package com.xxl.job.admin.core.util;

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

@Component
public class SpringContextUtil implements ApplicationContextAware {
    private static ApplicationContext applicationContext;

    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }

    // 下面的这个方法上加了@Override注解，原因是继承ApplicationContextAware接口是必须实现的方法
    @Override
    public void setApplicationContext(ApplicationContext applicationContext) {
        SpringContextUtil.applicationContext = applicationContext;
    }

    public static Object getBean(String name) {
        return applicationContext.getBean(name);
    }

    public static Object getBean(String name, Class<?> requiredType) {

        return applicationContext.getBean(name, requiredType);
    }

    public static <T> T getBean(Class<T> clazz) {
        return applicationContext.getBean(clazz);
    }

    public static boolean containsBean(String name) {
        return applicationContext.containsBean(name);
    }

    public static boolean isSingleton(String name) {
        return applicationContext.isSingleton(name);
    }

    public static Class<?> getType(String name) {
        return applicationContext.getType(name);
    }

    public static String[] getAliases(String name) {
        return applicationContext.getAliases(name);
    }
}