congress/congress/api/base.py

44 lines
1.5 KiB
Python

# Copyright (c) 2016 NEC Corporation. All rights reserved.
#
# 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.
#
""" Base class for all API models."""
from __future__ import absolute_import
from oslo_config import cfg
ENGINE_SERVICE_ID = '__engine'
LIBRARY_SERVICE_ID = '__library'
DS_MANAGER_SERVICE_ID = '_ds_manager'
JSON_DS_SERVICE_PREFIX = '__json__'
class APIModel(object):
"""Base Class for handling API requests."""
def __init__(self, name, bus=None):
self.name = name
self.dse_long_timeout = cfg.CONF.dse.long_timeout
self.action_retry_timeout = cfg.CONF.dse.execute_action_retry_timeout
self.bus = bus
# Note(thread-safety): blocking function
def invoke_rpc(self, caller, name, kwargs, timeout=None):
local = (caller is ENGINE_SERVICE_ID and
self.bus.node.service_object(
ENGINE_SERVICE_ID) is not None)
return self.bus.rpc(
caller, name, kwargs, timeout=timeout, local=local)