// Parse is used to parse RDF data from a reader, using the provided mime type
func (g *Graph) Parse(reader io.Reader, mime string) {
parserName := mimeParser[mime]
if len(parserName) == 0 {
parserName = "guess"
}
if parserName == "jsonld" {
buf := new(bytes.Buffer)
buf.ReadFrom(reader)
jsonData, err := jsonld.ReadJSON(buf.Bytes())
options := &jsonld.Options{}
options.Base = ""
options.ProduceGeneralizedRdf = false
dataSet, err := jsonld.ToRDF(jsonData, options)
if err != nil {
log.Println(err)
return
}
for t := range dataSet.IterTriples() {
g.AddTriple(jterm2term(t.Subject), jterm2term(t.Predicate), jterm2term(t.Object))
}
} else {
parser := crdf.NewParser(parserName)
parser.SetLogHandler(func(level int, message string) {
log.Println(message)
})
defer parser.Free()
out := parser.Parse(reader, g.uri)
for s := range out {
g.AddStatement(s)
}
}
}
// NewReaderFromMap returns quad reader for JSON-LD map object.
func NewReaderFromMap(o interface{}) *Reader {
data, err := gojsonld.ToRDF(o, gojsonld.NewOptions(""))
if err != nil {
return &Reader{err: err}
}
return &Reader{
graphs: data.Graphs,
}
}