def publish(self, topic, payload=None, qos=None, retain=None):
"""publish message using paho library
"""
logger.debug("Checking subscriptions")
def not_finished_subcribing_to():
"""Get topic names for topics which have not finished subcribing to"""
return [i[0] for i in self._subscribed.values() if not i[1]]
to_wait_for = not_finished_subcribing_to()
if to_wait_for:
elapsed = 0.0
while elapsed < self._connect_timeout:
# TODO
# configurable?
time.sleep(0.25)
elapsed += 0.25
to_wait_for = not_finished_subcribing_to()
if not to_wait_for:
logger.debug("Finished subcribing to all topics")
break
logger.debug(
"Not finished subcribing to '%s' after %.2f seconds",
to_wait_for,
elapsed,
)
if to_wait_for:
logger.warning(
"Did not finish subscribing to '%s' before publishing - going ahead anyway"
)
else:
logger.debug("Finished subcribing to all topics")
logger.debug("Publishing on '%s'", topic)
kwargs = {}
if qos is not None:
kwargs["qos"] = qos
if retain is not None:
kwargs["retain"] = retain
msg = self._client.publish(topic, payload, **kwargs)
if not msg.is_published:
raise exceptions.MQTTError(
"err {:s}: {:s}".format(
_err_vals.get(msg.rc, "unknown"), paho.error_string(msg.rc)
)
)
return msg
def publish(self, topic, payload, *args, **kwargs):
"""publish message using paho library
"""
logger.debug("Publishing on '%s'", topic)
msg = self._client.publish(topic, payload, *args, **kwargs)
if not msg.is_published:
raise exceptions.MQTTError("err {:s}: {:s}".format(_err_vals.get(msg.rc, "unknown"), paho.error_string(msg.rc)))
return msg
def publish(self, topic, payload=None, qos=None, retain=None):
"""publish message using paho library"""
self._wait_for_subscriptions()
logger.debug("Publishing on '%s'", topic)
kwargs = {}
if qos is not None:
kwargs["qos"] = qos
if retain is not None:
kwargs["retain"] = retain
msg = self._client.publish(topic, payload, **kwargs)
if not msg.is_published:
raise exceptions.MQTTError("err {:s}: {:s}".format(
_err_vals.get(msg.rc, "unknown"), paho.error_string(msg.rc)))
return msg