//json parsing from file helper class

class helperClass
{

    class  func jsonParsingFromFile(pathToFile:NSString)-> NSArray
    {
        
        let data : NSData = try! NSData(contentsOfFile: pathToFile as String, options: NSDataReadingOptions.DataReadingMapped)
        
        let jsonResult: AnyObject = try! NSJSONSerialization.JSONObjectWithData(data, options:    NSJSONReadingOptions.MutableContainers)
        
        print(">>>>>>\(jsonResult)");
        
        let dict: NSArray! = jsonResult.valueForKey("deviceInfoList") as! NSArray
        
        print(">>>>dict>>\(dict.valueForKey("al_mac").objectAtIndex(0))");
        
        return dict
        
    }
}

main()
{

 let path: NSString = NSBundle.mainBundle().pathForResource("days", ofType: "json")!
            
 arrDict = helperClass.jsonParsingFromFile(path)

}