def remove_algo_setting(self, setting_name: str):
""""""
if setting_name not in self.algo_settings:
return
self.algo_settings.pop(setting_name)
event = Event(EVENT_ALGO_SETTING)
event.data = {"setting_name": setting_name, "setting": None}
self.event_engine.put(event)
self.save_algo_setting()
def put_strategy_event(self, strategy: CtaTemplate):
"""
Put an event to update strategy status.
"""
data = strategy.get_data()
event = Event(EVENT_CTA_STRATEGY, data)
self.event_engine.put(event)
def write_log(self, msg: str, source: str = "") -> None:
"""
Put log event with specific message.
"""
log = LogData(msg=msg, gateway_name=source)
event = Event(EVENT_LOG, log)
self.event_engine.put(event)
def write_log(self, msg: str, algo: AlgoTemplate = None):
""""""
if algo:
msg = f"{algo.algo_name}：{msg}"
log = LogData(msg=msg, gateway_name=APP_NAME)
event = Event(EVENT_ALGO_LOG, data=log)
self.event_engine.put(event)
def write_log(self, msg: str, strategy: CtaTemplate = None):
"""
Create cta engine log event.
"""
if strategy:
msg = f"{strategy.strategy_name}: {msg}"
log = LogData(msg=msg, gateway_name=APP_NAME)
event = Event(type=EVENT_CTA_LOG, data=log)
self.event_engine.put(event)
def put_event(self):
""""""
tick_symbols = list(self.tick_recordings.keys())
tick_symbols.sort()
bar_symbols = list(self.bar_recordings.keys())
bar_symbols.sort()
data = {"tick": tick_symbols, "bar": bar_symbols}
event = Event(EVENT_RECORDER_UPDATE, data)
self.event_engine.put(event)
def _query_history(self, vt_symbol: str, interval: Interval,
start: datetime, end: datetime) -> None:
""""""
contract: ContractData = self.main_engine.get_contract(vt_symbol)
req = HistoryRequest(symbol=contract.symbol,
exchange=contract.exchange,
interval=interval,
start=start,
end=end)
if contract.history_data:
data = self.main_engine.query_history(req, contract.gateway_name)
event = Event(EVENT_CHART_HISTORY, data)
self.event_engine.put(event)
def process_order_event(self, event: Event):
""""""
order: OrderData = event.data
if order.vt_orderid not in self.active_orders:
return
if not order.is_active():
self.active_orders.remove(order.vt_orderid)
strategy: PortfolioStrategy = self.order_strategy_map[order.vt_orderid]
strategy_order = copy(order)
strategy_order.gateway_name = strategy.name
event = Event(EVENT_PORTFOLIO_ORDER, strategy_order)
self.event_engine.put(event)
def run_backtesting(self, class_name: str, vt_symbol: str, interval: str,
start: datetime, end: datetime, rate: float,
slippage: float, size: int, pricetick: float,
capital: int, inverse: bool, setting: dict):
""""""
self.result_df = None
self.result_statistics = None
engine = self.backtesting_engine
engine.clear_data()
engine.set_parameters(vt_symbol=vt_symbol,
interval=interval,
start=start,
end=end,
rate=rate,
slippage=slippage,
size=size,
pricetick=pricetick,
capital=capital,
inverse=inverse)
strategy_class = self.classes[class_name]
engine.add_strategy(strategy_class, setting)
engine.load_data()
try:
engine.run_backtesting()
except Exception:
msg = f"策略回测失败，触发异常：\n{traceback.format_exc()}"
self.write_log(msg)
self.thread = None
return
self.result_df = engine.calculate_result()
self.result_statistics = engine.calculate_statistics(output=False)
# Clear thread object handler.
self.thread = None
# Put backtesting done event
event = Event(EVENT_BACKTESTER_BACKTESTING_FINISHED)
self.event_engine.put(event)
def run_optimization(self, class_name: str, vt_symbol: str, interval: str,
start: datetime, end: datetime, rate: float,
slippage: float, size: int, pricetick: float,
capital: int, inverse: bool,
optimization_setting: OptimizationSetting,
use_ga: bool):
""""""
if use_ga:
self.write_log("开始遗传算法参数优化")
else:
self.write_log("开始多进程参数优化")
self.result_values = None
engine = self.backtesting_engine
engine.clear_data()
engine.set_parameters(vt_symbol=vt_symbol,
interval=interval,
start=start,
end=end,
rate=rate,
slippage=slippage,
size=size,
pricetick=pricetick,
capital=capital,
inverse=inverse)
strategy_class = self.classes[class_name]
engine.add_strategy(strategy_class, {})
if use_ga:
self.result_values = engine.run_ga_optimization(
optimization_setting, output=False)
else:
self.result_values = engine.run_optimization(optimization_setting,
output=False)
