def state_view():
"""State view.
This returns a little html snippet with a plot of the most recent state of the asset.
TODO: This is legacy ― it uses the old database model.
"""
asset_id = request.args.get("id")
try:
int(asset_id)
except ValueError:
return """<script type="text/javascript">
console.log("State not available. Asset not officially registered.");
</script>"""
# TODO: try Sensor, then Asset (legacy)?
asset = Asset.query.filter(Asset.id == asset_id).one_or_none()
if asset is None:
return """"<script type="text/javascript">
console.log("State not available. No asset found.");
</script>"""
if not can_access_asset(asset):
return """<script type="text/javascript">
console.log("State not available. No access rights for this asset.");
</script>"""
time_str, plot_html_str = legacy_get_latest_power_as_plot(asset, small=True)
return plot_html_str
def get_device_message_response(generic_asset_name_groups, duration):
unit = "MW"
planning_horizon = min(
duration, current_app.config.get("FLEXMEASURES_PLANNING_HORIZON"))
if not has_assets():
current_app.logger.info("User doesn't seem to have any assets.")
value_groups = []
new_event_groups = []
for event_group in generic_asset_name_groups:
for event in event_group:
# Parse the entity address
try:
ea = parse_entity_address(event,
entity_type="event",
fm_scheme="fm0")
except EntityAddressException as eae:
return invalid_domain(str(eae))
sensor_id = ea["asset_id"]
event_id = ea["event_id"]
event_type = ea["event_type"]
# Look for the Sensor object
sensor = Sensor.query.filter(Sensor.id == sensor_id).one_or_none()
if sensor is None or not can_access_asset(sensor):
current_app.logger.warning(
"Cannot identify sensor given the event %s." % event)
return unrecognized_connection_group()
if sensor.generic_asset.generic_asset_type.name not in (
"battery",
"one-way_evse",
"two-way_evse",
):
return invalid_domain(
f"API version 1.3 only supports device messages for batteries and Electric Vehicle Supply Equipment (EVSE). "
f"Sensor ID:{sensor_id} does not belong to a battery or EVSE, but {p.a(sensor.generic_asset.generic_asset_type.description)}."
)
# Use the event_id to look up the schedule start
if event_type not in ("soc", "soc-with-targets"):
return unrecognized_event_type(event_type)
connection = current_app.queues["scheduling"].connection
try: # First try the scheduling queue
job = Job.fetch(event, connection=connection)
except NoSuchJobError: # Then try the most recent event_id (stored as a generic asset attribute)
if event_id == sensor.generic_asset.get_attribute(
"soc_udi_event_id"):
schedule_start = datetime.fromisoformat(
sensor.generic_asset.get_attribute("soc_datetime"))
message = (
"Your UDI event is the most recent event for this device, but "
)
else:
return unrecognized_event(event_id, event_type)
else:
if job.is_finished:
message = "A scheduling job has been processed based on your UDI event, but "
elif job.is_failed: # Try to inform the user on why the job failed
e = job.meta.get(
"exception",
Exception(
"The job does not state why it failed. "
"The worker may be missing an exception handler, "
"or its exception handler is not storing the exception as job meta data."
),
)
return unknown_schedule(
f"Scheduling job failed with {type(e).__name__}: {e}")
elif job.is_started:
return unknown_schedule("Scheduling job in progress.")
elif job.is_queued:
return unknown_schedule(
"Scheduling job waiting to be processed.")
elif job.is_deferred:
try:
preferred_job = job.dependency
except NoSuchJobError:
return unknown_schedule(
"Scheduling job waiting for unknown job to be processed."
)
return unknown_schedule(
f'Scheduling job waiting for {preferred_job.status} job "{preferred_job.id}" to be processed.'
)
else:
return unknown_schedule(
"Scheduling job has an unknown status.")
schedule_start = job.kwargs["start"]
schedule_data_source_name = "Seita"
scheduler_source = DataSource.query.filter_by(
name="Seita", type="scheduling script").one_or_none()
if scheduler_source is None:
return unknown_schedule(
message +
f'no data is known from "{schedule_data_source_name}".')
power_values = sensor.search_beliefs(
event_starts_after=schedule_start,
event_ends_before=schedule_start + planning_horizon,
source=scheduler_source,
most_recent_beliefs_only=True,
one_deterministic_belief_per_event=True,
)
# For consumption schedules, positive values denote consumption. For the db, consumption is negative
consumption_schedule = -simplify_index(power_values)["event_value"]
if consumption_schedule.empty:
return unknown_schedule(
message + "the schedule was not found in the database.")
