// ServeTile returns a tile with appropriate Content-Type set.
func (d *Data) ServeTile(uuid dvid.UUID, ctx storage.Context, w http.ResponseWriter,
r *http.Request, parts []string) error {
if d.Levels == nil || len(d.Levels) == 0 {
return ErrNoMetadataSet
}
tileReq, err := d.parseTileReq(r, parts)
queryValues := r.URL.Query()
noblanksStr := dvid.InstanceName(queryValues.Get("noblanks"))
var noblanks bool
if noblanksStr == "true" {
noblanks = true
}
var formatStr string
if len(parts) >= 8 {
formatStr = parts[7]
}
data, err := d.getTileData(ctx, tileReq)
if err != nil {
server.BadRequest(w, r, err)
return err
}
if data == nil {
if noblanks {
http.NotFound(w, r)
return nil
}
img, err := d.getBlankTileImage(uuid, tileReq)
if err != nil {
return err
}
return dvid.WriteImageHttp(w, img, formatStr)
}
switch d.Encoding {
case LZ4:
var img dvid.Image
if err := img.Deserialize(data); err != nil {
return err
}
data, err = img.GetPNG()
w.Header().Set("Content-type", "image/png")
case PNG:
w.Header().Set("Content-type", "image/png")
case JPG:
w.Header().Set("Content-type", "image/jpeg")
}
if err != nil {
server.BadRequest(w, r, err)
return err
}
if _, err = w.Write(data); err != nil {
return err
}
return nil
}
// ServeHTTP handles all incoming HTTP requests for this data.
func (d *Data) ServeHTTP(uuid dvid.UUID, ctx *datastore.VersionedCtx, w http.ResponseWriter, r *http.Request) {
timedLog := dvid.NewTimeLog()
action := strings.ToLower(r.Method)
switch action {
case "get":
// Acceptable
default:
server.BadRequest(w, r, "googlevoxels can only handle GET HTTP verbs at this time")
return
}
// Break URL request into arguments
url := r.URL.Path[len(server.WebAPIPath):]
parts := strings.Split(url, "/")
if len(parts[len(parts)-1]) == 0 {
parts = parts[:len(parts)-1]
}
if len(parts) < 4 {
server.BadRequest(w, r, "incomplete API request")
return
}
switch parts[3] {
case "help":
w.Header().Set("Content-Type", "text/plain")
fmt.Fprintln(w, d.Help())
case "info":
jsonBytes, err := d.MarshalJSON()
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, string(jsonBytes))
case "tile":
if err := d.ServeTile(w, r, parts); err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: tile (%s)", r.Method, r.URL)
case "raw":
if err := d.ServeImage(w, r, parts); err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: image (%s)", r.Method, r.URL)
default:
server.BadRequest(w, r, "Illegal request for googlevoxels data. See 'help' for REST API")
}
}
// ServeHTTP handles all incoming HTTP requests for this data.
func (d *Data) ServeHTTP(uuid dvid.UUID, ctx *datastore.VersionedCtx, w http.ResponseWriter, r *http.Request) {
timedLog := dvid.NewTimeLog()
// Get the action (GET, POST)
action := strings.ToLower(r.Method)
switch action {
case "get":
case "post":
default:
server.BadRequest(w, r, "Can only handle GET or POST HTTP verbs")
return
}
// Break URL request into arguments
url := r.URL.Path[len(server.WebAPIPath):]
parts := strings.Split(url, "/")
if len(parts[len(parts)-1]) == 0 {
parts = parts[:len(parts)-1]
}
if len(parts) < 4 {
server.BadRequest(w, r, "Incomplete API request")
return
}
// Process help and info.
switch parts[3] {
case "help":
w.Header().Set("Content-Type", "text/plain")
fmt.Fprintln(w, d.Help())
return
case "info":
jsonBytes, err := d.MarshalJSON()
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, string(jsonBytes))
return
default:
}
// Get the data name and parse out the channel number or see if composite is required.
var channelNum int32
channumStr := strings.TrimPrefix(parts[2], string(d.DataName()))
if len(channumStr) == 0 {
channelNum = 0
} else {
n, err := strconv.ParseInt(channumStr, 10, 32)
if err != nil {
server.BadRequest(w, r, "Error parsing channel number from data name '%s': %v", parts[2], err)
return
}
if int(n) > d.NumChannels {
minChannelName := fmt.Sprintf("%s1", d.DataName())
maxChannelName := fmt.Sprintf("%s%d", d.DataName(), d.NumChannels)
server.BadRequest(w, r, "Data only has %d channels. Use names '%s' -> '%s'", d.NumChannels,
minChannelName, maxChannelName)
return
}
channelNum = int32(n)
}
// Get the data shape.
shapeStr := dvid.DataShapeString(parts[3])
dataShape, err := shapeStr.DataShape()
if err != nil {
server.BadRequest(w, r, "Bad data shape given '%s'", shapeStr)
return
}
switch dataShape.ShapeDimensions() {
case 2:
sizeStr, offsetStr := parts[4], parts[5]
slice, err := dvid.NewSliceFromStrings(shapeStr, offsetStr, sizeStr, "_")
if err != nil {
server.BadRequest(w, r, err)
return
}
if action == "post" {
server.BadRequest(w, r, "DVID does not yet support POST of slices into multichannel data")
return
} else {
if d.NumChannels == 0 || d.Data.Values == nil {
server.BadRequest(w, r, "Cannot retrieve absent data '%d'. Please load data.", d.DataName())
return
}
values := d.Data.Values
if len(values) <= int(channelNum) {
server.BadRequest(w, r, "Must choose channel from 0 to %d", len(values))
return
}
stride := slice.Size().Value(0) * values.BytesPerElement()
dataValues := dvid.DataValues{values[channelNum]}
data := make([]uint8, int(slice.NumVoxels()))
v := imageblk.NewVoxels(slice, dataValues, data, stride)
channel := &Channel{
Voxels: v,
channelNum: channelNum,
}
img, err := d.GetImage(ctx.VersionID(), channel.Voxels, nil)
var formatStr string
if len(parts) >= 7 {
formatStr = parts[6]
}
//dvid.ElapsedTime(dvid.Normal, startTime, "%s %s upto image formatting", op, slice)
err = dvid.WriteImageHttp(w, img.Get(), formatStr)
if err != nil {
server.BadRequest(w, r, err)
return
}
}
case 3:
sizeStr, offsetStr := parts[4], parts[5]
_, err := dvid.NewSubvolumeFromStrings(offsetStr, sizeStr, "_")
if err != nil {
server.BadRequest(w, r, err)
return
}
if action == "get" {
server.BadRequest(w, r, "DVID does not yet support GET of volume data")
return
} else {
server.BadRequest(w, r, "DVID does not yet support POST of volume data")
return
}
default:
server.BadRequest(w, r, "DVID does not yet support nD volumes")
return
}
timedLog.Infof("HTTP %s: %s", r.Method, dataShape)
}
// handleTileReq returns a tile with appropriate Content-Type set.
func (d *Data) handleTileReq(w http.ResponseWriter, r *http.Request, parts []string) error {
if len(parts) < 7 {
return fmt.Errorf("'tile' request must be following by plane, scale level, and tile coordinate")
}
planeStr, scalingStr, coordStr := parts[4], parts[5], parts[6]
queryStrings := r.URL.Query()
var noblanks bool
noblanksStr := dvid.InstanceName(queryStrings.Get("noblanks"))
if noblanksStr == "true" {
noblanks = true
}
var tilesize int32 = DefaultTileSize
tileSizeStr := queryStrings.Get("tilesize")
if tileSizeStr != "" {
tilesizeInt, err := strconv.Atoi(tileSizeStr)
if err != nil {
return err
}
tilesize = int32(tilesizeInt)
}
size := dvid.Point2d{tilesize, tilesize}
var formatStr string
if len(parts) >= 8 {
formatStr = parts[7]
}
if formatStr == "" {
formatStr = DefaultTileFormat
}
// Parse the tile specification
plane := dvid.DataShapeString(planeStr)
shape, err := plane.DataShape()
if err != nil {
err = fmt.Errorf("Illegal tile plane: %s (%v)", planeStr, err)
server.BadRequest(w, r, err)
return err
}
scale, err := strconv.ParseUint(scalingStr, 10, 8)
if err != nil {
err = fmt.Errorf("Illegal tile scale: %s (%v)", scalingStr, err)
server.BadRequest(w, r, err)
return err
}
tileCoord, err := dvid.StringToPoint(coordStr, "_")
if err != nil {
err = fmt.Errorf("Illegal tile coordinate: %s (%v)", coordStr, err)
server.BadRequest(w, r, err)
return err
}
// Convert tile coordinate to offset.
var ox, oy, oz int32
switch {
case shape.Equals(dvid.XY):
ox = tileCoord.Value(0) * tilesize
oy = tileCoord.Value(1) * tilesize
oz = tileCoord.Value(2)
case shape.Equals(dvid.XZ):
ox = tileCoord.Value(0) * tilesize
oy = tileCoord.Value(1)
oz = tileCoord.Value(2) * tilesize
case shape.Equals(dvid.YZ):
ox = tileCoord.Value(0)
oy = tileCoord.Value(1) * tilesize
oz = tileCoord.Value(2) * tilesize
default:
return fmt.Errorf("Unknown tile orientation: %s", shape)
}
// Determine how this request sits in the available scaled volumes.
geom, err := d.GetGoogleSubvolGeom(Scaling(scale), shape, dvid.Point3d{ox, oy, oz}, size)
if err != nil {
server.BadRequest(w, r, err)
return err
}
// Send the tile.
