VOL-1395: Common shared libraries needed for Python based device adapters.
This is an initial check-in of code from the master branch. Additional work
is expected on a few items to work with the new go-core and will be covered
by separate JIRAs and commits.
Change-Id: I0856ec6b79b8d3e49082c609eb9c7eedd75b1708
diff --git a/python/adapters/extensions/omci/openomci_event_bus.py b/python/adapters/extensions/omci/openomci_event_bus.py
new file mode 100644
index 0000000..5c67865
--- /dev/null
+++ b/python/adapters/extensions/omci/openomci_event_bus.py
@@ -0,0 +1,54 @@
+#
+# Copyright 2018 the original author or authors.
+#
+# 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.
+#
+from google.protobuf.json_format import MessageToDict
+from google.protobuf.message import Message
+from simplejson import dumps
+from common.event_bus import EventBusClient
+from voltha.protos.omci_mib_db_pb2 import OpenOmciEvent
+from voltha.protos.omci_alarm_db_pb2 import AlarmOpenOmciEvent
+from common.utils.json_format import MessageToDict
+
+
+class OpenOmciEventBus(object):
+ """ Event bus for publishing OpenOMCI related events. """
+ __slots__ = (
+ '_event_bus_client', # The event bus client used to publish events.
+ '_topic' # the topic to publish to
+ )
+
+ def __init__(self):
+ self._event_bus_client = EventBusClient()
+ self._topic = 'openomci-events'
+
+ def message_to_dict(m):
+ return MessageToDict(m, True, True, False)
+
+ def advertise(self, event_type, data):
+ if isinstance(data, Message):
+ msg = dumps(MessageToDict(data, True, True))
+ elif isinstance(data, dict):
+ msg = dumps(data)
+ else:
+ msg = str(data)
+
+ event_func = AlarmOpenOmciEvent if 'AlarmSynchronizer' in msg \
+ else OpenOmciEvent
+ event = event_func(
+ type=event_type,
+ data=msg
+ )
+
+ self._event_bus_client.publish(self._topic, event)