def install_event_hooks(self):
from config import EVENT_HOOKS
for hook_cls in EVENT_HOOKS:
hook = utils.module_resolver(hook_cls)
if hook:
hook.install()
else:
app_log.error("Event Hook %s cannot be resolved" % hook_cls)
def install_middleware(self):
from config import MIDDLEWARE_CLASSES
context["middleware"] = set()
for name in MIDDLEWARE_CLASSES:
module = utils.module_resolver(name)
if module:
context["middleware"].add(module())
app_log.debug("Middleware [%s] register ok" % name)
else:
app_log.error("Middleware [%s] cannot be resolved" % name)
def install_message_backend(self):
def shutdown_message_backend():
context.get("message_backend").close()
del context["message_backend"]
app_log.debug("message backend closed!")
try:
import config
backend_cls = utils.module_resolver(config.MESSAGE_BACKEND)
context["message_backend"] = backend_cls(config)
connection_future = context.get("message_backend").create_connection()
IOLoop.instance().add_future(connection_future, lambda future: future.result())
self._shutdown_callback.append(shutdown_message_backend)
app_log.debug("%s install ok" % config.MESSAGE_BACKEND)
except:
pass