# Update the planning window
resolution = sensor.event_resolution
start = consumption_schedule.index[0]
duration = min(duration,
consumption_schedule.index[-1] + resolution - start)
consumption_schedule = consumption_schedule[start:start +
duration - resolution]
value_groups.append(consumption_schedule.tolist())
new_event_groups.append(event)
response = groups_to_dict(new_event_groups,
value_groups,
generic_asset_type_name="event")
response["start"] = isodate.datetime_isoformat(start)
response["duration"] = isodate.duration_isoformat(duration)
response["unit"] = unit
d, s = request_processed()
return dict(**response, **d), s
def post_udi_event_response(unit: str, prior: datetime):
if not has_assets():
current_app.logger.info("User doesn't seem to have any assets.")
form = get_form_from_request(request)
if "datetime" not in form:
return invalid_datetime("Missing datetime parameter.")
else:
datetime = parse_isodate_str(form.get("datetime"))
if datetime is None:
return invalid_datetime(
"Cannot parse datetime string %s as iso date" %
form.get("datetime"))
if datetime.tzinfo is None:
current_app.logger.warning(
"Cannot parse timezone of 'datetime' value %s" %
form.get("datetime"))
return invalid_timezone(
"Datetime should explicitly state a timezone.")
# parse event/address info
if "event" not in form:
return invalid_domain("No event identifier sent.")
try:
ea = parse_entity_address(form.get("event"),
entity_type="event",
fm_scheme="fm0")
except EntityAddressException as eae:
return invalid_domain(str(eae))
sensor_id = ea["asset_id"]
event_id = ea["event_id"]
event_type = ea["event_type"]
if event_type not in ("soc", "soc-with-targets"):
return unrecognized_event_type(event_type)
# Look for the Sensor object
sensor = Sensor.query.filter_by(id=sensor_id).one_or_none()
if sensor is None or not can_access_asset(sensor):
current_app.logger.warning("Cannot identify sensor via %s." % ea)
return unrecognized_connection_group()
if sensor.generic_asset.generic_asset_type.name not in (
"battery",
"one-way_evse",
"two-way_evse",
):
return invalid_domain(
f"API version 1.3 only supports UDI events for batteries and Electric Vehicle Supply Equipment (EVSE). "
f"Sensor ID:{sensor_id} does not belong to a battery or EVSE, but {p.a(sensor.generic_asset.generic_asset_type.description)}."
)
# unless on play, keep events ordered by entry date and ID
if current_app.config.get("FLEXMEASURES_MODE") != "play":
# do not allow new date to precede previous date
if isinstance(sensor.generic_asset.get_attribute("soc_datetime"),
str) and datetime < datetime.fromisoformat(
sensor.generic_asset.get_attribute("soc_datetime")):
msg = "The date of the requested UDI event (%s) is earlier than the latest known date (%s)." % (
datetime,
datetime.fromisoformat(
sensor.generic_asset.get_attribute("soc_datetime")),
)
current_app.logger.warning(msg)
return invalid_datetime(msg)
# check if udi event id is higher than existing
if sensor.generic_asset.get_attribute("soc_udi_event_id") is not None:
if sensor.generic_asset.get_attribute(
"soc_udi_event_id") >= event_id:
return outdated_event_id(
event_id,
sensor.generic_asset.get_attribute("soc_udi_event_id"))
# get value
if "value" not in form:
return ptus_incomplete()
try:
value = float(form.get("value"))
except ValueError:
extra_info = "Request includes empty or ill-formatted value(s)."
current_app.logger.warning(extra_info)
return ptus_incomplete(extra_info)
if unit == "kWh":
value = value / 1000.0
# get optional efficiency
roundtrip_efficiency = form.get("roundtrip_efficiency", None)
# get optional min and max SOC
soc_min = form.get("soc_min", None)
soc_max = form.get("soc_max", None)
if soc_min is not None and unit == "kWh":
soc_min = soc_min / 1000.0
if soc_max is not None and unit == "kWh":
soc_max = soc_max / 1000.0
# set soc targets
start_of_schedule = datetime
end_of_schedule = datetime + current_app.config.get(
"FLEXMEASURES_PLANNING_HORIZON")
resolution = sensor.event_resolution
soc_targets = pd.Series(
np.nan,
index=pd.date_range(
start_of_schedule,
end_of_schedule,
freq=resolution,
closed="right"
), # note that target values are indexed by their due date (i.e. closed="right")
)
if event_type == "soc-with-targets":
if "targets" not in form:
return incomplete_event(
event_id,
event_type,
"Cannot process event %s with missing targets." %
form.get("event"),
)
for target in form.get("targets"):
# get target value
if "value" not in target:
return ptus_incomplete("Target missing value parameter.")
try:
target_value = float(target["value"])
except ValueError:
extra_info = "Request includes empty or ill-formatted target value(s)."
