def feed_to_exchange(exchange, feed):
if exchange == POLONIEX:
if feed not in _feed_to_exchange_map:
return pair_std_to_exchange(feed, POLONIEX)
ret = _feed_to_exchange_map[feed][exchange]
if ret == UNSUPPORTED:
exception = UnsupportedDataFeed(
f"{feed} is not supported on {exchange}")
LOG.error("Raise %r", exception)
raise exception
return ret
def feed_to_exchange(exchange, feed):
if exchange == POLONIEX:
if feed not in _feed_to_exchange_map:
return pair_std_to_exchange(feed, POLONIEX)
ret = _feed_to_exchange_map[feed][exchange]
if ret == UNSUPPORTED:
LOG.error(f"{feed} is not supported on {exchange}")
if feed in {LIMIT, MARKET}:
raise UnsupportedOrderType
else:
raise UnsupportedDataFeed(f"{feed} is not supported on {exchange}")
return ret
def raise_error():
exception = UnsupportedDataFeed(
f"{feed} is not currently supported on {exchange}")
if not silent:
LOG.error("Error: %r", exception)
raise exception
def std_channel_to_exchange(cls, channel: str) -> str:
try:
return cls.websocket_channels[channel]
except KeyError:
raise UnsupportedDataFeed(f'{channel} is not supported on {cls.id}')
