def check_object_version(server, client): try: client_major, _client_minor = client.split('.') server_major, _server_minor = server.split('.') client_minor = int(_client_minor) server_minor = int(_server_minor) except ValueError: raise exception.IncompatibleObjectVersion(_('Invalid version string')) if client_major != server_major: raise exception.IncompatibleObjectVersion( dict(client=client_major, server=server_major)) if client_minor > server_minor: raise exception.IncompatibleObjectVersion( dict(client=client_minor, server=server_minor))
def obj_class_from_name(cls, objname, objver): """Returns a class from the registry based on a name and version.""" if objname not in cls._obj_classes: LOG.error( _LE('Unable to instantiate unregistered object type ' '%(objtype)s'), dict(objtype=objname)) raise exception.UnsupportedObjectError(objtype=objname) # NOTE(comstud): If there's not an exact match, return the highest # compatible version. The objects stored in the class are sorted # such that highest version is first, so only set compatible_match # once below. compatible_match = None for objclass in cls._obj_classes[objname]: if objclass.VERSION == objver: return objclass if (not compatible_match and versionutils.is_compatible(objver, objclass.VERSION)): compatible_match = objclass if compatible_match: return compatible_match # As mentioned above, latest version is always first in the list. latest_ver = cls._obj_classes[objname][0].VERSION raise exception.IncompatibleObjectVersion(objname=objname, objver=objver, supported=latest_ver)
def obj_class_from_name(cls, objname, objver): """Returns a class from the registry based on a name and version.""" if objname not in cls._obj_classes: LOG.error( _('Unable to instantiate unregistered object type ' '%(objtype)s') % dict(objtype=objname)) raise exception.UnsupportedObjectError(objtype=objname) latest = None compatible_match = None for objclass in cls._obj_classes[objname]: if objclass.VERSION == objver: return objclass version_bits = tuple([int(x) for x in objclass.VERSION.split(".")]) if latest is None: latest = version_bits elif latest < version_bits: latest = version_bits if versionutils.is_compatible(objver, objclass.VERSION): compatible_match = objclass if compatible_match: return compatible_match latest_ver = '%i.%i' % latest raise exception.IncompatibleObjectVersion(objname=objname, objver=objver, supported=latest_ver)
def obj_class_from_name(cls, objname, objver): """Returns a class from the registry based on a name and version.""" if objname not in cls._obj_classes: LOG.error(_('Unable to instantiate unregistered object type ' '%(objtype)s') % dict(objtype=objname)) raise exception.UnsupportedObjectError(objtype=objname) compatible_match = None for objclass in cls._obj_classes[objname]: if objclass.VERSION == objver: return objclass if versionutils.is_compatible(objver, objclass.VERSION): compatible_match = objclass if compatible_match: return compatible_match raise exception.IncompatibleObjectVersion(objname=objname, objver=objver)