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195 | class NaneosDeviceManager(threading.Thread):
"""
NaneosDeviceManager is a class that manages Naneos devices.
It connects and disconnects automatically.
"""
def __init__(
self, use_serial=True, use_ble=True, upload_active=True, gathering_interval_seconds=30
) -> None:
super().__init__(daemon=True)
self._use_serial = use_serial
self._use_ble = use_ble
self._upload_active = upload_active
self._next_upload_time = time.time() + gathering_interval_seconds
self.set_gathering_interval_seconds(gathering_interval_seconds)
self._out_queue: queue.Queue | None = None
self._stop_event = threading.Event()
self._manager_serial: PartectorSerialManager | None = None
self._manager_ble: PartectorBleManager | None = None
self._data: dict[int, pd.DataFrame] = {}
self.upload_blocked_devices: list[int | None] = []
def use_serial_connections(self, use: bool) -> None:
self._use_serial = use
def use_ble_connections(self, use: bool) -> None:
self._use_ble = use
def get_serial_connection_status(self) -> bool:
return self._use_serial
def get_ble_connection_status(self) -> bool:
return self._use_ble
def get_upload_status(self) -> bool:
return self._upload_active
def set_upload_status(self, active: bool) -> None:
self._upload_active = active
def get_gathering_interval_seconds(self) -> int:
return self._gathering_interval_seconds
def set_gathering_interval_seconds(self, interval: int) -> None:
interval = max(10, min(600, interval))
logger.info(f"Setting gathering interval to {interval} seconds.")
self._gathering_interval_seconds = interval
tmp_next_upload_time = time.time() + self._gathering_interval_seconds
self._next_upload_time = min(self._next_upload_time, tmp_next_upload_time)
def register_output_queue(self, out_queue: queue.Queue) -> None:
self._out_queue = out_queue
def unregister_output_queue(self) -> None:
self._out_queue = None
def run(self) -> None:
self._loop()
# graceful shutdown in any case
self._use_serial = False
self._loop_serial_manager()
self._use_ble = False
self._loop_ble_manager()
def stop(self) -> None:
self._stop_event.set()
def get_connected_serial_devices(self) -> list[str]:
"""
Returns a list of connected serial devices.
"""
if self._manager_serial is None:
return []
return self._manager_serial.get_connected_device_strings()
def get_connected_ble_devices(self) -> list[str]:
"""
Returns a list of connected BLE devices.
"""
if self._manager_ble is None:
return []
return self._manager_ble.get_connected_device_strings()
def get_seconds_until_next_upload(self) -> float:
"""
Returns the number of seconds until the next upload.
This is used to determine when to upload data.
"""
return max(0, self._next_upload_time - time.time())
def _loop_serial_manager(self) -> None:
# normal operation
if (
isinstance(self._manager_serial, PartectorSerialManager)
and self._manager_serial.is_alive()
):
self.upload_blocked_devices = self._manager_serial.get_gain_test_activating_devices()
data_serial = self._manager_serial.get_data()
self._data = add_to_existing_naneos_data(self._data, data_serial)
# starting
if self._manager_serial is None and self._use_serial:
logger.info("Starting serial manager...")
self._manager_serial = PartectorSerialManager()
self._manager_serial.start()
# stopping
if isinstance(self._manager_serial, PartectorSerialManager) and not self._use_serial:
logger.info("Stopping serial manager...")
self._manager_serial.stop()
self._manager_serial.join()
self._manager_serial = None
def _loop_ble_manager(self) -> None:
# normal operation
if isinstance(self._manager_ble, PartectorBleManager) and self._manager_ble.is_alive():
data_ble = self._manager_ble.get_data()
self._data = add_to_existing_naneos_data(self._data, data_ble)
# starting
if self._manager_ble is None and self._use_ble:
logger.info("Starting BLE manager...")
self._manager_ble = PartectorBleManager()
self._manager_ble.start()
# stopping
if isinstance(self._manager_ble, PartectorBleManager) and not self._use_ble:
logger.info("Stopping BLE manager...")
self._manager_ble.stop()
self._manager_ble.join()
self._manager_ble = None
def _loop(self) -> None:
self._next_upload_time = time.time() + self._gathering_interval_seconds
while not self._stop_event.is_set():
try:
time.sleep(1)
self._loop_serial_manager()
self._loop_ble_manager()
# remove entries from _data that is in upload_blocked_devices
for blocked_sn in self.upload_blocked_devices:
if blocked_sn in self._data:
del self._data[blocked_sn]
if time.time() >= self._next_upload_time:
self._next_upload_time = time.time() + self._gathering_interval_seconds
serial_connected_sns: list[int | None] = []
if self._use_serial and self._manager_serial is not None:
serial_connected_sns = self._manager_serial.get_connected_serial_numbers()
upload_data = sort_and_clean_naneos_data(self._data, serial_connected_sns)
self._data = {}
if isinstance(self._out_queue, queue.Queue):
self._out_queue.put(upload_data)
if self._upload_active:
uploader = NaneosUploadThread(
upload_data,
callback=lambda success: logger.info(f"Upload success: {success}"),
)
uploader.start()
uploader.join()
except Exception as e:
logger.exception(f"DeviceManager loop exception: {e}")
|