SEBA-405 Convert synchronizer framework to library
Change-Id: If8562f23dc15c7d18d7a8b040b33756708b3c5ec
diff --git a/lib/xos-synchronizer/xossynchronizer/synchronizer.py b/lib/xos-synchronizer/xossynchronizer/synchronizer.py
new file mode 100644
index 0000000..9a530d7
--- /dev/null
+++ b/lib/xos-synchronizer/xossynchronizer/synchronizer.py
@@ -0,0 +1,68 @@
+#!/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 os
+import sys
+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)
+ backend.run()
+
+
+if __name__ == "__main__":
+ main()