objects: introduce object for extra dhcp options

This patch introduces a new versioned object for extra dhcp options. It
will be adopted in Neutron in Newton.

Change-Id: I45b54b80d994f7e7f06128f73256b94675db97b2
Partial-Bug: #1541928

neutron/objects/port/extensions/extra_dhcp_opt.py

@@ -0,0 +1,33 @@
+#    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 oslo_versionedobjects import base as obj_base
+from oslo_versionedobjects import fields as obj_fields
+
+from neutron.db import extradhcpopt_db as models
+from neutron.objects import base
+
+
+@obj_base.VersionedObjectRegistry.register
+class ExtraDhcpOpt(base.NeutronDbObject):
+    # Version 1.0: Initial version
+    VERSION = '1.0'
+
+    db_model = models.ExtraDhcpOpt
+
+    fields = {
+         'id': obj_fields.UUIDField(),
+         'port_id': obj_fields.UUIDField(),
+         'opt_name': obj_fields.StringField(),
+         'opt_value': obj_fields.StringField(),
+         'ip_version': obj_fields.IntegerField(),
+    }

neutron/tests/unit/objects/port/extensions/test_extra_dhcp_opt.py

@@ -0,0 +1,35 @@
+#    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 neutron.objects.port.extensions import extra_dhcp_opt
+from neutron.tests.unit.objects import test_base as obj_test_base
+from neutron.tests.unit import testlib_api
+
+
+class ExtraDhcpOptIfaceObjectTestCase(obj_test_base.BaseObjectIfaceTestCase):
+
+    _test_class = extra_dhcp_opt.ExtraDhcpOpt
+
+
+class ExtraDhcpOptDbObjectTestCase(obj_test_base.BaseDbObjectTestCase,
+                                   testlib_api.SqlTestCase):
+
+    _test_class = extra_dhcp_opt.ExtraDhcpOpt
+
+    def setUp(self):
+        super(ExtraDhcpOptDbObjectTestCase, self).setUp()
+        self._create_test_network()
+        self._create_test_port(self._network)
+        for obj in self.db_objs:
+            obj['port_id'] = self._port['id']
+        for obj in self.obj_fields:
+            obj['port_id'] = self._port['id']

neutron/tests/unit/objects/test_objects.py

@@ -26,6 +26,7 @@ from neutron.tests import tools
 # NOTE: The hashes in this list should only be changed if they come with a
 # corresponding version bump in the affected objects.
 object_data = {
+    'ExtraDhcpOpt': '1.0-632f689cbeb36328995a7aed1d0a78d3',
     'QosBandwidthLimitRule': '1.1-4e44a8f5c2895ab1278399f87b40a13d',
     'QosDscpMarkingRule': '1.1-0313c6554b34fd10c753cb63d638256c',
     'QosRuleType': '1.1-8a53fef4c6a43839d477a85b787d22ce',