mirror of
https://github.com/ferdzo/iotDashboard.git
synced 2026-04-05 17:16:26 +00:00
120 lines
3.5 KiB
Python
120 lines
3.5 KiB
Python
import logging
|
|
import signal
|
|
import sys
|
|
from config import config
|
|
from mqtt_client import MQTTClient
|
|
from redis_writer import RedisWriter
|
|
|
|
# Setup logging
|
|
logging.basicConfig(
|
|
level=getattr(logging,'INFO'),
|
|
format='%(asctime)s - %(name)s - %(levelname)s - %(message)s'
|
|
)
|
|
logger = logging.getLogger(__name__)
|
|
|
|
class MQTTIngestionService:
|
|
def __init__(self):
|
|
self.running = False
|
|
self.redis_writer = None
|
|
self.mqtt_client = None
|
|
|
|
# Setup signal handlers for graceful shutdown
|
|
signal.signal(signal.SIGTERM, self._signal_handler)
|
|
signal.signal(signal.SIGINT, self._signal_handler)
|
|
|
|
def _signal_handler(self, signum, frame):
|
|
"""Handle shutdown signals"""
|
|
logger.info(f"Received signal {signum}, shutting down...")
|
|
self.stop()
|
|
|
|
def _handle_sensor_data(self, device_id: str, sensor_type: str, value: float):
|
|
"""
|
|
This function is called by MQTT client when a message arrives.
|
|
It just passes the data to Redis writer.
|
|
"""
|
|
success = self.redis_writer.write_sensor_data(device_id, sensor_type, value)
|
|
if success:
|
|
logger.info(f"Processed {device_id}/{sensor_type}: {value}")
|
|
else:
|
|
logger.error(f"Failed to process {device_id}/{sensor_type}: {value}")
|
|
|
|
def start(self):
|
|
"""Start the service"""
|
|
logger.info("Starting MQTT Ingestion Service...")
|
|
|
|
try:
|
|
# Initialize Redis writer
|
|
self.redis_writer = RedisWriter()
|
|
|
|
# Initialize MQTT client with our message handler
|
|
self.mqtt_client = MQTTClient(self._handle_sensor_data)
|
|
|
|
# Connect to MQTT
|
|
if not self.mqtt_client.connect():
|
|
logger.error("Failed to connect to MQTT, exiting")
|
|
return False
|
|
|
|
self.running = True
|
|
logger.info("Service started successfully")
|
|
|
|
# Start MQTT loop (this blocks)
|
|
self.mqtt_client.start_loop()
|
|
|
|
except Exception as e:
|
|
logger.error(f"Service startup failed: {e}")
|
|
return False
|
|
|
|
return True
|
|
|
|
def stop(self):
|
|
"""Stop the service gracefully"""
|
|
if not self.running:
|
|
return
|
|
|
|
logger.info("Stopping service...")
|
|
self.running = False
|
|
|
|
# Stop MQTT client
|
|
if self.mqtt_client:
|
|
self.mqtt_client.stop()
|
|
|
|
# Close Redis connection
|
|
if self.redis_writer:
|
|
self.redis_writer.close()
|
|
|
|
logger.info("Service stopped")
|
|
|
|
def health_check(self) -> bool:
|
|
"""Check if service is healthy"""
|
|
if not self.running:
|
|
return False
|
|
|
|
# Check Redis connection
|
|
if not self.redis_writer or not self.redis_writer.health_check():
|
|
return False
|
|
|
|
return True
|
|
|
|
def main():
|
|
"""Entry point"""
|
|
service = MQTTIngestionService(
|
|
redis_config=config.redis,
|
|
mqtt_config=config.mqtt
|
|
)
|
|
|
|
try:
|
|
# Start the service (blocks until shutdown)
|
|
success = service.start()
|
|
if not success:
|
|
sys.exit(1)
|
|
except KeyboardInterrupt:
|
|
logger.info("Received keyboard interrupt")
|
|
except Exception as e:
|
|
logger.error(f"Unexpected error: {e}")
|
|
sys.exit(1)
|
|
finally:
|
|
service.stop()
|
|
|
|
if __name__ == "__main__":
|
|
main()
|