def get_device_profile_groups(self, dp_name):
"""Get list of profile group objects from the device profile.
Cyborg API returns: {"device_profiles": [<device_profile>]}
See module notes above for further details.
:param dp_name: string: device profile name
Expected to be valid, not None or ''.
:returns: [objects.RequestGroup]
:raises: DeviceProfileError
"""
dp_list = self._get_device_profile_list(dp_name)
if not dp_list:
msg = _('Expected 1 device profile but got nothing.')
raise exception.DeviceProfileError(name=dp_name, msg=msg)
if len(dp_list) != 1:
err = _('Expected 1 device profile but got %s.') % len(dp_list)
raise exception.DeviceProfileError(name=dp_name, msg=err)
dp_groups = dp_list[0]['groups']
request_groups = []
for dp_group_id, dp_group in enumerate(dp_groups):
req_id = get_device_profile_group_requester_id(dp_group_id)
rg = objects.RequestGroup(requester_id=req_id)
for key, val in dp_group.items():
match = schedutils.ResourceRequest.XS_KEYPAT.match(key)
if not match:
continue # could be 'accel:foo=bar', skip it
prefix, _ignore, name = match.groups()
if prefix == schedutils.ResourceRequest.XS_RES_PREFIX:
rg.add_resource(rclass=name, amount=val)
elif prefix == schedutils.ResourceRequest.XS_TRAIT_PREFIX:
rg.add_trait(trait_name=name, trait_type=val)
request_groups.append(rg)
return request_groups
def _get_device_profile_list(self, dp_name):
query = {"name": dp_name}
err_msg = None
resp, err_msg = self._call_cyborg(self._client.get,
self.DEVICE_PROFILE_URL, params=query)
if err_msg:
raise exception.DeviceProfileError(name=dp_name, msg=err_msg)
return resp.json().get('device_profiles')