From 1d6d191ac68e7f02e7d8f8c849be05c91c62d2aa Mon Sep 17 00:00:00 2001 From: "vn.py" Date: Thu, 18 Apr 2019 10:46:55 +0800 Subject: [PATCH] [Mod]move RQData related function into rqdata.py --- vnpy/app/cta_strategy/engine.py | 83 ++-------------------- vnpy/trader/rqdata.py | 117 ++++++++++++++++++++++++++++++++ 2 files changed, 124 insertions(+), 76 deletions(-) create mode 100644 vnpy/trader/rqdata.py diff --git a/vnpy/app/cta_strategy/engine.py b/vnpy/app/cta_strategy/engine.py index 84939da3..fe1ac68d 100644 --- a/vnpy/app/cta_strategy/engine.py +++ b/vnpy/app/cta_strategy/engine.py @@ -5,7 +5,7 @@ import os import traceback from collections import defaultdict from pathlib import Path -from typing import Any, Callable, List +from typing import Any, Callable from datetime import datetime, timedelta from threading import Thread from queue import Queue @@ -37,7 +37,7 @@ from vnpy.trader.constant import ( ) from vnpy.trader.utility import load_json, save_json, extract_vt_symbol from vnpy.trader.database import database_manager -from vnpy.trader.setting import SETTINGS +from vnpy.trader.rqdata import rqdata_client from .base import ( APP_NAME, @@ -124,26 +124,9 @@ class CtaEngine(BaseEngine): """ Init RQData client. """ - username = SETTINGS["rqdata.username"] - password = SETTINGS["rqdata.password"] - if not username or not password: - return - - import rqdatac - - self.rq_client = rqdatac - self.rq_client.init(username, password, - ('rqdatad-pro.ricequant.com', 16011)) - - try: - df = self.rq_client.all_instruments( - type='Future', date=datetime.now()) - for ix, row in df.iterrows(): - self.rq_symbols.add(row['order_book_id']) - except RuntimeError: - pass - - self.write_log("RQData数据接口初始化成功") + result = rqdata_client.init() + if result: + self.write_log("RQData数据接口初始化成功") def query_bar_from_rq( self, symbol: str, exchange: Exchange, interval: Interval, start: datetime, end: datetime @@ -151,36 +134,9 @@ class CtaEngine(BaseEngine): """ Query bar data from RQData. """ - rq_symbol = to_rq_symbol(symbol, exchange) - if rq_symbol not in self.rq_symbols: - return None - - end += timedelta(1) # For querying night trading period data - - df = self.rq_client.get_price( - rq_symbol, - frequency=interval.value, - fields=["open", "high", "low", "close", "volume"], - start_date=start, - end_date=end + data = rqdata_client.query_bar( + symbol, exchange, interval, start, end ) - - data: List[BarData] = [] - for ix, row in df.iterrows(): - bar = BarData( - symbol=symbol, - exchange=exchange, - interval=interval, - datetime=row.name.to_pydatetime(), - open_price=row["open"], - high_price=row["high"], - low_price=row["low"], - close_price=row["close"], - volume=row["volume"], - gateway_name="RQ" - ) - data.append(bar) - return data def process_tick_event(self, event: Event): @@ -916,28 +872,3 @@ class CtaEngine(BaseEngine): self.main_engine.send_email(subject, msg) - -def to_rq_symbol(symbol: str, exchange: Exchange): - """ - CZCE product of RQData has symbol like "TA1905" while - vt symbol is "TA905.CZCE" so need to add "1" in symbol. - """ - if exchange is not Exchange.CZCE: - return symbol.upper() - - for count, word in enumerate(symbol): - if word.isdigit(): - break - - # noinspection PyUnboundLocalVariable - product = symbol[:count] - year = symbol[count] - month = symbol[count + 1:] - - if year == "9": - year = "1" + year - else: - year = "2" + year - - rq_symbol = f"{product}{year}{month}".upper() - return rq_symbol diff --git a/vnpy/trader/rqdata.py b/vnpy/trader/rqdata.py new file mode 100644 index 00000000..d440c0d8 --- /dev/null +++ b/vnpy/trader/rqdata.py @@ -0,0 +1,117 @@ +from datetime import datetime, timedelta +from typing import List + +from rqdatac import init as rqdata_init +from rqdatac.services.basic import all_instruments as rqdata_all_instruments +from rqdatac.services.get_price import get_price as rqdata_get_price + +from .setting import SETTINGS +from .constant import Exchange, Interval +from .object import BarData + + +class RqdataClient: + """ + Client for querying history data from RQData. + """ + + def __init__(self): + """""" + self.username = SETTINGS["rqdata.username"] + self.password = SETTINGS["rqdata.password"] + + self.inited = False + self.symbols = set() + + def init(self): + """""" + if self.inited: + return True + + if not self.username or not self.password: + return False + + rqdata_init(self.username, self.password, + ('rqdatad-pro.ricequant.com', 16011)) + + try: + df = rqdata_all_instruments( + type='Future', date=datetime.now()) + for ix, row in df.iterrows(): + self.symbols.add(row['order_book_id']) + except RuntimeError: + return False + + self.inited = True + return True + + def to_rq_symbol(self, symbol: str, exchange: Exchange): + """ + CZCE product of RQData has symbol like "TA1905" while + vt symbol is "TA905.CZCE" so need to add "1" in symbol. + """ + if exchange is not Exchange.CZCE: + return symbol.upper() + + for count, word in enumerate(symbol): + if word.isdigit(): + break + + # noinspection PyUnboundLocalVariable + product = symbol[:count] + year = symbol[count] + month = symbol[count + 1:] + + if year == "9": + year = "1" + year + else: + year = "2" + year + + rq_symbol = f"{product}{year}{month}".upper() + return rq_symbol + + def query_bar( + self, + symbol: str, + exchange: Exchange, + interval: Interval, + start: datetime, + end: datetime + ): + """ + Query bar data from RQData. + """ + rq_symbol = self.to_rq_symbol(symbol, exchange) + if rq_symbol not in self.symbols: + return None + + end += timedelta(1) # For querying night trading period data + + df = rqdata_get_price( + rq_symbol, + frequency=interval.value, + fields=["open", "high", "low", "close", "volume"], + start_date=start, + end_date=end + ) + + data: List[BarData] = [] + for ix, row in df.iterrows(): + bar = BarData( + symbol=symbol, + exchange=exchange, + interval=interval, + datetime=row.name.to_pydatetime(), + open_price=row["open"], + high_price=row["high"], + low_price=row["low"], + close_price=row["close"], + volume=row["volume"], + gateway_name="RQ" + ) + data.append(bar) + + return data + + +rqdata_client = RqdataClient()