def runnable(fn, *args, **kwargs):
"""
Decorator to make a method into an asynchronous method run on a thread.
Only supports threads do to a pickling problem with decorators across process
boundaries. In addition, it sets up a cloned RequestContext so that data can
be shared across RequestContext boundaries. The thread run within its own
RequestContext boundary but has access to the data of the calling request.
@runnable
def foo():
pass
:return: a Future
"""
# create a cloned copy of the existing RequestContext
request_ctx = RequestContextManager.get_context().clone(
) if RequestContextManager.active() else None
def execution_wrapper():
# enable RequestContext on current thread
with StackContext(RequestContextManager(request_ctx).context_manager):
return fn(*args, **kwargs)
return Executor().get_executor(threaded=True).submit(execution_wrapper)
def active(self):
return RequestContextManager.active() and \
"security_context" in RequestContextManager.get_context()
def _assert_request_context(self):
if not RequestContextManager.active():
raise RequestContextError("Authentication provider cannot access request context.")
def request_context_scoped(self):
return RequestContextManager.active()
def request_context_scoped(self):
return RequestContextManager.active()
def get_requests(self):
access_store = self.__request_store if RequestContextManager.active(
) else _local_access_history
return access_store.history
def active(self):
return RequestContextManager.active() and \
"security_context" in RequestContextManager.get_context()
def _assert_request_context(self):
if not RequestContextManager.active():
raise RequestContextError(
"Authentication provider cannot access request context.")