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Schedule.py
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Schedule.py
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#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# Copyright (C) 2015 by Christian Tremblay, P.Eng <christian.tremblay@servisys.com>
# Licensed under LGPLv3, see file LICENSE in this source tree.
#
"""
ScheduleWrite.py - creation of ReinitializeDeviceRequest
"""
from ..io.Read import find_reason
from ..io.IOExceptions import (
SegmentationNotSupported,
ReadPropertyException,
ReadPropertyMultipleException,
NoResponseFromController,
ApplicationNotStarted,
)
from ...core.utils.notes import note_and_log
# --- standard Python modules ---
import datetime as dt
# --- 3rd party modules ---
from bacpypes.pdu import Address, GlobalBroadcast
from bacpypes.primitivedata import Integer, Date, Time, CharacterString
from bacpypes.basetypes import DateTime
from bacpypes.apdu import WritePropertyRequest, SimpleAckPDU
from bacpypes.iocb import IOCB
from bacpypes.core import deferred
from bacpypes.basetypes import DateTime, DailySchedule, TimeValue, Time
from bacpypes.constructeddata import ArrayOf, Any
from bacpypes.primitivedata import Null, Atomic, Integer, Unsigned, Real, Enumerated
from datetime import time as dt_time
from datetime import datetime as dt
@note_and_log
class Schedule:
"""
Everything you need to write to a schedule
"""
WeeklySchedule = ArrayOf(DailySchedule)
schedules = {}
days = [
"monday",
"tuesday",
"wednesday",
"thursday",
"friday",
"saturday",
"sunday",
]
schedule_example_multistate = {
"states": {"Occupied": 1, "UnOccupied": 2, "Standby": 3, "Not Set": 4},
"week": {
"monday": [("1:00", "Occupied"), ("17:00", "UnOccupied")],
"tuesday": [("2:00", "Occupied"), ("17:00", "UnOccupied")],
"wednesday": [("3:00", "Occupied"), ("17:00", "UnOccupied")],
"thursday": [("4:00", "Occupied"), ("17:00", "UnOccupied")],
"friday": [("5:00", "Occupied"), ("17:00", "UnOccupied")],
"saturday": [("6:00", "Occupied"), ("17:00", "UnOccupied")],
"sunday": [("7:00", "Occupied"), ("17:00", "UnOccupied")],
},
}
schedule_example_binary = {
"states": {"inactive": 0, "active": 1},
"week": {
"monday": [("1:00", "active"), ("16:00", "inactive")],
"tuesday": [("2:00", "active"), ("16:00", "inactive")],
"wednesday": [("3:00", "active"), ("16:00", "inactive")],
"thursday": [("4:00", "active"), ("16:00", "inactive")],
"friday": [("5:00", "active"), ("16:00", "inactive")],
"saturday": [("6:00", "active"), ("16:00", "inactive")],
"sunday": [("7:00", "active"), ("16:00", "inactive")],
},
}
schedule_example_analog = {
"states": "analog",
"week": {
"monday": [("1:00", 22), ("18:00", 19)],
"tuesday": [("2:00", 22), ("18:00", 19)],
"wednesday": [("3:00", 22), ("18:00", 19)],
"thursday": [("4:00", 22), ("18:00", 19)],
"friday": [("5:00", 22), ("18:00", 19)],
"saturday": [("6:00", 22), ("18:00", 19)],
"sunday": [("7:00", 22), ("18:00", 19)],
},
}
def create_weeklySchedule(self, dict_schedule, object_reference=None):
"""
From a structured dict (see schedule_example), create a WeeklySchedule
an ArrayOf(DailySchedule)
"""
ds = dict_schedule
if object_reference is not None:
self.schedules[object_reference] = ds
def _set_value(v):
try:
if dict_schedule["states"].lower() == "analog":
return Real(v)
except AttributeError:
if dict_schedule["states"] == ["inactive", "active"]:
return Integer(dict_schedule["states"][v])
else:
return Enumerated(dict_schedule["states"][v] - 1)
daily_schedules = []
for day in Schedule.days:
list_of_events = dict_schedule["week"][day]
_daily_schedule = [
TimeValue(time=event[0], value=_set_value(event[1]))
for event in list_of_events
]
daily_schedules.append(DailySchedule(daySchedule=_daily_schedule))
return Schedule.WeeklySchedule(daily_schedules)
def make_weeklySchedule_request(self, destination, object_instance, weeklySchedule):
request = WritePropertyRequest(
objectIdentifier=("schedule", object_instance),
propertyIdentifier="weeklySchedule",
)
address = Address(destination)
request.pduDestination = address
request.propertyValue = Any()
request.propertyValue.cast_in(weeklySchedule)
request.priority = 15
return request
def send_weeklyschedule_request(self, request, timeout=10):
iocb = IOCB(request)
iocb.set_timeout(timeout)
deferred(self.this_application.request_io, iocb)
iocb.wait()
if iocb.ioResponse: # successful response
apdu = iocb.ioResponse
if not isinstance(apdu, SimpleAckPDU): # expect an ACK
self._log.warning("Not an ack, see debug for more infos.")
