def __init__(self, engine, code, parent=None):
"""Constructor"""
super().__init__()
LoggerInterface.__init__(self, parent=parent)
APIInterface.__init__(self)
Runnable.__init__(self)
ConfigInterface.__init__(self, parent=parent)
self.__id = self.next_auto_inc()
self.user = self.config.user
self.user_dir = UserDirectory(User(self.config.user))
self.__strategy_code = StrategyCode(self.config.name, code)
self.__code_parser = None
self.engine = proxy(engine)
self.time_frame = self.config.time_frame
self.symbols = self.config.symbols
self.start_time = self.config.start_time
self.end_time = self.config.end_time
self.capital_base = self.config.capital_base
self.handlers = {}
self.signal_factory = SignalFactory()
self.signals = {}
self.system_functions = {}
self.series_storage = {}
self.printer = FilePrinter(self.config.user, self.config.name,
self.engine)
self.__context = {}
self._setting()
self.logger_name = "Strategy"
def __init__(self,
engine,
user,
name,
code,
symbols=None,
time_frame=None,
start_time=None,
end_time=None):
"""Constructor"""
self.__id = self.next_auto_inc()
self.user = user
self.user_dir = UserDirectory(user)
self.name = name
self.code = code
self.engine = engine
self.time_frame = time_frame
self.symbols = symbols
self.start_time = start_time
self.end_time = end_time
self.max_length = 0
self.capital_base = 100000
self.handlers = {}
self.listeners = {}
self.system_functions = {}
self.series_storage = {}
self.__printer = FilePrinter(user, name, self.engine)
self.__context = {}
# 是否完成了初始化
self.trading = False
# 在字典中保存Open,High,Low,Close,Volumn，CurrentBar，MarketPosition，
# 手动为exec语句提供local命名空间
self.__locals_ = dict(
sell=partial(self.engine.sell, strategy=self.__id),
short=partial(self.engine.short, strategy=self.__id),
buy=partial(self.engine.buy, strategy=self.__id),
cover=partial(self.engine.cover, strategy=self.__id),
marketposition=self.engine.get_current_positions(),
currentcontracts=self.engine.get_current_contracts(),
data=self.engine.get_data,
context=self.__context,
export=partial(export, strategy=self),
put=self.put_context,
get=self.get_context,
print=self.__printer.print,
listeners=self.listeners,
system_functions=self.system_functions,
)
# 将策略容器与对应代码文件关联
self.bind_code_to_strategy(self.code)
def __init__(self, engine, code, parent=None):
"""Constructor"""
super().__init__()
LoggerInterface.__init__(self, parent=parent)
APIInterface.__init__(self)
Runnable.__init__(self)
ConfigInterface.__init__(self, parent=parent)
self.__id = self.next_auto_inc()
self.user = self.config.user
self.user_dir = UserDirectory(User(self.config.user))
self.__strategy_code = StrategyCode(self.config.name, code)
self.__code_parser = None
self.engine = proxy(engine)
self.time_frame = self.config.time_frame
self.symbols = self.config.symbols
self.start_time = self.config.start_time
self.end_time = self.config.end_time
self.capital_base = self.config.capital_base
self.handlers = {}
self.signal_factory = SignalFactory()
self.signals = {}
self.system_functions = {}
self.series_storage = {}
self.printer = FilePrinter(self.config.user, self.config.name, self.engine)
self.__context = {}
self._setting()
self.logger_name = "Strategy"
def __init__(self, engine, user=None, name=None, code=None, symbols=None, time_frame=None, start_time=None,
end_time=None, logger=None, **kwargs):
"""Constructor"""
super().__init__()
self.__id = self.next_auto_inc()
self.user = user
self.user_dir = UserDirectory(User(user))
self.name = name
self.code = code
self.engine = proxy(engine)
self.time_frame = time_frame
self.symbols = symbols
self.start_time = start_time
self.end_time = end_time
if logger:
self._logger = logger
else:
pass # TODO 默认的日志行为
self.max_length = 0
self.capital_base = 100000
self.handlers = {}
self.signal_factory = SignalFactory()
self.signals = {}
self.system_functions = {}
self.series_storage = {}
self.__logger = logger
self.__printer = FilePrinter(user, name, self.engine)
self.__context = {}
self.__points = {}
# 是否完成了初始化
self.trading = False
# 在字典中保存Open,High,Low,Close,Volumn，CurrentBar，MarketPosition，
# 手动为exec语句提供globals命名空间
self.__glb = {'Buy': partial(self.engine.open_position, strategy=self.__id, direction=1),
'Sell': partial(self.engine.close_position, strategy=self.__id, direction=1),
'SellShort': partial(self.engine.open_position, strategy=self.__id, direction=-1),
'BuyToCover': partial(self.engine.close_position, strategy=self.__id, direction=-1),
'Positions': self.engine.current_positions, 'Data': self.engine.data,
'Context': self.__context, 'Export': partial(export, strategy=self), 'Put': self.put_context,
'Get': self.get_context, 'print': self.__printer.print,
'Points': self.__points, 'Cap': self.engine.get_capital(),
'signals': self.signals, 'system_functions': self.system_functions}
# 将策略容器与对应代码文件关联
self.bind_code_to_strategy(self.code)
class Strategy(LoggerInterface, HasID):
ATTR_MAP = dict(TimeFrame="time_frame", Base="capital_base", Symbols="symbols", StartTime="start_time",
EndTime="end_time", MaxLen="max_length")
API_FUNCTION = ['Buy', 'Sell', 'SellShort', 'BuyToCover', 'Export'] + get_sys_func_list()
API_VARIABLES = ['O', 'Open', 'Opens', 'H', 'High', 'Highs', 'L', 'Low', 'Lows', 'C', 'Close', 'Closes',
'Datetime', 'Datetimes', 'D', 'Timestamp', 'Timestamps', 'T', 'Volume', 'Volumes', 'V', 'Symbols',
'Symbol', 'BarNum', 'MarketPosition', 'Positions', 'Pos', 'CurrentContracts', 'Point']
# ----------------------------------------------------------------------
def __init__(self, engine, user=None, name=None, code=None, symbols=None, time_frame=None, start_time=None,
end_time=None, logger=None, **kwargs):
"""Constructor"""
super().__init__()
self.__id = self.next_auto_inc()
self.user = user
self.user_dir = UserDirectory(User(user))
self.name = name
self.code = code
self.engine = proxy(engine)
self.time_frame = time_frame
self.symbols = symbols
self.start_time = start_time
self.end_time = end_time
if logger:
self._logger = logger
else:
pass # TODO 默认的日志行为