return d.serveTile(w, r, geom, formatStr, noblanks)
}
// ServeTile returns a tile with appropriate Content-Type set.
func (d *Data) ServeTile(uuid dvid.UUID, ctx storage.Context, w http.ResponseWriter,
r *http.Request, parts []string) error {
if len(parts) < 7 {
return fmt.Errorf("'tile' request must be following by plane, scale level, and tile coordinate")
}
planeStr, scalingStr, coordStr := parts[4], parts[5], parts[6]
queryValues := r.URL.Query()
noblanksStr := dvid.InstanceName(queryValues.Get("noblanks"))
var noblanks bool
if noblanksStr == "true" {
noblanks = true
}
var formatStr string
if len(parts) >= 8 {
formatStr = parts[7]
}
// Construct the index for this tile
plane := dvid.DataShapeString(planeStr)
shape, err := plane.DataShape()
if err != nil {
err = fmt.Errorf("Illegal tile plane: %s (%v)", planeStr, err)
server.BadRequest(w, r, err)
return err
}
scaling, err := strconv.ParseUint(scalingStr, 10, 8)
if err != nil {
err = fmt.Errorf("Illegal tile scale: %s (%v)", scalingStr, err)
server.BadRequest(w, r, err)
return err
}
tileCoord, err := dvid.StringToPoint(coordStr, "_")
if err != nil {
err = fmt.Errorf("Illegal tile coordinate: %s (%v)", coordStr, err)
server.BadRequest(w, r, err)
return err
}
if tileCoord.NumDims() != 3 {
err = fmt.Errorf("Expected 3d tile coordinate, got %s", coordStr)
server.BadRequest(w, r, err)
return err
}
indexZYX := dvid.IndexZYX{tileCoord.Value(0), tileCoord.Value(1), tileCoord.Value(2)}
data, err := d.getTileData(ctx, shape, Scaling(scaling), indexZYX)
if err != nil {
server.BadRequest(w, r, err)
return err
}
if data == nil {
if noblanks {
http.NotFound(w, r)
return nil
}
img, err := d.getBlankTileImage(uuid, shape, Scaling(scaling))
if err != nil {
return err
}
return dvid.WriteImageHttp(w, img, formatStr)
}
switch d.Encoding {
case LZ4:
var img dvid.Image
if err := img.Deserialize(data); err != nil {
return err
}
data, err = img.GetPNG()
w.Header().Set("Content-type", "image/png")
case PNG:
w.Header().Set("Content-type", "image/png")
case JPG:
w.Header().Set("Content-type", "image/jpeg")
}
if err != nil {
server.BadRequest(w, r, err)
return err
}
if _, err = w.Write(data); err != nil {
return err
}
return nil
}
// ServeHTTP handles all incoming HTTP requests for this data.
func (d *Data) ServeHTTP(uuid dvid.UUID, ctx *datastore.VersionedCtx, w http.ResponseWriter, r *http.Request) {
timedLog := dvid.NewTimeLog()
action := strings.ToLower(r.Method)
switch action {
case "get", "post":
// Acceptable
default:
server.BadRequest(w, r, "Can only handle GET or POST HTTP verbs")
return
}
// Break URL request into arguments
url := r.URL.Path[len(server.WebAPIPath):]
parts := strings.Split(url, "/")
if len(parts[len(parts)-1]) == 0 {
parts = parts[:len(parts)-1]
}
if len(parts) < 4 {
server.BadRequest(w, r, "incomplete API request")
return
}
switch parts[3] {
case "help":
w.Header().Set("Content-Type", "text/plain")
fmt.Fprintln(w, d.Help())
case "info":
jsonBytes, err := d.MarshalJSON()
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, string(jsonBytes))
case "tile":
if action == "post" {
server.BadRequest(w, r, "DVID does not yet support POST of imagetile")
return
}
if err := d.ServeTile(uuid, ctx, w, r, parts); err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: tile (%s)", r.Method, r.URL)
case "raw", "isotropic":
if action == "post" {
server.BadRequest(w, r, "imagetile '%s' can only PUT tiles not images", d.DataName())
return
}
if len(parts) < 7 {
server.BadRequest(w, r, "%q must be followed by shape/size/offset", parts[3])
return
}
shapeStr, sizeStr, offsetStr := parts[4], parts[5], parts[6]
planeStr := dvid.DataShapeString(shapeStr)
plane, err := planeStr.DataShape()
if err != nil {
server.BadRequest(w, r, err)
return
}
if plane.ShapeDimensions() != 2 {
server.BadRequest(w, r, "Quadtrees can only return 2d images not %s", plane)
return
}
slice, err := dvid.NewSliceFromStrings(planeStr, offsetStr, sizeStr, "_")
if err != nil {
server.BadRequest(w, r, err)
return
}
source, err := datastore.GetDataByUUID(uuid, d.Source)
if err != nil {
server.BadRequest(w, r, err)
return
}
src, ok := source.(*imageblk.Data)
if !ok {
server.BadRequest(w, r, "Cannot construct imagetile for non-voxels data: %s", d.Source)
return
}
img, err := d.GetImage(ctx, src, slice, parts[3] == "isotropic")
if err != nil {
server.BadRequest(w, r, err)
return
}
var formatStr string
if len(parts) >= 8 {
formatStr = parts[7]
}
err = dvid.WriteImageHttp(w, img.Get(), formatStr)
if err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: tile-accelerated %s %s (%s)", r.Method, planeStr, parts[3], r.URL)
default:
server.BadRequest(w, r, "Illegal request for imagetile data. See 'help' for REST API")
}
}
// ServeHTTP handles all incoming HTTP requests for this data.
func (d *Data) ServeHTTP(uuid dvid.UUID, ctx *datastore.VersionedCtx, w http.ResponseWriter, r *http.Request) {
timedLog := dvid.NewTimeLog()
action := strings.ToLower(r.Method)
switch action {
case "get", "post":
// Acceptable
default:
server.BadRequest(w, r, "Can only handle GET or POST HTTP verbs")
return
}
// Break URL request into arguments
url := r.URL.Path[len(server.WebAPIPath):]
parts := strings.Split(url, "/")
if len(parts[len(parts)-1]) == 0 {
parts = parts[:len(parts)-1]
}
if len(parts) < 4 {
server.BadRequest(w, r, "incomplete API request")
return
}
switch parts[3] {
case "help":
w.Header().Set("Content-Type", "text/plain")
fmt.Fprintln(w, d.Help())
case "info":
jsonBytes, err := d.MarshalJSON()
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, string(jsonBytes))
case "metadata":
switch action {
case "post":
jsonBytes, err := ioutil.ReadAll(r.Body)
if err != nil {
server.BadRequest(w, r, err)
return
}
if err := d.SetMetadata(uuid, jsonBytes); err != nil {
server.BadRequest(w, r, err)
return
}
case "get":
if d.Levels == nil || len(d.Levels) == 0 {
server.BadRequest(w, r, "tile metadata for imagetile %q was not set\n", d.DataName())
return
}
metadata := struct {
MinTileCoord dvid.Point3d
MaxTileCoord dvid.Point3d
Levels TileSpec
}{
d.MinTileCoord,
d.MaxTileCoord,
d.Levels,
}
jsonBytes, err := json.Marshal(metadata)
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, string(jsonBytes))
}
timedLog.Infof("HTTP %s: metadata (%s)", r.Method, r.URL)
case "tile":
switch action {
case "post":
err := d.PostTile(ctx, w, r, parts)
if err != nil {
server.BadRequest(w, r, "Error in posting tile with URL %q: %v\n", url, err)
return
}
case "get":
if err := d.ServeTile(ctx, w, r, parts); err != nil {
server.BadRequest(w, r, err)
return
}
}
timedLog.Infof("HTTP %s: tile (%s)", r.Method, r.URL)
case "tilekey":
switch action {
case "get":
var err error
var hexkey string
if hexkey, err = d.GetTileKey(ctx, w, r, parts); err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, `{"key": "%s"}`, hexkey)
timedLog.Infof("HTTP %s: tilekey (%s) returns %s", r.Method, r.URL, hexkey)
default:
server.BadRequest(w, r, fmt.Errorf("Cannot use HTTP %s for tilekey endpoint", action))
return
}
case "raw", "isotropic":
if action == "post" {
server.BadRequest(w, r, "imagetile '%s' can only PUT tiles not images", d.DataName())
return
}
if len(parts) < 7 {
server.BadRequest(w, r, "%q must be followed by shape/size/offset", parts[3])
return
}
shapeStr, sizeStr, offsetStr := parts[4], parts[5], parts[6]
planeStr := dvid.DataShapeString(shapeStr)
plane, err := planeStr.DataShape()
if err != nil {
server.BadRequest(w, r, err)
return
}
if plane.ShapeDimensions() != 2 {
server.BadRequest(w, r, "Quadtrees can only return 2d images not %s", plane)
return
}
slice, err := dvid.NewSliceFromStrings(planeStr, offsetStr, sizeStr, "_")
if err != nil {
server.BadRequest(w, r, err)
return
}
source, err := datastore.GetDataByUUIDName(uuid, d.Source)
if err != nil {
server.BadRequest(w, r, err)
return
}
src, ok := source.(*imageblk.Data)
if !ok {
server.BadRequest(w, r, "Cannot construct imagetile for non-voxels data: %s", d.Source)
return
}
img, err := d.GetImage(ctx, src, slice, parts[3] == "isotropic")
if err != nil {
server.BadRequest(w, r, err)
return
}
var formatStr string
if len(parts) >= 8 {
formatStr = parts[7]
}
err = dvid.WriteImageHttp(w, img.Get(), formatStr)
if err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: tile-accelerated %s %s (%s)", r.Method, planeStr, parts[3], r.URL)
default:
server.BadAPIRequest(w, r, d)
}
}
// ServeHTTP handles all incoming HTTP requests for this data.
