zaqar/marconi/transport/wsgi/stats.py
kgriffs c548e10a48 Rename transport helpers to utils
This is a simple patch that renames two "helpers" modules
to make them consistent with the storage driver naming scheme.

Change-Id: Idffe4523e0ab095286cfea6890fbffe5c36a40d9
2013-08-09 17:31:55 -04:00

63 lines
2.0 KiB
Python

# Copyright (c) 2013 Rackspace, Inc.
#
# 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 falcon
import marconi.openstack.common.log as logging
from marconi.storage import exceptions as storage_exceptions
from marconi.transport import utils
from marconi.transport.wsgi import exceptions as wsgi_exceptions
LOG = logging.getLogger(__name__)
class Resource(object):
__slots__ = ('queue_ctrl')
def __init__(self, queue_controller):
self.queue_ctrl = queue_controller
def on_get(self, req, resp, project_id, queue_name):
try:
resp_dict = self.queue_ctrl.stats(queue_name,
project=project_id)
message_stats = resp_dict['messages']
if message_stats['total'] != 0:
base_path = req.path[:req.path.rindex('/')] + '/messages/'
newest = message_stats['newest']
newest['href'] = base_path + newest['id']
del newest['id']
oldest = message_stats['oldest']
oldest['href'] = base_path + oldest['id']
del oldest['id']
resp.content_location = req.path
resp.body = utils.to_json(resp_dict)
resp.status = falcon.HTTP_200
except storage_exceptions.DoesNotExist:
raise falcon.HTTPNotFound()
except Exception as ex:
LOG.exception(ex)
description = _('Queue stats could not be read.')
raise wsgi_exceptions.HTTPServiceUnavailable(description)