Source code for glance.api.middleware.cache_manage

# Copyright 2011 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
#    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.

Image Cache Management API

from oslo_log import log as logging
import routes

from glance.api.v2 import cached_images
from glance.common import wsgi
from glance.i18n import _LI

LOG = logging.getLogger(__name__)

[docs] class CacheManageFilter(wsgi.Middleware): def __init__(self, app): mapper = routes.Mapper() resource = cached_images.create_resource() mapper.connect("/v2/cached_images", controller=resource, action="get_cached_images", conditions=dict(method=["GET"])) mapper.connect("/v2/cached_images/{image_id}", controller=resource, action="delete_cached_image", conditions=dict(method=["DELETE"])) mapper.connect("/v2/cached_images", controller=resource, action="delete_cached_images", conditions=dict(method=["DELETE"])) mapper.connect("/v2/queued_images/{image_id}", controller=resource, action="queue_image", conditions=dict(method=["PUT"])) mapper.connect("/v2/queued_images", controller=resource, action="get_queued_images", conditions=dict(method=["GET"])) mapper.connect("/v2/queued_images/{image_id}", controller=resource, action="delete_queued_image", conditions=dict(method=["DELETE"])) mapper.connect("/v2/queued_images", controller=resource, action="delete_queued_images", conditions=dict(method=["DELETE"])) self._mapper = mapper self._resource = resource"Initialized image cache management middleware")) super(CacheManageFilter, self).__init__(app)
[docs] def process_request(self, request): # Map request to our resource object if we can handle it match = self._mapper.match(request.path_info, request.environ) if match: request.environ['wsgiorg.routing_args'] = (None, match) return self._resource(request) # Pass off downstream if we don't match the request path else: return None