self.max_length = 0
self.capital_base = 100000
self.handlers = {}
self.signal_factory = SignalFactory()
self.signals = {}
self.system_functions = {}
self.series_storage = {}
self.__logger = logger
self.__printer = FilePrinter(user, name, self.engine)
self.__context = {}
self.__points = {}
# 是否完成了初始化
self.trading = False
# 在字典中保存Open,High,Low,Close,Volumn，CurrentBar，MarketPosition，
# 手动为exec语句提供globals命名空间
self.__glb = {'Buy': partial(self.engine.open_position, strategy=self.__id, direction=1),
'Sell': partial(self.engine.close_position, strategy=self.__id, direction=1),
'SellShort': partial(self.engine.open_position, strategy=self.__id, direction=-1),
'BuyToCover': partial(self.engine.close_position, strategy=self.__id, direction=-1),
'Positions': self.engine.current_positions, 'Data': self.engine.data,
'Context': self.__context, 'Export': partial(export, strategy=self), 'Put': self.put_context,
'Get': self.get_context, 'print': self.__printer.print,
'Points': self.__points, 'Cap': self.engine.get_capital(),
'signals': self.signals, 'system_functions': self.system_functions}
# 将策略容器与对应代码文件关联
self.bind_code_to_strategy(self.code)
# -----------------------------------------------------------------------
@staticmethod
def open(*args, **kwargs):
raise RuntimeError('open函数已被禁用')
# -----------------------------------------------------------------------
def get_output(self):
with open(self.__printer.get_path()) as f:
content = f.read()
f.close()
return content
# ----------------------------------------------------------------------
def get_parameters(self):
return {key: value.get_parameters() for key, value in self.signals.items()}
# ----------------------------------------------------------------------
def set_parameters(self, parameters):
for handle, paras in parameters.items():
self.signals[handle].set_parameters(**paras)
# ----------------------------------------------------------------------
def get_id(self):
return self.__id
# ----------------------------------------------------------------------
def put_context(self, **kwargs):
for key, value in kwargs.items():
self.__context[key] = value
# ----------------------------------------------------------------------
def get_context(self, key):
return self.__context[key]
# ----------------------------------------------------------------------
def initialize(self):
self.__context.clear()
self.series_storage.clear()
# ----------------------------------------------------------------------
# 将策略容器与策略代码关联
def bind_code_to_strategy(self, code):
def get_parameter_default(paras, name, check, default, pop=True):
if pop:
para = paras.pop(name, None)
else:
para = paras.get(name, None)
if para:
temp = para.default
if temp == inspect._empty:
# TODO未给定值的处理
return default
elif check(temp):
return temp
else:
raise KeyError("变量%s所赋值不合法", name)
else:
return default
def get_global_attrs(locals_):
for name, attr in self.ATTR_MAP.items():
if getattr(self, attr) is None:
setattr(self, attr, locals_.get(name))
def set_global_attrs(globals_):
for name, attr in self.ATTR_MAP.items():
value = getattr(self, attr)
if value is not None:
globals_[name] = value
else:
pass
def upper_first_letter(string):
return string[0].upper() + string[1:]
# get the system functions in use
ast_ = ast.parse(code)
import_inspector = ImportInspector()
import_inspector.visit(ast_) # 模块导入检查
signal_locals_ = {}
function_locals = {}
signal_globals_ = {'open': self.open} # 可动态管理的全策略命名空间,禁用open
function_globals_ = {'open': self.open} # 可动态管理的系统函数命名空间,禁用open
# 获取并检查一些全局变量的设定
exec(compile(code, "[Strategy:%s]" % self.name, mode="exec"), signal_globals_, signal_locals_)
# get_global_attrs(signal_locals_) # 弃用，暂时保留以便向下兼容
set_global_attrs(signal_globals_)
set_global_attrs(function_globals_)
signal_globals_.update(signal_locals_)
signal_globals_.update(self.__glb)
function_globals_.update(self.__glb)
self.engine.set_capital_base(self.capital_base)
self.engine.start_time = self.start_time
self.engine.end_time = self.end_time
check_time_frame(self.time_frame)
sys_func_detector = SystemFunctionsDetector()
sys_func_detector.visit(ast_)
sys_func_dir = self.user_dir.get_sys_func_dir()
funcs_in_use = sys_func_detector.get_funcs_in_use()
# get the instructions to inject to every handle
signal_to_inject_init = {}
function_to_inject_init = {}
signal_to_inject_loop = {}
function_to_inject_loop = {}
code_lines = ["import functools", "__globals = globals()"]
code_lines.extend(["{0} = __globals['{0}']".format(key) for key in self.__glb.keys()
if key not in ["Sell", "Buy", "SellShort", "BuyToCover"]])
# init中可以设定全局变量，所以要以"global foo"的方式进行注入。
if inspect.isfunction(signal_locals_.get('init', None)):
init_transformer = InitTransformer()
init_transformer.visit(ast_)
# XXX 必须要一个module node作为根节点。
exec(compile(wrap_with_module(init_transformer.init_node), "[Strategy:%s]" % self.name, mode="exec"),
signal_globals_, signal_locals_)
self.handlers['init'] = signal_locals_['init']
# 执行init并记录locals，之后注入信号
init_globals = self.handlers['init']()
signal_globals_.update(init_globals)
init_to_inject_init = ["{0} = __globals['{0}']".format(key) for key in init_globals.keys()]
else:
init_to_inject_init = []
for key, value in signal_locals_.items():
if inspect.isfunction(value):
if key == "init":
continue
paras = inspect.signature(value).parameters.copy() # 获取handler函数的参数列表
is_handle = get_parameter_default(paras, "IsHandle", lambda x: isinstance(x, bool), True)
if not is_handle:
continue
custom = get_parameter_default(paras, "Custom", lambda x: isinstance(x, bool), False)
if not custom:
# TODO加入真正的验证方法
# 转化为tuple是因为symbols要那来当做字典的键
symbols = tuple(get_parameter_default(paras, "Symbols", lambda x: True, self.symbols))
time_frame = get_parameter_default(paras, "TimeFrame", check_time_frame, self.time_frame)
max_length = get_parameter_default(paras, "MaxLen", lambda x: isinstance(x, int) and (x > 0),
self.max_length)
self.engine.add_cache_info(symbols, time_frame, max_length)
self.signals[key] = self.signal_factory.new(self.engine, self.user, self.name, key, symbols,
