Files
deb-python-taskflow/taskflow/exceptions.py

56 lines
1.6 KiB
Python

# -*- coding: utf-8 -*-
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (C) 2012 Yahoo! Inc. All Rights Reserved.
#
# 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 taskflow.openstack.common import exception as exc
class TaskFlowException(exc.Error):
"""Base class for exceptions emitted from this library."""
pass
class NotFound(TaskFlowException):
"""Raised when some entry in some object doesn't exist."""
pass
class AlreadyExists(TaskFlowException):
"""Raised when some entry in some object already exists."""
pass
class ClosedException(TaskFlowException):
"""Raised when an access on a closed object occurs."""
pass
class InvalidStateException(TaskFlowException):
"""Raised when a task/job/workflow is in an invalid state when an
operation is attempting to apply to said task/job/workflow."""
pass
class UnclaimableJobException(TaskFlowException):
"""Raised when a job can not be claimed."""
pass
class JobNotFound(TaskFlowException):
"""Raised when a job entry can not be found."""
pass