[NETCONF-1176] Improve failed YANG patch error output

Issue split — Thu, 9 Nov 2023 14:43:53 +0000

On data Patch request processing (see PatchDataTransactionUtil.patchData(…))

each operation is processed in a sequence, per-operation status is registered

if there was no per-operation error then commit() is called, commit error is registered as a global error

For case when error occurs on commit the result displays global error together with per-operation status (all success) which is confusing and self contradicting.

Expected: I there is a global error then per-operation status should be omitted (dropped) bc it always displays all successes

Scope: JsonPatchBodyWriter + XmlPatchBodyWriter, ensure behavior is covered by unit tests.

OpenDaylight JIRA

[NETCONF-1176] Improve failed YANG patch error output