84 lines
2.8 KiB
Python
84 lines
2.8 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.config import cfg
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from stevedore import driver
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from marconi.common.cache import cache as oslo_cache
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from marconi.common import config
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from marconi.common import decorators
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from marconi.common import exceptions
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from marconi.openstack.common import log
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from marconi.proxy import transport # NOQA
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PROJECT_CFG = config.project('marconi', 'marconi-proxy')
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CFG = config.namespace('proxy:drivers').from_options(
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transport='wsgi',
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storage='memory')
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LOG = log.getLogger(__name__)
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class Bootstrap(object):
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"""Defines the Marconi proxy bootstrapper.
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The bootstrap loads up drivers per a given configuration, and
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manages their lifetimes.
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"""
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def __init__(self, config_file=None, cli_args=None):
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PROJECT_CFG.load(filename=config_file, args=cli_args)
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log.setup('marconi_proxy')
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@decorators.lazy_property(write=False)
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def storage(self):
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LOG.debug(_(u'Loading Proxy Storage Driver'))
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try:
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mgr = driver.DriverManager('marconi.proxy.storage',
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CFG.storage,
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invoke_on_load=True)
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return mgr.driver
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except RuntimeError as exc:
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LOG.exception(exc)
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raise exceptions.InvalidDriver(exc)
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@decorators.lazy_property(write=False)
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def cache(self):
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LOG.debug(_(u'Loading Proxy Cache Driver'))
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try:
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mgr = oslo_cache.get_cache(cfg.CONF)
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return mgr
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except RuntimeError as exc:
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LOG.exception(exc)
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raise exceptions.InvalidDriver(exc)
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@decorators.lazy_property(write=False)
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def transport(self):
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LOG.debug(_(u'Loading Proxy Transport Driver'))
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try:
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mgr = driver.DriverManager('marconi.proxy.transport',
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CFG.transport,
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invoke_on_load=True,
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invoke_args=[self.storage,
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self.cache])
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return mgr.driver
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except RuntimeError as exc:
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LOG.exception(exc)
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raise exceptions.InvalidDriver(exc)
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def run(self):
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self.transport.listen()
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