def _create_lcia_quantity(self, o, load_all_flows=False):
ns = find_ns(o.nsmap, 'LCIAMethod')
u = str(find_common(o, 'UUID')[0])
n = str(find_common(o, 'name')[0])
c = str(find_common(o, 'generalComment')[0])
m = '; '.join([str(x) for x in find_tag(o, 'methodology', ns=ns)])
ic = '; '.join([str(x) for x in find_tag(o, 'impactCategory', ns=ns)])
ii = '; '.join([str(x) for x in find_tag(o, 'impactIndicator', ns=ns)])
ry = str(find_tag(o, 'referenceYear', ns=ns)[0])
dur = str(find_tag(o, 'duration', ns=ns)[0])
r_uuid, r_uri = get_reference_quantity(o, ns=ns)
rq = self._check_or_retrieve_child(r_uuid, r_uri)
lcia = LcQuantity(u, Name=n, Comment=c, Method=m, Category=ic, Indicator=ii, ReferenceYear=ry, Duration=dur)
lcia.set_external_ref('%s/%s' % (typeDirs['LCIAMethod'], u))
lcia.reference_entity = rq.reference_entity
self.add(lcia)
for factor in o['characterisationFactors'].getchildren(): # British spelling! brits aren't even IN the EU anymore
f_uuid, f_uri, f_dir = get_flow_ref(factor, ns=ns)
if self[f_uuid] is None:
if not load_all_flows:
# don't bother loading factors for flows that don't exist
continue
cf = float(find_tag(factor, 'meanValue', ns=ns)[0])
loc = str(find_tag(factor, 'location', ns=ns)[0])
if loc == '':
loc = None
flow = self._check_or_retrieve_child(f_uuid, f_uri)
# TODO: adjust CF for different reference units!!! do this when a live one is found
flow.add_characterization(lcia, value=cf, location=loc)
def get_reference_quantity(q, ns=None):
ref_to_ref = find_tag(q, 'referenceQuantity', ns=ns)[0]
ug_uuid = ref_to_ref.attrib['refObjectId']
ug_uri = ref_to_ref.attrib['uri']
return ug_uuid, ug_uri
def get_cf_value(exch, ns=None):
try:
v = float(find_tag(exch, 'resultingAmount', ns=ns)[0])
except ValueError:
v = None
return v