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# Copyright 2021 OpenStack Foundation
# All Rights Reserved.
#
# 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.
from glanceclient.common import utils
from glanceclient import exc
TARGET_VALUES = ('both', 'cache', 'queue')
class Controller(object):
def __init__(self, http_client):
self.http_client = http_client
def is_supported(self, version):
if utils.has_version(self.http_client, version):
return True
else:
raise exc.HTTPNotImplemented(
'Glance does not support image caching API (v2.14)')
@utils.add_req_id_to_object()
def list(self):
if self.is_supported('v2.14'):
url = '/v2/cache'
resp, body = self.http_client.get(url)
return body, resp
@utils.add_req_id_to_object()
def delete(self, image_id):
if self.is_supported('v2.14'):
resp, body = self.http_client.delete('/v2/cache/%s' %
image_id)
return body, resp
@utils.add_req_id_to_object()
def clear(self, target):
if self.is_supported('v2.14'):
url = '/v2/cache'
headers = {}
if target != "both":
headers = {'x-image-cache-clear-target': target}
resp, body = self.http_client.delete(url, headers=headers)
return body, resp
@utils.add_req_id_to_object()
def queue(self, image_id):
if self.is_supported('v2.14'):
url = '/v2/cache/%s' % image_id
resp, body = self.http_client.put(url)
return body, resp
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