time_frame)
additional_instructions = ["{0} = system_functions['%s.%s'%('{1}','{0}')]".format(f, key)
for f, s in funcs_in_use.items() if key in s] + ['del(system_functions)']
temp = []
# Begin open,high,low,close相关变量的注入
quotes = ["open", "high", "low", "close", "datetime", "timestamp", "volume"]
temp.extend(["{0} = __globals['Data']['{1}']['{3}']['{2}']"
.format(upper_first_letter(field), time_frame, symbols[0], field)
for field in quotes])
temp.extend(["{0} = __globals['Data']['{1}']['{3}']['{2}']"
.format(field[0].upper(), time_frame, symbols[0], field)
for field in quotes])
temp.extend(["{0}s = __globals['Data']['{1}']['{2}']"
.format(upper_first_letter(field), time_frame, field)
for field in quotes])
# end
# get_current_bar 函数的注入，BarNum实际通过该函数维护
temp.append("{0} = __globals['signals']['{1}'].{0}".format('get_current_bar', key))
temp.append("Symbol = Symbols[0]") # Symbol注入
temp.append("Point=Points[Symbol]") # Points注入
function_to_inject_init[key] = code_lines + temp + ["del(functools)", "del(__globals)"] + \
additional_instructions
temp.extend(["{0} = functools.partial(__globals['{0}'],signal='{1}')".format(
field, key)
for field in ["Sell", "Buy", "SellShort", "BuyToCover"]])
# TODO 现在是将init中的变量当做局部变量注入每个信号的初始化部分，其实这样并不等同于全局变量的概念，
# 只不过对于单个信号的策略是一样的。
signal_to_inject_init[key] = code_lines + temp + init_to_inject_init + \
["del(functools)", "del(__globals)"] + additional_instructions
# 信号与函数中相比多出的就是交易指令
signal_to_inject_loop[key] = ["BarNum = get_current_bar()",
"Pos = Positions[Symbol]",
"MarketPosition = Pos.type",
"CurrentContracts= Pos.volume"]
function_to_inject_loop[key] = signal_to_inject_loop[key]
else:
# TODO自定义事件处理
pass
for para_name in paras.keys():
# TODO加入类型检测
default = get_parameter_default(paras, para_name, lambda x: True, None,
pop=False)
if default is None:
raise ValueError('参数%s未指定初始值' % para_name)
elif not isinstance(default, (int, float)):
raise ValueError('参数%s的值必须为整数或浮点数' % para_name)
self.signals[key].add_parameters(para_name, default)
self.__points.update({key: value.point for key, value in self.engine.symbol_pool.items()})
series_exporter = SeriesExporter() # deal with the export syntax
# export the system functions in use
for func, signals in funcs_in_use.items():
for signal in signals:
fullname = os.path.join(sys_func_dir, func + ".py")
with codecs.open(fullname, "r", "utf-8") as f:
func_ast = ast.parse(f.read())
f.close()
import_inspector.visit(func_ast) # 检查模块导入
function_injector = LocalsInjector({func: function_to_inject_init[signal]},
{func: function_to_inject_loop[signal]})
function_injector.visit(func_ast)
func_ast = series_exporter.visit(func_ast)
# TODO 多个handle时需要对每个handle调用的系统函数建立独立的系统函数
exec(compile(func_ast, "[SysFunctions:%s]" % func, mode="exec"), function_globals_, function_locals)
self.system_functions['%s.%s' % (signal, func)] = SeriesFunction(function_locals[func], signal)
# new方法是对__init__的封装，创建SeriesFunction对象所需信息有其所在的函数体本身，signal和其运行时传入的参数，
# 编译时所能确定的只有前者，采用偏函数的方式将两者结合到一起
# inject global vars into locals of handler
signal_injector = LocalsInjector(signal_to_inject_init, signal_to_inject_loop)
signal_injector.visit(ast_)
ast_ = series_exporter.visit(ast_)
exec(compile(ast_, "[Strategy:%s]" % self.name, mode="exec"), signal_globals_, signal_locals_)
for key in signal_to_inject_init.keys():
self.signals[key].set_generator(signal_locals_[key])
self.log("<%s>策略添加成功" % self.name, logging.INFO)
return True
# ----------------------------------------------------------------------
def start(self):
"""
启动交易
这里是最简单的改变self.trading
有需要可以重新实现更复杂的操作
"""
self.trading = True
self.initialize()
for listener in self.signals.values():
listener.start()
for function in self.system_functions.values():
function.start()
self.__printer.start()
self.log("<%s>策略开始运行" % self.name, logging.INFO)
# ----------------------------------------------------------------------
def stop(self):
"""
停止交易
同上
"""
self.trading = False
for listener in self.signals.values():
listener.stop()
for function in self.system_functions.values():
function.stop()
self.__printer.stop()
self.log("<%s>策略停止运行" % self.name, logging.INFO)
class Strategy(HasID, LoggerInterface, APIInterface, Runnable, ConfigInterface):
API_FUNCTION = ["Buy", "Sell", "SellShort", "BuyToCover", "Export"] + get_sys_func_list()
API_VARIABLES = ["O", "Open", "Opens", "H", "High", "Highs", "L", "Low", "Lows", "C", "Close", "Closes",
"Datetime", "Datetimes", "D", "Timestamp", "Timestamps", "T", "Volume", "Volumes", "V",
"Symbols", "Symbol", "BarNum", "MarketPosition", "Positions", "Pos", "Cap",
"CurrentContracts", "Point", "TimeFrame", "Symbols", "StartTime", "MaxLen", "EndTime"]
def __init__(self, engine, code, parent=None):
"""Constructor"""
super().__init__()
LoggerInterface.__init__(self, parent=parent)
APIInterface.__init__(self)
Runnable.__init__(self)
ConfigInterface.__init__(self, parent=parent)
self.__id = self.next_auto_inc()
self.user = self.config.user
self.user_dir = UserDirectory(User(self.config.user))
self.__strategy_code = StrategyCode(self.config.name, code)
self.__code_parser = None
self.engine = proxy(engine)
self.time_frame = self.config.time_frame
self.symbols = self.config.symbols
self.start_time = self.config.start_time
self.end_time = self.config.end_time
self.capital_base = self.config.capital_base
self.handlers = {}
self.signal_factory = SignalFactory()
self.signals = {}
self.system_functions = {}
self.series_storage = {}
self.printer = FilePrinter(self.config.user, self.config.name, self.engine)
self.__context = {}
self._setting()
self.logger_name = "Strategy"
# 将策略容器与对应代码文件关联
@staticmethod
def open(*args, **kwargs):
raise RuntimeError("open函数已被禁用")
def get_output(self):
with open(self.printer.get_path()) as f:
content = f.read()
f.close()
return content
def get_parameters(self):
return {key: value.get_parameters() for key, value in self.signals.items()}
def set_parameters(self, parameters):
for handle, paras in parameters.items():