current_app.logger.warning(extra_info)
return ptus_incomplete(extra_info)
if unit == "kWh":
target_value = target_value / 1000.0
# get target datetime
if "datetime" not in target:
return invalid_datetime("Target missing datetime parameter.")
else:
target_datetime = parse_isodate_str(target["datetime"])
if target_datetime is None:
return invalid_datetime(
"Cannot parse target datetime string %s as iso date" %
target["datetime"])
if target_datetime.tzinfo is None:
current_app.logger.warning(
"Cannot parse timezone of target 'datetime' value %s" %
target["datetime"])
return invalid_timezone(
"Target datetime should explicitly state a timezone.")
if target_datetime > end_of_schedule:
return invalid_datetime(
f'Target datetime exceeds {end_of_schedule}. Maximum scheduling horizon is {current_app.config.get("FLEXMEASURES_PLANNING_HORIZON")}.'
)
target_datetime = target_datetime.astimezone(
soc_targets.index.tzinfo
) # otherwise DST would be problematic
# set target
soc_targets.loc[target_datetime] = target_value
create_scheduling_job(
sensor_id,
start_of_schedule,
end_of_schedule,
resolution=resolution,
belief_time=prior, # server time if no prior time was sent
soc_at_start=value,
soc_targets=soc_targets,
soc_min=soc_min,
soc_max=soc_max,
roundtrip_efficiency=roundtrip_efficiency,
job_id=form.get("event"),
enqueue=True,
)
# Store new soc info as GenericAsset attributes
sensor.generic_asset.set_attribute("soc_datetime", datetime.isoformat())
sensor.generic_asset.set_attribute("soc_udi_event_id", event_id)
sensor.generic_asset.set_attribute("soc_in_mwh", value)
db.session.commit()
return request_processed()
def get_device_message_response(generic_asset_name_groups, duration):
unit = "MW"
min_planning_horizon = timedelta(
hours=24
) # user can request a shorter planning, but the scheduler takes into account at least this horizon
planning_horizon = min(
max(min_planning_horizon, duration),
current_app.config.get("FLEXMEASURES_PLANNING_HORIZON"),
)
if not has_assets():
current_app.logger.info("User doesn't seem to have any assets.")
value_groups = []
new_event_groups = []
for event_group in generic_asset_name_groups:
for event in event_group:
# Parse the entity address
try:
ea = parse_entity_address(event,
entity_type="event",
fm_scheme="fm0")
except EntityAddressException as eae:
return invalid_domain(str(eae))
sensor_id = ea["asset_id"]
event_id = ea["event_id"]
event_type = ea["event_type"]
# Look for the Sensor object
sensor = Sensor.query.filter(Sensor.id == sensor_id).one_or_none()
if sensor is None or not can_access_asset(sensor):
current_app.logger.warning(
"Cannot identify sensor given the event %s." % event)
return unrecognized_connection_group()
if sensor.generic_asset.generic_asset_type.name != "battery":
return invalid_domain(
"API version 1.2 only supports device messages for batteries. "
"Sensor ID:%s does not belong to a battery." % sensor_id)
if event_type != "soc" or event_id != sensor.generic_asset.get_attribute(
"soc_udi_event_id"):
return unrecognized_event(event_id, event_type)
start = datetime.fromisoformat(
sensor.generic_asset.get_attribute("soc_datetime"))
resolution = sensor.event_resolution
# Schedule the asset
try:
schedule = schedule_battery(
sensor,
start,
start + planning_horizon,
resolution,
soc_at_start=sensor.generic_asset.get_attribute(
"soc_in_mwh"),
prefer_charging_sooner=False,
)
except UnknownPricesException:
return unknown_prices()
except UnknownMarketException:
return invalid_market()
else:
# Update the planning window
start = schedule.index[0]
duration = min(duration,
schedule.index[-1] + resolution - start)
schedule = schedule[start:start + duration - resolution]
value_groups.append(schedule.tolist())
new_event_groups.append(event)
response = groups_to_dict(new_event_groups,
value_groups,
generic_asset_type_name="event")
response["start"] = isodate.datetime_isoformat(start)
response["duration"] = isodate.duration_isoformat(duration)
response["unit"] = unit
d, s = request_processed()
return dict(**response, **d), s
def post_udi_event_response(unit): # noqa: C901
if not has_assets():
current_app.logger.info("User doesn't seem to have any assets.")
form = get_form_from_request(request)
# check datetime, or use server_now
if "datetime" not in form:
return invalid_datetime("Missing datetime parameter.")
else:
datetime = parse_isodate_str(form.get("datetime"))
if datetime is None:
return invalid_datetime(
"Cannot parse datetime string %s as iso date" %
form.get("datetime"))
if datetime.tzinfo is None:
current_app.logger.warning(
"Cannot parse timezone of 'datetime' value %s" %
form.get("datetime"))
return invalid_timezone(
"Datetime should explicitly state a timezone.")
