130 lines
3.4 KiB
Python
130 lines
3.4 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2010 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Nova base exception handling, including decorator for re-raising
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Nova-type exceptions. SHOULD include dedicated exception logging.
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"""
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from nova import log as logging
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LOG = logging.getLogger('nova.exception')
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class ProcessExecutionError(IOError):
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def __init__(self, stdout=None, stderr=None, exit_code=None, cmd=None,
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description=None):
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if description is None:
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description = _("Unexpected error while running command.")
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if exit_code is None:
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exit_code = '-'
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message = _("%(description)s\nCommand: %(cmd)s\n"
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"Exit code: %(exit_code)s\nStdout: %(stdout)r\n"
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"Stderr: %(stderr)r") % locals()
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IOError.__init__(self, message)
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class Error(Exception):
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def __init__(self, message=None):
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super(Error, self).__init__(message)
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class ApiError(Error):
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def __init__(self, message='Unknown', code='ApiError'):
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self.message = message
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self.code = code
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super(ApiError, self).__init__('%s: %s' % (code, message))
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class NotFound(Error):
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pass
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class InstanceNotFound(NotFound):
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def __init__(self, message, instance_id):
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self.instance_id = instance_id
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super(InstanceNotFound, self).__init__(message)
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class VolumeNotFound(NotFound):
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def __init__(self, message, volume_id):
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self.volume_id = volume_id
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super(VolumeNotFound, self).__init__(message)
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class Duplicate(Error):
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pass
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class NotAuthorized(Error):
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pass
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class NotEmpty(Error):
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pass
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class Invalid(Error):
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pass
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class InvalidInputException(Error):
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pass
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class InvalidContentType(Error):
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pass
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class TimeoutException(Error):
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pass
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class DBError(Error):
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"""Wraps an implementation specific exception"""
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def __init__(self, inner_exception):
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self.inner_exception = inner_exception
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super(DBError, self).__init__(str(inner_exception))
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def wrap_db_error(f):
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def _wrap(*args, **kwargs):
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try:
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return f(*args, **kwargs)
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except Exception, e:
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LOG.exception(_('DB exception wrapped'))
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raise DBError(e)
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return _wrap
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_wrap.func_name = f.func_name
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def wrap_exception(f):
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def _wrap(*args, **kw):
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try:
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return f(*args, **kw)
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except Exception, e:
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if not isinstance(e, Error):
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#exc_type, exc_value, exc_traceback = sys.exc_info()
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LOG.exception(_('Uncaught exception'))
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#logging.error(traceback.extract_stack(exc_traceback))
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raise Error(str(e))
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raise
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_wrap.func_name = f.func_name
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return _wrap
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