blob: 30d3ca0efd58a96dddd1d93f754cc4c6fa369921 [file] [log] [blame]
#!/usr/bin/env python
# Copyright 2017-present Open Networking Foundation
#
# 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 time
from xosconfig import Config
from multistructlog import create_logger
class Synchronizer(object):
def __init__(self):
self.log = create_logger(Config().get("logging"))
def create_model_accessor(self):
from modelaccessor import model_accessor
self.model_accessor = model_accessor
def wait_for_ready(self):
models_active = False
wait = False
while not models_active:
try:
_i = self.model_accessor.Instance.objects.first()
_n = self.model_accessor.NetworkTemplate.objects.first()
models_active = True
except Exception as e:
self.log.info("Exception", e=e)
self.log.info("Waiting for data model to come up before starting...")
time.sleep(10)
wait = True
if wait:
time.sleep(
60
) # Safety factor, seeing that we stumbled waiting for the data model to come up.
def run(self):
self.create_model_accessor()
self.wait_for_ready()
# Don't import backend until after the model accessor has been initialized. This is to support sync steps that
# use `from xossynchronizer.modelaccessor import ...` and require the model accessor to be initialized before
# their code can be imported.
from backend import Backend
log_closure = self.log.bind(synchronizer_name=Config().get("name"))
backend = Backend(log=log_closure, model_accessor=self.model_accessor)
backend.run()
if __name__ == "__main__":
main()