/**
 * BladeX Commercial License Agreement
 * Copyright (c) 2018-2099, https://bladex.cn. All rights reserved.
 * <p>
 * Use of this software is governed by the Commercial License Agreement
 * obtained after purchasing a license from BladeX.
 * <p>
 * 1. This software is for development use only under a valid license
 * from BladeX.
 * <p>
 * 2. Redistribution of this software's source code to any third party
 * without a commercial license is strictly prohibited.
 * <p>
 * 3. Licensees may copyright their own code but cannot use segments
 * from this software for such purposes. Copyright of this software
 * remains with BladeX.
 * <p>
 * Using this software signifies agreement to this License, and the software
 * must not be used for illegal purposes.
 * <p>
 * THIS SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY. The author is
 * not liable for any claims arising from secondary or illegal development.
 * <p>
 * Author: DreamLu (596392912@qq.com)
 */
package org.springblade.core.tool.utils;

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.ApplicationEvent;
import org.springframework.lang.Nullable;

/**
 * spring 工具类
 *
 * @author Chill
 */
@Slf4j
public class SpringUtil implements ApplicationContextAware {

	private static ApplicationContext context;

	@Override
	public void setApplicationContext(@Nullable ApplicationContext context) throws BeansException {
		SpringUtil.context = context;
	}

	/**
	 * 获取bean
	 *
	 * @param clazz class类
	 * @param <T>   泛型
	 * @return T
	 */
	public static <T> T getBean(Class<T> clazz) {
		if (clazz == null) {
			return null;
		}
		return context.getBean(clazz);
	}

	/**
	 * 获取bean
	 *
	 * @param beanId beanId
	 * @param <T>    泛型
	 * @return T
	 */
	public static <T> T getBean(String beanId) {
		if (beanId == null) {
			return null;
		}
		return (T) context.getBean(beanId);
	}

	/**
	 * 获取bean
	 *
	 * @param beanName bean名称
	 * @param clazz    class类
	 * @param <T>      泛型
	 * @return T
	 */
	public static <T> T getBean(String beanName, Class<T> clazz) {
		if (null == beanName || "".equals(beanName.trim())) {
			return null;
		}
		if (clazz == null) {
			return null;
		}
		return (T) context.getBean(beanName, clazz);
	}

	/**
	 * 获取 ApplicationContext
	 *
	 * @return ApplicationContext
	 */
	public static ApplicationContext getContext() {
		if (context == null) {
			return null;
		}
		return context;
	}

	/**
	 * 发布事件
	 *
	 * @param event 事件
	 */
	public static void publishEvent(ApplicationEvent event) {
		if (context == null) {
			return;
		}
		try {
			context.publishEvent(event);
		} catch (Exception ex) {
			log.error(ex.getMessage());
		}
	}

}
