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package org.yes.tools.utils;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.ApplicationEvent;
import org.springframework.stereotype.Component;


/***
 * Spring 工具类
 *
 * @author Co.
 * @date: 2022/10/20 18:22
 * @return
 */
@Component
public class SpringUtil implements ApplicationContextAware {
    private static ApplicationContext applicationContext;

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

    //获取applicationContext
    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }

    //通过name获取 Bean.
    public static Object getBean(String name) {
        return getApplicationContext().getBean(name);
    }

    //通过class获取Bean.
    public static  T getBean(Class clazz) {
        return getApplicationContext().getBean(clazz);
    }

    //通过name,以及Clazz返回指定的Bean
    public static  T getBean(String name, Class clazz) {
        return getApplicationContext().getBean(name, clazz);
    }

    /**
     * 发布事件
     *
     * @param event
     */
    public static void publishEvent(ApplicationEvent event) {
        if (applicationContext == null) {
            return;
        }
        applicationContext.publishEvent(event);
    }


}