79 lines
2.5 KiB
Python
79 lines
2.5 KiB
Python
# Copyright (c) 2013 Rackspace, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from oslo_log import log as logging
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import six
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from zaqar.common import decorators
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from zaqar.i18n import _
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from zaqar.storage import errors as storage_errors
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from zaqar.transport import acl
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from zaqar.transport import utils
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from zaqar.transport.wsgi import errors as wsgi_errors
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LOG = logging.getLogger(__name__)
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class Resource(object):
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__slots__ = '_queue_ctrl'
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def __init__(self, queue_controller):
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self._queue_ctrl = queue_controller
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@decorators.TransportLog("Queues stats item")
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@acl.enforce("queues:stats")
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def on_get(self, req, resp, project_id, queue_name):
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try:
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resp_dict = self._queue_ctrl.stats(queue_name,
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project=project_id)
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message_stats = resp_dict['messages']
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if message_stats['total'] != 0:
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base_path = req.path[:req.path.rindex('/')] + '/messages/'
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newest = message_stats['newest']
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newest['href'] = base_path + newest['id']
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del newest['id']
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oldest = message_stats['oldest']
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oldest['href'] = base_path + oldest['id']
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del oldest['id']
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resp.body = utils.to_json(resp_dict)
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# status defaults to 200
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except (storage_errors.QueueDoesNotExist,
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storage_errors.QueueIsEmpty) as ex:
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resp_dict = {
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'messages': {
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'claimed': 0,
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'free': 0,
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'total': 0
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}
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}
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resp.body = utils.to_json(resp_dict)
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except storage_errors.DoesNotExist as ex:
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LOG.debug(ex)
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raise wsgi_errors.HTTPNotFound(six.text_type(ex))
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except Exception as ex:
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LOG.exception(ex)
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description = _(u'Queue stats could not be read.')
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raise wsgi_errors.HTTPServiceUnavailable(description)
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