BaseSampleFormatter -- _provide_rows behavior depends on row_ids_provider instance type.

[nicolay-r]

According to this part:

AREkit/arekit/common/experiment/input/formatters/sample.py

Lines 172 to 213 in 9b83f93

	def __provide_rows(self, row_dict, parsed_news, linked_wrap, index_in_linked, idle_mode):
	"""
	Providing Rows depending on row_id_formatter type
	"""
	assert(isinstance(parsed_news, ParsedNews))
	assert(isinstance(row_dict, OrderedDict))
	assert(isinstance(linked_wrap, LinkedTextOpinionsWrapper))
	origin = linked_wrap.First
	if isinstance(self.__row_ids_provider, BinaryIDProvider):
	"""
	Enumerate all opinions as if it would be with the different label types.
	"""
	for label in self._label_provider.SupportedLabels:
	yield self.__create_row(row=row_dict,
	parsed_news=parsed_news,
	linked_wrap=self.__copy_modified_linked_wrap(linked_wrap, label),
	index_in_linked=index_in_linked,
	# TODO. provide uint_label
	etalon_label=origin.Sentiment,
	idle_mode=idle_mode)
	if isinstance(self.__row_ids_provider, MultipleIDProvider):
	yield self.__create_row(row=row_dict,
	parsed_news=parsed_news,
	linked_wrap=linked_wrap,
	index_in_linked=index_in_linked,
	# TODO. provide uint_label
	etalon_label=origin.Sentiment,
	idle_mode=idle_mode)
	@staticmethod
	def __copy_modified_linked_wrap(linked_wrap, label):
	assert(isinstance(linked_wrap, LinkedTextOpinionsWrapper))
	linked_opinions = [o for o in linked_wrap]
	copy = TextOpinion.create_copy(other=linked_opinions[0])
	copy.set_label(label=label)
	linked_opinions[0] = copy
	return LinkedTextOpinionsWrapper(linked_text_opinions=linked_opinions)

It is necessary to separate this and move into other providers, where the one is for BinaryIDType and the other is for MultipleIDType. Every provider should enumerate variants of linked_wraps (with different labels).
Binary type: Multiple linked_wraps
MultipleIDType: single linked_wraps