self._log.debug(
"Not an ack. | APDU : {} / {}".format((apdu, type(apdu)))
)
return
if iocb.ioError: # unsuccessful: error/reject/abort
apdu = iocb.ioError
reason = find_reason(apdu)
raise NoResponseFromController("APDU Abort Reason : {}".format(reason))
self._log.info(
"Schedule Write request sent to device : {}".format(request.pduDestination)
)
def write_weeklySchedule(self, destination, schedule_instance, schedule):
weeklyschedule = self.create_weeklySchedule(schedule)
request = self.make_weeklySchedule_request(
destination=destination,
object_instance=schedule_instance,
weeklySchedule=weeklyschedule,
)
self.send_weeklyschedule_request(request)
def read_weeklySchedule(self, address, schedule_instance):
"""
This function will turn the weeklySchedule received into a
human readable dict.
This dict can then be modified and used to write back to controller
using bacnet.write_weeklySchedule
"""
try:
(
_schedule,
object_references,
reliability,
priority,
presentValue,
) = self.readMultiple(
"{} schedule {} weeklySchedule listOfObjectPropertyReferences reliability priorityForWriting presentValue".format(
address, schedule_instance
)
)
except Exception:
# Read Multiple not supported... try single prop read
def _read(prop):
return self.read(
"{} schedule {} {}".format(address, schedule_instance, prop)
)
try:
_schedule = _read("weeklySchedule")
object_references = _read("listOfObjectPropertyReferences")
reliability = _read("reliability")
priority = _read("priorityForWriting")
presentValue = _read("presentValue")
except Exception:
raise ()
schedule = {}
_state_text = None
offset_MV = 0 if len(object_references) == 0 else 1
try:
first_obj_id = object_references[0]
obj_type, obj_instance = first_obj_id.objectIdentifier
if obj_type == "binaryValue":
_state_text = ["inactive", "active"]
elif "multi" in obj_type:
_state_text = self.read(
"{} {} {} stateText".format(address, obj_type, obj_instance)
)
elif "analog" in obj_type:
_state_text = "analog"
schedule["object_references"] = [
objectId.objectIdentifier for objectId in object_references
]
schedule["references_names"] = [
self.read(
"{} {} {} objectName".format(
address, each.objectIdentifier[0], each.objectIdentifier[1]
)
)
for each in object_references
]
except Exception as error:
self._log.error("Error {}".format(error))
# Not used in device, not linked...
_state_text = range(255)
schedule["object_references"] = []
schedule["references_names"] = []
schedule["states"] = {}
if _state_text == ["inactive", "active"]:
for i, each in enumerate(_state_text):
schedule["states"][each] = i
presentValue = "{} ({})".format(
list(schedule["states"].keys())[int(presentValue.value)],
presentValue.value,
)
elif _state_text != "analog":
for i, each in enumerate(_state_text):
schedule["states"][each] = i + offset_MV
try:
presentValue = "{} ({})".format(
list(schedule["states"].keys())[
int(presentValue.value) - offset_MV
],
presentValue.value,
)
except TypeError:
presentValue = presentValue.value
else:
schedule["states"] = _state_text
presentValue = "{}".format(presentValue.value)
schedule["reliability"] = reliability
schedule["priority"] = priority
schedule["presentValue"] = presentValue
schedule["week"] = self.decode_weeklySchedule(_schedule, _state_text, offset_MV)
return schedule
def decode_weeklySchedule(self, weeklySchedule, states, offset_MV):
week = {}
for i, day in enumerate(Schedule.days):
week[day] = self.decode_dailySchedule(weeklySchedule[i], states, offset_MV)
return week
def decode_dailySchedule(self, dailySchedule, states, offset_MV):
events = []
for each in dailySchedule.daySchedule:
hour, minute, second, hundreth = each.time
_time = dt_time(hour, minute, second, hundreth).strftime("%H:%M")
try:
if states == ["inactive", "active"]:
_value = states[int(each.value.value)]
elif states == "analog":
_value = float(each.value.value)
else:
_value = states[int(each.value.value) - offset_MV]
events.append((_time, _value))
except IndexError:
events.append((_time, "??? ({})".format(each.value.value)))
return events