SessionUtils

import com.diyfintech.constant.Constant.SuperAdmin;
import com.diyfintech.pojo.SysUser;
import org.apache.log4j.Logger;

import javax.servlet.http.HttpServletRequest;
import java.util.List;
import java.util.Map;

/**
 * 
 * Session 工具类
 *
 */
public final class SessionUtils {
    
    protected static final Logger logger = Logger.getLogger(SessionUtils.class);
    
    private static final String SESSION_USER = "session_user";

    private static final String SESSION_VALIDATECODE = "session_validatecode";//验证码
    
    
    private static final String SESSION_ACCESS_URLS = "session_access_urls"; //系统能够访问的URL
    
    
    private static final String SESSION_MENUBTN_MAP = "session_menubtn_map"; //系统菜单按钮

    
    /**
      * 设置session的值
      * @param request
      * @param key
      * @param value
      */
     public static void setAttr(HttpServletRequest request,String key,Object value){
         request.getSession(true).setAttribute(key, value);
     }
     
     
     /**
      * 获取session的值
      * @param request
      * @param key
      */
     public static Object getAttr(HttpServletRequest request,String key){
         return request.getSession(true).getAttribute(key);
     }
     
     /**
      * 删除Session值
      * @param request
      * @param key
      */
     public static void removeAttr(HttpServletRequest request,String key){
         request.getSession(true).removeAttribute(key);
     }
     
     /**
      * 设置用户信息 到session
      * @param request
      * @param user
      */
     public static void setUser(HttpServletRequest request,SysUser user){
         request.getSession(true).setAttribute(SESSION_USER, user);
     }
     
     
     /**
      * 从session中获取用户信息
      * @param request
      * @return SysUser
      */
     public static SysUser getUser(HttpServletRequest request){
        return (SysUser)request.getSession(true).getAttribute(SESSION_USER);
     }
     
     
     /**
      * 从session中获取用户信息
      * @param request
      * @return SysUser
      */
     public static void removeUser(HttpServletRequest request){
        removeAttr(request, SESSION_USER);
     }
     
     
     /**
      * 设置验证码 到session
      * @param request
      * @param validateCode
      */
     public static void setValidateCode(HttpServletRequest request,String validateCode){
         request.getSession(true).setAttribute(SESSION_VALIDATECODE, validateCode);
     }
     
     
     /**
      * 从session中获取验证码
      * @param request
      * @return SysUser
      */
     public static String getValidateCode(HttpServletRequest request){
        return (String)request.getSession(true).getAttribute(SESSION_VALIDATECODE);
     }
     
     
     /**
      * 从session中获删除验证码
      * @param request
      * @return SysUser
      */
     public static void removeValidateCode(HttpServletRequest request){
        removeAttr(request, SESSION_VALIDATECODE);
     }
     
     /**
      * 判断当前登录用户是否超级管理员
      * @param request
      * @return
      */
     public static boolean isAdmin(HttpServletRequest request){ //判断登录用户是否超级管理员
         SysUser user =  getUser(request);
         if(user == null  || !SuperAdmin.YES.key.endsWith(user.getIsSuperAdmin())){
             return false;
         }
         return true;
     }
     
     /**
     *设置当前用户可以访问的urls
     * @param request
     * @param accessUrls
     */
    public static void setAccessUrl(HttpServletRequest request,List<String> accessUrls){ 
         setAttr(request, SESSION_ACCESS_URLS, accessUrls);
     }
     
     
     
     /**
      * 判断URL是否可访问
      * @param request
      * @return
      */
     public static boolean isAccessUrl(HttpServletRequest request,String url){ 
         List<String> accessUrls = (List)getAttr(request, SESSION_ACCESS_URLS);
         if(accessUrls == null ||accessUrls.isEmpty() || !accessUrls.contains(url)){
             return false;
         }
         return true;
     }
     
     
     /**
      * 设置菜单按钮
      * @param request
      * @param btnMap
      */
     public static void setMemuBtnMap(HttpServletRequest request,Map<String,Object> btnMap){ //判断登录用户是否超级管理员
         setAttr(request, SESSION_MENUBTN_MAP, btnMap);
     }
     
     /**
      * 获取菜单按钮
      * @param request
      * @param menuUri
      */
     public static List<String> getMemuBtnListVal(HttpServletRequest request,String menuUri){ 
         Map btnMap  = (Map)getAttr(request, SESSION_MENUBTN_MAP);
         if(btnMap == null || btnMap.isEmpty()){
             return null;
         }
         return (List<String>)btnMap.get(menuUri);
     }
    
}