:param msg: message content, can be string or dictionary
:return: None or raises MsgException on failing
"""
- try:
- self.loop.run_until_complete(self.aiowrite(topic=topic, key=key, msg=msg))
-
- except Exception as e:
- raise MsgException("Error writing {} topic: {}".format(topic, str(e)))
+ retry = 2 # Try two times
+ while retry:
+ try:
+ self.loop.run_until_complete(self.aiowrite(topic=topic, key=key, msg=msg))
+ break
+ except Exception as e:
+ retry -= 1
+ if retry == 0:
+ raise MsgException("Error writing {} topic: {}".format(topic, str(e)))
def read(self, topic):
"""
finally:
await self.producer.stop()
- async def aioread(self, topic, loop=None, callback=None, aiocallback=None, **kwargs):
+ async def aioread(self, topic, loop=None, callback=None, aiocallback=None, group_id=None, **kwargs):
"""
Asyncio read from one or several topics.
:param topic: can be str: single topic; or str list: several topics
:param loop: asyncio loop. To be DEPRECATED! in near future!!! loop must be provided inside config at connect
:param callback: synchronous callback function that will handle the message in kafka bus
:param aiocallback: async callback function that will handle the message in kafka bus
+ :param group_id: kafka group_id to use. Can be False (set group_id to None), None (use general group_id provided
+ at connect inside config), or a group_id string
:param kwargs: optional keyword arguments for callback function
:return: If no callback defined, it returns (topic, key, message)
"""
if not loop:
loop = self.loop
+ if group_id is False:
+ group_id = None
+ elif group_id is None:
+ group_id = self.group_id
try:
if isinstance(topic, (list, tuple)):
topic_list = topic
else:
topic_list = (topic,)
- self.consumer = AIOKafkaConsumer(loop=loop, bootstrap_servers=self.broker, group_id=self.group_id)
+ self.consumer = AIOKafkaConsumer(loop=loop, bootstrap_servers=self.broker, group_id=group_id)
await self.consumer.start()
self.consumer.subscribe(topic_list)
async for message in self.consumer:
if callback:
- callback(message.topic, yaml.load(message.key), yaml.load(message.value), **kwargs)
+ callback(message.topic, yaml.safe_load(message.key), yaml.safe_load(message.value), **kwargs)
elif aiocallback:
- await aiocallback(message.topic, yaml.load(message.key), yaml.load(message.value), **kwargs)
+ await aiocallback(message.topic, yaml.safe_load(message.key), yaml.safe_load(message.value),
+ **kwargs)
else:
- return message.topic, yaml.load(message.key), yaml.load(message.value)
+ return message.topic, yaml.safe_load(message.key), yaml.safe_load(message.value)
except KafkaError as e:
raise MsgException(str(e))
finally: