def instantiate(self, rank, version, userFeatures, productFeatures):
"""
Instantiate an ALS `Model` from the model store data
:param rank: ALS rank
:param version: `Model` version
:param userFeatures: A list of user features
:param productFeatures: A list of product features
:return: A `Model` instance
"""
jvm = self._sc._gateway.jvm
als_model = jvm.io.radanalytics.als.ALSSerializer.instantiateModel(
rank, userFeatures, productFeatures)
wrapper = jvm.org.apache.spark.mllib.api.python.MatrixFactorizationModelWrapper(
als_model)
model = Model(sc=self._sc,
als_model=MatrixFactorizationModel(wrapper),
version=version,
data_version=1)
return model
