124 lines
4.6 KiB
Python
124 lines
4.6 KiB
Python
# Klipper data logging and storage storage
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#
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# Copyright (C) 2020 Eric Callahan <arksine.code@gmail.com>
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#
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# This file may be distributed under the terms of the GNU GPLv3 license.
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import logging
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import time
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from collections import deque
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from tornado.ioloop import IOLoop, PeriodicCallback
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TEMPERATURE_UPDATE_MS = 1000
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TEMPERATURE_STORE_SIZE = 20 * 60
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MAX_GCODE_LINES = 1000
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class DataStore:
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def __init__(self, config):
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self.server = config.get_server()
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# Temperature Store Tracking
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self.last_temps = {}
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self.gcode_queue = deque(maxlen=MAX_GCODE_LINES)
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self.temperature_store = {}
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self.temp_update_cb = PeriodicCallback(
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self._update_temperature_store, TEMPERATURE_UPDATE_MS)
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# Register status update event
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self.server.register_event_handler(
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"server:status_update", self._set_current_temps)
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self.server.register_event_handler(
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"server:gcode_response", self._update_gcode_store)
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self.server.register_event_handler(
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"server:klippy_ready", self._init_sensors)
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# Register endpoints
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self.server.register_endpoint(
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"/server/temperature_store", ['GET'],
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self._handle_temp_store_request)
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self.server.register_endpoint(
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"/server/gcode_store", ['GET'],
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self._handle_gcode_store_request)
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async def _init_sensors(self):
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klippy_apis = self.server.lookup_plugin('klippy_apis')
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# Fetch sensors
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try:
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result = await klippy_apis.query_objects({'heaters': None})
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except self.server.error as e:
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logging.info(f"Error Configuring Sensors: {e}")
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return
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sensors = result.get("heaters", {}).get("available_sensors", [])
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if sensors:
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# Add Subscription
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sub = {s: None for s in sensors}
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try:
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status = await klippy_apis.subscribe_objects(sub)
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except self.server.error as e:
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logging.info(f"Error subscribing to sensors: {e}")
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return
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logging.info(f"Configuring available sensors: {sensors}")
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new_store = {}
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for sensor in sensors:
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if sensor in self.temperature_store:
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new_store[sensor] = self.temperature_store[sensor]
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else:
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new_store[sensor] = {
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'temperatures': deque(maxlen=TEMPERATURE_STORE_SIZE),
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'targets': deque(maxlen=TEMPERATURE_STORE_SIZE)}
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if sensor not in self.last_temps:
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self.last_temps[sensor] = (0., 0.)
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self.temperature_store = new_store
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# Prune unconfigured sensors in self.last_temps
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for sensor in list(self.last_temps.keys()):
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if sensor not in self.temperature_store:
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del self.last_temps[sensor]
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# Update initial temperatures
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self._set_current_temps(status)
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self.temp_update_cb.start()
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else:
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logging.info("No sensors found")
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self.last_temps = {}
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self.temperature_store = {}
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self.temp_update_cb.stop()
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def _set_current_temps(self, data):
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for sensor in self.temperature_store:
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if sensor in data:
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last_temp, last_target = self.last_temps[sensor]
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self.last_temps[sensor] = (
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round(data[sensor].get('temperature', last_temp), 2),
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data[sensor].get('target', last_target))
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def _update_temperature_store(self):
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# XXX - If klippy is not connected, set values to zero
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# as they are unknown?
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for sensor, (temp, target) in self.last_temps.items():
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self.temperature_store[sensor]['temperatures'].append(temp)
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self.temperature_store[sensor]['targets'].append(target)
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async def _handle_temp_store_request(self, web_request):
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store = {}
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for name, sensor in self.temperature_store.items():
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store[name] = {k: list(v) for k, v in sensor.items()}
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return store
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async def close(self):
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self.temp_update_cb.stop()
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def _update_gcode_store(self, response):
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curtime = time.time()
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self.gcode_queue.append({'message': response, 'time': curtime})
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async def _handle_gcode_store_request(self, web_request):
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count = web_request.get_int("count", None)
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if count is not None:
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res = list(self.gcode_queue)[-count:]
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else:
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res = list(self.gcode_queue)
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return {'gcode_store': res}
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def load_plugin(config):
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return DataStore(config)
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