139 lines
4.8 KiB
Python
139 lines
4.8 KiB
Python
#
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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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import six
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from bilean.common.i18n import _
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from bilean.db import api as db_api
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from bilean.engine import resources as bilean_resources
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from oslo_log import log as logging
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LOG = logging.getLogger(__name__)
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class Event(object):
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"""Class to deal with consumption record."""
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def __init__(self, timestamp, **kwargs):
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self.timestamp = timestamp
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self.user_id = kwargs.get('user_id', None)
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self.action = kwargs.get('action', None)
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self.resource_type = kwargs.get('resource_type', None)
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self.action = kwargs.get('action', None)
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self.value = kwargs.get('value', 0)
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@classmethod
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def from_db_record(cls, record):
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'''Construct an event object from a database record.'''
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kwargs = {
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'id': record.id,
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'user_id': record.user_id,
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'action': record.action,
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'resource_type': record.resource_type,
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'action': record.action,
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'value': record.value,
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}
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return cls(record.timestamp, **kwargs)
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@classmethod
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def load(cls, context, db_event=None, event_id=None, project_safe=True):
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'''Retrieve an event record from database.'''
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if db_event is not None:
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return cls.from_db_record(db_event)
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record = db_api.event_get(context, event_id, project_safe=project_safe)
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if record is None:
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raise exception.EventNotFound(event=event_id)
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return cls.from_db_record(record)
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@classmethod
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def load_all(cls, context, filters=None, limit=None, marker=None,
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sort_keys=None, sort_dir=None, project_safe=True,
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show_deleted=False):
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'''Retrieve all events from database.'''
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records = db_api.event_get_all(context, limit=limit, marker=marker,
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sort_keys=sort_keys, sort_dir=sort_dir,
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filters=filters,
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project_safe=project_safe,
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show_deleted=show_deleted)
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for record in records:
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yield cls.from_db_record(record)
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def store(self, context):
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'''Store the event into database and return its ID.'''
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values = {
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'id': self.id,
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'user_id': self.user_id,
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'action': self.action,
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'resource_type': self.resource_type,
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'action': self.action,
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'value': self.value,
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}
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event = db_api.event_create(context, values)
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self.id = event.id
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return self.id
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@classmethod
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def from_dict(cls, **kwargs):
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timestamp = kwargs.pop('timestamp')
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return cls(timestamp, kwargs)
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def to_dict(self):
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evt = {
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'id': self.id,
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'user_id': self.user_id,
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'action': self.action,
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'resource_type': self.resource_type,
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'action': self.action,
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'value': self.value,
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'timestamp': utils.format_time(self.timestamp),
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}
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return evt
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def record(context, user_id, action=None, seconds=0, value=0):
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"""Generate events for specify user
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:param context: oslo.messaging.context
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:param user_id: ID of user to mark event
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:param action: action of event, include 'charge' and 'recharge'
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:param seconds: use time length, needed when action is 'charge'
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:param value: value of recharge, needed when action is 'recharge'
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"""
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try:
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if action == 'charge':
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resources = bilean_resources.resource_get_all(
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context, user_id=user_id)
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for resource in resources:
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usage = resource['rate'] / 3600.0 * time_length
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event_create(context,
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user_id=user_id,
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resource_id=resource['id'],
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resource_type=resource['resource_type'],
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action=action,
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value=usage)
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else:
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event_create(context,
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user_id=user_id,
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action=action,
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value=recharge_value)
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except Exception as exc:
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LOG.error(_("Error generate events: %s") % six.text_type(exc))
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