def RecordLSHFactory(pipeline, fields, filter_={}, field_weights = None):
name = __LSHName__(fields, filter_)
broker = Broker(pipeline)
try:
i = broker.download_obj(name)
i.LSH = {}
for key in i.fields:
i.LSH[key] = broker.download_obj('{}_{}'.format(name,key))
assert isinstance(i, RecordLSH)
return i
except AssertionError:
return RecordLSH(pipeline, fields, filter_=filter_, field_weights = field_weights)
