// DoRPC acts as a switchboard for RPC commands.
func (d *Data) DoRPC(req datastore.Request, reply *datastore.Response) error {
switch req.TypeCommand() {
case "load":
if len(req.Command) < 5 {
return fmt.Errorf("Poorly formatted load command. See command-line help.")
}
// Parse the request
var uuidStr, dataName, cmdStr, offsetStr string
filenames, err := req.FilenameArgs(1, &uuidStr, &dataName, &cmdStr, &offsetStr)
if err != nil {
return err
}
if len(filenames) == 0 {
return fmt.Errorf("Need to include at least one file to add: %s", req)
}
// Get offset
offset, err := dvid.StringToPoint(offsetStr, ",")
if err != nil {
return fmt.Errorf("Illegal offset specification: %s: %v", offsetStr, err)
}
// Get list of files to add
var addedFiles string
if len(filenames) == 1 {
addedFiles = filenames[0]
} else {
addedFiles = fmt.Sprintf("filenames: %s [%d more]", filenames[0], len(filenames)-1)
}
dvid.Debugf(addedFiles + "\n")
uuid, versionID, err := datastore.MatchingUUID(uuidStr)
if err != nil {
return err
}
if err = datastore.AddToNodeLog(uuid, []string{req.Command.String()}); err != nil {
return err
}
if err = d.LoadImages(versionID, offset, filenames); err != nil {
return err
}
if err := datastore.SaveDataByUUID(uuid, d); err != nil {
return err
}
return nil
case "composite":
if len(req.Command) < 6 {
return fmt.Errorf("Poorly formatted composite command. See command-line help.")
}
return d.CreateComposite(req, reply)
default:
return fmt.Errorf("Unknown command. Data type '%s' [%s] does not support '%s' command.",
d.DataName(), d.TypeName(), req.TypeCommand())
}
return nil
}
// SetMetadata loads JSON data giving MinTileCoord, MaxTileCoord, and tile level specifications.
func (d *Data) SetMetadata(uuid dvid.UUID, jsonBytes []byte) error {
var config metadataJSON
if err := json.Unmarshal(jsonBytes, &config); err != nil {
return err
}
tileSpec, err := parseTileSpec(config.Levels)
if err != nil {
return err
}
d.Levels = tileSpec
d.MinTileCoord = config.MinTileCoord
d.MaxTileCoord = config.MaxTileCoord
if err := datastore.SaveDataByUUID(uuid, d); err != nil {
return err
}
return nil
}
func TestMultiscale2dRepoPersistence(t *testing.T) {
datastore.OpenTest()
defer datastore.CloseTest()
// Make source
uuid, _ := initTestRepo()
makeGrayscale(uuid, t, "grayscale")
// Make labels and set various properties
config := dvid.NewConfig()
config.Set("Placeholder", "true")
config.Set("Format", "jpg")
config.Set("Source", "grayscale")
dataservice, err := datastore.NewData(uuid, mstype, "myimagetile", config)
if err != nil {
t.Errorf("Unable to create imagetile instance: %v\n", err)
}
msdata, ok := dataservice.(*Data)
if !ok {
t.Fatalf("Can't cast imagetile data service into imagetile.Data\n")
}
oldData := *msdata
// Restart test datastore and see if datasets are still there.
if err = datastore.SaveDataByUUID(uuid, msdata); err != nil {
t.Fatalf("Unable to save repo during imagetile persistence test: %v\n", err)
}
datastore.CloseReopenTest()
dataservice2, err := datastore.GetDataByUUID(uuid, "myimagetile")
if err != nil {
t.Fatalf("Can't get keyvalue instance from reloaded test db: %v\n", err)
}
msdata2, ok := dataservice2.(*Data)
if !ok {
t.Errorf("Returned new data instance 2 is not imagetile.Data\n")
}
if !reflect.DeepEqual(oldData.Properties, msdata2.Properties) {
t.Errorf("Expected properties %v, got %v\n", oldData.Properties, msdata2.Properties)
}
}
func TestFloat32RepoPersistence(t *testing.T) {
datastore.OpenTest()
defer datastore.CloseTest()
uuid, _ := initTestRepo()
// Make grayscale and set various properties
config := dvid.NewConfig()
config.Set("BlockSize", "12,13,14")
config.Set("VoxelSize", "1.1,2.8,11")
config.Set("VoxelUnits", "microns,millimeters,nanometers")
dataservice, err := datastore.NewData(uuid, floatimgT, "floatimg", config)
if err != nil {
t.Errorf("Unable to create float32 instance: %s\n", err)
}
floatimg, ok := dataservice.(*Data)
if !ok {
t.Errorf("Can't cast float32 data service into Data\n")
}
oldData := *floatimg
// Restart test datastore and see if datasets are still there.
