Proxy MD-SAL interfaces in DOMMountPointServiceImpl
This patch deals with the case where a mount point is registered
via Controller interfaces and then accessed via MD-SAL interfaces
by providing any missing MD-SAL services via proxies built on top
of their Controller counterparts.
This also adds utility convertors to DOM{DataTree,Rpc}Identifier,
so they are readily available.
JIRA: CONTROLLER-1869
Change-Id: Iece3f1d2a2bba58669114f6f8b8abf89fd188690
Signed-off-by: Robert Varga <robert.varga@pantheon.tech>
(cherry picked from commit
e1ede0942d3bff1f1b150816e6bfa96ed9366c20)