# 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.
Includes decorator for re-raising Nova-type exceptions.
SHOULD include dedicated exception logging.
"""
import functools
import itertools
import webob.exc
from nova.openstack.common import excutils
from nova.openstack.common import log as logging
LOG = logging.getLogger(__name__)
class ConvertedException(webob.exc.WSGIHTTPException):
def __init__(self, code=0, title="", explanation=""):
self.code = code
self.title = title
self.explanation = explanation
super(ConvertedException, self).__init__()
class ProcessExecutionError(IOError):
def __init__(self, stdout=None, stderr=None, exit_code=None, cmd=None,
description=None):
self.exit_code = exit_code
self.stderr = stderr
self.stdout = stdout
self.cmd = cmd
self.description = description
if description is None:
description = _('Unexpected error while running command.')
if exit_code is None:
exit_code = '-'
message = _('%(description)s\nCommand: %(cmd)s\n'
'Exit code: %(exit_code)s\nStdout: %(stdout)r\n'
'Stderr: %(stderr)r') % locals()
IOError.__init__(self, message)
def wrap_db_error(f):
def _wrap(*args, **kwargs):
try:
return f(*args, **kwargs)
except UnicodeEncodeError:
raise InvalidUnicodeParameter()
except Exception, e:
LOG.exception(_('DB exception wrapped.'))
raise DBError(e)
_wrap.func_name = f.func_name
return _wrap
def wrap_exception(notifier=None, publisher_id=None, event_type=None,
level=None):
"""This decorator wraps a method to catch any exceptions that may
| 