101 lines
3.1 KiB
Python
101 lines
3.1 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 panko
|
|
|
|
|
|
class Connection(object):
|
|
"""Base class for event storage system connections."""
|
|
|
|
# A dictionary representing the capabilities of this driver.
|
|
CAPABILITIES = {
|
|
'events': {'query': {'simple': False}},
|
|
}
|
|
|
|
STORAGE_CAPABILITIES = {
|
|
'storage': {'production_ready': False},
|
|
}
|
|
|
|
@staticmethod
|
|
def __init__(url, conf):
|
|
pass
|
|
|
|
@staticmethod
|
|
def upgrade():
|
|
"""Migrate the database to `version` or the most recent version."""
|
|
|
|
@staticmethod
|
|
def clear():
|
|
"""Clear database."""
|
|
|
|
@staticmethod
|
|
def record_events(events):
|
|
"""Write the events to the backend storage system.
|
|
|
|
:param events: a list of model.Event objects.
|
|
"""
|
|
raise panko.NotImplementedError('Events not implemented.')
|
|
|
|
@staticmethod
|
|
def get_events(event_filter, pagination=None):
|
|
"""Return an iterable of model.Event objects."""
|
|
raise panko.NotImplementedError('Events not implemented.')
|
|
|
|
@staticmethod
|
|
def get_event_types():
|
|
"""Return all event types as an iterable of strings."""
|
|
raise panko.NotImplementedError('Events not implemented.')
|
|
|
|
@staticmethod
|
|
def get_trait_types(event_type):
|
|
"""Return a dictionary containing the name and data type of the trait.
|
|
|
|
Only trait types for the provided event_type are
|
|
returned.
|
|
:param event_type: the type of the Event
|
|
"""
|
|
raise panko.NotImplementedError('Events not implemented.')
|
|
|
|
@staticmethod
|
|
def get_traits(event_type, trait_type=None):
|
|
"""Return all trait instances associated with an event_type.
|
|
|
|
If trait_type is specified, only return instances of that trait type.
|
|
:param event_type: the type of the Event to filter by
|
|
:param trait_type: the name of the Trait to filter by
|
|
"""
|
|
|
|
raise panko.NotImplementedError('Events not implemented.')
|
|
|
|
@classmethod
|
|
def get_capabilities(cls):
|
|
"""Return an dictionary with the capabilities of each driver."""
|
|
return cls.CAPABILITIES
|
|
|
|
@classmethod
|
|
def get_storage_capabilities(cls):
|
|
"""Return a dictionary representing the performance capabilities.
|
|
|
|
This is needed to evaluate the performance of each driver.
|
|
"""
|
|
return cls.STORAGE_CAPABILITIES
|
|
|
|
@staticmethod
|
|
def clear_expired_event_data(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.
|
|
"""
|
|
raise panko.NotImplementedError('Clearing events not implemented')
|