Resource resource = resourceSet.getResource(uri, true);
		resource.getContents().clear();
		resource.getContents().add(this.model);

		final Map<Object, Object> saveOptions = new HashMap<Object, Object>();

		try {
			String timeColonPattern = "HH:mm:ss SSS";
			DateTimeFormatter timeColonFormatter = DateTimeFormatter.ofPattern(timeColonPattern);
			LocalTime localTime = LocalTime.now();
			System.out.println("begin save :" + localTime.format(timeColonFormatter));
			resource.save(saveOptions);
			localTime = LocalTime.now();
			System.out.println("end save :" + localTime.format(timeColonFormatter));
		} catch (IOException e) {
			e.printStackTrace();
		}