if err = datastore.SaveDataByUUID(uuid, floatimg); err != nil {
t.Fatalf("Unable to save repo during floatimg persistence test: %v\n", err)
}
datastore.CloseReopenTest()
dataservice2, err := datastore.GetDataByUUIDName(uuid, "floatimg")
if err != nil {
t.Fatalf("Can't get floatimg instance from reloaded test db: %v\n", err)
}
floatimg2, ok := dataservice2.(*Data)
if !ok {
t.Errorf("Returned new data instance 2 is not imageblk.Data\n")
}
if !oldData.Equals(floatimg2) {
t.Errorf("Expected %v, got %v\n", oldData, *floatimg2)
}
}
func TestLabelblkRepoPersistence(t *testing.T) {
tests.UseStore()
defer tests.CloseStore()
uuid, _ := initTestRepo()
// Make labels and set various properties
config := dvid.NewConfig()
config.Set("BlockSize", "12,13,14")
config.Set("VoxelSize", "1.1,2.8,11")
config.Set("VoxelUnits", "microns,millimeters,nanometers")
dataservice, err := datastore.NewData(uuid, labelsT, "mylabels", config)
if err != nil {
t.Errorf("Unable to create labels instance: %v\n", err)
}
labels, ok := dataservice.(*Data)
if !ok {
t.Errorf("Can't cast labels data service into Data\n")
}
oldData := *labels
// Restart test datastore and see if datasets are still there.
if err = datastore.SaveDataByUUID(uuid, labels); err != nil {
t.Fatalf("Unable to save repo during labels persistence test: %v\n", err)
}
tests.CloseReopenStore()
dataservice2, err := datastore.GetDataByUUID(uuid, "mylabels")
if err != nil {
t.Fatalf("Can't get labels instance from reloaded test db: %v\n", err)
}
labels2, ok := dataservice2.(*Data)
if !ok {
t.Errorf("Returned new data instance 2 is not imageblk.Data\n")
}
if !oldData.Equals(labels2) {
t.Errorf("Expected %v, got %v\n", oldData, *labels2)
}
}
func TestKeyvalueRepoPersistence(t *testing.T) {
tests.UseStore()
defer tests.CloseStore()
uuid, _ := initTestRepo()
// Make labels and set various properties
config := dvid.NewConfig()
dataservice, err := datastore.NewData(uuid, kvtype, "mykv", config)
if err != nil {
t.Errorf("Unable to create keyvalue instance: %v\n", err)
}
kvdata, ok := dataservice.(*Data)
if !ok {
t.Errorf("Can't cast keyvalue data service into keyvalue.Data\n")
}
oldData := *kvdata
// Restart test datastore and see if datasets are still there.
if err = datastore.SaveDataByUUID(uuid, kvdata); err != nil {
t.Fatalf("Unable to save repo during keyvalue persistence test: %v\n", err)
}
tests.CloseReopenStore()
dataservice2, err := datastore.GetDataByUUID(uuid, "mykv")
if err != nil {
t.Fatalf("Can't get keyvalue instance from reloaded test db: %v\n", err)
}
kvdata2, ok := dataservice2.(*Data)
if !ok {
t.Errorf("Returned new data instance 2 is not keyvalue.Data\n")
}
if !oldData.Equals(kvdata2) {
t.Errorf("Expected %v, got %v\n", oldData, *kvdata2)
}
}
func TestMultichan16RepoPersistence(t *testing.T) {
datastore.OpenTest()
defer datastore.CloseTest()
uuid, _ := initTestRepo()
// Make labels and set various properties
config := dvid.NewConfig()
dataservice, err := datastore.NewData(uuid, dtype, "mymultichan16", config)
if err != nil {
t.Errorf("Unable to create multichan16 instance: %v\n", err)
}
mcdata, ok := dataservice.(*Data)
if !ok {
t.Errorf("Can't cast multichan16 data service into multichan16.Data\n")
}
oldData := *mcdata
// Restart test datastore and see if datasets are still there.
