// WriteFile is used to dump RDF from a Graph into a file
func (g *Graph) WriteFile(file *os.File, mime string) error {
serializerName := mimeSerializer[mime]
if len(serializerName) == 0 {
serializerName = "turtle"
}
serializer := crdf.NewSerializer(serializerName)
defer serializer.Free()
err := serializer.SetFile(file, g.uri)
if err != nil {
return err
}
ch := make(chan *crdf.Statement, 1024)
go func() {
for triple := range g.IterTriples() {
ch <- &crdf.Statement{
Subject: term2C(triple.Subject),
Predicate: term2C(triple.Predicate),
Object: term2C(triple.Object),
}
}
close(ch)
}()
serializer.AddN(ch)
return nil
}
// Serialize is used to serialize a graph based on a given mime type
func (g *Graph) Serialize(mime string) (string, error) {
if mime == "application/ld+json" {
b, err := g.serializeJSONLd()
return string(b), err
}
serializerName := mimeSerializer[mime]
if len(serializerName) == 0 {
serializerName = "turtle"
}
serializer := crdf.NewSerializer(serializerName)
defer serializer.Free()
ch := make(chan *crdf.Statement, 1024)
go func() {
for triple := range g.IterTriples() {
ch <- &crdf.Statement{
Subject: term2C(triple.Subject),
Predicate: term2C(triple.Predicate),
Object: term2C(triple.Object),
}
}
close(ch)
}()
return serializer.Serialize(ch, g.uri)
}