func (d *Data) ServeHTTP(uuid dvid.UUID, ctx *datastore.VersionedCtx, w http.ResponseWriter, r *http.Request) {
// TODO -- Refactor this method to break it up and make it simpler. Use the web routing for the endpoints.
timedLog := dvid.NewTimeLog()
// Get the action (GET, POST)
action := strings.ToLower(r.Method)
switch action {
case "get":
case "post":
case "delete":
default:
server.BadRequest(w, r, "labelblk only handles GET, POST, and DELETE HTTP verbs")
return
}
// Break URL request into arguments
url := r.URL.Path[len(server.WebAPIPath):]
parts := strings.Split(url, "/")
if len(parts[len(parts)-1]) == 0 {
parts = parts[:len(parts)-1]
}
// Get query strings and possible roi
var roiptr *imageblk.ROI
queryValues := r.URL.Query()
roiname := dvid.InstanceName(queryValues.Get("roi"))
if len(roiname) != 0 {
roiptr = new(imageblk.ROI)
}
// Handle POST on data -> setting of configuration
if len(parts) == 3 && action == "post" {
config, err := server.DecodeJSON(r)
if err != nil {
server.BadRequest(w, r, err)
return
}
if err := d.ModifyConfig(config); err != nil {
server.BadRequest(w, r, err)
return
}
if err := datastore.SaveDataByUUID(uuid, d); err != nil {
server.BadRequest(w, r, err)
return
}
fmt.Fprintf(w, "Changed '%s' based on received configuration:\n%s\n", d.DataName(), config)
return
}
if len(parts) < 4 {
server.BadRequest(w, r, "Incomplete API request")
return
}
// Process help and info.
switch parts[3] {
case "help":
w.Header().Set("Content-Type", "text/plain")
fmt.Fprintln(w, dtype.Help())
case "metadata":
jsonStr, err := d.NdDataMetadata()
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/vnd.dvid-nd-data+json")
fmt.Fprintln(w, jsonStr)
case "info":
jsonBytes, err := d.MarshalJSON()
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, string(jsonBytes))
case "label":
// GET <api URL>/node/<UUID>/<data name>/label/<coord>
if len(parts) < 5 {
server.BadRequest(w, r, "DVID requires coord to follow 'label' command")
return
}
coord, err := dvid.StringToPoint(parts[4], "_")
if err != nil {
server.BadRequest(w, r, err)
return
}
label, err := d.GetLabelAtPoint(ctx.VersionID(), coord)
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-type", "application/json")
jsonStr := fmt.Sprintf(`{"Label": %d}`, label)
fmt.Fprintf(w, jsonStr)
timedLog.Infof("HTTP %s: label at %s (%s)", r.Method, coord, r.URL)
case "labels":
// POST <api URL>/node/<UUID>/<data name>/labels
if action != "post" {
server.BadRequest(w, r, "Batch labels query must be a POST request")
return
}
data, err := ioutil.ReadAll(r.Body)
if err != nil {
server.BadRequest(w, r, "Bad POSTed data for batch reverse query. Should be JSON.")
return
}
var coords []dvid.Point3d
if err := json.Unmarshal(data, &coords); err != nil {
server.BadRequest(w, r, fmt.Sprintf("Bad labels request JSON: %v", err))
return
}
w.Header().Set("Content-type", "application/json")
fmt.Fprintf(w, "[")
sep := false
for _, coord := range coords {
label, err := d.GetLabelAtPoint(ctx.VersionID(), coord)
if err != nil {
server.BadRequest(w, r, err)
return
}
if sep {
fmt.Fprintf(w, ",")
}
fmt.Fprintf(w, "%d", label)
sep = true
}
fmt.Fprintf(w, "]")
timedLog.Infof("HTTP batch label-at-point query (%d coordinates)", len(coords))
case "blocks":
// DELETE <api URL>/node/<UUID>/<data name>/blocks/<block coord>/<spanX>
if len(parts) < 6 {
server.BadRequest(w, r, "DVID requires starting block coord and # of blocks along X to follow 'blocks' endpoint.")
return
}
blockCoord, err := dvid.StringToChunkPoint3d(parts[4], "_")
if err != nil {
server.BadRequest(w, r, err)
return
}
span, err := strconv.Atoi(parts[5])
if err != nil {
server.BadRequest(w, r, err)
return
}
if action != "delete" {
server.BadRequest(w, r, "DVID currently accepts only DELETE on the 'blocks' endpoint")
return
}
if err := d.DeleteBlocks(ctx, blockCoord, span); err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: delete %d blocks from %s (%s)", r.Method, span, blockCoord, r.URL)
case "pseudocolor":
if len(parts) < 7 {
server.BadRequest(w, r, "'%s' must be followed by shape/size/offset", parts[3])
return
}
shapeStr, sizeStr, offsetStr := parts[4], parts[5], parts[6]
planeStr := dvid.DataShapeString(shapeStr)
plane, err := planeStr.DataShape()
if err != nil {
server.BadRequest(w, r, err)
return
}
switch plane.ShapeDimensions() {
case 2:
slice, err := dvid.NewSliceFromStrings(planeStr, offsetStr, sizeStr, "_")
if err != nil {
server.BadRequest(w, r, err)
return
}
if action != "get" {
server.BadRequest(w, r, "DVID does not permit 2d mutations, only 3d block-aligned stores")
return
}
lbl, err := d.NewLabels(slice, nil)
if err != nil {
server.BadRequest(w, r, err)
return
}
if roiptr != nil {
roiptr.Iter, err = roi.NewIterator(roiname, ctx.VersionID(), lbl)
if err != nil {
server.BadRequest(w, r, err)
return
}
}
img, err := d.GetImage(ctx.VersionID(), lbl, roiptr)
if err != nil {
server.BadRequest(w, r, err)
return
}
// Convert to pseudocolor
pseudoColor, err := colorImage(img)
if err != nil {
server.BadRequest(w, r, err)
return
}
//dvid.ElapsedTime(dvid.Normal, startTime, "%s %s upto image formatting", op, slice)
var formatStr string
if len(parts) >= 8 {
formatStr = parts[7]
}
err = dvid.WriteImageHttp(w, pseudoColor, formatStr)
if err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: %s (%s)", r.Method, plane, r.URL)
default:
server.BadRequest(w, r, "DVID currently supports only 2d pseudocolor image requests")
return
}
case "raw", "isotropic":
if len(parts) < 7 {
server.BadRequest(w, r, "'%s' must be followed by shape/size/offset", parts[3])
return
}
var isotropic bool = (parts[3] == "isotropic")
shapeStr, sizeStr, offsetStr := parts[4], parts[5], parts[6]
planeStr := dvid.DataShapeString(shapeStr)
plane, err := planeStr.DataShape()
if err != nil {
server.BadRequest(w, r, err)
return
}
switch plane.ShapeDimensions() {
case 2:
slice, err := dvid.NewSliceFromStrings(planeStr, offsetStr, sizeStr, "_")
if err != nil {
server.BadRequest(w, r, err)
return
}
if action != "get" {
server.BadRequest(w, r, "DVID does not permit 2d mutations, only 3d block-aligned stores")
return
}
rawSlice, err := dvid.Isotropy2D(d.Properties.VoxelSize, slice, isotropic)
lbl, err := d.NewLabels(rawSlice, nil)
if err != nil {
server.BadRequest(w, r, err)
return
}
if roiptr != nil {
roiptr.Iter, err = roi.NewIterator(roiname, ctx.VersionID(), lbl)
if err != nil {
server.BadRequest(w, r, err)
return
}
}
img, err := d.GetImage(ctx.VersionID(), lbl, roiptr)
if err != nil {
server.BadRequest(w, r, err)
return
}
if isotropic {
dstW := int(slice.Size().Value(0))
dstH := int(slice.Size().Value(1))
img, err = img.ScaleImage(dstW, dstH)
if err != nil {
server.BadRequest(w, r, err)
return
}
}
var formatStr string
if len(parts) >= 8 {
formatStr = parts[7]
}
//dvid.ElapsedTime(dvid.Normal, startTime, "%s %s upto image formatting", op, slice)
err = dvid.WriteImageHttp(w, img.Get(), formatStr)
if err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: %s (%s)", r.Method, plane, r.URL)
case 3:
queryStrings := r.URL.Query()
throttle := queryStrings.Get("throttle")
if throttle == "true" || throttle == "on" {
select {
case <-server.Throttle:
// Proceed with operation, returning throttle token to server at end.
