def send_long_response(self, response=None):
"""Send a response to a query which expects a "long" response."""
if response is None:
response = Response(value=ERROR_VALUE)
assert response.value is not None
if response.iterstate is None:
response.iterstate = ('', 0)
# This operation is obviously no longer blocking
self.__blocking_state.clear()
# Coerce the response to a Value
if not isinstance(response.value, Value):
response.value = str(response.value)
if isinstance(response.value, str):
response.value = Value(DIRECT_STRING, response.value)
# Coerce the status to a 4-digit string
response.status = coerce_status(response.status)
# Send the metadata
if self.__metadata_send:
self.__send_dictionary(response.metadata)
# Send the reply itself
self.__reply_long_preamble(response)
if response.value.is_large():
if _DEBUG:
log.msg("using long value protocol")
producer = FileProducer(response.value, self.transport)
self.transport.registerProducer(producer, None)
else:
self.transport.write(response.value.val())
def send_error(self, reason, status=1, long_reply=False):
"""Utility to send an error reply."""
metadata = {'nwsReason': reason}
response = Response(metadata)
response.status = status
if long_reply:
response.value = ERROR_VALUE
self.send_long_response(response)
else:
self.send_short_response(response)