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# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You 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,
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# limitations under the License.
import sys
from functools import wraps
from libcloud.common.types import LibcloudError
__all__ = [
'wrap_non_libcloud_exceptions'
]
[docs]def wrap_non_libcloud_exceptions(func):
"""
Decorators function which catches non LibcloudError exceptions, wraps them
in LibcloudError class and re-throws the wrapped exception.
Note: This function should only be used to wrap methods on the driver
classes.
"""
@wraps(func)
def decorated_function(*args, **kwargs):
try:
return func(*args, **kwargs)
except Exception:
e = sys.exc_info()[1]
if isinstance(e, LibcloudError):
raise e
if len(args) >= 1:
driver = args[0]
else:
driver = None
fault = getattr(e, 'fault', None)
if fault and getattr(fault, 'string', None):
message = fault.string
else:
message = e.message
raise LibcloudError(value=message, driver=driver)
return decorated_function