112 lines
3.3 KiB
Python
112 lines
3.3 KiB
Python
#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import pecan
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from pecan import rest
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from wsme import types as wtypes
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from ekko.api.controllers import base
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from ekko.api.controllers import v1
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from ekko.api.controllers.v1 import versions
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from ekko.api import expose
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ID_VERSION1 = 'v1'
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class Version(base.APIBase):
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"""An API version representation.
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This class represents an API version, including the minimum and
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maximum minor versions that are supported within the major version.
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"""
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id = wtypes.text
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"""The ID of the (major) version, also acts as the release number"""
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status = wtypes.text
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"""Status of the version.
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One of:
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* CURRENT - the latest version of API,
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* SUPPORTED - supported, but not latest, version of API,
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* DEPRECATED - supported, but deprecated, version of API.
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"""
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version = wtypes.text
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"""The current, maximum supported (major.minor) version of API."""
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min_version = wtypes.text
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"""Minimum supported (major.minor) version of API."""
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def __init__(self, id, min_version, version, status='CURRENT'):
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self.id = id
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self.status = status
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self.version = version
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self.min_version = min_version
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class Root(base.APIBase):
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name = wtypes.text
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"""The name of the API"""
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description = wtypes.text
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"""Some information about this API"""
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versions = [Version]
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"""Links to all the versions available in this API"""
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default_version = Version
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"""A link to the default version of the API"""
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@staticmethod
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def convert():
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root = Root()
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root.name = "OpenStack Ekko API"
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root.description = ("Block-based backups stored in object-storage.")
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root.default_version = Version(ID_VERSION1,
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versions.MIN_VERSION_STRING,
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versions.MAX_VERSION_STRING)
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root.versions = [root.default_version]
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return root
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class RootController(rest.RestController):
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_versions = [ID_VERSION1]
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"""All supported API versions"""
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_default_version = ID_VERSION1
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"""The default API version"""
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v1 = v1.Controller()
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@expose.expose(Root)
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def get(self):
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# NOTE: The reason why convert() it's being called for every
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# request is because we need to get the host url from
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# the request object to make the links.
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return Root.convert()
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@pecan.expose()
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def _route(self, args):
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"""Overrides the default routing behavior.
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It redirects the request to the default version of the ekko API
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if the version number is not specified in the url.
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"""
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if args[0] and args[0] not in self._versions:
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args = [self._default_version] + args
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return super(RootController, self)._route(args)
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