From fdae11466d9e5237db83e4ccf01300470f86af59 Mon Sep 17 00:00:00 2001
From: Jan David Mol <mol@astron.nl>
Date: Wed, 27 Oct 2021 20:34:00 +0000
Subject: [PATCH] L2SS-465: Support get_node([]) to avoid a breaking edge case
---
.../tangostationcontrol/clients/opcua_client.py | 3 +++
1 file changed, 3 insertions(+)
diff --git a/tangostationcontrol/tangostationcontrol/clients/opcua_client.py b/tangostationcontrol/tangostationcontrol/clients/opcua_client.py
index 87d283c25..f0c246a69 100644
--- a/tangostationcontrol/tangostationcontrol/clients/opcua_client.py
+++ b/tangostationcontrol/tangostationcontrol/clients/opcua_client.py
@@ -136,6 +136,9 @@ class OPCUAConnection(AsyncCommClient):
async def get_node(self, path):
""" Retrieve an OPC-UA node from either the cache, or the server. """
+ if not path:
+ return self.obj
+
cache_key = ",".join(path)
# lookup in cache
--
GitLab