def get_target_delegate(
self, target: Any, request: httputil.HTTPServerRequest, **target_params: Any
) -> Optional[httputil.HTTPMessageDelegate]:
"""Returns an instance of `~.httputil.HTTPMessageDelegate` for a
Rule's target. This method is called by `~.find_handler` and can be
extended to provide additional target types.
:arg target: a Rule's target.
:arg httputil.HTTPServerRequest request: current request.
:arg target_params: additional parameters that can be useful
for `~.httputil.HTTPMessageDelegate` creation.
"""
if isinstance(target, Router):
return target.find_handler(request, **target_params)
elif isinstance(target, httputil.HTTPServerConnectionDelegate):
assert request.connection is not None
return target.start_request(request.server_connection, request.connection)
elif callable(target):
assert request.connection is not None
return _CallableAdapter(
partial(target, **target_params), request.connection
)
return None
def get_target_delegate(
self, target: Any, request: httputil.HTTPServerRequest,
**target_params: Any) -> Optional[httputil.HTTPMessageDelegate]:
"""Returns an instance of `~.httputil.HTTPMessageDelegate` for a
Rule's target. This method is called by `~.find_handler` and can be
extended to provide additional target types.
:arg target: a Rule's target.
:arg httputil.HTTPServerRequest request: current request.
:arg target_params: additional parameters that can be useful
for `~.httputil.HTTPMessageDelegate` creation.
"""
if isinstance(target, Router):
return target.find_handler(request, **target_params)
elif isinstance(target, httputil.HTTPServerConnectionDelegate):
assert request.connection is not None
return target.start_request(request.server_connection,
request.connection)
elif callable(target):
assert request.connection is not None
return _CallableAdapter(partial(target, **target_params),
request.connection)
return None
def start_request(self, server_conn, request_conn):
if isinstance(self.request_callback,
httputil.HTTPServerConnectionDelegate):
delegate = self.request_callback.start_request(
server_conn, request_conn)
else:
delegate = _CallableAdapter(self.request_callback, request_conn)
if self.xheaders:
delegate = _ProxyAdapter(delegate, request_conn)
return delegate