def get_client_class(api_name, version, version_map):
"""Returns the client class for the requested API version
:param api_name: the name of the API, e.g. 'compute', 'image', etc
:param version: the requested API version
:param version_map: a dict of client classes keyed by version
:rtype: a client class for the requested API version
"""
try:
client_path = version_map[str(version)]
except (KeyError, ValueError):
msg = "Invalid %s client version '%s'. must be one of: %s" % (
(api_name, version, ', '.join(version_map.keys())))
raise exceptions.UnsupportedVersion(msg)
return import_class(client_path)
def make_client(instance):
"""Returns a baremetal service client."""
try:
baremetal_client = ironic_client.get_client_class(
instance._api_version[API_NAME])
except Exception:
msg = (_("Invalid %(api_name)s client version '%(ver)s'. Must be one "
"of %(supported_ver)s") % {
'api_name': API_NAME,
'ver': instance._api_version[API_NAME],
'supported_ver': ", ".join(sorted(API_VERSIONS))
})
raise exceptions.UnsupportedVersion(msg)
LOG.debug('Instantiating baremetal client: %s', baremetal_client)
client = baremetal_client(
os_ironic_api_version=instance._api_version[API_NAME],
session=instance.session,
region_name=instance._region_name,
endpoint=instance.auth_ref.auth_url,
)
return client
