Exemplo n.º 1
0
func (api *API) ServeV1WriteNQuad(w http.ResponseWriter, r *http.Request, params httprouter.Params) int {
	if api.config.ReadOnly {
		return jsonResponse(w, 400, "Database is read-only.")
	}

	formFile, _, err := r.FormFile("NQuadFile")
	if err != nil {
		glog.Errorln(err)
		return jsonResponse(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)
	}

	quadReader, err := internal.Decompressor(formFile)
	// TODO(kortschak) Make this configurable from the web UI.
	dec := cquads.NewDecoder(quadReader)

	h, err := api.GetHandleForRequest(r)
	if err != nil {
		return jsonResponse(w, 400, err)
	}

	n, err := quad.CopyBatch(h, dec, int(blockSize))
	if err != nil {
		return jsonResponse(w, 400, err)
	}
	fmt.Fprintf(w, "{\"result\": \"Successfully wrote %d quads.\"}", n)

	return 200
}
Exemplo n.º 2
0
Arquivo: write.go Projeto: e4x/cayley
func (api *API) ServeV1WriteNQuad(w http.ResponseWriter, r *http.Request, params httprouter.Params) int {
	if api.config.ReadOnly {
		return jsonResponse(w, 400, "Database is read-only.")
	}

	formFile, _, err := r.FormFile("NQuadFile")
	if err != nil {
		glog.Errorln(err)
		return jsonResponse(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)
	}

	quadReader, err := internal.Decompressor(formFile)
	// TODO(kortschak) Make this configurable from the web UI.
	dec := cquads.NewDecoder(quadReader)

	h, err := api.GetHandleForRequest(r)
	if err != nil {
		return jsonResponse(w, 400, err)
	}

	var (
		n     int
		block = make([]quad.Quad, 0, blockSize)
	)
	for {
		t, err := dec.Unmarshal()
		if err != nil {
			if err == io.EOF {
				break
			}
			glog.Fatalln("what can do this here?", err) // FIXME(kortschak)
		}
		block = append(block, t)
		n++
		if len(block) == cap(block) {
			h.QuadWriter.AddQuadSet(block)
			block = block[:0]
		}
	}
	h.QuadWriter.AddQuadSet(block)

	fmt.Fprintf(w, "{\"result\": \"Successfully wrote %d quads.\"}", n)

	return 200
}