Fix improperly LOG using in Zaqar

In zaqar, there are some improperly log using in code tree. Like in some
place, should use LOG.exception not LOG.error, repeat log calling, etc.

Those could be optimized for better code.

Change-Id: I99b830c4db4f2b9449cad713f37474f5ecbce05e
Closes-Bug: #1543563

zaqar/bootstrap.py

@@ -28,6 +28,8 @@ from zaqar.storage import utils as storage_utils
 from zaqar.transport import base
 from zaqar.transport import validation
 
+from zaqar.i18n import _LE
+
 LOG = log.getLogger(__name__)
 
 
@@ -123,8 +125,8 @@ class Bootstrap(object):
             return mgr.driver
         except RuntimeError as exc:
             LOG.exception(exc)
-            LOG.error(u'Failed to load transport driver zaqar.transport.'
-                      u'%(driver)s with args %(args)s',
+            LOG.error(_LE(u'Failed to load transport driver zaqar.transport.'
+                          u'%(driver)s with args %(args)s'),
                       {'driver': transport_name, 'args': args})
             raise errors.InvalidDriver(exc)
 

zaqar/notification/notifier.py

@@ -19,6 +19,7 @@ import futurist
 from oslo_log import log as logging
 from six.moves import urllib_parse
 
+from zaqar.i18n import _LE
 from zaqar.storage import pooling
 
 LOG = logging.getLogger(__name__)
@@ -51,4 +52,4 @@ class NotifierDriver(object):
                 self.executor.submit(mgr.driver.execute, sub, messages,
                                      conf=data_driver.conf)
         else:
-            LOG.error('Failed to get subscription controller.')
+            LOG.error(_LE('Failed to get subscription controller.'))

zaqar/notification/task/mailto.py

@@ -43,8 +43,7 @@ class MailtoTask(object):
                 msg["subject"] = params.get('subject', subject_opt)
                 p.communicate(msg.as_string())
         except OSError as err:
-            LOG.error(_LE('Failed to create process for sendmail, '
-                          'because %s') % str(err))
+            LOG.exception(_LE('Failed to create process for sendmail, '
+                              'because %s.') % str(err))
         except Exception as exc:
-            LOG.exception(_LE('Failed to send email'))
-            LOG.exception(exc)
+            LOG.exception(_LE('Failed to send email because %s.') % str(exc))

zaqar/notification/task/webhook.py

@@ -17,6 +17,8 @@ import json
 from oslo_log import log as logging
 import requests
 
+from zaqar.i18n import _LE
+
 LOG = logging.getLogger(__name__)
 
 
@@ -29,4 +31,4 @@ class WebhookTask(object):
                               data=json.dumps(msg),
                               headers={'Content-Type': 'application/json'})
         except Exception as e:
-            LOG.error(e)
+            LOG.exception(_LE('webhook task got exception: %s.') % str(e))

zaqar/storage/mongodb/utils.py

@@ -28,7 +28,8 @@ from oslo_log import log as logging
 from oslo_utils import timeutils
 from pymongo import errors
 
-from zaqar.i18n import _
+from zaqar.i18n import _LE
+from zaqar.i18n import _LW
 from zaqar.storage import errors as storage_errors
 
 
@@ -287,14 +288,14 @@ def retries_on_autoreconnect(func):
                 break
 
             except errors.AutoReconnect as ex:
-                LOG.warning(_(u'Caught AutoReconnect, retrying the '
-                              'call to {0}').format(func))
+                LOG.warning(_LW(u'Caught AutoReconnect, retrying the '
+                                'call to {0}').format(func))
 
                 last_ex = ex
                 time.sleep(sleep_sec * (2 ** attempt))
         else:
-            LOG.error(_(u'Caught AutoReconnect, maximum attempts '
-                        'to {0} exceeded.').format(func))
+            LOG.error(_LE(u'Caught AutoReconnect, maximum attempts '
+                          'to {0} exceeded.').format(func))
 
             raise last_ex
 

zaqar/storage/redis/utils.py

@@ -23,7 +23,8 @@ from oslo_utils import encodeutils
 import redis
 import six
 
-from zaqar.i18n import _
+from zaqar.i18n import _LE
+from zaqar.i18n import _LW
 from zaqar.storage import errors
 
 LOG = logging.getLogger(__name__)
@@ -210,13 +211,13 @@ def retries_on_connection_error(func):
                 # MasterNotFoundError.
 
                 ex = sys.exc_info()[1]
-                LOG.warning(_(u'Caught ConnectionError, retrying the '
-                              'call to {0}').format(func))
+                LOG.warning(_LW(u'Caught ConnectionError, retrying the '
+                                'call to {0}').format(func))
 
                 time.sleep(sleep_sec * (2 ** attempt))
         else:
-            LOG.error(_(u'Caught ConnectionError, maximum attempts '
-                        'to {0} exceeded.').format(func))
+            LOG.error(_LE(u'Caught ConnectionError, maximum attempts '
+                          'to {0} exceeded.').format(func))
             raise ex
 
     return wrapper

zaqar/storage/utils.py

@@ -21,6 +21,7 @@ from stevedore import driver
 
 from zaqar.common import errors
 from zaqar.common import utils
+from zaqar.i18n import _LE
 
 LOG = log.getLogger(__name__)
 
@@ -140,8 +141,8 @@ def load_storage_driver(conf, cache, storage_type=None,
         return mgr.driver
 
     except Exception as exc:
-        LOG.error('Failed to load "{}" driver for "{}"'.format(driver_type,
-                                                               storage_type))
+        LOG.error(_LE('Failed to load "{}" driver for "{}"').format(
+            driver_type, storage_type))
         LOG.exception(exc)
         raise errors.InvalidDriver(exc)