self.signals[handle].set_parameters(**paras)
def get_id(self):
return self.__id
def put_context(self, **kwargs):
for key, value in kwargs.items():
self.__context[key] = value
def get_context(self, key):
return self.__context[key]
def _get_system_func_ast(self, func):
path = os.path.join(self.user_dir.get_sys_func_dir(), func + ".py")
with codecs.open(path, "r", "utf-8") as f:
func_ast = find_func_in_module(func, ast.parse(f.read()))
f.close()
return func_ast
def _setting(self):
# parse the strategy
self.__code_parser = CodeParser(self.__strategy_code, self)
for signal in self.__code_parser.signals:
setting = self.__code_parser.get_signal_setting(signal)
self.engine.add_cache_info(setting.symbols, setting.time_frame, setting.max_len)
self.signals[signal] = self.signal_factory.new(self.engine, self.user, self.__strategy_code.name, signal,
setting.symbols, setting.time_frame, parent=self)
def _init(self):
# check the import
import_inspector = ImportInspector()
import_inspector.visit(self.__code_parser.ast_root) # 模块导入检查
# get the system functions in use
for signal in self.__code_parser.signals:
sys_func_detector = SystemFunctionsDetector()
sys_func_detector.visit(self.__code_parser.get_signal_ast(signal))
environment = Environment()
for func in sys_func_detector.get_funcs_in_use():
environment.add_system_function(func, SeriesFunction(signal=signal))
setting = self.__code_parser.get_signal_setting(signal)
environment.update(self.__code_parser.globals)
environment.update(self.get_APIs(setting.symbols, setting.time_frame))
environment.update(self.engine.get_APIs(self.get_id(), signal, setting.symbols, setting.time_frame))
environment.update(self.signals[signal].get_APIs())
self.signals[signal].environment = environment
setter = EnvironmentSetter(environment, parent=self)
series_exporter = SeriesExporter()
for func in sys_func_detector.get_funcs_in_use():
func_ast = self._get_system_func_ast(func)
func_ast = series_exporter.visit(func_ast)
function = environment.get_system_function(func)
function.set_generator(setter.get_func_within_environment(func_ast, allow_trading=False))
signal_ast = self.__code_parser.get_signal_ast(signal)
signal_ast = series_exporter.visit(signal_ast)
signal_ast = TradingCommandsTransformer().visit(signal_ast) # 给买卖语句表上行列号
signal_func = setter.get_func_within_environment(signal_ast, allow_trading=False)
self.signals[signal].set_generator(signal_func)
self.logger.info("<%s>策略添加成功" % self.__strategy_code.name)
def _recycle(self):
self.__context.clear()
self.series_storage.clear()
def _start(self):
"""
启动交易
"""
self._init()
for signal in self.signals.values():
signal.start()
for function in self.system_functions.values():
function.start()
self.printer.start()
self.logger.info("<%s>策略开始运行" % self.__strategy_code.name)
def _stop(self):
"""
停止交易
同上
"""
for signal in self.signals.values():
signal.stop()
for function in self.system_functions.values():
function.stop()
self.printer.stop()
self._recycle()
self.logger.info("<%s>策略停止运行" % self.__strategy_code.name)
def get_APIs(self, symbols=None, time_frame=None) -> Globals:
temp = {
"Symbols": symbols, "TimeFrame": time_frame, "Symbol": symbols[0], "StartTime": self.start_time,
"EndTime": self.end_time,
"Context": self.__context, "Export": partial(export, strategy=self), "Put": self.put_context,
"Get": self.get_context, "print": self.printer.print, "open": self.open,
"signals": self.signals, "system_functions": self.system_functions}
return Globals(temp, {})
def __init__(self,
engine,
user,
name,
code,
symbols=None,
time_frame=None,
start_time=None,
end_time=None):
"""Constructor"""
self.__id = self.next_auto_inc()
self.user = user
self.user_dir = UserDirectory(user)
self.name = name
self.code = code
self.engine = proxy(engine)
self.time_frame = time_frame
self.symbols = symbols
self.start_time = start_time
self.end_time = end_time
self.max_length = 0
self.capital_base = 100000
self.handlers = {}
self.signal_factory = SignalFactory()
self.signals = {}
self.system_functions = {}
self.series_storage = {}
self.__printer = FilePrinter(user, name, self.engine)
self.__context = {}
self.__points = {}
# 是否完成了初始化
self.trading = False
# 在字典中保存Open,High,Low,Close,Volumn，CurrentBar，MarketPosition，
# 手动为exec语句提供globals命名空间
self.__glb = {
'Buy':
partial(self.engine.open_position, strategy=self.__id,
direction=1),
'Sell':
partial(self.engine.close_position,
strategy=self.__id,
direction=1),
'SellShort':
partial(self.engine.open_position,
strategy=self.__id,
direction=-1),
'BuyToCover':
partial(self.engine.close_position,
strategy=self.__id,
direction=-1),
'Positions':
self.engine.current_positions,
'Data':
self.engine.data,
'Context':
self.__context,
'Export':
partial(export, strategy=self),
'Put':
self.put_context,
'Get':
self.get_context,
'print':
self.__printer.print,
'Points':
self.__points,
'signals':
self.signals,
'system_functions':
self.system_functions
}
# 将策略容器与对应代码文件关联
self.bind_code_to_strategy(self.code)
class Strategy(HasID):
ATTR_MAP = dict(TimeFrame="time_frame",
Base="capital_base",
Symbols="symbols",
StartTime="start_time",
EndTime="end_time",
MaxLen="max_length")
API_FUNCTION = ['Buy', 'Sell', 'SellShort', 'BuyToCover', 'Export'
] + get_sys_func_list()
API_VARIABLES = [
'O', 'Open', 'Opens', 'H', 'High', 'Highs', 'L', 'Low', 'Lows', 'C',
'Close', 'Closes', 'Datetime', 'Datetimes', 'D', 'Timestamp',
'Timestamps', 'T', 'Volume', 'Volumes', 'V', 'Symbols', 'Symbol',
'BarNum', 'MarketPosition', 'Positions', 'Pos', 'CurrentContracts',
'Point'
]
# ----------------------------------------------------------------------
def __init__(self,
engine,
user,
name,
code,
symbols=None,
time_frame=None,
start_time=None,
end_time=None):
"""Constructor"""
self.__id = self.next_auto_inc()
self.user = user
self.user_dir = UserDirectory(user)
self.name = name
self.code = code
self.engine = proxy(engine)
self.time_frame = time_frame
self.symbols = symbols
self.start_time = start_time
self.end_time = end_time
self.max_length = 0
