KEY_CONTEXT          =                'context[{context_uuid}]'
KEY_TOPOLOGIES       = KEY_CONTEXT  + '/topologies{container_name}'
KEY_TOPOLOGY         = KEY_CONTEXT  + '/topology[{topology_uuid}]' 
KEY_DEVICES          = KEY_TOPOLOGY + '/devices{container_name}'
KEY_LINKS            = KEY_TOPOLOGY + '/links{container_name}'
KEY_DEVICE           = KEY_TOPOLOGY + '/device[{device_uuid}]' 
KEY_DEVICE_ENDPOINTS = KEY_DEVICE   + '/endpoints{container_name}'
KEY_ENDPOINT         = KEY_DEVICE   + '/endpoint[{endpoint_uuid}]' 
KEY_LINK             = KEY_TOPOLOGY + '/link[{link_uuid}]' 
KEY_LINK_ENDPOINTS   = KEY_LINK     + '/endpoints{container_name}'
KEY_LINK_ENDPOINT    = KEY_LINK     + '/endpoint[{link_endpoint_uuid}]'