42d910d820
check to ensure counter_type is valid when posting samples via API Change-Id: I097c54f6b410c67b117b07eaf146828766f4852a Fixes: bug #1221007
100 lines
3.2 KiB
Python
100 lines
3.2 KiB
Python
# -*- encoding: utf-8 -*-
|
|
#
|
|
# Copyright © 2012 New Dream Network, LLC (DreamHost)
|
|
# Copyright © 2013 eNovance
|
|
#
|
|
# Authors: Doug Hellmann <doug.hellmann@dreamhost.com>
|
|
# Julien Danjou <julien@danjou.info>
|
|
#
|
|
# 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.
|
|
"""Sample class for holding data about a metering event.
|
|
|
|
A Sample doesn't really do anything, but we need a way to
|
|
ensure that all of the appropriate fields have been filled
|
|
in by the plugins that create them.
|
|
"""
|
|
|
|
import copy
|
|
import uuid
|
|
|
|
from oslo.config import cfg
|
|
|
|
|
|
OPTS = [
|
|
cfg.StrOpt('sample_source',
|
|
default='openstack',
|
|
deprecated_name='counter_source',
|
|
help='Source for samples emited on this instance'),
|
|
]
|
|
|
|
cfg.CONF.register_opts(OPTS)
|
|
|
|
|
|
# Fields explanation:
|
|
#
|
|
# Source: the source of this sample
|
|
# Name: the name of the meter, must be unique
|
|
# Type: the type of the meter, must be either:
|
|
# - cumulative: the value is incremented and never reset to 0
|
|
# - delta: the value is reset to 0 each time it is sent
|
|
# - gauge: the value is an absolute value and is not a counter
|
|
# Unit: the unit of the meter
|
|
# Volume: the sample value
|
|
# User ID: the user ID
|
|
# Project ID: the project ID
|
|
# Resource ID: the resource ID
|
|
# Timestamp: when the sample has been read
|
|
# Resource metadata: various metadata
|
|
class Sample(object):
|
|
|
|
def __init__(self, name, type, unit, volume, user_id, project_id,
|
|
resource_id, timestamp, resource_metadata, source=None):
|
|
self.name = name
|
|
self.type = type
|
|
self.unit = unit
|
|
self.volume = volume
|
|
self.user_id = user_id
|
|
self.project_id = project_id
|
|
self.resource_id = resource_id
|
|
self.timestamp = timestamp
|
|
self.resource_metadata = resource_metadata
|
|
self.source = source or cfg.CONF.sample_source
|
|
self.id = str(uuid.uuid1())
|
|
|
|
def as_dict(self):
|
|
return copy.copy(self.__dict__)
|
|
|
|
@classmethod
|
|
def from_notification(cls, name, type, volume, unit,
|
|
user_id, project_id, resource_id,
|
|
message, source=None):
|
|
metadata = copy.copy(message['payload'])
|
|
metadata['event_type'] = message['event_type']
|
|
metadata['host'] = message['publisher_id']
|
|
return cls(name=name,
|
|
type=type,
|
|
volume=volume,
|
|
unit=unit,
|
|
user_id=user_id,
|
|
project_id=project_id,
|
|
resource_id=resource_id,
|
|
timestamp=message['timestamp'],
|
|
resource_metadata=metadata,
|
|
source=source)
|
|
|
|
TYPE_GAUGE = 'gauge'
|
|
TYPE_DELTA = 'delta'
|
|
TYPE_CUMULATIVE = 'cumulative'
|
|
|
|
TYPES = (TYPE_GAUGE, TYPE_DELTA, TYPE_CUMULATIVE)
|