func ReadTriplesFromFile(c chan *graph.Triple, tripleFile string) {
f, err := os.Open(tripleFile)
if err != nil {
glog.Fatalln("Couldn't open file", tripleFile)
}
defer func() {
if err := f.Close(); err != nil {
glog.Fatalln(err)
}
}()
nquads.ReadNQuadsFromReader(c, f)
}
func (api *Api) ServeV1WriteNQuad(w http.ResponseWriter, r *http.Request, params httprouter.Params) int {
if api.config.ReadOnly {
return FormatJson400(w, "Database is read-only.")
}
formFile, _, err := r.FormFile("NQuadFile")
if err != nil {
glog.Errorln(err)
return FormatJsonError(w, 500, "Couldn't read file: "+err.Error())
}
defer formFile.Close()
blockSize, blockErr := strconv.ParseInt(r.URL.Query().Get("block_size"), 10, 64)
if blockErr != nil {
blockSize = int64(api.config.LoadSize)
}
tChan := make(chan *graph.Triple)
go nquads.ReadNQuadsFromReader(tChan, formFile)
tripleblock := make([]*graph.Triple, blockSize)
nTriples := 0
i := int64(0)
for t := range tChan {
tripleblock[i] = t
i++
nTriples++
if i == blockSize {
api.ts.AddTripleSet(tripleblock)
i = 0
}
}
api.ts.AddTripleSet(tripleblock[0:i])
fmt.Fprintf(w, "{\"result\": \"Successfully wrote %d triples.\"}", nTriples)
return 200
}