def getHistoricalAdjustedPriceData(self, symbol, start_date, end_date, time_interval):
d1 = str(start_date.getDay())
m1 = str(start_date.getMonth() - 1)
y1 = str(start_date.getYear())
d2 = str(end_date.getDay())
m2 = str(end_date.getMonth() - 1)
y2 = str(end_date.getYear())
if time_interval == "daily":
time_interval = "d"
elif time_interval == "weekly":
time_interval = "w"
elif time_interval == "monthly":
time_interval = "m"
URL = "http://ichart.finance.yahoo.com/table.csv?s=" + symbol + "&b=" + d1
URL += "&a=" + m1 + "&c=" + y1 + "&e=" + d2 + "&d=" + m2 + "&f=" + y2 + "&g="
URL += time_interval + "&ignore=.cvs"
csv_dict = self.getCSVDictForApiCall(URL)
price_obj_list = []
for index in csv_dict:
if (str(index) == "0"):
continue
hist_price_obj = YAFIObjects.YAFIObjectHistoricalPrice(csv_dict[index])
price_obj_list.append(hist_price_obj)
return price_obj_list
def getAdjustedPriceDataForDate(self, symbol, date):
if symbol not in self.price_history_cache:
successful = self.cachePriceData(symbol)
if not successful:
return None
date_price_dict = self.symbol_date_price_hashmap[symbol]
date_string = date.getAsString()
if date_string not in date_price_dict:
return None
return YAFIObjects.YAFIObjectHistoricalPrice(date_price_dict[date_string])
def getAdjustedPriceDataRangeStack(self, symbol, start_date, end_date):
if symbol not in self.price_history_cache:
successful = self.cachePriceData(symbol)
if not successful:
return None
stack = YAFIObjects.HistoricalAdjustedPriceRangeStack()
date_prices_map = self.symbol_date_price_hashmap[symbol]
date_counter = end_date
while True:
date_string = date_counter.getAsString()
if date_counter < start_date:
break
if date_string in date_prices_map:
hist_price_obj = YAFIObjects.YAFIObjectHistoricalPrice(date_prices_map[date_string])
stack.addPriceObject(hist_price_obj)
date_counter = date_counter.getBeforeDayDate()
return stack
def getAdjustedPriceDataRangeStackForAmountOfDays(self, symbol, end_date,
days):
if symbol not in self.price_history_cache:
return None
fail_counter = 0
stack = YAFIObjects.HistoricalAdjustedPriceRangeStack()
date_prices_map = self.symbol_date_price_hashmap[symbol]
date_counter = end_date
while True:
date_string = date_counter.getAsString()
if days == 0 or fail_counter >= 7:
break
if date_string in date_prices_map:
hist_price_obj = YAFIObjects.YAFIObjectHistoricalPrice(
date_prices_map[date_string])
stack.addPriceObject(hist_price_obj)
days -= 1
fail_counter = 0
date_counter = date_counter.getBeforeDayDate()
fail_counter += 1
return stack