def bungeni_custom_errors(f):
"""Decorator to intercept any error raised by function f and re-raise it
as a BungeniCustomError. To be used to decorate any function involved
in reading/validating/processing any bungeni_custom parameters.
"""
class BungeniCustomError(Exception):
"""A Localization Error.
"""
return error.exceptions_as(BungeniCustomError, True)(f)
def bungeni_custom_errors(f):
"""Decorator to intercept any error raised by function f and re-raise it
as a BungeniCustomError. To be used to decorate any function involved
in reading/validating/processing any bungeni_custom parameters.
"""
class BungeniCustomError(Exception):
"""A Localization Error.
"""
return error.exceptions_as(BungeniCustomError, True)(f)
def wrapped_callable(unwrapped):
assert callable(unwrapped), unwrapped
# Can re-use wrapped versions of *same* function -- on current config
# (apr-2013), each wrapped function (on total of 45) is used more than
# 5 times; with this each is created only once, as opposed to an
# average of 5+ times. So, a little reduction in app runtime memory.
if unwrapped in wrapped_callable.REUSE:
wrapped_callable.REUSE_COUNT += 1
return wrapped_callable.REUSE[unwrapped]
wrapped = error.exceptions_as(BungeniCustomRuntimeError,
# a variety of sub-types of such an exception is *normal* and
# expected and part of the internal implementation of zope.formlib
# e.g. checkInvariants! So, may not re-raise them as another type...
other_than=(zope.interface.Invalid,)
)(unwrapped)
# remember original unwrapped callable/details
wrapped._unwrapped = unwrapped
wrapped.__name__ = unwrapped.__name__
wrapped_callable.REUSE[unwrapped] = wrapped
return wrapped