defer func() {
server.Throttle <- 1
}()
default:
throttleMsg := fmt.Sprintf("Server already running maximum of %d throttled operations",
server.MaxThrottledOps)
http.Error(w, throttleMsg, http.StatusServiceUnavailable)
return
}
}
compression := queryValues.Get("compression")
subvol, err := dvid.NewSubvolumeFromStrings(offsetStr, sizeStr, "_")
if err != nil {
server.BadRequest(w, r, err)
return
}
if action == "get" {
lbl, err := d.NewLabels(subvol, nil)
if err != nil {
server.BadRequest(w, r, err)
return
}
if roiptr != nil {
roiptr.Iter, err = roi.NewIterator(roiname, ctx.VersionID(), lbl)
if err != nil {
server.BadRequest(w, r, err)
return
}
}
data, err := d.GetVolume(ctx.VersionID(), lbl, roiptr)
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-type", "application/octet-stream")
switch compression {
case "":
_, err = w.Write(data)
if err != nil {
server.BadRequest(w, r, err)
return
}
case "lz4":
compressed := make([]byte, lz4.CompressBound(data))
var n, outSize int
if outSize, err = lz4.Compress(data, compressed); err != nil {
server.BadRequest(w, r, err)
return
}
compressed = compressed[:outSize]
if n, err = w.Write(compressed); err != nil {
server.BadRequest(w, r, err)
return
}
if n != outSize {
errmsg := fmt.Sprintf("Only able to write %d of %d lz4 compressed bytes\n", n, outSize)
dvid.Errorf(errmsg)
server.BadRequest(w, r, errmsg)
return
}
case "gzip":
gw := gzip.NewWriter(w)
if _, err = gw.Write(data); err != nil {
server.BadRequest(w, r, err)
return
}
if err = gw.Close(); err != nil {
server.BadRequest(w, r, err)
return
}
default:
server.BadRequest(w, r, "unknown compression type %q", compression)
return
}
} else {
if isotropic {
server.BadRequest(w, r, "can only POST 'raw' not 'isotropic' images")
return
}
// Make sure vox is block-aligned
if !dvid.BlockAligned(subvol, d.BlockSize()) {
server.BadRequest(w, r, "cannot store labels in non-block aligned geometry %s -> %s", subvol.StartPoint(), subvol.EndPoint())
return
}
var data []byte
switch compression {
case "":
tlog := dvid.NewTimeLog()
data, err = ioutil.ReadAll(r.Body)
if err != nil {
server.BadRequest(w, r, err)
return
}
tlog.Debugf("read 3d uncompressed POST")
case "lz4":
tlog := dvid.NewTimeLog()
data, err = ioutil.ReadAll(r.Body)
if err != nil {
server.BadRequest(w, r, err)
return
}
if len(data) == 0 {
server.BadRequest(w, r, "received 0 LZ4 compressed bytes")
return
}
tlog.Debugf("read 3d lz4 POST")
tlog = dvid.NewTimeLog()
uncompressed := make([]byte, subvol.NumVoxels()*8)
err = lz4.Uncompress(data, uncompressed)
if err != nil {
server.BadRequest(w, r, err)
return
}
data = uncompressed
tlog.Debugf("uncompressed 3d lz4 POST")
case "gzip":
tlog := dvid.NewTimeLog()
gr, err := gzip.NewReader(r.Body)
if err != nil {
server.BadRequest(w, r, err)
return
}
data, err = ioutil.ReadAll(gr)
if err != nil {
server.BadRequest(w, r, err)
return
}
if err = gr.Close(); err != nil {
server.BadRequest(w, r, err)
return
}
tlog.Debugf("read and uncompress 3d gzip POST")
default:
server.BadRequest(w, r, "unknown compression type %q", compression)
return
}
lbl, err := d.NewLabels(subvol, data)
if err != nil {
server.BadRequest(w, r, err)
return
}
if roiptr != nil {
roiptr.Iter, err = roi.NewIterator(roiname, ctx.VersionID(), lbl)
if err != nil {
server.BadRequest(w, r, err)
return
}
}
if err = d.PutVoxels(ctx.VersionID(), lbl.Voxels, roiptr); err != nil {
server.BadRequest(w, r, err)
return
}
}
timedLog.Infof("HTTP %s: %s (%s)", r.Method, subvol, r.URL)
default:
server.BadRequest(w, r, "DVID currently supports shapes of only 2 and 3 dimensions")
return
}
default:
server.BadRequest(w, r, "Unrecognized API call %q for labelblk data %q. See API help.",
parts[3], d.DataName())
}
}
// ServeHTTP handles all incoming HTTP requests for this data.
func (d *Data) ServeHTTP(uuid dvid.UUID, ctx *datastore.VersionedCtx, w http.ResponseWriter, r *http.Request) {
timedLog := dvid.NewTimeLog()
// Check the action
action := strings.ToLower(r.Method)
if action != "get" {
server.BadRequest(w, r, "labelsz data can only accept GET HTTP requests")
return
}
// Break URL request into arguments
url := r.URL.Path[len(server.WebAPIPath):]
parts := strings.Split(url, "/")
if len(parts[len(parts)-1]) == 0 {
parts = parts[:len(parts)-1]
}
if len(parts) < 4 {
server.BadRequest(w, r, "Incomplete API request")
return
}
// Process help and info.
switch parts[3] {
case "help":
w.Header().Set("Content-Type", "text/plain")
fmt.Fprintln(w, dtype.Help())
case "info":
jsonBytes, err := d.MarshalJSON()
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, string(jsonBytes))
case "size":
// GET <api URL>/node/<UUID>/<data name>/size/<label>
if len(parts) < 5 {
server.BadRequest(w, r, "ERROR: DVID requires label ID to follow 'size' command")
return
}
label, err := strconv.ParseUint(parts[4], 10, 64)
if err != nil {
server.BadRequest(w, r, err)
return
}
size, err := d.GetSize(ctx.VersionID(), label)
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-type", "application/json")
fmt.Fprintf(w, "{%q: %d, %q: %d}", "Label", label, "Voxels", size)
timedLog.Infof("HTTP %s: get label %d size", r.Method, label)
case "sizerange":
// GET <api URL>/node/<UUID>/<data name>/sizerange/<min size>/<optional max size>
if len(parts) < 5 {
server.BadRequest(w, r, "ERROR: DVID requires at least the minimum size to follow 'sizerange' command")
return
}
minSize, err := strconv.ParseUint(parts[4], 10, 64)
if err != nil {
server.BadRequest(w, r, err)
return
}
var maxSize uint64
if len(parts) >= 6 {
maxSize, err = strconv.ParseUint(parts[5], 10, 64)
if err != nil {
server.BadRequest(w, r, err)
return
}
}
jsonStr, err := d.GetSizeRange(ctx.VersionID(), minSize, maxSize)
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-type", "application/json")
fmt.Fprintf(w, jsonStr)
timedLog.Infof("HTTP %s: get labels with volume > %d and < %d (%s)", r.Method, minSize, maxSize, r.URL)
default:
server.BadRequest(w, r, "Unrecognized API call '%s' for labelsz data '%s'. See API help.",
parts[3], d.DataName())
}
}
// ServeHTTP handles all incoming HTTP requests for this data.
func (d *Data) ServeHTTP(uuid dvid.UUID, ctx *datastore.VersionedCtx, w http.ResponseWriter, r *http.Request) {
timedLog := dvid.NewTimeLog()
// Break URL request into arguments
url := r.URL.Path[len(server.WebAPIPath):]
parts := strings.Split(url, "/")
if len(parts[len(parts)-1]) == 0 {
parts = parts[:len(parts)-1]
}
if len(parts) < 4 {
server.BadRequest(w, r, "incomplete API specification")
return
}
// Process help and info.
switch parts[3] {
case "help":
w.Header().Set("Content-Type", "text/plain")
fmt.Fprintln(w, d.Help())
return
case "info":
jsonBytes, err := d.MarshalJSON()
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, string(jsonBytes))
return
default:
}
// Get the key and process request
var comment string
command := parts[3]
method := strings.ToLower(r.Method)
switch command {
case "roi":
switch method {
case "get":
if !d.Ready {
w.WriteHeader(http.StatusPartialContent)
}
jsonBytes, err := Get(ctx)
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, string(jsonBytes))
comment = fmt.Sprintf("HTTP GET ROI %q: %d bytes\n", d.DataName(), len(jsonBytes))
case "post":
data, err := ioutil.ReadAll(r.Body)
if err != nil {
server.BadRequest(w, r, err)
return
}
err = d.PutJSON(ctx.VersionID(), data)
if err != nil {
server.BadRequest(w, r, err)
return
}
comment = fmt.Sprintf("HTTP POST ROI %q: %d bytes\n", d.DataName(), len(data))
case "delete":
if err := d.Delete(ctx); err != nil {
server.BadRequest(w, r, err)
return
}
comment = fmt.Sprintf("HTTP DELETE ROI %q\n", d.DataName())
}
case "mask":
if method != "get" {
server.BadRequest(w, r, "ROI mask only supports GET")
return
}
if len(parts) < 7 {
server.BadRequest(w, r, "%q must be followed by shape/size/offset", command)
return
}
shapeStr, sizeStr, offsetStr := parts[4], parts[5], parts[6]
planeStr := dvid.DataShapeString(shapeStr)
plane, err := planeStr.DataShape()
if err != nil {
server.BadRequest(w, r, err)
return
}
switch plane.ShapeDimensions() {
case 3:
subvol, err := dvid.NewSubvolumeFromStrings(offsetStr, sizeStr, "_")
if err != nil {
server.BadRequest(w, r, err)
return
}
data, err := d.GetMask(ctx, subvol)
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-type", "application/octet-stream")
_, err = w.Write(data)
if err != nil {
server.BadRequest(w, r, err)
return
}
default:
server.BadRequest(w, r, "Currently only 3d masks ('0_1_2' shape) is supported")
return
}
case "ptquery":
switch method {
case "get":
server.BadRequest(w, r, "ptquery requires POST with list of points")
return
case "post":
data, err := ioutil.ReadAll(r.Body)
if err != nil {
server.BadRequest(w, r, err)
return
}
jsonBytes, err := d.PointQuery(ctx, data)
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, string(jsonBytes))
comment = fmt.Sprintf("HTTP POST ptquery '%s'\n", d.DataName())
}
case "partition":
if method != "get" {
server.BadRequest(w, r, "partition only supports GET request")
return
}
queryValues := r.URL.Query()
batchsizeStr := queryValues.Get("batchsize")
batchsize, err := strconv.Atoi(batchsizeStr)
if err != nil {
server.BadRequest(w, r, fmt.Sprintf("Error reading batchsize query string: %v", err))
return
}
var jsonBytes []byte
optimizedStr := queryValues.Get("optimized")
dvid.Infof("queryvalues = %v\n", queryValues)
if optimizedStr == "true" || optimizedStr == "on" {
dvid.Infof("Perform optimized partitioning into subvolumes using batchsize %d\n", batchsize)
jsonBytes, err = d.Partition(ctx, int32(batchsize))
} else {
dvid.Infof("Performing simple partitioning into subvolumes using batchsize %d\n", batchsize)
jsonBytes, err = d.SimplePartition(ctx, int32(batchsize))
}
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, string(jsonBytes))
comment = fmt.Sprintf("HTTP partition '%s' with batch size %d\n",
d.DataName(), batchsize)
default:
w.Header().Set("Content-Type", "text/plain")
server.BadRequest(w, r, "Can only handle GET or POST HTTP verbs")
return
}
timedLog.Infof(comment)
}
// ServeHTTP handles all incoming HTTP requests for this data.
