def _columns_filter_helper(columns):
"""Creates a union filter for a list of columns.
:type columns: list
:param columns: Iterable containing column names (as strings). Each column
name can be either
* an entire column family: ``fam`` or ``fam:``
* a single column: ``fam:col``
:rtype: :class:`RowFilter <gcloud.bigtable.row.RowFilter>`
:returns: The union filter created containing all of the matched columns.
:raises: :class:`ValueError <exceptions.ValueError>` if there are no
filters to union.
"""
filters = []
for column_family_id, column_qualifier in _get_column_pairs(columns):
fam_filter = FamilyNameRegexFilter(column_family_id)
if column_qualifier is not None:
qual_filter = ColumnQualifierRegexFilter(column_qualifier)
combined_filter = RowFilterChain(
filters=[fam_filter, qual_filter])
filters.append(combined_filter)
else:
filters.append(fam_filter)
num_filters = len(filters)
if num_filters == 0:
raise ValueError('Must have at least one filter.')
elif num_filters == 1:
return filters[0]
else:
return RowFilterUnion(filters=filters)
def _columns_filter_helper(columns):
"""Creates a union filter for a list of columns.
:type columns: list
:param columns: Iterable containing column names (as strings). Each column
name can be either
* an entire column family: ``fam`` or ``fam:``
* a single column: ``fam:col``
:rtype: :class:`RowFilter <gcloud.bigtable.row.RowFilter>`
:returns: The union filter created containing all of the matched columns.
:raises: :class:`ValueError <exceptions.ValueError>` if there are no
filters to union.
"""
filters = []
for column_family_id, column_qualifier in _get_column_pairs(columns):
fam_filter = FamilyNameRegexFilter(column_family_id)
if column_qualifier is not None:
qual_filter = ColumnQualifierRegexFilter(column_qualifier)
combined_filter = RowFilterChain(filters=[fam_filter, qual_filter])
filters.append(combined_filter)
else:
filters.append(fam_filter)
num_filters = len(filters)
if num_filters == 0:
raise ValueError('Must have at least one filter.')
elif num_filters == 1:
return filters[0]
else:
return RowFilterUnion(filters=filters)
def _callFUT(self, *args, **kwargs):
from gcloud.bigtable.happybase.batch import _get_column_pairs
return _get_column_pairs(*args, **kwargs)
def _callFUT(self, *args, **kwargs):
from gcloud.bigtable.happybase.batch import _get_column_pairs
return _get_column_pairs(*args, **kwargs)
