class Application:

	def start(self):
		self.before_start_internal()

		self._start_internal()

		self.before_stop_internal()

	def before_start_internal(self):
		pass
	
	def before_stop_internal(self):
		pass

	def _start_internal(self):
		pass

	def stop(self):
		self._stop_internal()

	def _stop_internal(self):
		exit(0)