func (d *Data) ServeHTTP(uuid dvid.UUID, ctx *datastore.VersionedCtx, w http.ResponseWriter, r *http.Request) {
timedLog := dvid.NewTimeLog()
// Get the action (GET, POST)
action := strings.ToLower(r.Method)
switch action {
case "get":
case "post":
default:
server.BadRequest(w, r, "Can only handle GET or POST HTTP verbs")
return
}
// Break URL request into arguments
url := r.URL.Path[len(server.WebAPIPath):]
parts := strings.Split(url, "/")
if len(parts[len(parts)-1]) == 0 {
parts = parts[:len(parts)-1]
}
// Get query strings and possible roi
var roiptr *ROI
queryValues := r.URL.Query()
roiname := dvid.InstanceName(queryValues.Get("roi"))
if len(roiname) != 0 {
roiptr = new(ROI)
attenuationStr := queryValues.Get("attenuation")
if len(attenuationStr) != 0 {
attenuation, err := strconv.Atoi(attenuationStr)
if err != nil {
server.BadRequest(w, r, err)
return
}
if attenuation < 1 || attenuation > 7 {
server.BadRequest(w, r, "Attenuation should be from 1 to 7 (divides by 2^n)")
return
}
roiptr.attenuation = uint8(attenuation)
}
}
// Handle POST on data -> setting of configuration
if len(parts) == 3 && action == "put" {
fmt.Printf("Setting configuration of data '%s'\n", d.DataName())
config, err := server.DecodeJSON(r)
if err != nil {
server.BadRequest(w, r, err)
return
}
if err := d.ModifyConfig(config); err != nil {
server.BadRequest(w, r, err)
return
}
if err := datastore.SaveDataByUUID(uuid, d); err != nil {
server.BadRequest(w, r, err)
return
}
fmt.Fprintf(w, "Changed '%s' based on received configuration:\n%s\n", d.DataName(), config)
return
}
if len(parts) < 4 {
server.BadRequest(w, r, "Incomplete API request")
return
}
// Process help and info.
switch parts[3] {
case "help":
w.Header().Set("Content-Type", "text/plain")
fmt.Fprintln(w, d.Help())
return
case "metadata":
jsonStr, err := d.NdDataMetadata()
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/vnd.dvid-nd-data+json")
fmt.Fprintln(w, jsonStr)
return
case "info":
jsonBytes, err := d.MarshalJSON()
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, string(jsonBytes))
return
case "rawkey":
// GET <api URL>/node/<UUID>/<data name>/rawkey?x=<block x>&y=<block y>&z=<block z>
if len(parts) != 4 {
server.BadRequest(w, r, "rawkey endpoint should be followed by query strings (x, y, and z) giving block coord")
return
}
case "blocks":
// GET <api URL>/node/<UUID>/<data name>/blocks/<block coord>/<spanX>
// POST <api URL>/node/<UUID>/<data name>/blocks/<block coord>/<spanX>
if len(parts) < 6 {
server.BadRequest(w, r, "%q must be followed by block-coord/span-x", parts[3])
return
}
blockCoord, err := dvid.StringToChunkPoint3d(parts[4], "_")
if err != nil {
server.BadRequest(w, r, err)
return
}
span, err := strconv.Atoi(parts[5])
if err != nil {
server.BadRequest(w, r, err)
return
}
if action == "get" {
data, err := d.GetBlocks(ctx.VersionID(), blockCoord, int32(span))
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-type", "application/octet-stream")
_, err = w.Write(data)
if err != nil {
server.BadRequest(w, r, err)
return
}
} else {
if err := d.PutBlocks(ctx.VersionID(), blockCoord, span, r.Body); err != nil {
server.BadRequest(w, r, err)
return
}
}
timedLog.Infof("HTTP %s: Blocks (%s)", r.Method, r.URL)
case "arb":
// GET <api URL>/node/<UUID>/<data name>/arb/<top left>/<top right>/<bottom left>/<res>[/<format>]
if len(parts) < 8 {
server.BadRequest(w, r, "%q must be followed by top-left/top-right/bottom-left/res", parts[3])
return
}
queryStrings := r.URL.Query()
throttle := queryStrings.Get("throttle")
if throttle == "true" || throttle == "on" {
select {
case <-server.Throttle:
// Proceed with operation, returning throttle token to server at end.
defer func() {
server.Throttle <- 1
}()
default:
throttleMsg := fmt.Sprintf("Server already running maximum of %d throttled operations",
server.MaxThrottledOps)
http.Error(w, throttleMsg, http.StatusServiceUnavailable)
return
}
}
img, err := d.GetArbitraryImage(ctx, parts[4], parts[5], parts[6], parts[7])
if err != nil {
server.BadRequest(w, r, err)
return
}
var formatStr string
if len(parts) >= 9 {
formatStr = parts[8]
}
err = dvid.WriteImageHttp(w, img.Get(), formatStr)
if err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: Arbitrary image (%s)", r.Method, r.URL)
case "raw", "isotropic":
// GET <api URL>/node/<UUID>/<data name>/isotropic/<dims>/<size>/<offset>[/<format>]
if len(parts) < 7 {
server.BadRequest(w, r, "%q must be followed by shape/size/offset", parts[3])
return
}
var isotropic bool = (parts[3] == "isotropic")
shapeStr, sizeStr, offsetStr := parts[4], parts[5], parts[6]
planeStr := dvid.DataShapeString(shapeStr)
plane, err := planeStr.DataShape()
if err != nil {
server.BadRequest(w, r, err)
return
}
switch plane.ShapeDimensions() {
case 2:
slice, err := dvid.NewSliceFromStrings(planeStr, offsetStr, sizeStr, "_")
if err != nil {
server.BadRequest(w, r, err)
return
}
if action != "get" {
server.BadRequest(w, r, "DVID does not permit 2d mutations, only 3d block-aligned stores")
return
}
rawSlice, err := dvid.Isotropy2D(d.Properties.VoxelSize, slice, isotropic)
if err != nil {
server.BadRequest(w, r, err)
return
}
vox, err := d.NewVoxels(rawSlice, nil)
if err != nil {
server.BadRequest(w, r, err)
return
}
if roiptr != nil {
roiptr.Iter, err = roi.NewIterator(roiname, ctx.VersionID(), vox)
if err != nil {
server.BadRequest(w, r, err)
return
}
}
img, err := d.GetImage(ctx.VersionID(), vox, roiptr)
if err != nil {
server.BadRequest(w, r, err)
return
}
if isotropic {
dstW := int(slice.Size().Value(0))
dstH := int(slice.Size().Value(1))
img, err = img.ScaleImage(dstW, dstH)
if err != nil {
server.BadRequest(w, r, err)
return
}
}
var formatStr string
if len(parts) >= 8 {
formatStr = parts[7]
}
err = dvid.WriteImageHttp(w, img.Get(), formatStr)
if err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: %s (%s)", r.Method, plane, r.URL)
case 3:
queryStrings := r.URL.Query()
if queryStrings.Get("throttle") == "on" {
select {
case <-server.Throttle:
// Proceed with operation, returning throttle token to server at end.
defer func() {
server.Throttle <- 1
}()
default:
throttleMsg := fmt.Sprintf("Server already running maximum of %d throttled operations",
server.MaxThrottledOps)
http.Error(w, throttleMsg, http.StatusServiceUnavailable)
return
}
}
subvol, err := dvid.NewSubvolumeFromStrings(offsetStr, sizeStr, "_")
if err != nil {
server.BadRequest(w, r, err)
return
}
if action == "get" {
vox, err := d.NewVoxels(subvol, nil)
if err != nil {
server.BadRequest(w, r, err)
return
}
if roiptr != nil {
roiptr.Iter, err = roi.NewIterator(roiname, ctx.VersionID(), vox)
if err != nil {
server.BadRequest(w, r, err)
return
}
}
data, err := d.GetVolume(ctx.VersionID(), vox, roiptr)
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-type", "application/octet-stream")
_, err = w.Write(data)
if err != nil {
server.BadRequest(w, r, err)
return
}
} else {
if isotropic {
err := fmt.Errorf("can only PUT 'raw' not 'isotropic' images")
server.BadRequest(w, r, err)
return
}
// Make sure vox is block-aligned
if !dvid.BlockAligned(subvol, d.BlockSize()) {
server.BadRequest(w, r, "cannot store voxels in non-block aligned geometry %s -> %s", subvol.StartPoint(), subvol.EndPoint())
return
}
data, err := ioutil.ReadAll(r.Body)
if err != nil {
server.BadRequest(w, r, err)
return
}
vox, err := d.NewVoxels(subvol, data)
if err != nil {
server.BadRequest(w, r, err)
return
}
if roiptr != nil {
roiptr.Iter, err = roi.NewIterator(roiname, ctx.VersionID(), vox)
if err != nil {
server.BadRequest(w, r, err)
return
}
}
if err = d.PutVoxels(ctx.VersionID(), vox, roiptr); err != nil {
server.BadRequest(w, r, err)
return
}
}
timedLog.Infof("HTTP %s: %s (%s)", r.Method, subvol, r.URL)
default:
server.BadRequest(w, r, "DVID currently supports shapes of only 2 and 3 dimensions")
}
default:
server.BadRequest(w, r, "Unrecognized API call for voxels %q. See API help.", d.DataName())
}
}
// ServeHTTP handles all incoming HTTP requests for this data.
