#
# Copyright 2012 New Dream Network, LLC (DreamHost)
#
# 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.
"""Simple logging storage backend.
"""
from oslo_log import log
from ceilometer.i18n import _LI
from ceilometer.storage import base
LOG = log.getLogger(__name__)
[docs]class Connection(base.Connection):
"""Log the data."""
[docs] def upgrade(self):
pass
[docs] def record_metering_data(self, data):
"""Write the data to the backend storage system.
:param data: a dictionary such as returned by
ceilometer.meter.meter_message_from_counter.
"""
LOG.info(_LI('metering data %(counter_name)s for %(resource_id)s: '
'%(counter_volume)s')
% ({'counter_name': data['counter_name'],
'resource_id': data['resource_id'],
'counter_volume': data['counter_volume']}))
[docs] def clear_expired_metering_data(self, ttl):
"""Clear expired data from the backend storage system.
Clearing occurs according to the time-to-live.
:param ttl: Number of seconds to keep records for.
"""
LOG.info(_LI("Dropping metering data with TTL %d"), ttl)
[docs] def get_resources(self, user=None, project=None, source=None,
start_timestamp=None, start_timestamp_op=None,
end_timestamp=None, end_timestamp_op=None,
metaquery=None, resource=None, limit=None):
"""Return an iterable of dictionaries containing resource information.
{ 'resource_id': UUID of the resource,
'project_id': UUID of project owning the resource,
'user_id': UUID of user owning the resource,
'timestamp': UTC datetime of last update to the resource,
'metadata': most current metadata for the resource,
'meter': list of the meters reporting data for the resource,
}
:param user: Optional ID for user that owns the resource.
:param project: Optional ID for project that owns the resource.
:param source: Optional source filter.
:param start_timestamp: Optional modified timestamp start range.
:param start_timestamp_op: Optional start time operator, like gt, ge.
:param end_timestamp: Optional modified timestamp end range.
:param end_timestamp_op: Optional end time operator, like lt, le.
:param metaquery: Optional dict with metadata to match on.
:param resource: Optional resource filter.
:param limit: Maximum number of results to return.
"""
return []
[docs] def get_meters(self, user=None, project=None, resource=None, source=None,
limit=None, metaquery=None, unique=False):
"""Return an iterable of dictionaries containing meter information.
{ 'name': name of the meter,
'type': type of the meter (gauge, delta, cumulative),
'resource_id': UUID of the resource,
'project_id': UUID of project owning the resource,
'user_id': UUID of user owning the resource,
}
:param user: Optional ID for user that owns the resource.
:param project: Optional ID for project that owns the resource.
:param resource: Optional resource filter.
:param source: Optional source filter.
:param limit: Maximum number of results to return.
:param metaquery: Optional dict with metadata to match on.
:param unique: If set to true, return only unique meter information.
"""
return []
[docs] def get_samples(self, sample_filter, limit=None):
"""Return an iterable of samples.
Items are created by
ceilometer.publisher.utils.meter_message_from_counter.
"""
return []
[docs] def get_meter_statistics(self, sample_filter, period=None, groupby=None,
aggregate=None):
"""Return a dictionary containing meter statistics.
Meter statistics is described by the query parameters.
The filter must have a meter value set.
{ 'min':
'max':
'avg':
'sum':
'count':
'period':
'period_start':
'period_end':
'duration':
'duration_start':
'duration_end':
}
"""
return []