+ # since hostname was specified lets add the 'hrn' node tag
+ root_auth = self.api.config.PLC_HRN_ROOT
+ login_base = site['login_base']
+ tags['hrn'] = hostname_to_hrn(root_auth, login_base, node['hostname'])
+
+ for (tagname,value) in tags.iteritems():
+ # the tagtype instance is assumed to exist, just check that
+ if not TagTypes(self.api,{'tagname':tagname}):
+ raise PLCInvalidArgument,"No such TagType %s"%tagname
+ node_tags=NodeTags(self.api,{'tagname':tagname,'node_id':node['node_id']})
+ if not node_tags:
+ AddNodeTag(self.api).__call__(auth,node['node_id'],tagname,value)
+ else:
+ UpdateNodeTag(self.api).__call__(auth,node_tags[0]['node_tag_id'],value)