self.capital_base = 100000
self.handlers = {}
self.signal_factory = SignalFactory()
self.signals = {}
self.system_functions = {}
self.series_storage = {}
self.__printer = FilePrinter(user, name, self.engine)
self.__context = {}
self.__points = {}
# 是否完成了初始化
self.trading = False
# 在字典中保存Open,High,Low,Close,Volumn，CurrentBar，MarketPosition，
# 手动为exec语句提供globals命名空间
self.__glb = {
'Buy':
partial(self.engine.open_position, strategy=self.__id,
direction=1),
'Sell':
partial(self.engine.close_position,
strategy=self.__id,
direction=1),
'SellShort':
partial(self.engine.open_position,
strategy=self.__id,
direction=-1),
'BuyToCover':
partial(self.engine.close_position,
strategy=self.__id,
direction=-1),
'Positions':
self.engine.current_positions,
'Data':
self.engine.data,
'Context':
self.__context,
'Export':
partial(export, strategy=self),
'Put':
self.put_context,
'Get':
self.get_context,
'print':
self.__printer.print,
'Points':
self.__points,
'signals':
self.signals,
'system_functions':
self.system_functions
}
# 将策略容器与对应代码文件关联
self.bind_code_to_strategy(self.code)
# -----------------------------------------------------------------------
@staticmethod
def open(*args, **kwargs):
raise RuntimeError('open函数已被禁用')
# -----------------------------------------------------------------------
def get_output(self):
with open(self.__printer.get_path()) as f:
content = f.read()
f.close()
return content
# ----------------------------------------------------------------------
def get_parameters(self):
return {
key: value.get_parameters()
for key, value in self.signals.items()
}
# ----------------------------------------------------------------------
def set_parameters(self, parameters):
for handle, paras in parameters.items():
self.signals[handle].set_parameters(**paras)
# ----------------------------------------------------------------------
def get_id(self):
return self.__id
# ----------------------------------------------------------------------
def put_context(self, **kwargs):
for key, value in kwargs.items():
self.__context[key] = value
# ----------------------------------------------------------------------
def get_context(self, key):
return self.__context[key]
# ----------------------------------------------------------------------
def initialize(self):
self.__context.clear()
self.series_storage.clear()
# ----------------------------------------------------------------------
# 将策略容器与策略代码关联
def bind_code_to_strategy(self, code):
def get_parameter_default(paras, name, check, default, pop=True):
if pop:
para = paras.pop(name, None)
else:
para = paras.get(name, None)
if para:
temp = para.default
if temp == inspect._empty:
# TODO未给定值的处理
return default
elif check(temp):
return temp
else:
raise KeyError("变量%s所赋值不合法", name)
else:
return default
def get_global_attrs(locals_):
for name, attr in self.ATTR_MAP.items():
if getattr(self, attr) is None:
setattr(self, attr, locals_.get(name))
def set_global_attrs(globals_):
for name, attr in self.ATTR_MAP.items():
value = getattr(self, attr)
if value is not None:
globals_[name] = value
else:
raise ValueError('全局变量%s未被赋值' % name)
def upper_first_letter(string):
return string[0].upper() + string[1:]
# get the system functions in use
ast_ = ast.parse(code)
import_inspector = ImportInspector()
import_inspector.visit(ast_) # 模块导入检查
signal_locals_ = {}
function_locals = {}
signal_globals_ = {'open': self.open} # 可动态管理的全策略命名空间,禁用open
function_globals_ = {'open': self.open} # 可动态管理的系统函数命名空间,禁用open
# 获取并检查一些全局变量的设定
exec(compile(code, "[Strategy:%s]" % self.name, mode="exec"),
signal_globals_, signal_locals_)
get_global_attrs(signal_locals_) # 弃用，暂时保留以便向下兼容
set_global_attrs(signal_globals_)
set_global_attrs(function_globals_)
signal_globals_.update(signal_locals_)
signal_globals_.update(self.__glb)
function_globals_.update(self.__glb)
self.engine.set_capital_base(self.capital_base)
self.engine.start_time = self.start_time
self.engine.end_time = self.end_time
check_time_frame(self.time_frame)
sys_func_detector = SystemFunctionsDetector()
sys_func_detector.visit(ast_)
sys_func_dir = self.user_dir.get_sys_func_dir()
funcs_in_use = sys_func_detector.get_funcs_in_use()
# get the instructions to inject to every handle
signal_to_inject_init = {}
function_to_inject_init = {}
signal_to_inject_loop = {}
function_to_inject_loop = {}
code_lines = ["import functools", "__globals = globals()"]
code_lines.extend([
"{0} = __globals['{0}']".format(key) for key in self.__glb.keys()
if key not in ["Sell", "Buy", "SellShort", "BuyToCover"]
])
# init中可以设定全局变量，所以要以"global foo"的方式进行注入。
if inspect.isfunction(signal_locals_.get('init', None)):
init_transformer = InitTransformer()
init_transformer.visit(ast_)
# XXX 必须要一个module node作为根节点。
exec(
compile(wrap_with_module(init_transformer.init_node),
"[Strategy:%s]" % self.name,
mode="exec"), signal_globals_, signal_locals_)
self.handlers['init'] = signal_locals_['init']
# 执行init并记录locals，之后注入信号
init_globals = self.handlers['init']()
signal_globals_.update(init_globals)
init_to_inject_init = [
"{0} = __globals['{0}']".format(key)
for key in init_globals.keys()
]
else:
init_to_inject_init = []
for key, value in signal_locals_.items():
if inspect.isfunction(value):
if key == "init":
continue
paras = inspect.signature(
value).parameters.copy() # 获取handler函数的参数列表
is_handle = get_parameter_default(
paras, "IsHandle", lambda x: isinstance(x, bool), True)
if not is_handle:
continue
custom = get_parameter_default(paras, "Custom",
lambda x: isinstance(x, bool),
False)
if not custom:
# TODO加入真正的验证方法
# 转化为tuple是为了去掉重复，而且symbols要那来当做字典的键
symbols = tuple(
get_parameter_default(paras, "Symbols", lambda x: True,
self.symbols))
time_frame = get_parameter_default(paras, "TimeFrame",
check_time_frame,
self.time_frame)
max_length = get_parameter_default(
paras, "MaxLen",
lambda x: isinstance(x, int) and (x > 0),
self.max_length)
self.engine.add_cache_info(symbols, time_frame, max_length)
self.signals[key] = self.signal_factory.new(
