(ManagementPortType.SAME)
static class SameManagementContextConfiguration implements SmartInitializingSingleton {
private final Environment environment;
SameManagementContextConfiguration(Environment environment) {
this.environment = environment;
}
@Override
public void afterSingletonsInstantiated() {
verifySslConfiguration();
verifyAddressConfiguration();
if (this.environment instanceof ConfigurableEnvironment) {
addLocalManagementPortPropertyAlias((ConfigurableEnvironment) this.environment);
}
}
private void verifySslConfiguration() {
Boolean enabled = this.environment.getProperty("management.server.ssl.enabled", Boolean.class, false);
Assert.state(!enabled, "Management-specific SSL cannot be configured as the management "
+ "server is not listening on a separate port");
}
private void verifyAddressConfiguration() {
Object address = this.environment.getProperty("management.server.address");
Assert.state(address == null, "Management-specific server address cannot be configured as the management "
+ "server is not listening on a separate port");
}
/**
* Add an alias for 'local.management.port' that actually resolves using
* 'local.server.port'.
* @param environment the environment
*/
private void addLocalManagementPortPropertyAlias(ConfigurableEnvironment environment) {
environment.getPropertySources().addLast(new PropertySource