# Clear thread object handler.
self.thread = None
self.write_log("多进程参数优化完成")
# Put optimization done event
event = Event(EVENT_BACKTESTER_OPTIMIZATION_FINISHED)
self.event_engine.put(event)
def run(self):
""""""
while self.active:
try:
task = self.queue.get(timeout=1)
task_type, data = task
if task_type == "tick":
database_manager.save_tick_data([data])
elif task_type == "bar":
database_manager.save_bar_data([data])
except Empty:
continue
except Exception:
self.active = False
info = sys.exc_info()
event = Event(EVENT_RECORDER_EXCEPTION, info)
self.event_engine.put(event)
def process_trade_event(self, event: Event):
""""""
trade: TradeData = event.data
strategy: PortfolioStrategy = self.order_strategy_map.get(
trade.vt_orderid)
if strategy:
strategy.update_trade(
trade.direction,
trade.volume,
trade.price
)
self.put_strategy_event(strategy.name)
strategy_trade = copy(trade)
strategy_trade.gateway_name = strategy.name
event = Event(EVENT_PORTFOLIO_TRADE, strategy_trade)
self.event_engine.put(event)
self.save_setting()
def put_algo_event(self, algo: SpreadAlgoTemplate) -> None:
""""""
event = Event(EVENT_SPREAD_ALGO, algo)
self.event_engine.put(event)
def put_pos_event(self, spread: SpreadData) -> None:
""""""
event = Event(EVENT_SPREAD_POS, spread)
self.event_engine.put(event)
def put_data_event(self, spread: SpreadData) -> None:
""""""
event = Event(EVENT_SPREAD_DATA, spread)
self.event_engine.put(event)
def write_log(self, msg: str):
""""""
event = Event(EVENT_BACKTESTER_LOG)
event.data = msg
self.event_engine.put(event)
def put_variables_event(self, algo: AlgoTemplate, variables: dict):
""""""
event = Event(EVENT_ALGO_VARIABLES)
event.data = {"algo_name": algo.algo_name, "variables": variables}
self.event_engine.put(event)
def put_parameters_event(self, algo: AlgoTemplate, parameters: dict):
""""""
event = Event(EVENT_ALGO_PARAMETERS)
event.data = {"algo_name": algo.algo_name, "parameters": parameters}
self.event_engine.put(event)
def put_strategy_event(self, name: str):
""""""
strategy = self.strategies[name]
event = Event(EVENT_PORTFOLIO_UPDATE, strategy)
self.event_engine.put(event)
def put_setting_event(self, setting_name: str, setting: dict):
""""""
event = Event(EVENT_ALGO_SETTING)
event.data = {"setting_name": setting_name, "setting": setting}
self.event_engine.put(event)
def on_event(self, type: str, data: Any = None) -> None:
"""
General event push.
"""
event = Event(type, data)
self.event_engine.put(event)
def put_event(self, event_type: str, data: Any) -> None:
""""""
event = Event(event_type, data)
self.event_engine.put(event)
def write_log(self, msg: str):
""""""
log = LogData(msg=msg, gateway_name="RiskManager")
event = Event(type=EVENT_LOG, data=log)
self.event_engine.put(event)
def put_stop_order_event(self, stop_order: StopOrder):
"""
Put an event to update stop order status.
"""
event = Event(EVENT_CTA_STOPORDER, stop_order)
self.event_engine.put(event)
def write_log(self, msg: str):
""""""
log = LogData(msg=msg, gateway_name=APP_NAME)
event = Event(EVENT_SPREAD_LOG, log)
self.event_engine.put(event)
def put_strategy_event(self, strategy: SpreadStrategyTemplate):
""""""
data = strategy.get_data()
event = Event(EVENT_SPREAD_STRATEGY, data)
self.event_engine.put(event)
def write_log(self, msg: str):
""""""
event = Event(EVENT_RECORDER_LOG, msg)
self.event_engine.put(event)