self.engine, self.user, self.name, key, symbols,
time_frame)
additional_instructions = [
"{0} = system_functions['%s.%s'%('{1}','{0}')]".format(
f, key)
for f, s in funcs_in_use.items() if key in s
] + ['del(system_functions)']
temp = []
# Begin open,high,low,close相关变量的注入
quotes = [
"open", "high", "low", "close", "datetime",
"timestamp", "volume"
]
temp.extend([
"{0} = __globals['Data']['{1}']['{3}']['{2}']".format(
upper_first_letter(field), time_frame, symbols[0],
field) for field in quotes
])
temp.extend([
"{0} = __globals['Data']['{1}']['{3}']['{2}']".format(
field[0].upper(), time_frame, symbols[0], field)
for field in quotes
])
temp.extend([
"{0}s = __globals['Data']['{1}']['{2}']".format(
upper_first_letter(field), time_frame, field)
for field in quotes
])
# end
# get_current_bar 函数的注入，BarNum实际通过该函数维护
temp.append("{0} = __globals['signals']['{1}'].{0}".format(
'get_current_bar', key))
temp.append("Symbol = Symbols[0]") # Symbol注入
temp.append("Point=Points[Symbol]") # Points注入
function_to_inject_init[key] = code_lines + temp + ["del(functools)", "del(__globals)"] + \
additional_instructions
temp.extend([
"{0} = functools.partial(__globals['{0}'],signal='{1}')"
.format(field, key) for field in
["Sell", "Buy", "SellShort", "BuyToCover"]
])
# TODO 现在是将init中的变量当做局部变量注入每个信号的初始化部分，其实这样并不等同于全局变量的概念，
# 只不过对于单个信号的策略是一样的。
signal_to_inject_init[key] = code_lines + temp + init_to_inject_init + \
["del(functools)", "del(__globals)"] + additional_instructions
# 信号与函数中相比多出的就是交易指令
signal_to_inject_loop[key] = [
"BarNum = get_current_bar()",
"Pos = Positions[Symbol]", "MarketPosition = Pos.type",
"CurrentContracts= Pos.volume"
]
function_to_inject_loop[key] = signal_to_inject_loop[key]
else:
# TODO自定义事件处理
pass
for para_name in paras.keys():
# TODO加入类型检测
default = get_parameter_default(paras,
para_name,
lambda x: True,
None,
pop=False)
if default is None:
raise ValueError('参数%s未指定初始值' % para_name)
elif not isinstance(default, (int, float)):
raise ValueError('参数%s的值必须为整数或浮点数' % para_name)
self.signals[key].add_parameters(para_name, default)
self.__points.update({
key: value.point
for key, value in self.engine.symbol_pool.items()
})
series_exporter = SeriesExporter() # deal with the export syntax
# export the system functions in use
for func, signals in funcs_in_use.items():
for signal in signals:
fullname = os.path.join(sys_func_dir, func + ".py")
with codecs.open(fullname, "r", "utf-8") as f:
func_ast = ast.parse(f.read())
f.close()
import_inspector.visit(func_ast) # 检查模块导入
function_injector = LocalsInjector(
{func: function_to_inject_init[signal]},
{func: function_to_inject_loop[signal]})
function_injector.visit(func_ast)
func_ast = series_exporter.visit(func_ast)
# TODO 多个handle时需要对每个handle调用的系统函数建立独立的系统函数
exec(
compile(func_ast, "[SysFunctions:%s]" % func, mode="exec"),
function_globals_, function_locals)
self.system_functions['%s.%s' %
(signal, func)] = SeriesFunction(
function_locals[func], signal)
# new方法是对__init__的封装，创建SeriesFunction对象所需信息有其所在的函数体本身，signal和其运行时传入的参数，
# 编译时所能确定的只有前者，采用偏函数的方式将两者结合到一起
# inject global vars into locals of handler
signal_injector = LocalsInjector(signal_to_inject_init,
signal_to_inject_loop)
signal_injector.visit(ast_)
ast_ = series_exporter.visit(ast_)
exec(compile(ast_, "[Strategy:%s]" % self.name, mode="exec"),
signal_globals_, signal_locals_)
for key in signal_to_inject_init.keys():
self.signals[key].set_generator(signal_locals_[key])
print("<%s>信号添加成功" % self.name)
return True
# ----------------------------------------------------------------------
def start(self):
"""
启动交易
这里是最简单的改变self.trading
有需要可以重新实现更复杂的操作
"""
self.trading = True
self.initialize()
for listener in self.signals.values():
listener.start()
for function in self.system_functions.values():
function.start()
self.__printer.start()
print(self.name + u'开始运行')
# ----------------------------------------------------------------------
def stop(self):
"""
停止交易
同上
"""
self.trading = False
for listener in self.signals.values():
listener.stop()
for function in self.system_functions.values():
function.stop()
self.__printer.stop()
print(self.name + u'停止运行')
class Strategy(HasID):
ATTR_MAP = dict(timeframe="time_frame",
base="capital_base",
symbols="symbols",
start="start_time",
end="end_time",
maxlen="max_length")
# ----------------------------------------------------------------------
def __init__(self,
engine,
user,
name,
code,
symbols=None,
time_frame=None,
start_time=None,
end_time=None):
"""Constructor"""
self.__id = self.next_auto_inc()
self.user = user
self.user_dir = UserDirectory(user)
self.name = name
self.code = code
self.engine = engine
self.time_frame = time_frame
self.symbols = symbols
self.start_time = start_time
self.end_time = end_time
self.max_length = 0
self.capital_base = 100000
self.handlers = {}
self.listeners = {}
self.system_functions = {}
self.series_storage = {}
self.__printer = FilePrinter(user, name, self.engine)
self.__context = {}
# 是否完成了初始化
self.trading = False
# 在字典中保存Open,High,Low,Close,Volumn，CurrentBar，MarketPosition，
# 手动为exec语句提供local命名空间
self.__locals_ = dict(
sell=partial(self.engine.sell, strategy=self.__id),
short=partial(self.engine.short, strategy=self.__id),
buy=partial(self.engine.buy, strategy=self.__id),
cover=partial(self.engine.cover, strategy=self.__id),
marketposition=self.engine.get_current_positions(),
currentcontracts=self.engine.get_current_contracts(),
data=self.engine.get_data,
context=self.__context,
export=partial(export, strategy=self),
put=self.put_context,
get=self.get_context,
print=self.__printer.print,
listeners=self.listeners,
system_functions=self.system_functions,
)
# 将策略容器与对应代码文件关联
self.bind_code_to_strategy(self.code)
# -----------------------------------------------------------------------
def get_output(self):
with open(self.__printer.get_path()) as f:
content = f.read()
f.close()
return content
# ----------------------------------------------------------------------
def get_parameters(self):
return {
key: value.get_parameters()
