def test_view_that_returns_valid_types_and_units_for_meters(self):
url = reverse('api:v3:meters-valid-types-units')
result = self.client.get(url)
result_dict = ast.literal_eval(result.content.decode("utf-8"))
expectation = {
type: list(units.keys())
for type, units in kbtu_thermal_conversion_factors("US").items()
}
self.assertEqual(result_dict, expectation)
def valid_types_units(self, request):
"""
Returns the valid type for units.
The valid type and unit combinations are built from US Thermal Conversion
values. As of this writing, the valid combinations are the same as for
Canadian conversions, even though the actual factors may differ between
the two.
(https://portfoliomanager.energystar.gov/pdf/reference/Thermal%20Conversions.pdf)
"""
return {
type: list(units.keys())
for type, units in kbtu_thermal_conversion_factors("US").items()
}
def __init__(self, xml_file):
self._xml_file = xml_file
self._cache_data = None
# Codes taken from https://bedes.lbl.gov/sites/default/files/Green%20Button%20V0.7.2%20to%20BEDES%20V2.1%20Mapping%2020170927.pdf
self.kind_codes = {
0: 'Electric - Grid', # listed as 'electricity'
1: 'Natural Gas', # listed as 'gas'
}
self.uom_codes = {
31: 'J',
42: 'cubic meters', # listed as 'm3'
72: 'Wh',
119: 'cf', # listed as 'ft3'
132: 'Btu', # listed as 'btu'
169: 'therms', # listed as 'therm'
}
self.power_of_ten_codes = {
-12: 'p', # Pico: 10^-12
-9: 'n', # Nano: 10^-9
-6: 'micro', # Micro: 10^-6
-3: 'm', # Milli: 10^-3
-1: 'd', # Deci: 10^-1
0: '', # N/A
1: 'da', # Deca: 10^1
2: 'h', # Hecto: 10^2
3: 'k', # Kilo: 10^3
6: 'M', # Mega: 10^6
9: 'G', # Giga: 10^9
12: 'T', # Tera: 10^12
}
# US factors work for CAN factors as this is only used to find valid unit types for a given energy type
self._thermal_factors = kbtu_thermal_conversion_factors("US")
# These are the valid unit prefixes found in thermal conversions
self.thermal_factor_prefixes = {
'k': 3,
'M': 6,
'G': 9,
'c': 2,
}
def factors(self):
if self._cache_factors is None:
self._cache_factors = kbtu_thermal_conversion_factors(
self._org_country)
return self._cache_factors
def valid_type_and_unit_combinations(country):
return {
type: [unit for unit in unit_factors.keys()]
for type, unit_factors in kbtu_thermal_conversion_factors(
country).items()
}
def valid_types_units(self, request):
return {
type: list(units.keys())
for type, units in kbtu_thermal_conversion_factors("US").items()
}