gyan/gyan/api/controllers/root.py

98 lines
2.9 KiB
Python

# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import pecan
from pecan import rest
from gyan.api.controllers import base
from gyan.api.controllers import link
from gyan.api.controllers import v1
from gyan.api.controllers import versions
class Version(base.APIBase):
"""An API version representation."""
fields = (
'id',
'links',
'status',
'max_version',
'min_version'
)
@staticmethod
def convert(id, status, max, min):
version = Version()
version.id = id
version.links = [link.make_link('self', pecan.request.host_url,
id, '', bookmark=True)]
version.status = status
version.max_version = max
version.min_version = min
return version
class Root(base.APIBase):
fields = (
'name',
'description',
'versions',
'default_version',
)
@staticmethod
def convert():
root = Root()
root.name = "OpenStack Gyan API"
root.description = ("Gyan is an OpenStack project which aims to "
"provide ML infra service.")
root.versions = [Version.convert('v1', "CURRENT",
versions.CURRENT_MAX_VER,
versions.BASE_VER)]
root.default_version = Version.convert('v1', "CURRENT",
versions.CURRENT_MAX_VER,
versions.BASE_VER)
return root
class RootController(rest.RestController):
_versions = ['v1']
"""All supported API versions"""
_default_version = 'v1'
"""The default API version"""
v1 = v1.Controller()
@pecan.expose('json')
def get(self):
# NOTE: The reason why convert() it's being called for every
# request is because we need to get the host url from
# the request object to make the links.
return Root.convert()
@pecan.expose()
def _route(self, args):
"""Overrides the default routing behavior.
It redirects the request to the default version of the gyan API
if the version number is not specified in the url.
"""
if args[0] and args[0] not in self._versions:
args = [self._default_version] + args
return super(RootController, self)._route(args)