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package org.apache.shiro.spring.boot.cache;

import org.apache.shiro.biz.cache.spring.SpringCacheManager;
import org.apache.shiro.cache.CacheManager;
import org.apache.shiro.cache.ehcache.EhCacheManager;
import org.apache.shiro.spring.config.web.autoconfigure.ShiroWebAutoConfiguration;
import org.springframework.beans.BeansException;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.AutoConfigureBefore;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.cache.annotation.AbstractCachingConfiguration;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
@AutoConfigureAfter(AbstractCachingConfiguration.class)
@AutoConfigureBefore(ShiroWebAutoConfiguration.class)
@ConditionalOnProperty(prefix = ShiroCacheProperties.PREFIX, value = "type", havingValue = "spring")
public class ShiroSpringCacheConfiguration implements ApplicationContextAware {

	private ApplicationContext applicationContext;

	@Bean
	public CacheManager shiroCacheManager() {
		// 默认使用 Spring CacheManager
		org.springframework.cache.CacheManager springCacheManager = getApplicationContext().getBean(org.springframework.cache.CacheManager.class);
		// EhCache
		if (null != springCacheManager && springCacheManager instanceof org.springframework.cache.ehcache.EhCacheCacheManager) {
			EhCacheManager ehCacheManager = new EhCacheManager();
			ehCacheManager.setCacheManager(((org.springframework.cache.ehcache.EhCacheCacheManager) springCacheManager).getCacheManager());
			return ehCacheManager;
		}
		// OTHER
		return new SpringCacheManager(springCacheManager);
	}

	@Override
	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
		this.applicationContext = applicationContext;
	}

	public ApplicationContext getApplicationContext() {
		return applicationContext;
	}

}