os-vif/os_vif/exception.py

97 lines
3.2 KiB
Python

# 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 os_vif.i18n import _
class ExceptionBase(Exception):
"""Base Exception
To correctly use this class, inherit from it and define
a 'msg_fmt' property. That msg_fmt will get printf'd
with the keyword arguments provided to the constructor.
"""
msg_fmt = _("An unknown exception occurred.")
def __init__(self, message=None, **kwargs):
self.kwargs = kwargs
if not message:
try:
message = self.msg_fmt % kwargs
except Exception:
# at least get the core message out if something happened
message = self.msg_fmt
self.message = message
super(ExceptionBase, self).__init__(message)
def format_message(self):
# NOTE(mrodden): use the first argument to the python Exception object
# which should be our full NovaException message, (see __init__)
return self.args[0]
class LibraryNotInitialized(ExceptionBase):
msg_fmt = _("Before using the os_vif library, you need to call "
"os_vif.initialize()")
class NoMatchingPlugin(ExceptionBase):
msg_fmt = _("No VIF plugin was found with the name %(plugin_name)s")
class NoMatchingPortProfileClass(ExceptionBase):
msg_fmt = _("No PortProfile class was found with the name %(name)s")
class NoSupportedPortProfileVersion(ExceptionBase):
msg_fmt = _("PortProfile class %(name)s "
"versions %(got_versions)s do not satisfy "
"min=%(min_version)s max=%(max_version)s")
class NoMatchingVIFClass(ExceptionBase):
msg_fmt = _("No VIF class was found with the name %(name)s")
class NoSupportedVIFVersion(ExceptionBase):
msg_fmt = _("VIF class %(name)s versions %(got_versions)s "
"do not satisfy min=%(min_version)s max=%(max_version)s")
class PlugException(ExceptionBase):
msg_fmt = _("Failed to plug VIF %(vif)s. Got error: %(err)s")
class UnplugException(ExceptionBase):
msg_fmt = _("Failed to unplug VIF %(vif)s. Got error: %(err)s")
class NetworkMissingPhysicalNetwork(ExceptionBase):
msg_fmt = _("Physical network is missing for network %(network_uuid)s")
class NetworkInterfaceNotFound(ExceptionBase):
msg_fmt = _("Network interface %(interface)s not found")
class NetworkInterfaceTypeNotDefined(ExceptionBase):
msg_fmt = _("Network interface type %(type)s not defined")
class ExternalImport(ExceptionBase):
msg_fmt = _("Use of this module outside of os_vif is not allowed. It must "
"not be imported in os-vif plugins that are out of tree as it "
"is not a public interface of os-vif.")