use oslo.utils.reflection extract the class name

The oslo.utils reflection module/code handles more variations
of where a class name may come from (on python 2 and python 3) so its
usage allows getting more accurate class names so we might as well use it.

Change-Id: I4b18aeec0a1b8b207c2c824b7e68dc8e51d34523

cloudpulse/common/exception.py

@@ -25,6 +25,7 @@ import uuid
 from keystoneclient import exceptions as keystone_exceptions
 from oslo_config import cfg
 from oslo_utils import excutils
+from oslo_utils import reflection
 import pecan
 import six
 import wsme
@@ -221,7 +222,8 @@ class CloudpulseException(Exception):
         return self.message
 
     def format_message(self):
-        if self.__class__.__name__.endswith('_Remote'):
+        cls_name = reflection.get_class_name(self, fully_qualified=False)
+        if cls_name.endswith('_Remote'):
             return self.args[0]
         else:
             return six.text_type(self)

cloudpulse/db/sqlalchemy/models.py

@@ -21,6 +21,7 @@ import json
 from oslo_config import cfg
 from oslo_db import options as db_options
 from oslo_db.sqlalchemy import models
+from oslo_utils import reflection
 import six.moves.urllib.parse as urlparse
 from sqlalchemy import Column
 from sqlalchemy.ext.declarative import declarative_base
@@ -64,13 +65,14 @@ class JsonEncodedType(TypeDecorator):
     impl = TEXT
 
     def process_bind_param(self, value, dialect):
+        cls_name = reflection.get_class_name(self, fully_qualified=False)
         if value is None:
             # Save default value according to current type to keep the
             # interface the consistent.
             value = self.type()
         elif not isinstance(value, self.type):
             raise TypeError("%s supposes to store %s objects, but %s given"
-                            % (self.__class__.__name__,
+                            % (cls_name,
                                self.type.__name__,
                                type(value).__name__))
         serialized_value = json.dumps(value)

cloudpulse/openstack/common/periodic_task.py

@@ -17,6 +17,7 @@ import random
 import time
 
 from oslo_config import cfg
+from oslo_utils import reflection
 import six
 
 from cloudpulse.openstack.common._i18n import _, _LE, _LI
@@ -200,9 +201,10 @@ class PeriodicTasks(object):
 
     def run_periodic_tasks(self, context, raise_on_error=False):
         """Tasks to be run at a periodic interval."""
+        cls_name = reflection.get_class_name(self, fully_qualified=False)
         idle_for = DEFAULT_INTERVAL
         for task_name, task in self._periodic_tasks:
-            full_task_name = '.'.join([self.__class__.__name__, task_name])
+            full_task_name = '.'.join([cls_name, task_name])
 
             spacing = self._periodic_spacing[task_name]
             last_run = self._periodic_last_run[task_name]