birbnetes/guard-service
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Fixed missing reference to mqtt
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Pünkösd Marcell 2020-09-19 17:01:41 +02:00
parent ab9c9fe40e
commit 41daa413f5
1 changed files with 22 additions and 15 deletions
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37
src/app.py
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@ -35,7 +35,7 @@ if config.SENTRY_DSN:
)
def setup_rabbit() -> None:
def setup_rabbit(mqtt_: MQTT) -> None:
logging.info("Connecting to RabbitMQ")
credentials = pika.PlainCredentials(config.RABBIT_USERNAME, config.RABBIT_PASSWORD)
connection = pika.BlockingConnection(pika.ConnectionParameters(host=config.RABBIT_HOSTNAME,
@ -48,23 +48,30 @@ def setup_rabbit() -> None:
queue = channel.queue_declare(durable=True, auto_delete=True, queue=uuid.uuid4().urn.split(':')[2],
exclusive=True).method.queue
channel.queue_bind(exchange=config.RABBIT_EXCHANGE, queue=queue)
channel.basic_consume(queue=queue, on_message_callback=on_message, auto_ack=True)
channel.basic_consume(queue=queue, on_message_callback=on_message_creator(mqtt_), auto_ack=True)
logging.debug("Starting consumption")
channel.start_consuming()
def on_message(channel, method_frame, header_frame, body):
msg_json = json.loads(body)
if 'probability' not in msg_json:
logging.error("Malformed message from broker")
if msg_json['probability'] > 0.5:
r = requests.get(f"http://{config.INPUT_HOSTNAME}/sample/{msg_json['tag']}")
r.raise_for_status()
if 'device_id' not in r.json():
logging.error("Input-service response invalid")
logging.info(f"Sending alert command to device {r.json()['device_id']}")
mqtt.publish(subtopic=r.json()['device_id'],
message=json.dumps({"command": "doAlert"}))
def on_message_creator(mqtt_: MQTT):
"""
This generator is used, so that the mqtt object can be injected just when the callback is registered
"""
def on_message(channel, method_frame, header_frame, body):
msg_json = json.loads(body)
if 'probability' not in msg_json:
logging.error("Malformed message from broker")
if msg_json['probability'] > 0.5:
r = requests.get(f"http://{config.INPUT_HOSTNAME}/sample/{msg_json['tag']}")
r.raise_for_status()
if 'device_id' not in r.json():
logging.error("Input-service response invalid")
logging.info(f"Sending alert command to device {r.json()['device_id']}")
mqtt_.publish(subtopic=r.json()['device_id'],
message=json.dumps({"command": "doAlert"}))
return on_message
if __name__ == "__main__":
@ -74,4 +81,4 @@ if __name__ == "__main__":
mqtt = MQTT()
mqtt.topic = config.MQTT_TOPIC
mqtt.connect()
setup_rabbit()
setup_rabbit(mqtt)