def utility(_context, provides=None, component=None, factory=None,
permission=None, name=''):
if factory and component:
raise TypeError("Can't specify factory and component.")
if provides is None:
if factory:
provides = list(implementedBy(factory))
else:
provides = list(providedBy(component))
if len(provides) == 1:
provides = provides[0]
else:
raise TypeError("Missing 'provides' attribute")
if name == '':
if factory:
name = getName(factory)
else:
name = getName(component)
if permission is not None:
component = proxify(component, provides=provides, permission=permission)
_context.action(
discriminator = ('utility', provides, name),
callable = handler,
args = ('registerUtility', component, provides, name, _context.info),
kw = dict(factory=factory),
)
_context.action(
discriminator = None,
callable = provideInterface,
args = ('', provides),
)
def adapter(_context,
factory,
provides=None,
for_=None,
permission=None,
name='',
trusted=False,
locate=False):
if for_ is None:
if len(factory) == 1:
for_ = adaptedBy(factory[0])
if for_ is None:
raise TypeError("No for attribute was provided and can't "
"determine what the factory adapts.")
for_ = tuple(for_)
if provides is None:
if len(factory) == 1:
p = list(implementedBy(factory[0]))
if len(p) == 1:
provides = p[0]
if provides is None:
raise TypeError("Missing 'provides' attribute")
if name == '':
if len(factory) == 1:
name = getName(factory[0])
# Generate a single factory from multiple factories:
factories = factory
if len(factories) == 1:
factory = factories[0]
elif len(factories) < 1:
raise ComponentConfigurationError("No factory specified")
elif len(factories) > 1 and len(for_) != 1:
raise ComponentConfigurationError(
"Can't use multiple factories and multiple for")
else:
factory = _rolledUpFactory(factories)
if permission is not None:
factory = protectedFactory(factory, provides, permission)
# invoke custom adapter factories
if locate or permission is not None or trusted:
factory = securityAdapterFactory(factory, permission, locate, trusted)
_context.action(
discriminator=('adapter', for_, provides, name),
callable=handler,
args=('registerAdapter', factory, for_, provides, name, _context.info),
)
_context.action(discriminator=None,
callable=provideInterface,
args=('', provides))
if for_:
for iface in for_:
if iface is not None:
_context.action(discriminator=None,
callable=provideInterface,
args=('', iface))
def adapter(_context, factory, provides=None, for_=None, permission=None,
name='', trusted=False, locate=False):
if for_ is None:
if len(factory) == 1:
for_ = adaptedBy(factory[0])
if for_ is None:
raise TypeError("No for attribute was provided and can't "
"determine what the factory adapts.")
for_ = tuple(for_)
if provides is None:
if len(factory) == 1:
p = list(implementedBy(factory[0]))
if len(p) == 1:
provides = p[0]
if provides is None:
raise TypeError("Missing 'provides' attribute")
if name == '':
if len(factory) == 1:
name = getName(factory[0])
# Generate a single factory from multiple factories:
factories = factory
if len(factories) == 1:
factory = factories[0]
elif len(factories) < 1:
raise ComponentConfigurationError("No factory specified")
elif len(factories) > 1 and len(for_) != 1:
raise ComponentConfigurationError(
"Can't use multiple factories and multiple for")
else:
factory = _rolledUpFactory(factories)
if permission is not None:
factory = protectedFactory(factory, provides, permission)
# invoke custom adapter factories
if locate or permission is not None or trusted:
factory = securityAdapterFactory(factory, permission, locate, trusted)
_context.action(
discriminator = ('adapter', for_, provides, name),
callable = handler,
args = ('registerAdapter',
factory, for_, provides, name, _context.info),
)
_context.action(
discriminator = None,
callable = provideInterface,
args = ('', provides)
)
if for_:
for iface in for_:
if iface is not None:
_context.action(
discriminator = None,
callable = provideInterface,
args = ('', iface)
)
