def cache(self):
LOG.debug(_(u'Loading Proxy Cache Driver'))
try:
mgr = oslo_cache.get_cache(self.conf)
return mgr
except RuntimeError as exc:
LOG.exception(exc)
raise exceptions.InvalidDriver(exc)
def storage(self):
LOG.debug(_(u'Loading Storage Driver'))
try:
mgr = driver.DriverManager('marconi.storage',
CFG.storage,
invoke_on_load=True)
return mgr.driver
except RuntimeError as exc:
LOG.exception(exc)
raise exceptions.InvalidDriver(exc)
def transport(self):
LOG.debug(_(u'Loading Transport Driver'))
try:
mgr = driver.DriverManager('marconi.transport',
CFG.transport,
invoke_on_load=True,
invoke_args=[self.storage])
return mgr.driver
except RuntimeError as exc:
LOG.exception(exc)
raise exceptions.InvalidDriver(exc)
def transport(self):
LOG.debug(_(u'Loading Proxy Transport Driver'))
try:
mgr = driver.DriverManager(self._transport_type,
CFG['proxy:drivers'].transport,
invoke_on_load=True,
invoke_args=[self.storage, self.cache])
return mgr.driver
except RuntimeError as exc:
LOG.exception(exc)
raise exceptions.InvalidDriver(exc)
def transport(self):
transport_name = self.driver_conf.transport
LOG.debug(_(u'Loading transport driver: %s'), transport_name)
try:
mgr = driver.DriverManager(
self._transport_type,
transport_name,
invoke_on_load=True,
invoke_args=[self.conf, self.storage, self.cache])
return mgr.driver
except RuntimeError as exc:
LOG.exception(exc)
raise exceptions.InvalidDriver(exc)
def load_storage_driver(conf):
"""Loads a storage driver and returns it.
The driver's initializer will be passed conf as its only arg.
:param conf: Configuration instance to use for loading the
driver. Must include a 'queues:drivers' group.
"""
try:
mgr = driver.DriverManager('marconi.queues.data.storage',
conf['queues:drivers'].storage,
invoke_on_load=True,
invoke_args=[conf])
return mgr.driver
except RuntimeError as exc:
LOG.exception(exc)
raise exceptions.InvalidDriver(exc)