Tibit OLT/ONU adapter skeletons

Change-Id: I2ac9e7d7600ebde1eda764410ec59f53273fccc1
diff --git a/voltha/adapters/tibit_olt/tibit_olt.py b/voltha/adapters/tibit_olt/tibit_olt.py
index e69de29..152f5ab 100644
--- a/voltha/adapters/tibit_olt/tibit_olt.py
+++ b/voltha/adapters/tibit_olt/tibit_olt.py
@@ -0,0 +1,98 @@
+#
+# Copyright 2016 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.
+#
+
+"""
+Tibit OLT device adapter
+"""
+
+import structlog
+from zope.interface import implementer
+
+from voltha.adapters.interface import IAdapterInterface
+from voltha.protos.adapter_pb2 import Adapter, AdapterConfig
+from voltha.protos.device_pb2 import DeviceType, DeviceTypes
+from voltha.protos.health_pb2 import HealthStatus
+from voltha.protos.common_pb2 import LogLevel
+
+log = structlog.get_logger()
+
+
+@implementer(IAdapterInterface)
+class TibitOltAdapter(object):
+
+    name = 'tibit_olt'
+
+    supported_device_types = [
+        DeviceType(
+            id='tibit_olt',
+            adapter=name,
+            accepts_bulk_flow_update=True
+        )
+    ]
+
+    def __init__(self, adapter_agent, config):
+        self.adapter_agent = adapter_agent
+        self.config = config
+        self.descriptor = Adapter(
+            id=self.name,
+            vendor='Tibit Communications Inc.',
+            version='0.1',
+            config=AdapterConfig(log_level=LogLevel.INFO)
+        )
+
+    def start(self):
+        log.debug('starting')
+        log.info('started')
+
+    def stop(self):
+        log.debug('stopping')
+        log.info('stopped')
+
+    def adapter_descriptor(self):
+        return self.descriptor
+
+    def device_types(self):
+        return DeviceTypes(items=self.supported_device_types)
+
+    def health(self):
+        return HealthStatus(state=HealthStatus.HealthState.HEALTHY)
+
+    def change_master_state(self, master):
+        raise NotImplementedError()
+
+    def adopt_device(self, device):
+        log.info('adopt-device', device=device)
+        return device
+
+    def abandon_device(self, device):
+        raise NotImplementedError(0
+                                  )
+    def deactivate_device(self, device):
+        raise NotImplementedError()
+
+    def update_flows_bulk(self, device, flows, groups):
+        log.debug('bulk-flow-update', device_id=device.id,
+                  flows=flows, groups=groups)
+
+    def update_flows_incrementally(self, device, flow_changes, group_changes):
+        raise NotImplementedError()
+
+    def send_proxied_message(self, proxy_address, msg):
+        log.debug('send-proxied-message',
+                  proxy_address=proxy_address, msg=msg)
+
+    def receive_proxied_message(self, proxy_address, msg):
+        raise NotImplementedError()