def __init__(self, max_size_in_bytes=None):
# type: (Optional[int]) -> None
self.max_size_in_bytes = max_size_in_bytes or uamqp.constants.MAX_MESSAGE_LENGTH_BYTES
self.message = uamqp.BatchMessage(data=[], multi_messages=False, properties=None)
self._size = self.message.gather()[0].get_message_encoded_size()
self._count = 0
self._messages = [] # type: List[Message]
def _build_message(self, body):
if body is None:
raise ValueError("Message body cannot be None.")
else:
self.message = uamqp.BatchMessage(data=body,
multi_messages=True,
properties=self.properties,
header=self.header)