d25a3147c1
Add the API for calculating the duration for a series of events from a given meter for a given resource. Replace the old duration calculation in the storage engine API with get_event_interval(). Change-Id: I54952e760fc5e108fa25d71b601b7ef2a4937e9e Signed-off-by: Doug Hellmann <doug.hellmann@dreamhost.com>
102 lines
3.2 KiB
Python
102 lines
3.2 KiB
Python
# -*- encoding: utf-8 -*-
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#
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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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"""Simple logging storage backend.
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"""
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from ceilometer.openstack.common import log
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from ceilometer.storage import base
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LOG = log.getLogger(__name__)
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class LogStorage(base.StorageEngine):
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"""Log the data
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"""
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def register_opts(self, conf):
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"""Register any configuration options used by this engine.
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"""
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def get_connection(self, conf):
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"""Return a Connection instance based on the configuration settings.
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"""
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return Connection(conf)
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class Connection(base.Connection):
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"""Base class for storage system connections.
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"""
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def __init__(self, conf):
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return
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def record_metering_data(self, data):
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"""Write the data to the backend storage system.
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:param data: a dictionary such as returned by
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ceilometer.meter.meter_message_from_counter
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"""
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LOG.info('metering data %s for %s: %s',
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data['counter_name'],
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data['resource_id'],
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data['counter_volume'])
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def get_users(self, source=None):
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"""Return an iterable of user id strings.
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:param source: Optional source filter.
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"""
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def get_projects(self, source=None):
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"""Return an iterable of project id strings.
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:param source: Optional source filter.
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"""
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def get_resources(self, user=None, project=None, source=None,
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start_timestamp=None, end_timestamp=None):
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"""Return an iterable of tuples containing resource ids and
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the most recent version of the metadata for the resource.
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:param user: Optional ID for user that owns the resource.
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:param project: Optional ID for project that owns the resource.
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:param source: Optional source filter.
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:param start_timestamp: Optional modified timestamp start range.
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:param end_timestamp: Optional modified timestamp end range.
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"""
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def get_raw_events(self, event_filter):
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"""Return an iterable of raw event data as created by
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:func:`ceilometer.meter.meter_message_from_counter`.
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"""
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def get_volume_sum(self, event_filter):
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"""Return the sum of the volume field for the events
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described by the query parameters.
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"""
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def get_volume_max(self, event_filter):
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"""Return the maximum of the volume field for the events
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described by the query parameters.
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"""
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def get_event_interval(self, event_filter):
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"""Return the min and max timestamp for events
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matching the event_filter.
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"""
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