content: /*
   * Copyright 2013-2023 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 com.alibaba.cloud.nacos;
  
  import com.alibaba.cloud.nacos.annotation.NacosAnnotationProcessor;
  import com.alibaba.cloud.nacos.refresh.NacosContextRefresher;
  import com.alibaba.cloud.nacos.refresh.NacosRefreshHistory;
  
  import org.springframework.beans.factory.BeanFactoryUtils;
  import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
  import org.springframework.boot.autoconfigure.condition.SearchStrategy;
  import org.springframework.context.ApplicationContext;
  import org.springframework.context.annotation.Bean;
  import org.springframework.context.annotation.Conditional;
  import org.springframework.context.annotation.Configuration;
  
  /**
   * @author juven.xuxb
   * @author freeman
   */
  @Configuration(proxyBeanMethods = false)
  @Conditional(NacosConfigEnabledCondition.class)
  public class NacosConfigAutoConfiguration {
  
  	@Bean
  	@ConditionalOnMissingBean(value = NacosConfigProperties.class, search = SearchStrategy.CURRENT)
  	public NacosConfigProperties nacosConfigProperties(ApplicationContext context) {
  		if (context.getParent() != null && BeanFactoryUtils.beanNamesForTypeIncludingAncestors(context.getParent(),
  				NacosConfigProperties.class).length > 0) {
  			return BeanFactoryUtils.beanOfTypeIncludingAncestors(context.getParent(), NacosConfigProperties.class);
  		}
  		if (NacosConfigManager.getInstance() == null) { // this should never happen except for some unit tests
  			return new NacosConfigProperties();
  		}
  		else {
  			return NacosConfigManager.getInstance().getNacosConfigProperties();
  		}
  	}
  
  	@Bean
  	public NacosRefreshHistory nacosRefreshHistory() {
  		return new NacosRefreshHistory();
  	}
  
  	@Bean
  	public NacosConfigManager nacosConfigManager(NacosConfigProperties nacosConfigProperties) {
  		return NacosConfigManager.getInstance(nacosConfigProperties);
  	}
  
  	@Bean
  	public static NacosAnnotationProcessor nacosAnnotationProcessor() {
  		return new NacosAnnotationProcessor();
  	}
  
  	@Bean
  	public NacosContextRefresher nacosContextRefresher(NacosConfigManager nacosConfigManager,
  			NacosRefreshHistory nacosRefreshHistory) {
  		// Consider that it is not necessary to be compatible with the previous
  		// configuration
  		// and use the new configuration if necessary.
  		return new NacosContextRefresher(nacosConfigManager, nacosRefreshHistory);
  	}
  
  }
  