@RequestMapping(value = "/clearDB", method = RequestMethod.POST)
	public String clearDB(HttpServletRequest paramHttpServletRequest, RedirectAttributes redirectAttributes) {
		try {
			if (isAuthenticated(paramHttpServletRequest)) {
				imageService.removeAll();
				redirectAttributes.addAttribute("success", true);
			} else {
				throw new Exception();
			}			
		} catch (Exception e) {
			redirectAttributes.addAttribute("success", false);
		}
		return "redirect:/maintenance";
	}