VOL-1398: Adtran-ONU - Initial containerization commit

Change-Id: I7afcc1ad65b9ef80da994b0b0ddf74860911bb46
diff --git a/adapters/adtran_onu/omci/adtn_mib_resync_task.py b/adapters/adtran_onu/omci/adtn_mib_resync_task.py
new file mode 100644
index 0000000..500ee02
--- /dev/null
+++ b/adapters/adtran_onu/omci/adtn_mib_resync_task.py
@@ -0,0 +1,67 @@
+#
+# Copyright 2017 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 voltha.extensions.omci.tasks.mib_resync_task import MibResyncTask
+from voltha.extensions.omci.omci_entities import GalEthernetProfile, GemPortNetworkCtp, \
+    Ieee8021pMapperServiceProfile
+
+
+class AdtnMibResyncTask(MibResyncTask):
+    """
+    ADTRAN MIB resynchronization Task
+
+    The ADTRAN IBONT 602 does not report the current value of the GAL Ethernet
+    Payload size, it is always 0.
+
+    Also, the MEF EVC/EVC-MAP code monitors GEM Port CTP ME
+    """
+    def __init__(self, omci_agent, device_id):
+        """
+        Class initialization
+
+        :param omci_agent: (OpenOMCIAgent) OMCI Adapter agent
+        :param device_id: (str) ONU Device ID
+        """
+        super(AdtnMibResyncTask, self).__init__(omci_agent, device_id)
+        self.omci_fixed = False
+
+    def compare_mibs(self, db_copy, db_active):
+        """
+        Compare the our db_copy with the ONU's active copy
+
+        :param db_copy: (dict) OpenOMCI's copy of the database
+        :param db_active: (dict) ONU's database snapshot
+        :return: (dict), (dict), (list)  Differences
+        """
+        on_olt_only, on_onu_only, attr_diffs = super(AdtnMibResyncTask, self).\
+            compare_mibs(db_copy, db_active)
+
+        if not self.omci_fixed:
+            # Exclude 'max_gem_payload_size' in GAL Ethernet Profile
+            attr_diffs = [attr for attr in attr_diffs
+                          if attr[0] != GalEthernetProfile.class_id
+                          or attr[2] != 'max_gem_payload_size']
+
+            # Exclude any changes to GEM Port Network CTP
+            attr_diffs = [attr for attr in attr_diffs
+                          if attr[0] != GemPortNetworkCtp.class_id]
+
+            if on_olt_only is not None:
+                # Exclude IEEE 8021.p Mapper Service Profile from OLT Only as not
+                # reported in current IBONT 602 software
+                on_olt_only = [(cid, eid) for cid, eid in on_olt_only
+                               if cid != Ieee8021pMapperServiceProfile.class_id]
+
+        return on_olt_only, on_onu_only, attr_diffs