# parse event/address info
if "event" not in form:
return invalid_domain("No event identifier sent.")
try:
ea = parse_entity_address(form.get("event"),
entity_type="event",
fm_scheme="fm0")
except EntityAddressException as eae:
return invalid_domain(str(eae))
sensor_id = ea["asset_id"]
event_id = ea["event_id"]
event_type = ea["event_type"]
if event_type != "soc":
return unrecognized_event(event_id, event_type)
# Look for the Sensor object
sensor = Sensor.query.filter(Sensor.id == sensor_id).one_or_none()
if sensor is None or not can_access_asset(sensor):
current_app.logger.warning("Cannot identify sensor via %s." % ea)
return unrecognized_connection_group()
if sensor.generic_asset.generic_asset_type.name != "battery":
return invalid_domain(
"API version 1.2 only supports UDI events for batteries. "
"Sensor ID:%s does not belong to a battery." % sensor_id)
# unless on play, keep events ordered by entry date and ID
if current_app.config.get("FLEXMEASURES_MODE") != "play":
# do not allow new date to be after last date
if (isinstance(sensor.generic_asset.get_attribute("soc_datetime"), str)
and datetime.fromisoformat(
sensor.generic_asset.get_attribute("soc_datetime")) >=
datetime):
msg = "The date of the requested UDI event (%s) is earlier than the latest known date (%s)." % (
datetime,
datetime.fromisoformat(
sensor.generic_asset.get_attribute("soc_datetime")),
)
current_app.logger.warning(msg)
return invalid_datetime(msg)
# check if udi event id is higher than existing
soc_udi_event_id = sensor.generic_asset.get_attribute(
"soc_udi_event_id")
if soc_udi_event_id is not None and soc_udi_event_id >= event_id:
return outdated_event_id(event_id, soc_udi_event_id)
# get value
if "value" not in form:
return ptus_incomplete()
value = form.get("value")
if unit == "kWh":
value = value / 1000.0
# Store new soc info as GenericAsset attributes
sensor.generic_asset.set_attribute("soc_datetime", datetime.isoformat())
sensor.generic_asset.set_attribute("soc_udi_event_id", event_id)
sensor.generic_asset.set_attribute("soc_in_mwh", value)
db.session.commit()
return request_processed("Request has been processed.")
def post_udi_event_response(unit): # noqa: C901
if not has_assets():
current_app.logger.info("User doesn't seem to have any assets.")
form = get_form_from_request(request)
# check datetime, or use server_now
if "datetime" not in form:
return invalid_datetime("Missing datetime parameter.")
else:
datetime = parse_isodate_str(form.get("datetime"))
if datetime is None:
return invalid_datetime(
"Cannot parse datetime string %s as iso date" % form.get("datetime")
)
if datetime.tzinfo is None:
current_app.logger.warning(
"Cannot parse timezone of 'datetime' value %s" % form.get("datetime")
)
return invalid_timezone("Datetime should explicitly state a timezone.")
# parse event/address info
if "event" not in form:
return invalid_domain("No event identifier sent.")
try:
ea = parse_entity_address(form.get("event"), entity_type="event")
except EntityAddressException as eae:
return invalid_domain(str(eae))
asset_id = ea["asset_id"]
event_id = ea["event_id"]
event_type = ea["event_type"]
if event_type != "soc":
return unrecognized_event(event_id, event_type)
# get asset
asset: Asset = Asset.query.filter_by(id=asset_id).one_or_none()
if asset is None or not can_access_asset(asset):
current_app.logger.warning("Cannot identify asset via %s." % ea)
return unrecognized_connection_group()
if asset.asset_type_name != "battery":
return invalid_domain(
"API version 1.2 only supports UDI events for batteries. Asset ID:%s is not a battery."
% asset_id
)
# unless on play, keep events ordered by entry date and ID
if current_app.config.get("FLEXMEASURES_MODE") != "play":
# do not allow new date to be after last date
if asset.soc_datetime is not None:
if asset.soc_datetime >= datetime:
msg = (
"The date of the requested UDI event (%s) is earlier than the latest known date (%s)."
% (datetime, asset.soc_datetime)
)
current_app.logger.warning(msg)
return invalid_datetime(msg)
# check if udi event id is higher than existing
if asset.soc_udi_event_id is not None:
if asset.soc_udi_event_id >= event_id:
return outdated_event_id(event_id, asset.soc_udi_event_id)
# get value
if "value" not in form:
return ptus_incomplete()
value = form.get("value")
if unit == "kWh":
value = value / 1000.0
# store new soc in asset
asset.soc_datetime = datetime
asset.soc_udi_event_id = event_id
asset.soc_in_mwh = value
db.session.commit()
return request_processed("Request has been processed.")