func (d *Data) ServeHTTP(uuid dvid.UUID, ctx *datastore.VersionedCtx, w http.ResponseWriter, r *http.Request) {
timedLog := dvid.NewTimeLog()
// Break URL request into arguments
url := r.URL.Path[len(server.WebAPIPath):]
parts := strings.Split(url, "/")
if len(parts[len(parts)-1]) == 0 {
parts = parts[:len(parts)-1]
}
if len(parts) < 4 {
server.BadRequest(w, r, "incomplete API specification")
return
}
var comment string
action := strings.ToLower(r.Method)
switch parts[3] {
case "help":
w.Header().Set("Content-Type", "text/plain")
fmt.Fprintln(w, d.Help())
return
case "info":
jsonStr, err := d.JSONString()
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, jsonStr)
return
case "keys":
keyList, err := d.GetKeys(ctx)
if err != nil {
server.BadRequest(w, r, err)
return
}
jsonBytes, err := json.Marshal(keyList)
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, string(jsonBytes))
comment = "HTTP GET keys"
case "keyrange":
if len(parts) < 6 {
server.BadRequest(w, r, "expect beginning and end keys to follow 'keyrange' endpoint")
return
}
// Return JSON list of keys
keyBeg := parts[4]
keyEnd := parts[5]
keyList, err := d.GetKeysInRange(ctx, keyBeg, keyEnd)
if err != nil {
server.BadRequest(w, r, err)
return
}
jsonBytes, err := json.Marshal(keyList)
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, string(jsonBytes))
comment = fmt.Sprintf("HTTP GET keyrange [%q, %q]", keyBeg, keyEnd)
case "key":
if len(parts) < 5 {
server.BadRequest(w, r, "expect key string to follow 'key' endpoint")
return
}
keyStr := parts[4]
switch action {
case "get":
// Return value of single key
value, found, err := d.GetData(ctx, keyStr)
if err != nil {
server.BadRequest(w, r, err)
return
}
if !found {
http.Error(w, fmt.Sprintf("Key %q not found", keyStr), http.StatusNotFound)
return
}
if value != nil || len(value) > 0 {
_, err = w.Write(value)
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/octet-stream")
}
comment = fmt.Sprintf("HTTP GET key %q of keyvalue %q: %d bytes (%s)\n", keyStr, d.DataName(), len(value), url)
case "delete":
if err := d.DeleteData(ctx, keyStr); err != nil {
server.BadRequest(w, r, err)
return
}
comment = fmt.Sprintf("HTTP DELETE data with key %q of keyvalue %q (%s)\n", keyStr, d.DataName(), url)
case "post":
data, err := ioutil.ReadAll(r.Body)
if err != nil {
server.BadRequest(w, r, err)
return
}
err = d.PutData(ctx, keyStr, data)
if err != nil {
server.BadRequest(w, r, err)
return
}
comment = fmt.Sprintf("HTTP POST keyvalue '%s': %d bytes (%s)\n", d.DataName(), len(data), url)
default:
server.BadRequest(w, r, "key endpoint does not support %q HTTP verb", action)
return
}
default:
server.BadRequest(w, r, "unknown action %q requested", parts[3])
return
}
timedLog.Infof(comment)
}
// ServeHTTP handles all incoming HTTP requests for this data.
func (d *Data) ServeHTTP(uuid dvid.UUID, ctx *datastore.VersionedCtx, w http.ResponseWriter, r *http.Request) {
// --- Don't time labelgraph ops because they are very small and frequent.
// --- TODO -- Implement monitoring system that aggregates logged ops instead of
// ----------- printing out each one.
// timedLog := dvid.NewTimeLog()
db, err := storage.GraphStore()
if err != nil {
server.BadRequest(w, r, err)
return
}
// make sure transaction log is created
d.initializeLog()
// Break URL request into arguments
url := r.URL.Path[len(server.WebAPIPath):]
parts := strings.Split(url, "/")
if len(parts) < 4 {
server.BadRequest(w, r, "No resource specified in URI")
return
}
method := strings.ToLower(r.Method)
if method == "put" {
server.BadRequest(w, r, "PUT requests not supported")
return
}
// Process help and info.
switch parts[3] {
case "help":
w.Header().Set("Content-Type", "text/plain")
fmt.Fprintln(w, d.Help())
return
case "info":
jsonBytes, err := d.MarshalJSON()
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, string(jsonBytes))
case "subgraph":
// disable json schema validation (will speedup POST command)
queryValues := r.URL.Query()
disableSchemaT := dvid.InstanceName(queryValues.Get("unsafe"))
disableSchema := false
if len(disableSchemaT) != 0 && disableSchemaT == "true" {
disableSchema = true
}
labelgraph, err := d.ExtractGraph(r, disableSchema)
if err != nil {
server.BadRequest(w, r, err)
return
}
err = d.handleSubgraphBulk(ctx, db, w, labelgraph, method)
if err != nil {
server.BadRequest(w, r, err)
return
}
case "neighbors":
if method != "get" {
server.BadRequest(w, r, "Only supports GETs")
return
}
err := d.handleNeighbors(ctx, db, w, parts[4:])
if err != nil {
server.BadRequest(w, r, err)
return
}
case "merge":
if method != "post" {
server.BadRequest(w, r, "Only supports POSTs")
return
}
labelgraph, err := d.ExtractGraph(r, false)
if err != nil {
server.BadRequest(w, r, err)
return
}
err = d.handleMerge(ctx, db, w, labelgraph)
if err != nil {
server.BadRequest(w, r, err)
return
}
case "weight":
if method != "post" {
server.BadRequest(w, r, "Only supports POSTs")
return
}
labelgraph, err := d.ExtractGraph(r, false)
if err != nil {
server.BadRequest(w, r, err)
return
}
err = d.handleWeightUpdate(ctx, db, w, labelgraph)
if err != nil {
server.BadRequest(w, r, err)
return
}
case "propertytransaction":
err := d.handlePropertyTransaction(ctx, db, w, r, parts[4:], method)
if err != nil {
server.BadRequest(w, r, err)
return
}
case "property":
err := d.handleProperty(ctx, db, w, r, parts[4:], method)
if err != nil {
server.BadRequest(w, r, err)
return
}
case "undomerge":
// not supported until transaction history is supported
server.BadRequest(w, r, "undomerge not yet implemented")
return
default:
server.BadRequest(w, r, "%s not found", parts[3])
return
}
//timedLog.Infof("Successful labelgraph op %s on %q", parts[3], d.DataName())
}
// ServeHTTP handles all incoming HTTP requests for this data.
func (d *Data) ServeHTTP(uuid dvid.UUID, ctx *datastore.VersionedCtx, w http.ResponseWriter, r *http.Request) {
timedLog := dvid.NewTimeLog()
// versionID := ctx.VersionID()
// Get the action (GET, POST)
action := strings.ToLower(r.Method)
// Break URL request into arguments
url := r.URL.Path[len(server.WebAPIPath):]
parts := strings.Split(url, "/")
if len(parts[len(parts)-1]) == 0 {
parts = parts[:len(parts)-1]
}
// Handle POST on data -> setting of configuration
if len(parts) == 3 && action == "put" {
config, err := server.DecodeJSON(r)
if err != nil {
server.BadRequest(w, r, err)
return
}
if err := d.ModifyConfig(config); err != nil {
server.BadRequest(w, r, err)
return
}
if err := datastore.SaveDataByUUID(uuid, d); err != nil {
server.BadRequest(w, r, err)
return
}
fmt.Fprintf(w, "Changed '%s' based on received configuration:\n%s\n", d.DataName(), config)
return
}
if len(parts) < 4 {
server.BadRequest(w, r, "Incomplete API request")
return
}
// Process help and info.
switch parts[3] {
case "help":
w.Header().Set("Content-Type", "text/plain")
fmt.Fprintln(w, dtype.Help())
case "info":
jsonBytes, err := d.MarshalJSON()
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, string(jsonBytes))
case "sync":
if action != "post" {
server.BadRequest(w, r, "Only POST allowed to sync endpoint")
return
}
replace := r.URL.Query().Get("replace") == "true"
if err := datastore.SetSyncByJSON(d, uuid, replace, r.Body); err != nil {
server.BadRequest(w, r, err)
return
}
case "label":
if action != "get" {
server.BadRequest(w, r, "Only GET action is available on 'label' endpoint.")
return
}
if len(parts) < 5 {
server.BadRequest(w, r, "Must include label after 'label' endpoint.")
return
}
label, err := strconv.ParseUint(parts[4], 10, 64)
if err != nil {
server.BadRequest(w, r, err)
return
}
if label == 0 {
server.BadRequest(w, r, "Label 0 is protected background value and cannot be used for query.")
