@Override
    public String execute(HttpServletRequest request, HttpServletResponse response) throws IOException {
        HttpSession session = request.getSession();
        String email = request.getParameter("email");
        String password = request.getParameter("password");
        UserDto userDto;
        try {
             userDto = userService.login(email, password);
        } catch (IllegalArgumentException exception) {
            session.setAttribute("errorMsg", exception.getMessage());
            session.setAttribute("email", email);
            return PagesConstant.LOGIN_PAGE;
        }
        session.setAttribute("user", userDto);

        return PagesConstant.HOME_PAGE;
    }

  @Override
    public UserDto login(String email, String password) {
        UserDto user = findByEmail(email);
        if (emailValidation(email)) {
            throw new IllegalArgumentException("Email not correct");
        }
        if (email.equals(user.getEmail()) && password.equals(user.getPassword())) {
            user.setPassword(StringUtils.EMPTY);
            return user;
        } else {
            throw new IllegalArgumentException("Email or Password is not correct");
        }
    }

    private boolean emailValidation(String email) {
        String regExp = "^([a-z0-9_-]+\\.)*[a-z0-9_-]+@[a-z0-9_-]+(\\.[a-z0-9_-]+)*\\.[a-z]{2,6}$";
        return !email.matches(regExp);
    }