// toTriple converts an Entry to the triple file format. Returns an error if
// the entry is not valid.
func toTriple(entry *spb.Entry) (*rdf.Triple, error) {
if entry.Source == nil || (entry.Target == nil) != (entry.EdgeKind == "") {
return nil, fmt.Errorf("invalid entry: %v", entry)
}
t := &rdf.Triple{
Subject: kytheuri.FromVName(entry.Source).String(),
}
if entry.EdgeKind != "" {
t.Predicate = entry.EdgeKind
t.Object = kytheuri.FromVName(entry.Target).String()
} else {
t.Predicate = entry.FactName
t.Object = string(entry.FactValue)
}
return t, nil
}
// toTriple converts an Entry to the triple file format. Returns an error if
// the entry is not valid.
func toTriple(entry *spb.Entry) (*rdf.Triple, error) {
if err := graphstore.ValidEntry(entry); err != nil {
return nil, fmt.Errorf("invalid entry {%+v}: %v", entry, err)
}
t := &rdf.Triple{
Subject: kytheuri.FromVName(entry.Source).String(),
}
if graphstore.IsEdge(entry) {
t.Predicate = entry.EdgeKind
t.Object = kytheuri.FromVName(entry.Target).String()
} else {
t.Predicate = entry.FactName
t.Object = string(entry.FactValue)
}
return t, nil
}