filters: Stop handling cells v1

Part of blueprint remove-cells-v1

Change-Id: Ie8c934b131df75ad275226d357b8ce5cb9453738

nova/filters.py

@@ -104,28 +104,20 @@ class BaseFilterHandler(loadables.BaseLoader):
                           {'cls_name': cls_name, 'obj_len': len(list_objs)})
         if not list_objs:
             # Log the filtration history
-            # NOTE(sbauza): Since the Cells scheduler still provides a legacy
-            # dictionary for filter_props, and since we agreed on not modifying
-            # the Cells scheduler to support that because of Cells v2, we
-            # prefer to define a compatible way to address both types
-            if isinstance(spec_obj, dict):
-                rspec = spec_obj.get("request_spec", {})
-                inst_props = rspec.get("instance_properties", {})
-                inst_uuid = inst_props.get("uuid", "")
-            else:
-                inst_uuid = spec_obj.instance_uuid
-            msg_dict = {"inst_uuid": inst_uuid,
-                        "str_results": str(full_filter_results),
-                       }
+            msg_dict = {
+                "inst_uuid": spec_obj.instance_uuid,
+                "str_results": str(full_filter_results),
+            }
             full_msg = ("Filtering removed all hosts for the request with "
                         "instance ID "
                         "'%(inst_uuid)s'. Filter results: %(str_results)s"
                        ) % msg_dict
-            msg_dict["str_results"] = str(part_filter_results)
-            part_msg = _LI("Filtering removed all hosts for the request with "
-                           "instance ID "
-                           "'%(inst_uuid)s'. Filter results: %(str_results)s"
-                           ) % msg_dict
             LOG.debug(full_msg)
+
+            msg_dict["str_results"] = str(part_filter_results)
+            part_msg = ("Filtering removed all hosts for the request with "
+                        "instance ID "
+                        "'%(inst_uuid)s'. Filter results: %(str_results)s"
+                       ) % msg_dict
             LOG.info(part_msg)
         return list_objs

nova/tests/unit/scheduler/test_filters.py

@@ -234,34 +234,3 @@ class FiltersTestCase(test.NoDBTestCase):
             cargs = mock_log.call_args[0][0]
             self.assertIn("with instance ID '%s'" % fake_uuid, cargs)
             self.assertIn(exp_output, cargs)
-
-    def test_get_filtered_objects_compatible_with_filt_props_dicts(self):
-        LOG = filters.LOG
-
-        class FilterA(filters.BaseFilter):
-            def filter_all(self, list_objs, spec_obj):
-                # return all but the first object
-                return list_objs[1:]
-
-        class FilterB(filters.BaseFilter):
-            def filter_all(self, list_objs, spec_obj):
-                # return an empty list
-                return []
-
-        filter_a = FilterA()
-        filter_b = FilterB()
-        all_filters = [filter_a, filter_b]
-        hosts = ["Host0", "Host1", "Host2"]
-        fake_uuid = uuids.instance
-        filt_props = {"request_spec": {"instance_properties": {
-                      "uuid": fake_uuid}}}
-        with mock.patch.object(LOG, "info") as mock_log:
-            result = self.filter_handler.get_filtered_objects(
-                    all_filters, hosts, filt_props)
-            self.assertFalse(result)
-            # FilterA should leave Host1 and Host2; FilterB should leave None.
-            exp_output = ("['FilterA: (start: 3, end: 2)', "
-                          "'FilterB: (start: 2, end: 0)']")
-            cargs = mock_log.call_args[0][0]
-            self.assertIn("with instance ID '%s'" % fake_uuid, cargs)
-            self.assertIn(exp_output, cargs)