def delete_topic(self, admin_id, topic_name):
"""delete topic for background delete services."""
try:
s3MessageBus = S3CortxMsgBus()
s3MessageBus.connect()
if S3CortxMsgBus.is_topic_exist(admin_id, topic_name):
S3CortxMsgBus.delete_topic(admin_id, [topic_name])
except Exception as e:
raise e
def create_topic(self, admin_id: str, topic_name: str, partitions: int):
"""create topic for background delete services."""
try:
s3MessageBus = S3CortxMsgBus()
s3MessageBus.connect()
if not S3CortxMsgBus.is_topic_exist(admin_id, topic_name):
S3CortxMsgBus.create_topic(admin_id, [topic_name], partitions)
except Exception as e:
raise e
def delete_topic(self, admin_id, topic_name):
"""delete topic for background delete services."""
try:
if S3CortxMsgBus.is_topic_exist(admin_id, topic_name):
S3CortxMsgBus.delete_topic(admin_id, [topic_name])
else:
self.logger.info("Topic does not exist")
except Exception as e:
raise e
def create_topic(self, admin_id: str, topic_name: str, partitions: int):
"""create topic for background delete services."""
try:
if not S3CortxMsgBus.is_topic_exist(admin_id, topic_name):
S3CortxMsgBus.create_topic(admin_id, [topic_name], partitions)
self.logger.info("Topic Created")
else:
self.logger.info("Topic Already exists")
except Exception as e:
raise e
def __init__(self, config, logger):
"""Initialize MessageBus."""
self._config = config
self._logger = logger
self.__msgbuslib = S3CortxMsgBus()
self.__isproducersetupcomplete = False
self.__isconsumersetupcomplete = False
self._daemon_mode = config.get_daemon_mode()
self._sleep_time = config.get_msgbus_consumer_sleep_time()
def __loadmsgbuslibrary(self):
"""Load message bus library."""
#Basically loads msgbus lib and reads its config file
self._logger.debug("Instantiating S3MessageBus")
self.__msgbuslib = S3CortxMsgBus()
self._logger.debug("Connecting to S3MessageBus")
ret,msg = self.__msgbuslib.connect()
if not ret:
self._logger.error("msgbus connect failed {}".format(msg))
self.__msgbuslib = None
return ret
def purge_messages(self, producer_id: str, msg_type: str, delivery_mechanism: str, sleep_time: int):
"""purge messages on message bus."""
try:
s3MessageBus = S3CortxMsgBus()
s3MessageBus.connect()
s3MessageBus.setup_producer(producer_id, msg_type, delivery_mechanism)
try:
s3MessageBus.purge()
#Insert a delay of 1 min after purge, so that the messages are deleted
time.sleep(sleep_time)
except:
sys.stdout.write('Exception during purge. May be there are no messages to purge\n')
except Exception as e:
raise e