return
}
queryStrings := r.URL.Query()
jsonBytes, err := d.GetLabelJSON(ctx, label, queryStrings.Get("relationships") == "true")
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-type", "application/json")
if _, err := w.Write(jsonBytes); err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: get synaptic elements for label %d (%s)", r.Method, label, r.URL)
case "tag":
if action != "get" {
server.BadRequest(w, r, "Only GET action is available on 'tag' endpoint.")
return
}
if len(parts) < 5 {
server.BadRequest(w, r, "Must include tag string after 'tag' endpoint.")
return
}
tag := Tag(parts[4])
queryStrings := r.URL.Query()
jsonBytes, err := d.GetTagJSON(ctx, tag, queryStrings.Get("relationships") == "true")
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-type", "application/json")
if _, err := w.Write(jsonBytes); err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: get synaptic elements for tag %s (%s)", r.Method, tag, r.URL)
case "elements":
switch action {
case "get":
// GET <api URL>/node/<UUID>/<data name>/elements/<size>/<offset>
if len(parts) < 6 {
server.BadRequest(w, r, "Expect size and offset to follow 'elements' in GET request")
return
}
sizeStr, offsetStr := parts[4], parts[5]
ext3d, err := dvid.NewExtents3dFromStrings(offsetStr, sizeStr, "_")
if err != nil {
server.BadRequest(w, r, err)
return
}
elements, err := d.GetRegionSynapses(ctx, ext3d)
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-type", "application/json")
jsonBytes, err := json.Marshal(elements)
if err != nil {
server.BadRequest(w, r, err)
return
}
if _, err := w.Write(jsonBytes); err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: synapse elements in subvolume (size %s, offset %s) (%s)", r.Method, sizeStr, offsetStr, r.URL)
case "post":
if err := d.StoreSynapses(ctx, r.Body); err != nil {
server.BadRequest(w, r, err)
return
}
default:
server.BadRequest(w, r, "Only GET or POST action is available on 'elements' endpoint.")
return
}
case "element":
// DELETE <api URL>/node/<UUID>/<data name>/element/<coord>
if action != "delete" {
server.BadRequest(w, r, "Only DELETE action is available on 'element' endpoint.")
return
}
if len(parts) < 5 {
server.BadRequest(w, r, "Must include coordinate after DELETE on 'element' endpoint.")
return
}
pt, err := dvid.StringToPoint3d(parts[4], "_")
if err != nil {
server.BadRequest(w, r, err)
return
}
if err := d.DeleteElement(ctx, pt); err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: delete synaptic element at %s (%s)", r.Method, pt, r.URL)
case "move":
// POST <api URL>/node/<UUID>/<data name>/move/<from_coord>/<to_coord>
if action != "post" {
server.BadRequest(w, r, "Only POST action is available on 'move' endpoint.")
return
}
if len(parts) < 6 {
server.BadRequest(w, r, "Must include 'from' and 'to' coordinate after 'move' endpoint.")
return
}
fromPt, err := dvid.StringToPoint3d(parts[4], "_")
if err != nil {
server.BadRequest(w, r, err)
return
}
toPt, err := dvid.StringToPoint3d(parts[5], "_")
if err != nil {
server.BadRequest(w, r, err)
return
}
if err := d.MoveElement(ctx, fromPt, toPt); err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: move synaptic element from %s to %s (%s)", r.Method, fromPt, toPt, r.URL)
default:
server.BadAPIRequest(w, r, d)
}
}
// ServeHTTP handles all incoming HTTP requests for this data.
func (d *Data) ServeHTTP(uuid dvid.UUID, ctx *datastore.VersionedCtx, w http.ResponseWriter, r *http.Request) {
timedLog := dvid.NewTimeLog()
// Get the action (GET, POST)
action := strings.ToLower(r.Method)
// Break URL request into arguments
url := r.URL.Path[len(server.WebAPIPath):]
parts := strings.Split(url, "/")
if len(parts[len(parts)-1]) == 0 {
parts = parts[:len(parts)-1]
}
// Handle POST on data -> setting of configuration
if len(parts) == 3 && action == "put" {
config, err := server.DecodeJSON(r)
if err != nil {
server.BadRequest(w, r, err)
return
}
if err := d.ModifyConfig(config); err != nil {
server.BadRequest(w, r, err)
return
}
if err := datastore.SaveDataByUUID(uuid, d); err != nil {
server.BadRequest(w, r, err)
return
}
fmt.Fprintf(w, "Changed '%s' based on received configuration:\n%s\n", d.DataName(), config)
return
}
if len(parts) < 4 {
server.BadRequest(w, r, "Incomplete API request")
return
}
// Process help and info.
switch parts[3] {
case "help":
w.Header().Set("Content-Type", "text/plain")
fmt.Fprintln(w, dtype.Help())
case "info":
jsonBytes, err := d.MarshalJSON()
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, string(jsonBytes))
case "sync":
if action != "post" {
server.BadRequest(w, r, "Only POST allowed to sync endpoint")
return
}
replace := r.URL.Query().Get("replace") == "true"
if err := datastore.SetSyncByJSON(d, uuid, replace, r.Body); err != nil {
server.BadRequest(w, r, err)
return
}
case "count":
if action != "get" {
server.BadRequest(w, r, "Only GET action is available on 'count' endpoint.")
return
}
if len(parts) < 6 {
server.BadRequest(w, r, "Must include label and element type after 'count' endpoint.")
return
}
label, err := strconv.ParseUint(parts[4], 10, 64)
if err != nil {
server.BadRequest(w, r, err)
return
}
i := StringToIndexType(parts[5])
if i == UnknownIndex {
server.BadRequest(w, r, fmt.Errorf("unknown index type specified (%q)", parts[5]))
return
}
count, err := d.GetCountElementType(ctx, label, i)
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-type", "application/json")
jsonStr := fmt.Sprintf(`{"Label":%d,%q:%d}`, label, i, count)
if _, err := io.WriteString(w, jsonStr); err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: get count for label %d, index type %s: %s", r.Method, label, i, r.URL)
case "top":
if action != "get" {
server.BadRequest(w, r, "Only GET action is available on 'top' endpoint.")
return
}
if len(parts) < 6 {
server.BadRequest(w, r, "Must include N and element type after 'top' endpoint.")
return
}
n, err := strconv.ParseUint(parts[4], 10, 32)
if err != nil {
server.BadRequest(w, r, err)
return
}
i := StringToIndexType(parts[5])
if i == UnknownIndex {
server.BadRequest(w, r, fmt.Errorf("unknown index type specified (%q)", parts[5]))
return
}
labelSizes, err := d.GetTopElementType(ctx, int(n), i)
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-type", "application/json")
jsonBytes, err := json.Marshal(labelSizes)
if err != nil {
server.BadRequest(w, r, err)
return
}
if _, err := w.Write(jsonBytes); err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: get top %d labels for index type %s: %s", r.Method, n, i, r.URL)
case "threshold":
if action != "get" {
server.BadRequest(w, r, "Only GET action is available on 'threshold' endpoint.")
return
}
if len(parts) < 6 {
server.BadRequest(w, r, "Must include threshold # and element type after 'threshold' endpoint.")
return
}
t, err := strconv.ParseUint(parts[4], 10, 32)
if err != nil {
server.BadRequest(w, r, err)
return
}
minSize := uint32(t)
i := StringToIndexType(parts[5])
if i == UnknownIndex {
server.BadRequest(w, r, fmt.Errorf("unknown index type specified (%q)", parts[5]))
return
}
queryStrings := r.URL.Query()
var num, offset int
offsetStr := queryStrings.Get("offset")
if offsetStr != "" {
offset, err = strconv.Atoi(offsetStr)
if err != nil {
server.BadRequest(w, r, fmt.Errorf("bad offset specified in query string (%q)", offsetStr))
return
}
}
numStr := queryStrings.Get("n")
if numStr != "" {
num, err = strconv.Atoi(numStr)
if err != nil {
server.BadRequest(w, r, fmt.Errorf("bad num specified in query string (%q)", numStr))
return
}
}
labels, err := d.GetLabelsByThreshold(ctx, i, minSize, offset, num)
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-type", "application/json")
jsonBytes, err := json.Marshal(labels)
if err != nil {
server.BadRequest(w, r, err)
return
}
if _, err := w.Write(jsonBytes); err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: get %d labels for index type %s with threshold %d: %s", r.Method, num, i, t, r.URL)
default:
server.BadAPIRequest(w, r, d)
}
}
// ServeHTTP handles all incoming HTTP requests for this data.
func (d *Data) ServeHTTP(uuid dvid.UUID, ctx *datastore.VersionedCtx, w http.ResponseWriter, r *http.Request) {
timedLog := dvid.NewTimeLog()
// Check the action
action := strings.ToLower(r.Method)
if action != "get" {
server.BadRequest(w, r, "labelsurf data can only accept GET HTTP requests")
return
}
// Break URL request into arguments
url := r.URL.Path[len(server.WebAPIPath):]
parts := strings.Split(url, "/")
if len(parts[len(parts)-1]) == 0 {
parts = parts[:len(parts)-1]
}
if len(parts) < 4 {
server.BadRequest(w, r, "Incomplete API request")
return
}
// Process help and info.
