def _choose_host_weighers(self, weight_cls_names):
"""Return a list of available weigher names.
This function checks input weigher names against a predefined set
of acceptable weighers (all loaded weighers). If input is None,
it uses CONF.scheduler_default_weighers instead.
"""
if weight_cls_names is None:
weight_cls_names = CONF.scheduler_default_weighers
if not isinstance(weight_cls_names, (list, tuple)):
weight_cls_names = [weight_cls_names]
good_weighers = []
bad_weighers = []
for weigher_name in weight_cls_names:
found_class = False
for cls in self.weight_classes:
if cls.__name__ == weigher_name:
good_weighers.append(cls)
found_class = True
break
if not found_class:
bad_weighers.append(weigher_name)
if bad_weighers:
msg = ", ".join(bad_weighers)
raise exception.SchedulerHostWeigherNotFound(weigher_name=msg)
return good_weighers
def _choose_host_weighers(self, weight_cls_names):
"""Since the caller may specify which weighers to use, we need
to have an authoritative list of what is permissible. This
function checks the weigher names against a predefined set
of acceptable weighers.
"""
if weight_cls_names is None:
weight_cls_names = FLAGS.scheduler_default_weighers
if not isinstance(weight_cls_names, (list, tuple)):
weight_cls_names = [weight_cls_names]
good_weighers = []
bad_weighers = []
for weigher_name in weight_cls_names:
found_class = False
for cls in self.weight_classes:
if cls.__name__ == weigher_name:
good_weighers.append(cls)
found_class = True
break
if not found_class:
bad_weighers.append(weigher_name)
if bad_weighers:
msg = ", ".join(bad_weighers)
raise exception.SchedulerHostWeigherNotFound(weigher_name=msg)
return good_weighers
