Source code for ceilometer.dispatcher.database

#
# Copyright 2013 IBM Corp
#
# Author: Tong Li <litong01@us.ibm.com>
#
# 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.
from oslo.utils import timeutils

from ceilometer import dispatcher
from ceilometer.openstack.common.gettextutils import _
from ceilometer.openstack.common import log
from ceilometer.publisher import utils as publisher_utils
from ceilometer import storage

LOG = log.getLogger(__name__)


[docs]class DatabaseDispatcher(dispatcher.Base): """Dispatcher class for recording metering data into database. The dispatcher class which records each meter into a database configured in ceilometer configuration file. To enable this dispatcher, the following section needs to be present in ceilometer.conf file dispatchers = database """ def __init__(self, conf): super(DatabaseDispatcher, self).__init__(conf) self.storage_conn = storage.get_connection_from_config(conf)
[docs] def record_metering_data(self, data): # We may have receive only one counter on the wire if not isinstance(data, list): data = [data] for meter in data: LOG.debug(_( 'metering data %(counter_name)s ' 'for %(resource_id)s @ %(timestamp)s: %(counter_volume)s') % ({'counter_name': meter['counter_name'], 'resource_id': meter['resource_id'], 'timestamp': meter.get('timestamp', 'NO TIMESTAMP'), 'counter_volume': meter['counter_volume']})) if publisher_utils.verify_signature( meter, self.conf.publisher.metering_secret): try: # Convert the timestamp to a datetime instance. # Storage engines are responsible for converting # that value to something they can store. if meter.get('timestamp'): ts = timeutils.parse_isotime(meter['timestamp']) meter['timestamp'] = timeutils.normalize_time(ts) self.storage_conn.record_metering_data(meter) except Exception as err: LOG.exception(_('Failed to record metering data: %s'), err) else: LOG.warning(_( 'message signature invalid, discarding message: %r'), meter)
[docs] def record_events(self, events): if not isinstance(events, list): events = [events] return self.storage_conn.record_events(events)