... '${uri}'=='${EMPTY}'
... ${REST_API}/${TOPOLOGY_URL}=pcep-topology?content=nonconfig
... ${REST_API}/${TOPOLOGY_URL}=pcep-topology/${uri}?content=nonconfig
... '${uri}'=='${EMPTY}'
... ${REST_API}/${TOPOLOGY_URL}=pcep-topology?content=nonconfig
... ${REST_API}/${TOPOLOGY_URL}=pcep-topology/${uri}?content=nonconfig