if existing_handlers is not None:
for existing_handler in existing_handlers:
keys = set(existing_handler.keys())
keys.remove("created_time") // the new handler has none
values = [existing_handler[key] for key in keys]
if keys == new_keys and set(new_values) == set(values):
// if keep is True we will add a new one
After Change
existing_handlers = getattr(node, "request_handlers", None)
debug(f"> Updating Request Handlers with existing: {existing_handlers}")
if existing_handlers is not None:
matched = None
for existing_handler in existing_handlers:
// we match two handlers according to their tags
if existing_handler["tags"] == msg.handler["tags"]:
matched = existing_handler
// if an existing_handler match the passed in handler,
// we ignore it in for loop
continue
else:
// if an existing_handler does not match the passed in
// handler, we keep it
replacement_handlers.append(existing_handler)
if msg.keep:
msg.handler["created_time"] = time.time()
replacement_handlers.append(msg.handler)
if matched is not None:
debug(
f"> Replacing a Request Handler {matched} with: {msg.handler}"
)
else:
debug(f"> Adding a Request Handler {msg.handler}")
else:
debug(f"> Removing a Request Handler with: {msg.handler}")
setattr(node, "request_handlers", replacement_handlers)
