/*
 * <b>文件名</b>：ShiroUtil.java
 *
 * 文件描述：
 *
 *
 * 2017-10-11  下午2:28:25
 */

package com.whyc.util;

import com.mysql.cj.core.util.StringUtils;
import com.whyc.constant.SuperConstant;
import com.whyc.pojo.User;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.session.Session;
import org.apache.shiro.subject.Subject;
import org.apache.shiro.util.ThreadContext;


/**
 * @Description shiro工具类
 */
public class ShiroUtil {
	
	/**
	 * @Description 获得shiro的session
	 * @param
	 * @return
	 */
	public static Session getShiroSession() {
		return SecurityUtils.getSubject().getSession();
	}
	
	/**
	 * @Description 获得shiro的sessionId
	 * @param
	 * @return
	 */
	public static String getShiroSessionId() {
		return getShiroSession().getId().toString();
	}
	
	/**
	 * @Description 是否登陆
	 * @param
	 * @return
	 */
	public static Boolean isAuthenticated(){
		Subject subject = SecurityUtils.getSubject();
		return subject.isAuthenticated();
	}

	public static User getUser() {
		if (!isNullOrEmpty(ThreadContext.getSubject()) && !isNullOrEmpty(SecurityUtils.getSubject().getPrincipal())) {
			return (User) SecurityUtils.getSubject().getPrincipal();
		}else {
			return new User(0,"none");
		}
	}

	public static boolean isNullOrEmpty(Object obj) {
		if (obj == null || "".equals(obj)) {
			return true;
		} else {
			return false;
		}
	}
}