1d122b1671
Currently, the TTL of subscriptons doesn't work. That said, after the ttl seconds, the subscription can't be deleted. This patch also adds a default TTL for subscription. This patch fixes the bug and a functional test will be added in Zaqar client. APIImpact DocImpact Partial-Bug: #1529168 Change-Id: I18e6dd3833f11692775b1285365afbced5725249
103 lines
3.2 KiB
Python
103 lines
3.2 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 abc
|
|
|
|
from oslo_config import cfg
|
|
import six
|
|
|
|
|
|
_GENERAL_TRANSPORT_OPTIONS = (
|
|
cfg.StrOpt('auth_strategy', default='',
|
|
help=('Backend to use for authentication. '
|
|
'For no auth, keep it empty. '
|
|
'Existing strategies: keystone. '
|
|
'See also the keystone_authtoken section below')),
|
|
)
|
|
|
|
_RESOURCE_DEFAULTS = (
|
|
cfg.IntOpt('default_message_ttl', default=3600,
|
|
help=('Defines how long a message will be accessible.')),
|
|
cfg.IntOpt('default_claim_ttl', default=300,
|
|
help=('Defines how long a message will be in claimed state.')),
|
|
cfg.IntOpt('default_claim_grace', default=60,
|
|
help=('Defines the message grace period in seconds.')),
|
|
cfg.IntOpt('default_subscription_ttl', default=3600,
|
|
help=('Defines how long a subscription will be available.')),
|
|
)
|
|
|
|
_TRANSPORT_GROUP = 'transport'
|
|
|
|
|
|
def _config_options():
|
|
return [
|
|
(None, _GENERAL_TRANSPORT_OPTIONS),
|
|
(_TRANSPORT_GROUP, _RESOURCE_DEFAULTS),
|
|
]
|
|
|
|
|
|
class ResourceDefaults(object):
|
|
"""Registers and exposes defaults for resource fields."""
|
|
|
|
def __init__(self, conf):
|
|
self._conf = conf
|
|
self._conf.register_opts(_RESOURCE_DEFAULTS, group=_TRANSPORT_GROUP)
|
|
self._defaults = self._conf[_TRANSPORT_GROUP]
|
|
|
|
@property
|
|
def message_ttl(self):
|
|
return self._defaults.default_message_ttl
|
|
|
|
@property
|
|
def claim_ttl(self):
|
|
return self._defaults.default_claim_ttl
|
|
|
|
@property
|
|
def claim_grace(self):
|
|
return self._defaults.default_claim_grace
|
|
|
|
@property
|
|
def subscription_ttl(self):
|
|
return self._defaults.default_subscription_ttl
|
|
|
|
|
|
@six.add_metaclass(abc.ABCMeta)
|
|
class DriverBase(object):
|
|
"""Base class for Transport Drivers to document the expected interface.
|
|
|
|
:param conf: configuration instance
|
|
:type conf: oslo_config.cfg.CONF
|
|
:param storage: The storage driver
|
|
:type storage: zaqar.storage.base.DataDriverBase
|
|
:param cache: caching object
|
|
:type cache: dogpile.cache.region.CacheRegion
|
|
:param control: Storage driver to handle the control plane
|
|
:type control: zaqar.storage.base.ControlDriverBase
|
|
"""
|
|
|
|
def __init__(self, conf, storage, cache, control):
|
|
self._conf = conf
|
|
self._storage = storage
|
|
self._cache = cache
|
|
self._control = control
|
|
|
|
self._conf.register_opts(_GENERAL_TRANSPORT_OPTIONS)
|
|
self._defaults = ResourceDefaults(self._conf)
|
|
|
|
@abc.abstractmethod
|
|
def listen(self):
|
|
"""Start listening for client requests (self-hosting mode)."""
|
|
raise NotImplementedError
|