for key, value in self.listeners.items()
}
# ----------------------------------------------------------------------
def set_parameters(self, parameters):
for handle, paras in parameters.items():
self.listeners[handle].set_parameters(**paras)
# ----------------------------------------------------------------------
def get_id(self):
return self.__id
# ----------------------------------------------------------------------
def put_context(self, **kwargs):
for key, value in kwargs.items():
self.__context[key] = value
# ----------------------------------------------------------------------
def get_context(self, key):
return self.__context[key]
# ----------------------------------------------------------------------
def initialize(self):
self.__context.clear()
self.series_storage.clear()
# ----------------------------------------------------------------------
# 将策略容器与策略代码关联
def bind_code_to_strategy(self, code):
def get_parameter_default(paras, name, check, default, pop=True):
if pop:
para = paras.pop(name, None)
else:
para = paras.get(name, None)
if para:
temp = para.default
if temp == inspect._empty:
# TODO未给定值的处理
return default
elif check(temp):
return temp
else:
raise KeyError("变量%s所赋值不合法", name)
else:
return default
def get_global_attrs(locals_):
for name, attr in self.ATTR_MAP.items():
if getattr(self, attr) is None:
setattr(self, attr, locals_.get(name))
def set_global_attrs(globals_):
for name, attr in self.ATTR_MAP.items():
value = getattr(self, attr)
if value is not None:
globals_[name] = value
else:
raise ValueError('全局变量%s未被赋值' % name)
signal_locals_ = {}
function_locals = {}
signal_globals_ = {} # 可动态管理的全策略命名空间
function_globals_ = {} # 可动态管理的系统函数命名空间
# 获取并检查一些全局变量的设定
exec(compile(code, "[Strategy:%s]" % self.name, mode="exec"),
signal_globals_, signal_locals_)
get_global_attrs(signal_locals_)
set_global_attrs(signal_globals_)
set_global_attrs(function_globals_)
signal_globals_.update(self.__locals_)
function_globals_.update(self.__locals_)
self.engine.set_capital_base(self.capital_base)
self.engine.start_time = self.start_time
self.engine.end_time = self.end_time
check_time_frame(self.time_frame)
# get the system functions in use
ast_ = ast.parse(code)
sys_func_detector = SystemFunctionsDetector()
sys_func_detector.visit(ast_)
sys_func_dir = self.user_dir.get_sys_func_dir()
funcs_in_use = sys_func_detector.get_funcs_in_use()
# get the instructions to inject to every handle
signal_instructions = {}
function_instructions = {}
code_lines = ["import functools", "__globals = globals()"]
code_lines.extend([
"{0} = __globals['{0}']".format(key)
for key in self.__locals_.keys()
if key not in ["sell", "buy", "short", "cover"]
])
for key, value in signal_locals_.items():
if inspect.isfunction(value):
if key == "init":
self.handlers['init'] = value
# TODO init中可以设定全局变量，所以要以"global foo"的方式进行注入，监听的事件不同所以要改写SymbolsListener
continue
paras = inspect.signature(value).parameters.copy()
ishandle = get_parameter_default(paras, "ishandle",
lambda x: isinstance(x, bool),
True)
if not ishandle:
continue
custom = get_parameter_default(paras, "custom",
lambda x: isinstance(x, bool),
False)
if not custom:
# TODO加入真正的验证方法
symbols = get_parameter_default(paras, "symbols",
lambda x: True,
self.symbols)
time_frame = get_parameter_default(paras, "timeframe",
check_time_frame,
self.time_frame)
max_length = get_parameter_default(
paras, "maxlen",
lambda x: isinstance(x, int) and (x > 0),
self.max_length)
self.engine.add_symbols(symbols, time_frame, max_length)
self.listeners[key] = SymbolsListener(
self.engine, symbols, time_frame)
additional_instructions = [
"{0} = system_functions['%s.%s'%('{1}','{0}')]".format(
f, key) for f in funcs_in_use.keys()
] + ['del(system_functions)']
temp = []
# TODO 加入opens等，这里字典的嵌套结构
temp.extend([
"%s = __globals['data']()['%s']['%s']['%s']" %
(field, symbols[0], time_frame, field) for field in
["open", "high", "low", "close", "time", "volume"]
])
temp.extend([
"{0} = __globals['listeners']['{1}'].{0}".format(
'get_current_bar', key)
])
function_instructions[key] = code_lines + temp + ["del(functools)", "del(__globals)"] + \
additional_instructions
temp.extend([
"{0} = functools.partial(__globals['{0}'],listener={1})"
.format(field, self.listeners[key].get_id())
for field in ["buy", "short", "sell", "cover"]
])
signal_instructions[key] = code_lines + temp + ["del(functools)", "del(__globals)"] + \
additional_instructions
else:
# TODO自定义事件处理
pass
for para_name in paras.keys():
# TODO加入类型检测
default = get_parameter_default(paras,
para_name,
lambda x: True,
None,
pop=False)
if default is None:
raise ValueError('参数%s未指定初始值' % para_name)
elif not isinstance(default, (int, float)):
raise ValueError('参数%s的值必须为整数或浮点数', para_name)
self.listeners[key].add_parameters(para_name, default)
series_exporter = SeriesExporter() # deal with the export syntax
# export the system functions in use
for func, signal in funcs_in_use.items():
fullname = os.path.join(sys_func_dir, func + ".py")
with open(fullname) as f:
func_ast = ast.parse(f.read())
f.close()
function_injector = LocalsInjector(
{func: function_instructions[signal]})
function_injector.visit(func_ast)
func_ast = series_exporter.visit(func_ast)
# TODO 多个handle时需要对每个handle调用的系统函数建立独立的系统函数
exec(compile(func_ast, "[SysFunctions:%s]" % func, mode="exec"),
function_globals_, function_locals)
self.system_functions['%s.%s' % (signal, func)] = SeriesFunction(
function_locals[func], signal)
# new方法是对__init__的封装，创建SeriesFunction对象所需信息有其所在的函数体本身，signal和其运行时传入的参数，
# 编译时所能确定的只有前者，采用偏函数的方式将两者结合到一起
# inject global vars into locals of handler
signal_injector = LocalsInjector(signal_instructions)
signal_injector.visit(ast_)
ast_ = series_exporter.visit(ast_)
# TODO 解决行号的问题
exec(compile(ast_, "[Strategy:%s]" % self.name, mode="exec"),
signal_globals_, signal_locals_)
for key in signal_instructions.keys():
self.listeners[key].set_generator(signal_locals_[key])
print("<%s>信号添加成功" % self.name)
if 'init' in self.handlers:
self.handlers['init']()
