80 lines
2.6 KiB
Python
80 lines
2.6 KiB
Python
import json, time
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from datetime import datetime as dt
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from quickfaas.measure import recall, write
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from quickfaas.remotebus import publish
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from common.Logger import logger
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# Helper function to split the payload into chunks
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def chunk_payload(payload, chunk_size=20):
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chunked_values = list(payload["values"].items())
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for i in range(0, len(chunked_values), chunk_size):
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yield {
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"ts": payload["ts"],
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"values": dict(chunked_values[i:i+chunk_size])
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}
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def sync():
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#get new values and send
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payload = {"ts": round(dt.timestamp(dt.now()))*1000, "values": {}}
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topic = "v1/devices/me/telemetry"
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try:
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data = recall()#json.loads(recall().decode("utf-8"))
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except Exception as e:
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logger.error(e)
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logger.debug(data)
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for controller in data:
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for measure in controller["measures"]:
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#publish measure
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payload["values"][measure["name"]] = measure["value"]
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logger.debug("Sending on topic: {}".format(topic))
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logger.debug("Sending value: {}".format(payload))
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for chunk in chunk_payload(payload=payload):
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publish(topic, json.dumps(chunk), 1)
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time.sleep(2)
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def writeplctag(value):
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#value in the form {"measurement": <measurement_name>, "value": <value to write>}
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try:
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#value = json.loads(value.replace("'",'"'))
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logger.debug(value)
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#payload format: [{"name": "advvfdipp", "measures": [{"name": "manualfrequencysetpoint", "value": 49}]}]
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message = [{"name": "plcfreshwater", "measures":[{"name":value["measurement"], "value": value["value"]}]}]
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resp = write(message)
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logger.debug("RETURN FROM WRITE: {}".format(resp))
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return True
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except Exception as e:
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logger.debug(e)
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return False
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def receiveCommand(topic, payload):
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try:
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logger.debug(topic)
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logger.debug(json.loads(payload))
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p = json.loads(payload)
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command = p["method"]
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commands = {
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"sync": sync,
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"writeplctag": writeplctag,
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}
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if command == "setPLCTag":
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try:
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result = commands["writeplctag"](p["params"])
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logger.debug(result)
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except Exception as e:
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logger.error(e)
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#logger.debug(command)
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ack(topic.split("/")[-1])
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time.sleep(5)
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sync()
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except Exception as e:
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logger.debug(e)
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def ack(msgid):
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#logger.debug(msgid)
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#logger.debug(mac)
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#logger.debug(name)
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#logger.debug(value)
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publish("v1/devices/me/rpc/response/" + str(msgid), json.dumps({"msg": {"time": time.time()}, "metadata": "", "msgType": ""}), 1)
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