155 lines
5.3 KiB
Python
155 lines
5.3 KiB
Python
#
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# Copyright 2012 New Dream Network, LLC (DreamHost)
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#
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# Author: Doug Hellmann <doug.hellmann@dreamhost.com>
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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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"""Storage backend management
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"""
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import six.moves.urllib.parse as urlparse
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from oslo.config import cfg
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import six
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from stevedore import driver
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from ceilometer.openstack.common.gettextutils import _
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from ceilometer.openstack.common import log
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from ceilometer import utils
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LOG = log.getLogger(__name__)
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STORAGE_ENGINE_NAMESPACE = 'ceilometer.storage'
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OLD_STORAGE_OPTS = [
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cfg.StrOpt('database_connection',
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secret=True,
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default=None,
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help='DEPRECATED - Database connection string.',
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),
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]
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cfg.CONF.register_opts(OLD_STORAGE_OPTS)
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STORAGE_OPTS = [
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cfg.IntOpt('time_to_live',
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default=-1,
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help="Number of seconds that samples are kept "
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"in the database for (<= 0 means forever)."),
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]
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cfg.CONF.register_opts(STORAGE_OPTS, group='database')
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cfg.CONF.import_opt('connection',
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'ceilometer.openstack.common.db.options',
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group='database')
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class StorageBadVersion(Exception):
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"""Error raised when the storage backend version is not good enough."""
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class StorageBadAggregate(Exception):
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"""Error raised when an aggregate is unacceptable to storage backend."""
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code = 400
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def get_connection_from_config(conf):
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if conf.database_connection:
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conf.set_override('connection', conf.database_connection,
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group='database')
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return get_connection(conf.database.connection)
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def get_connection(url):
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"""Return an open connection to the database."""
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engine_name = urlparse.urlparse(url).scheme
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LOG.debug(_('looking for %(name)r driver in %(namespace)r') % (
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{'name': engine_name,
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'namespace': STORAGE_ENGINE_NAMESPACE}))
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mgr = driver.DriverManager(STORAGE_ENGINE_NAMESPACE, engine_name)
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return mgr.driver(url)
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class SampleFilter(object):
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"""Holds the properties for building a query from a meter/sample filter.
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:param user: The sample owner.
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:param project: The sample project.
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:param start: Earliest time point in the request.
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:param start_timestamp_op: Earliest timestamp operation in the request.
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:param end: Latest time point in the request.
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:param end_timestamp_op: Latest timestamp operation in the request.
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:param resource: Optional filter for resource id.
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:param meter: Optional filter for meter type using the meter name.
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:param source: Optional source filter.
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:param message_id: Optional sample_id filter.
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:param metaquery: Optional filter on the metadata
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"""
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def __init__(self, user=None, project=None,
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start=None, start_timestamp_op=None,
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end=None, end_timestamp_op=None,
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resource=None, meter=None,
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source=None, message_id=None,
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metaquery=None):
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self.user = user
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self.project = project
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self.start = utils.sanitize_timestamp(start)
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self.start_timestamp_op = start_timestamp_op
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self.end = utils.sanitize_timestamp(end)
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self.end_timestamp_op = end_timestamp_op
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self.resource = resource
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self.meter = meter
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self.source = source
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self.metaquery = metaquery or {}
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self.message_id = message_id
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class EventFilter(object):
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"""Properties for building an Event query.
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:param start_time: UTC start datetime (mandatory)
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:param end_time: UTC end datetime (mandatory)
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:param event_type: the name of the event. None for all.
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:param message_id: the message_id of the event. None for all.
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:param traits_filter: the trait filter dicts, all of which are optional.
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This parameter is a list of dictionaries that specify
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trait values:
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{'key': <key>,
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'string': <value>,
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'integer': <value>,
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'datetime': <value>,
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'float': <value>,
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'op': <eq, lt, le, ne, gt or ge> }
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"""
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def __init__(self, start_time=None, end_time=None, event_type=None,
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message_id=None, traits_filter=None):
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self.start_time = utils.sanitize_timestamp(start_time)
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self.end_time = utils.sanitize_timestamp(end_time)
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self.message_id = message_id
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self.event_type = event_type
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self.traits_filter = traits_filter or []
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def __repr__(self):
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return ("<EventFilter(start_time: %s,"
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" end_time: %s,"
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" event_type: %s,"
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" traits: %s)>" %
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(self.start_time,
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self.end_time,
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self.event_type,
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six.text_type(self.traits_filter)))
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