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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# 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.
"""
Nova base exception handling, including decorator for re-raising
Nova-type exceptions. SHOULD include dedicated exception logging.
"""
import logging
import sys
import traceback
class ProcessExecutionError(IOError):
def __init__(self, stdout=None, stderr=None, exit_code=None, cmd=None,
description=None):
if description is None:
description = "Unexpected error while running command."
if exit_code is None:
exit_code = '-'
message = "%s\nCommand: %s\nExit code: %s\nStdout: %r\nStderr: %r" % (
description, cmd, exit_code, stdout, stderr)
IOError.__init__(self, message)
class Error(Exception):
def __init__(self, message=None):
super(Error, self).__init__(message)
class ApiError(Error):
def __init__(self, message='Unknown', code='Unknown'):
self.message = message
self.code = code
super(ApiError, self).__init__('%s: %s' % (code, message))
class NotFound(Error):
pass
class Duplicate(Error):
pass
class NotAuthorized(Error):
pass
class NotEmpty(Error):
pass
class Invalid(Error):
pass
class InvalidInputException(Error):
pass
def wrap_exception(f):
def _wrap(*args, **kw):
try:
return f(*args, **kw)
except Exception, e:
if not isinstance(e, Error):
#exc_type, exc_value, exc_traceback = sys.exc_info()
logging.exception('Uncaught exception')
#logging.error(traceback.extract_stack(exc_traceback))
raise Error(str(e))
raise
_wrap.func_name = f.func_name
return _wrap
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