def _choose_host_filters(self, filter_cls_names):
"""Since the caller may specify which filters to use we need
to have an authoritative list of what is permissible. This
function checks the filter names against a predefined set
of acceptable filters.
"""
if filter_cls_names is None:
filter_cls_names = CONF.scheduler_default_filters
if not isinstance(filter_cls_names, (list, tuple)):
filter_cls_names = [filter_cls_names]
good_filters = []
bad_filters = []
for filter_name in filter_cls_names:
if filter_name not in self.filter_obj_map:
if filter_name not in self.filter_cls_map:
bad_filters.append(filter_name)
continue
filter_cls = self.filter_cls_map[filter_name]
self.filter_obj_map[filter_name] = filter_cls()
good_filters.append(self.filter_obj_map[filter_name])
if bad_filters:
msg = ", ".join(bad_filters)
raise exception.SchedulerHostFilterNotFound(filter_name=msg)
return good_filters
def _choose_host_filters(self, filter_cls_names):
"""Since the caller may specify which filters to use we need
to have an authoritative list of what is permissible. This
function checks the filter names against a predefined set
of acceptable filters.
"""
if filter_cls_names is None:
filter_cls_names = CONF.scheduler_default_filters
if not isinstance(filter_cls_names, (list, tuple)):
filter_cls_names = [filter_cls_names]
good_filters = []
bad_filters = []
for filter_name in filter_cls_names:
found_class = False
for cls in self.filter_classes:
if cls.__name__ == filter_name:
good_filters.append(cls)
found_class = True
break
if not found_class:
bad_filters.append(filter_name)
if bad_filters:
msg = ", ".join(bad_filters)
raise exception.SchedulerHostFilterNotFound(filter_name=msg)
return good_filters
def choose_host_filter(filter_name=None):
"""Since the caller may specify which filter to use we need
to have an authoritative list of what is permissible. This
function checks the filter name against a predefined set
of acceptable filters.
"""
if not filter_name:
filter_name = FLAGS.default_host_filter
for filter_class in _get_filters():
if filter_class.__name__ == filter_name:
return filter_class()
raise exception.SchedulerHostFilterNotFound(filter_name=filter_name)
