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# Copyright (c) 2004 Divmod.
# See LICENSE for details.
"""Compatibility wrapper over new twisted.python.components,
so that nevow works with it.
"""
import warnings
from zope.interface import Interface, implements as zimplements, Attribute
from twisted.python.components import *
warnings.warn("compy.py module is deprecated, use zope.interface and twisted.python.components.registerAdapter directly.",
stacklevel=2)
# Backwards compat code
CannotAdapt = TypeError
_registerAdapter = registerAdapter
def registerAdapter(adapterFactory, origInterface, *interfaceClasses):
from nevow.util import _namedAnyWithBuiltinTranslation, _NamedAnyError
isStr = type(adapterFactory) is str
if (type(origInterface) is str) != isStr:
raise ValueError("Either all arguments must be strings or all must be objects.")
for interfaceClass in interfaceClasses:
if (type(interfaceClass) is str) != isStr:
raise ValueError("Either all arguments must be strings or all must be objects.")
if isStr:
# print "registerAdapter:",adapterFactory, origInterface, interfaceClasses
adapterFactory = _namedAnyWithBuiltinTranslation(adapterFactory)
origInterface = _namedAnyWithBuiltinTranslation(origInterface)
interfaceClasses = [_namedAnyWithBuiltinTranslation(x) for x in interfaceClasses]
if 'nevow.inevow.ISerializable' in interfaceClasses or filter(
lambda o: getattr(o, '__name__', None) == 'ISerializable', interfaceClasses):
warnings.warn("ISerializable is deprecated. Please use nevow.flat.registerFlattener instead.", stacklevel=2)
from nevow import flat
flat.registerFlattener(adapterFactory, origInterface)
_registerAdapter(adapterFactory, origInterface, *interfaceClasses)
class IComponentized(Interface):
pass
_Componentized = Componentized
class Componentized(_Componentized):
zimplements(IComponentized)
def __init__(self, adapterCache=None):
_Componentized.__init__(self)
if adapterCache:
for k, v in adapterCache.items():
self.setComponent(k, v)
__all__ = ['globalRegistry', 'registerAdapter', 'backwardsCompatImplements', 'fixClassImplements',
'getInterfaces', 'IComponentized', 'Componentized', 'Adapter', 'CannotAdapt']
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