package com.lf.server.helper;

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

/**
 * Spring上下文帮助类
 * @author WWW
 */
@Component
public class SpringContextHelper implements ApplicationContextAware {
    private static ApplicationContext context = null;

    /**
     * 设置应用程序上下文
     *
     * @param applicationContext
     * @throws BeansException
     */
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        context = applicationContext;
    }

    /**
     * 根据名称获取Bean
     *
     * @param name 类名称
     * @return
     */
    public static <T> T getBean(String name) {
        return (T) context.getBean(name);
    }

    /**
     * 根据类型获取Bean
     *
     * @param clazz 类
     * @param <T>   泛型
     * @return
     */
    public static <T> T getBean(Class<T> clazz) {
        return context.getBean(clazz);
    }

    /**
     * 获取当前环境
     *
     * @return Profile
     */
    public static String getActiveProfile() {
        return context.getEnvironment().getActiveProfiles()[0];
    }
}