deb-murano/muranoapi/db/services/instances.py
Stan Lagun 4dd5c7b2f2 Billing statistics improved
Instance tracking information was improved to contain additional
information on instances such as type name, descriptive title
and number of VMs used by the application.

Added ability to retrieve non-aggregated statistics.
Also instance statistics API refactoring was made.

Implements blueprint app-catalog-billing

Change-Id: I8f3ea1a3947ceaf7deb2ee62b4ad41cbf230596e
2014-04-11 14:54:54 +04:00

105 lines
3.8 KiB
Python

# Copyright (c) 2013 Mirantis, Inc.
#
# 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.
import sqlalchemy
from sqlalchemy.sql import func
from muranoapi.db import models
from muranoapi.db import session as db_session
from muranoapi.openstack.common.db import exception
from muranoapi.openstack.common import timeutils
UNCLASSIFIED = 0
APPLICATION = 100
OS_INSTANCE = 200
class InstanceStatsServices(object):
@staticmethod
def track_instance(instance_id, environment_id, instance_type,
type_name, type_title=None, unit_count=None):
unit = db_session.get_session()
try:
with unit.begin():
env = unit.query(models.Environment).get(environment_id)
instance = models.Instance()
instance.instance_id = instance_id
instance.environment_id = environment_id
instance.tenant_id = env.tenant_id
instance.instance_type = instance_type
instance.created = timeutils.utcnow_ts()
instance.destroyed = None
instance.type_name = type_name
instance.type_title = type_title
instance.unit_count = unit_count
unit.add(instance)
except exception.DBDuplicateEntry:
unit.execute(
sqlalchemy.update(models.Instance).where(
models.Instance.instance_id == instance_id and
models.Instance.environment_id == environment_id).values(
unit_count=unit_count))
@staticmethod
def destroy_instance(instance_id, environment_id):
unit = db_session.get_session()
instance = unit.query(models.Instance).get(
(environment_id, instance_id))
if instance and not instance.destroyed:
instance.destroyed = timeutils.utcnow_ts()
instance.save(unit)
@staticmethod
def get_aggregated_stats(environment_id):
unit = db_session.get_session()
now = timeutils.utcnow_ts()
query = unit.query(models.Instance.instance_type, func.sum(
func.coalesce(models.Instance.destroyed, now) -
models.Instance.created), func.count()).filter(
models.Instance.environment_id == environment_id)
res = query.group_by(models.Instance.instance_type).all()
return [{
'type': int(record[0]),
'duration': int(record[1]),
'count': int(record[2])
} for record in res]
@staticmethod
def get_raw_environment_stats(environment_id, instance_id=None):
unit = db_session.get_session()
now = timeutils.utcnow_ts()
query = unit.query(models.Instance).filter(
models.Instance.environment_id == environment_id)
if instance_id:
query = query.filter(models.Instance.instance_id == instance_id)
res = query.all()
return [{
'type': record.instance_type,
'duration': (record.destroyed or now) - record.created,
'type_name': record.type_name,
'unit_count': record.unit_count,
'instance_id': record.instance_id,
'type_title': record.type_title,
'active': True if not record.destroyed else False
} for record in res]