X-Git-Url: https://osm.etsi.org/gitweb/?a=blobdiff_plain;f=osm_common%2Fmsgkafka.py;h=bc9147d415111ab3fa3f891dd16c565208d4b06c;hb=10602af49b01f0370761e913eacf485e77e4fde0;hp=767fff6c30bba3703e27afc093f77f9b10ea94f0;hpb=48b78e112662d927cad376d739e43fb94f108ff3;p=osm%2Fcommon.git diff --git a/osm_common/msgkafka.py b/osm_common/msgkafka.py index 767fff6..bc9147d 100644 --- a/osm_common/msgkafka.py +++ b/osm_common/msgkafka.py @@ -26,8 +26,8 @@ __author__ = "Alfonso Tierno , " \ class MsgKafka(MsgBase): - def __init__(self, logger_name='msg'): - self.logger = logging.getLogger(logger_name) + def __init__(self, logger_name='msg', lock=False): + super().__init__(logger_name, lock) self.host = None self.port = None self.consumer = None @@ -42,7 +42,7 @@ class MsgKafka(MsgBase): self.logger = logging.getLogger(config["logger_name"]) self.host = config["host"] self.port = config["port"] - self.loop = asyncio.get_event_loop() + self.loop = config.get("loop") or asyncio.get_event_loop() self.broker = str(self.host) + ":" + str(self.port) self.group_id = config.get("group_id") @@ -84,6 +84,14 @@ class MsgKafka(MsgBase): raise MsgException("Error reading {} topic: {}".format(topic, str(e))) async def aiowrite(self, topic, key, msg, loop=None): + """ + Asyncio write + :param topic: str kafka topic + :param key: str kafka key + :param msg: str or dictionary kafka message + :param loop: asyncio loop. To be DEPRECATED! in near future!!! loop must be provided inside config at connect + :return: None + """ if not loop: loop = self.loop @@ -97,26 +105,32 @@ class MsgKafka(MsgBase): 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. It blocks. + Asyncio read from one or several topics. :param topic: can be str: single topic; or str list: several topics - :param loop: asyncio loop + :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)