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Remove shadow BaseException class

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The BaseException class defined in exceptions.py is shadowing the
built-in BaseException class of the Python exception hierarchy, which
could potentially cause confusion.

This removes the BaseException definition and replaces it with the
existing WatcherException object.  Instantiations of the
IllegalArgumentException are also changed to use the message kwarg.

Change-Id: I20abf135805c7a354924de8a5194b59fc040460a
Closes-Bug: #1535504
This commit is contained in:
Taylor Peoples
2016-01-19 04:55:14 +01:00
parent 7fcb683404
commit a7455a8bf7
3 changed files with 9 additions and 44 deletions
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2
watcher/applier/primitives/change_nova_service_state.py
View File

@@ -63,7 +63,7 @@ class ChangeNovaServiceState(base.BasePrimitive):
def nova_manage_service(self, state): def nova_manage_service(self, state):
if state is None: if state is None:
raise exception.IllegalArgumentException( raise exception.IllegalArgumentException(
_("The target state is not defined")) message=_("The target state is not defined"))
keystone = kclient.KeystoneClient() keystone = kclient.KeystoneClient()
wrapper = nclient.NovaClient(keystone.get_credentials(), wrapper = nclient.NovaClient(keystone.get_credentials(),

47
watcher/common/exception.py
View File

@@ -220,51 +220,16 @@ class PatchError(Invalid):
# decision engine # decision engine
class BaseException(Exception): class IllegalArgumentException(WatcherException):
msg_fmt = _('Illegal argument')
def __init__(self, desc=""):
if (not isinstance(desc, six.string_types)):
raise ValueError(_("Description must be an instance of str"))
desc = desc.strip()
self._desc = desc
def get_description(self):
return self._desc
def get_message(self):
return _("An exception occurred without a description")
def __str__(self):
return self.get_message()
class IllegalArgumentException(BaseException): class NoSuchMetric(WatcherException):
def __init__(self, desc): msg_fmt = _('No such metric')
desc = desc or _("Description cannot be empty")
super(IllegalArgumentException, self).__init__(desc)
def get_message(self):
return self._desc
class NoSuchMetric(BaseException): class NoDataFound(WatcherException):
def __init__(self, desc): msg_fmt = _('No rows were returned')
desc = desc or _("No such metric")
super(NoSuchMetric, self).__init__(desc)
def get_message(self):
return self._desc
class NoDataFound(BaseException):
def __init__(self, desc):
desc = desc or _("No rows were returned")
super(NoDataFound, self).__init__(desc)
def get_message(self):
return self._desc
class KeystoneFailure(WatcherException): class KeystoneFailure(WatcherException):

4
watcher/decision_engine/model/model_root.py
View File

@@ -34,12 +34,12 @@ class ModelRoot(object):
def assert_hypervisor(self, obj): def assert_hypervisor(self, obj):
if not isinstance(obj, hypervisor.Hypervisor): if not isinstance(obj, hypervisor.Hypervisor):
raise exception.IllegalArgumentException( raise exception.IllegalArgumentException(
_("'obj' argument type is not valid")) message=_("'obj' argument type is not valid"))
def assert_vm(self, obj): def assert_vm(self, obj):
if not isinstance(obj, vm.VM): if not isinstance(obj, vm.VM):
raise exception.IllegalArgumentException( raise exception.IllegalArgumentException(
_("'obj' argument type is not valid")) message=_("'obj' argument type is not valid"))
def add_hypervisor(self, hypervisor): def add_hypervisor(self, hypervisor):
self.assert_hypervisor(hypervisor) self.assert_hypervisor(hypervisor)