def _logging_entry(self):
log_frame = "Entry: {{trade_id: {}, currency_pair: {}, action: {}," \
" amount: {}, entry_price: {}, entry_datetime: {}}}"
log_msg = log_frame.format(self.id_, self.currency_pair, self.action,
self.amount, self.entry_price,
self.entry_datetime)
trade_logger.info(log_msg,
extra={'strategyid': self._strategy_descriptor()})
def stop(self):
if self._status.is_stopped():
trade_logger.info('process already stopped',
extra={'strategyid': self._descriptor()})
return
self._status.to_stopped()
self._wake_up_and_next_loop()
def restart(self):
if self._status.is_running():
trade_logger.info('process already running',
extra={'strategyid': self._descriptor()})
return
self._status.to_running()
trade_logger.info('process restarted',
extra={'strategyid': self._descriptor()})
self._wake_up_and_next_loop()
def _main_loop(self, sec_wait):
try:
while self._status.is_alive():
self._status.wait_until_continuable()
if self._need_stop():
self.stop()
break
trade_logger.info('process running',
extra={'strategyid': self._descriptor()})
self._trading_routine()
self._sleep(sec_wait)
except Exception as e:
trade_logger.exception(e, extra={'strategyid': self._descriptor()})
trade_logger.error('exception occurred, process will stop',
extra={'strategyid': self._descriptor()})
self.stop()
finally:
trade_logger.info('process stopped',
extra={'strategyid': self._descriptor()})
def _logging_exit(self):
log_frame = "Exit: {{trade_id: {}, currency_pair: {}, exit_price: {}, exit_datetime: {}}}"
log_msg = log_frame.format(self.id_, self.currency_pair,
self.exit_price, self.exit_datetime)
trade_logger.info(log_msg,
extra={'strategyid': self._strategy_descriptor()})
def start(self, *, sec_wait=1):
self.started = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")
self._status.to_running()
trade_logger.info('process started',
extra={'strategyid': self._descriptor()})
self._main_loop(sec_wait=sec_wait)
def _need_stop(self):
if self.stop_rule is None:
return False
trade_logger.info('check stop',
extra={'strategyid': self._descriptor()})
return self.stop_rule.need_stop(self._trade)
def _check_exit(self):
trade_logger.info('check exit',
extra={'strategyid': self._descriptor()})
if self.exit_rule.can_exit(self._trade):
self._exit()
def _check_entry(self):
trade_logger.info('check entry',
extra={'strategyid': self._descriptor()})
if self.entry_rule.can_entry():
self._entry()