return True
# ----------------------------------------------------------------------
def start(self):
"""
启动交易
这里是最简单的改变self.trading
有需要可以重新实现更复杂的操作
"""
self.trading = True
self.initialize()
for listener in self.listeners.values():
listener.start()
for function in self.system_functions.values():
function.start()
self.__printer.start()
print(self.name + u'开始运行')
# ----------------------------------------------------------------------
def stop(self):
"""
停止交易
同上
"""
self.trading = False
for listener in self.listeners.values():
listener.stop()
for function in self.system_functions.values():
function.stop()
self.__printer.stop()
print(self.name + u'停止运行')
class Strategy(HasID, LoggerInterface, APIInterface, Runnable,
ConfigInterface):
API_FUNCTION = ["Buy", "Sell", "SellShort", "BuyToCover", "Export"
] + get_sys_func_list()
API_VARIABLES = [
"O", "Open", "Opens", "H", "High", "Highs", "L", "Low", "Lows", "C",
"Close", "Closes", "Datetime", "Datetimes", "D", "Timestamp",
"Timestamps", "T", "Volume", "Volumes", "V", "Symbols", "Symbol",
"BarNum", "MarketPosition", "Positions", "Pos", "Cap",
"CurrentContracts", "Point", "TimeFrame", "Symbols", "StartTime",
"MaxLen", "EndTime"
]
def __init__(self, engine, code, parent=None):
"""Constructor"""
super().__init__()
LoggerInterface.__init__(self, parent=parent)
APIInterface.__init__(self)
Runnable.__init__(self)
ConfigInterface.__init__(self, parent=parent)
self.__id = self.next_auto_inc()
self.user = self.config.user
self.user_dir = UserDirectory(User(self.config.user))
self.__strategy_code = StrategyCode(self.config.name, code)
self.__code_parser = None
self.engine = proxy(engine)
self.time_frame = self.config.time_frame
self.symbols = self.config.symbols
self.start_time = self.config.start_time
self.end_time = self.config.end_time
self.capital_base = self.config.capital_base
self.handlers = {}
self.signal_factory = SignalFactory()
self.signals = {}
self.system_functions = {}
self.series_storage = {}
self.printer = FilePrinter(self.config.user, self.config.name,
self.engine)
self.__context = {}
self._setting()
self.logger_name = "Strategy"
# 将策略容器与对应代码文件关联
@staticmethod
def open(*args, **kwargs):
raise RuntimeError("open函数已被禁用")
def get_output(self):
with open(self.printer.get_path()) as f:
content = f.read()
f.close()
return content
def get_parameters(self):
return {
key: value.get_parameters()
for key, value in self.signals.items()
}
def set_parameters(self, parameters):
for handle, paras in parameters.items():
self.signals[handle].set_parameters(**paras)
def get_id(self):
return self.__id
def put_context(self, **kwargs):
for key, value in kwargs.items():
self.__context[key] = value
def get_context(self, key):
return self.__context[key]
def _get_system_func_ast(self, func):
path = os.path.join(self.user_dir.get_sys_func_dir(), func + ".py")
with codecs.open(path, "r", "utf-8") as f:
func_ast = find_func_in_module(func, ast.parse(f.read()))
f.close()
return func_ast
def _setting(self):
# parse the strategy
self.__code_parser = CodeParser(self.__strategy_code, self)
for signal in self.__code_parser.signals:
setting = self.__code_parser.get_signal_setting(signal)
self.engine.add_cache_info(setting.symbols, setting.time_frame,
setting.max_len)
self.signals[signal] = self.signal_factory.new(
self.engine,
self.user,
self.__strategy_code.name,
signal,
setting.symbols,
setting.time_frame,
parent=self)
def _init(self):
# check the import
import_inspector = ImportInspector()
import_inspector.visit(self.__code_parser.ast_root) # 模块导入检查
# get the system functions in use
for signal in self.__code_parser.signals:
sys_func_detector = SystemFunctionsDetector()
sys_func_detector.visit(self.__code_parser.get_signal_ast(signal))
environment = Environment()
for func in sys_func_detector.get_funcs_in_use():
environment.add_system_function(func,
SeriesFunction(signal=signal))
setting = self.__code_parser.get_signal_setting(signal)
environment.update(self.__code_parser.globals)
environment.update(
self.get_APIs(setting.symbols, setting.time_frame))
environment.update(
self.engine.get_APIs(self.get_id(), signal, setting.symbols,
setting.time_frame))
environment.update(self.signals[signal].get_APIs())
self.signals[signal].environment = environment
setter = EnvironmentSetter(environment, parent=self)
series_exporter = SeriesExporter()
for func in sys_func_detector.get_funcs_in_use():
func_ast = self._get_system_func_ast(func)
func_ast = series_exporter.visit(func_ast)
function = environment.get_system_function(func)
function.set_generator(
setter.get_func_within_environment(func_ast,
allow_trading=False))
signal_ast = self.__code_parser.get_signal_ast(signal)
signal_ast = series_exporter.visit(signal_ast)
signal_ast = TradingCommandsTransformer().visit(
signal_ast) # 给买卖语句表上行列号
signal_func = setter.get_func_within_environment(
signal_ast, allow_trading=False)
self.signals[signal].set_generator(signal_func)
self.logger.info("<%s>策略添加成功" % self.__strategy_code.name)
def _recycle(self):
self.__context.clear()
self.series_storage.clear()
def _start(self):
"""
启动交易
"""
self._init()
for signal in self.signals.values():
signal.start()
for function in self.system_functions.values():
function.start()
self.printer.start()
self.logger.info("<%s>策略开始运行" % self.__strategy_code.name)
def _stop(self):
"""
停止交易
同上
"""
for signal in self.signals.values():
signal.stop()
for function in self.system_functions.values():
function.stop()
self.printer.stop()
self._recycle()
self.logger.info("<%s>策略停止运行" % self.__strategy_code.name)
def get_APIs(self, symbols=None, time_frame=None) -> Globals:
temp = {
"Symbols": symbols,
"TimeFrame": time_frame,
"Symbol": symbols[0],
"StartTime": self.start_time,
"EndTime": self.end_time,
"Context": self.__context,
"Export": partial(export, strategy=self),
"Put": self.put_context,
"Get": self.get_context,
"print": self.printer.print,
"open": self.open,
"signals": self.signals,
"system_functions": self.system_functions
}
return Globals(temp, {})