95 lines
2.9 KiB
Python
95 lines
2.9 KiB
Python
#
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# Copyright 2013 IBM
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import abc
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from oslo_config import cfg
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from oslo_log import log
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import six
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from stevedore import named
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from ceilometer.i18n import _LW
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LOG = log.getLogger(__name__)
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OPTS = [
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cfg.MultiStrOpt('meter_dispatchers',
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deprecated_name='dispatcher',
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default=['database'],
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help='Dispatchers to process metering data.'),
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cfg.MultiStrOpt('event_dispatchers',
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default=['database'],
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deprecated_name='dispatcher',
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help='Dispatchers to process event data.'),
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]
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cfg.CONF.register_opts(OPTS)
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STORAGE_OPTS = [
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cfg.IntOpt('max_retries',
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default=10,
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deprecated_group='database',
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help='Maximum number of connection retries during startup. '
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'Set to -1 to specify an infinite retry count.'),
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cfg.IntOpt('retry_interval',
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default=10,
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deprecated_group='database',
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help='Interval (in seconds) between retries of connection.'),
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]
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cfg.CONF.register_opts(STORAGE_OPTS, group='storage')
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def _load_dispatcher_manager(dispatcher_type):
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namespace = 'ceilometer.dispatcher.%s' % dispatcher_type
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conf_name = '%s_dispatchers' % dispatcher_type
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LOG.debug('loading dispatchers from %s', namespace)
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# set propagate_map_exceptions to True to enable stevedore
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# to propagate exceptions.
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dispatcher_manager = named.NamedExtensionManager(
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namespace=namespace,
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names=getattr(cfg.CONF, conf_name),
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invoke_on_load=True,
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invoke_args=[cfg.CONF],
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propagate_map_exceptions=True)
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if not list(dispatcher_manager):
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LOG.warning(_LW('Failed to load any dispatchers for %s'),
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namespace)
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return dispatcher_manager
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def load_dispatcher_manager():
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return (_load_dispatcher_manager('meter'),
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_load_dispatcher_manager('event'))
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class Base(object):
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def __init__(self, conf):
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self.conf = conf
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@six.add_metaclass(abc.ABCMeta)
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class MeterDispatcherBase(Base):
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@abc.abstractmethod
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def record_metering_data(self, data):
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"""Recording metering data interface."""
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@six.add_metaclass(abc.ABCMeta)
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class EventDispatcherBase(Base):
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@abc.abstractmethod
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def record_events(self, events):
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"""Recording events interface."""
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