org.springframework.boot.autoconfigure.web.ServerPropertiesAutoConfiguration Maven / Gradle / Ivy
/*
* Copyright 2012-2015 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.web;
import org.springframework.beans.BeansException;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
import org.springframework.boot.autoconfigure.condition.SearchStrategy;
import org.springframework.boot.context.embedded.ConfigurableEmbeddedServletContainer;
import org.springframework.boot.context.embedded.EmbeddedServletContainerCustomizer;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.Ordered;
import org.springframework.util.Assert;
import org.springframework.util.StringUtils;
/**
* {@link EnableAutoConfiguration Auto-configuration} that configures the
* {@link ConfigurableEmbeddedServletContainer} from a {@link ServerProperties} bean.
*
* @author Dave Syer
* @author Andy Wilkinson
*/
@Configuration
@EnableConfigurationProperties
@ConditionalOnWebApplication
public class ServerPropertiesAutoConfiguration {
@Bean
@ConditionalOnMissingBean(search = SearchStrategy.CURRENT)
public ServerProperties serverProperties() {
return new ServerProperties();
}
@Bean
public DuplicateServerPropertiesDetector duplicateServerPropertiesDetector() {
return new DuplicateServerPropertiesDetector();
}
/**
* {@link EmbeddedServletContainerCustomizer} that ensures there is exactly one
* {@link ServerProperties} bean in the application context.
*/
private static class DuplicateServerPropertiesDetector implements
EmbeddedServletContainerCustomizer, Ordered, ApplicationContextAware {
private ApplicationContext applicationContext;
@Override
public int getOrder() {
return 0;
}
@Override
public void setApplicationContext(ApplicationContext applicationContext)
throws BeansException {
this.applicationContext = applicationContext;
}
@Override
public void customize(ConfigurableEmbeddedServletContainer container) {
// ServerProperties handles customization, this just checks we only have
// a single bean
String[] serverPropertiesBeans = this.applicationContext
.getBeanNamesForType(ServerProperties.class);
Assert.state(serverPropertiesBeans.length == 1,
"Multiple ServerProperties beans registered " + StringUtils
.arrayToCommaDelimitedString(serverPropertiesBeans));
}
}
}