bilean/bilean/api/openstack/v1/events.py

88 lines
2.9 KiB
Python

#
# 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 itertools
from bilean.api.openstack.v1 import util
from bilean.common import params
from bilean.common import serializers
from bilean.common import wsgi
from bilean.rpc import client as rpc_client
def format_event(req, res, keys=None):
keys = keys or []
include_key = lambda k: k in keys if keys else True
def transform(key, value):
if not include_key(key):
return
else:
yield (key, value)
return dict(itertools.chain.from_iterable(
transform(k, v) for k, v in res.items()))
class EventController(object):
"""WSGI controller for Events in Bilean v1 API
Implements the API actions
"""
# Define request scope (must match what is in policy.json)
REQUEST_SCOPE = 'events'
def __init__(self, options):
self.options = options
self.rpc_client = rpc_client.EngineClient()
@util.policy_enforce
def index(self, req, tenant_id):
"""Lists summary information for all users"""
filter_fields = {
'user_id': 'string',
'resource_type': 'string',
'action': 'string',
'start': 'timestamp',
'end': 'timestamp',
}
filter_params = util.get_allowed_params(req.params, filter_fields)
if 'aggregate' in req.params:
aggregate = req.params.get('aggregate')
if aggregate in ['sum', 'avg']:
filter_params['aggregate'] = aggregate
events = self.rpc_client.list_events(
req.context, filters=filter_params)
event_statistics = self._init_event_statistics()
for e in events:
if e[0] in event_statistics:
event_statistics[e[0]] = e[1]
return dict(events=event_statistics)
events = self.rpc_client.list_events(
req.context, filters=filter_params)
return dict(events=events)
def _init_event_statistics(self):
event_statistics = {}
for resource in params.RESOURCE_TYPES:
event_statistics[resource] = 0
return event_statistics
def create_resource(options):
"""User resource factory method."""
deserializer = wsgi.JSONRequestDeserializer()
serializer = serializers.JSONResponseSerializer()
return wsgi.Resource(EventController(options), deserializer, serializer)