package com.ai.da.common.utils;

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

import java.util.Map;

/**
 * @ClassName SpringUtils
 * @Description springBean工具
 * @Author dwjian
 * @Date 2020/1/15 17:10
 */
@Component
public class SpringUtils implements ApplicationContextAware {

    private static ApplicationContext applicationContext;

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

    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        SpringUtils.applicationContext = applicationContext;
    }

    public static <T> T getBean(String beanName) {
        if (applicationContext.containsBean(beanName)) {
            return (T) applicationContext.getBean(beanName);
        } else {
            return null;
        }
    }

    public static <T> Map<String, T> getBeansOfType(Class<T> baseType) {
        return applicationContext.getBeansOfType(baseType);
    }

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