def __init__(self):
"""
"""
self._csv = CsvSource(''.join([os.getcwd(), os.sep, 'data', os.sep]))
self._sql = SqlLiteSource(''.join(
[os.getcwd(), os.sep, 'data', os.sep, 'digger.db']))
self._db = self._csv # 设置数据源
def __init__(self):
"""
"""
self._csv = CsvSource(os.path.join(os.getcwd(), 'data'))
self._sql = SqlLiteSource(
os.path.join(os.getcwd(), 'data', 'digger.db'))
self._src = self._csv # 设置数据源
def set_source(self, settings):
if settings['source'] == 'sqlite':
try:
import sqlite3
path = os.path.join(settings['data_path'], 'digger.db')
self._src = SqlLiteSource(path)
except sqlite3.OperationalError:
raise FileDoesNotExist(file=path)
elif settings['source'] == 'csv':
self._src = CsvSource(settings['data_path'])
try:
Contract.info = self.get_contracts()
except Exception, e:
## @TODO
pass
class LocalData(object):
""" 本地数据代理根据配置决定数据源的类型,
比如sqlite, csv, pytable
"""
def __init__(self):
"""
"""
self._csv = CsvSource(''.join([os.getcwd(), os.sep, 'data', os.sep]))
self._sql = SqlLiteSource(''.join([os.getcwd(), os.sep, 'data', os.sep, 'digger.db']))
def load_bars(self, pcontract, dt_start, dt_end):
dt_start = pd.to_datetime(dt_start)
dt_end = pd.to_datetime(dt_end)
if pcontract.contract.exch_type == 'stock':
return []
else:
return self._csv.load_bars(pcontract, dt_start, dt_end);
def loadTickData(self):
raise NotImplementedError
def loadContractsInfo(self):
""" 合约信息 """
raise NotImplementedError
def __init__(self):
"""
"""
self._csv = CsvSource(''.join([os.getcwd(), os.sep, 'data', os.sep]))
self._sql = SqlLiteSource(''.join([os.getcwd(), os.sep, 'data', os.sep, 'digger.db']))