switch parts[3] {
case "help":
w.Header().Set("Content-Type", "text/plain")
fmt.Fprintln(w, dtype.Help())
case "info":
jsonBytes, err := d.MarshalJSON()
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, string(jsonBytes))
case "surface":
// GET <api URL>/node/<UUID>/<data name>/surface/<label>
if len(parts) < 5 {
server.BadRequest(w, r, "ERROR: DVID requires label ID to follow 'surface' command")
return
}
label, err := strconv.ParseUint(parts[4], 10, 64)
fmt.Printf("Getting surface for label %d\n", label)
if err != nil {
server.BadRequest(w, r, err)
return
}
gzipData, found, err := GetSurface(ctx, label)
if err != nil {
server.BadRequest(w, r, "Error on getting surface for label %d: %v", label, err)
return
}
if !found {
http.Error(w, fmt.Sprintf("Surface for label '%d' not found", label), http.StatusNotFound)
return
}
w.Header().Set("Content-type", "application/octet-stream")
if err := dvid.WriteGzip(gzipData, w, r); err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: surface on label %d (%s)", r.Method, label, r.URL)
case "surface-by-point":
// GET <api URL>/node/<UUID>/<data name>/surface-by-point/<coord>
if len(parts) < 5 {
server.BadRequest(w, r, "ERROR: DVID requires coord to follow 'surface-by-point' command")
return
}
coord, err := dvid.StringToPoint(parts[4], "_")
if err != nil {
server.BadRequest(w, r, err)
return
}
label, err := d.GetLabelAtPoint(ctx.VersionID(), coord)
if err != nil {
server.BadRequest(w, r, err)
return
}
gzipData, found, err := GetSurface(ctx, label)
if err != nil {
server.BadRequest(w, r, "Error on getting surface for label %d: %v", label, err)
return
}
if !found {
http.Error(w, fmt.Sprintf("Surface for label '%d' not found", label), http.StatusNotFound)
return
}
fmt.Printf("Found surface for label %d: %d bytes (gzip payload)\n", label, len(gzipData))
w.Header().Set("Content-type", "application/octet-stream")
if err := dvid.WriteGzip(gzipData, w, r); err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: surface-by-point at %s (%s)", r.Method, coord, r.URL)
default:
server.BadRequest(w, r, "Unrecognized API call '%s' for labelsurf data '%s'. See API help.",
parts[3], d.DataName())
}
}
// ServeHTTP handles all incoming HTTP requests for this data.
func (d *Data) ServeHTTP(uuid dvid.UUID, ctx *datastore.VersionedCtx, w http.ResponseWriter, r *http.Request) {
timedLog := dvid.NewTimeLog()
versionID := ctx.VersionID()
// Get the action (GET, POST)
action := strings.ToLower(r.Method)
// Break URL request into arguments
url := r.URL.Path[len(server.WebAPIPath):]
parts := strings.Split(url, "/")
if len(parts[len(parts)-1]) == 0 {
parts = parts[:len(parts)-1]
}
// Handle POST on data -> setting of configuration
if len(parts) == 3 && action == "put" {
config, err := server.DecodeJSON(r)
if err != nil {
server.BadRequest(w, r, err)
return
}
if err := d.ModifyConfig(config); err != nil {
server.BadRequest(w, r, err)
return
}
if err := datastore.SaveDataByUUID(uuid, d); err != nil {
server.BadRequest(w, r, err)
return
}
fmt.Fprintf(w, "Changed '%s' based on received configuration:\n%s\n", d.DataName(), config)
return
}
if len(parts) < 4 {
server.BadRequest(w, r, "Incomplete API request")
return
}
// Process help and info.
switch parts[3] {
case "help":
w.Header().Set("Content-Type", "text/plain")
fmt.Fprintln(w, dtype.Help())
case "info":
jsonBytes, err := d.MarshalJSON()
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, string(jsonBytes))
case "sparsevol":
// GET <api URL>/node/<UUID>/<data name>/sparsevol/<label>
// POST <api URL>/node/<UUID>/<data name>/sparsevol/<label>
if len(parts) < 5 {
server.BadRequest(w, r, "ERROR: DVID requires label ID to follow 'sparsevol' command")
return
}
label, err := strconv.ParseUint(parts[4], 10, 64)
if err != nil {
server.BadRequest(w, r, err)
return
}
switch action {
case "get":
queryValues := r.URL.Query()
var b Bounds
b.VoxelBounds, err = dvid.BoundsFromQueryString(r)
if err != nil {
server.BadRequest(w, r, "Error parsing bounds from query string: %v\n", err)
return
}
b.BlockBounds = b.VoxelBounds.Divide(d.BlockSize)
b.Exact = queryValues.Get("exact") == "true"
data, err := GetSparseVol(ctx, label, b)
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-type", "application/octet-stream")
_, err = w.Write(data)
if err != nil {
server.BadRequest(w, r, err)
return
}
case "post":
server.BadRequest(w, r, "POST of sparsevol not currently implemented\n")
return
// if err := d.PutSparseVol(versionID, label, r.Body); err != nil {
// server.BadRequest(w, r, err)
// return
// }
default:
server.BadRequest(w, r, "Unable to handle HTTP action %s on sparsevol endpoint", action)
return
}
timedLog.Infof("HTTP %s: sparsevol on label %d (%s)", r.Method, label, r.URL)
case "sparsevol-by-point":
// GET <api URL>/node/<UUID>/<data name>/sparsevol-by-point/<coord>
if len(parts) < 5 {
server.BadRequest(w, r, "ERROR: DVID requires coord to follow 'sparsevol-by-point' command")
return
}
coord, err := dvid.StringToPoint(parts[4], "_")
if err != nil {
server.BadRequest(w, r, err)
return
}
source, err := d.GetSyncedLabelblk(versionID)
if err != nil {
server.BadRequest(w, r, err)
return
}
label, err := source.GetLabelAtPoint(ctx.VersionID(), coord)
if err != nil {
server.BadRequest(w, r, err)
return
}
data, err := GetSparseVol(ctx, label, Bounds{})
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-type", "application/octet-stream")
_, err = w.Write(data)
if err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: sparsevol-by-point at %s (%s)", r.Method, coord, r.URL)
case "sparsevol-coarse":
// GET <api URL>/node/<UUID>/<data name>/sparsevol-coarse/<label>
if len(parts) < 5 {
server.BadRequest(w, r, "ERROR: DVID requires label ID to follow 'sparsevol-coarse' command")
return
}
label, err := strconv.ParseUint(parts[4], 10, 64)
if err != nil {
server.BadRequest(w, r, err)
return
}
data, err := GetSparseCoarseVol(ctx, label)
if err != nil {
server.BadRequest(w, r, err)
return
}
w.Header().Set("Content-type", "application/octet-stream")
_, err = w.Write(data)
if err != nil {
server.BadRequest(w, r, err)
return
}
timedLog.Infof("HTTP %s: sparsevol-coarse on label %d (%s)", r.Method, label, r.URL)
case "maxlabel":
// GET <api URL>/node/<UUID>/<data name>/maxlabel
w.Header().Set("Content-Type", "application/json")
switch action {
case "get":
maxlabel, ok := d.MaxLabel[versionID]
if !ok {
server.BadRequest(w, r, "No maximum label found for %s version %d\n", d.DataName(), versionID)
return
}
fmt.Fprintf(w, "{%q: %d}", "maxlabel", maxlabel)
default:
server.BadRequest(w, r, "Unknown action %q requested: %s\n", action, r.URL)
return
}
timedLog.Infof("HTTP maxlabel request (%s)", r.URL)
case "nextlabel":
// GET <api URL>/node/<UUID>/<data name>/nextlabel
// POST <api URL>/node/<UUID>/<data name>/nextlabel
w.Header().Set("Content-Type", "application/json")
switch action {
case "get":
fmt.Fprintf(w, "{%q: %d}", "nextlabel", d.MaxRepoLabel+1)
case "post":
server.BadRequest(w, r, "POST on maxlabel is not supported yet.\n")
return
default:
server.BadRequest(w, r, "Unknown action %q requested: %s\n", action, r.URL)
return
}
timedLog.Infof("HTTP maxlabel request (%s)", r.URL)
case "split":
// POST <api URL>/node/<UUID>/<data name>/split/<label>
if action != "post" {
server.BadRequest(w, r, "Split requests must be POST actions.")
return
}
if len(parts) < 5 {
server.BadRequest(w, r, "ERROR: DVID requires label ID to follow 'split' command")
return
}
fromLabel, err := strconv.ParseUint(parts[4], 10, 64)
if err != nil {
server.BadRequest(w, r, err)
return
}
toLabel, err := d.SplitLabels(ctx.VersionID(), fromLabel, r.Body)
if err != nil {
server.BadRequest(w, r, fmt.Sprintf("Error on split: %v", err))
return
}
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, "{%q: %d}", "label", toLabel)
timedLog.Infof("HTTP split request (%s)", r.URL)
case "merge":
// POST <api URL>/node/<UUID>/<data name>/merge
if action != "post" {
server.BadRequest(w, r, "Merge requests must be POST actions.")
return
}
data, err := ioutil.ReadAll(r.Body)
if err != nil {
server.BadRequest(w, r, "Bad POSTed data for merge. Should be JSON.")
return
}
var tuple labels.MergeTuple
if err := json.Unmarshal(data, &tuple); err != nil {
server.BadRequest(w, r, fmt.Sprintf("Bad merge op JSON: %v", err))
return
}
mergeOp, err := tuple.Op()
if err != nil {
server.BadRequest(w, r, err)
return
}
if err := d.MergeLabels(ctx.VersionID(), mergeOp); err != nil {
server.BadRequest(w, r, fmt.Sprintf("Error on merge: %v", err))
return
}
timedLog.Infof("HTTP merge request (%s)", r.URL)
default:
server.BadRequest(w, r, "Unrecognized API call %q for labelvol data %q. See API help.",
parts[3], d.DataName())
}
}