+ urn = pg_node_element.xpath('@component_uuid | @component_id')
+ if urn:
+ urn = urn[0]
+ hostname = Xrn.urn_split(urn)[-1]
+ hostname_element = sfa_rspec.add_element('hostname', parent=node_element, text=hostname)
+ if hostname in nodes_with_slivers:
+ sfa_rspec.add_element('sliver', parent=node_element)
+