if err = datastore.SaveDataByUUID(uuid, mcdata); err != nil {
t.Fatalf("Unable to save repo during multichan16 persistence test: %v\n", err)
}
datastore.CloseReopenTest()
dataservice2, err := datastore.GetDataByUUIDName(uuid, "mymultichan16")
if err != nil {
t.Fatalf("Can't get multichan16 instance from reloaded test db: %v\n", err)
}
mcdata2, ok := dataservice2.(*Data)
if !ok {
t.Errorf("Returned new data instance 2 is not multichan16.Data\n")
}
if !oldData.Equals(mcdata2) {
t.Errorf("Expected %v, got %v\n", oldData, *mcdata2)
}
}
// 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)
}
}
// LoadLocal adds image data to a version node. See HelpMessage for example of
// command-line use of "load local".
func (d *Data) LoadLocal(request datastore.Request, reply *datastore.Response) error {
timedLog := dvid.NewTimeLog()
// Parse the request
var uuidStr, dataName, cmdStr, sourceStr, filename string
_ = request.CommandArgs(1, &uuidStr, &dataName, &cmdStr, &sourceStr, &filename)
// Get the uuid from a uniquely identifiable string
uuid, versionID, err := datastore.MatchingUUID(uuidStr)
if err != nil {
return fmt.Errorf("Could not find node with UUID %s: %v", uuidStr, err)
}
// Load the V3D Raw file.
ext := filepath.Ext(filename)
switch ext {
case ".raw", ".v3draw":
default:
return fmt.Errorf("Unknown extension '%s' when expected V3D Raw file", ext)
}
file, err := os.Open(filename)
if err != nil {
return err
}
unmarshaler := V3DRawMarshaler{}
channels, err := unmarshaler.UnmarshalV3DRaw(file)
if err != nil {
return err
}
// Store the metadata
d.NumChannels = len(channels)
d.Properties.Values = make(dvid.DataValues, d.NumChannels)
if d.NumChannels > 0 {
reply.Text = fmt.Sprintf("Loaded %s into data '%s': found %d channels\n",
d.DataName(), filename, d.NumChannels)
reply.Text += fmt.Sprintf(" %s", channels[0])
} else {
reply.Text = fmt.Sprintf("Found no channels in file %s\n", filename)
return nil
}
for i, channel := range channels {
d.Properties.Values[i] = channel.Voxels.Values()[0]
}
// Get repo and save it.
if err := datastore.SaveDataByUUID(uuid, d); err != nil {
return err
}
// PUT each channel of the file into the datastore using a separate data name.
for _, channel := range channels {
dvid.Infof("Processing channel %d... \n", channel.channelNum)
err = d.PutVoxels(versionID, channel.Voxels, nil)
if err != nil {
return err
}
}
// Create a RGB composite from the first 3 channels. This is considered to be channel 0
// or can be accessed with the base data name.
dvid.Infof("Creating composite image from channels...\n")
err = d.storeComposite(versionID, channels)
if err != nil {
return err
}
timedLog.Infof("RPC load local '%s' completed", filename)
return nil
}
func (d *Data) ConstructTiles(uuidStr string, tileSpec TileSpec, request datastore.Request) error {
config := request.Settings()
uuid, versionID, err := datastore.MatchingUUID(uuidStr)
if err != nil {
return err
}
if err = datastore.AddToNodeLog(uuid, []string{request.Command.String()}); err != nil {
return err
}
source, err := datastore.GetDataByUUID(uuid, d.Source)
if err != nil {
return err
}
src, ok := source.(*imageblk.Data)
if !ok {
return fmt.Errorf("Cannot construct imagetile for non-voxels data: %s", d.Source)
}
// Save the current tile specification
d.Levels = tileSpec
if err := datastore.SaveDataByUUID(uuid, d); err != nil {
return err
}
// Get size of tile at lowest resolution.
lastLevel := Scaling(len(tileSpec) - 1)
loresSpec, found := tileSpec[lastLevel]
if !found {
return fmt.Errorf("Illegal tile spec. Should have levels 0 to absent %d.", lastLevel)
}
var loresSize [3]float64
for i := 0; i < 3; i++ {
loresSize[i] = float64(loresSpec.Resolution[i]) * float64(DefaultTileSize[i])
}
loresMag := dvid.Point3d{1, 1, 1}
for i := Scaling(0); i < lastLevel; i++ {
levelMag := tileSpec[i].levelMag
loresMag[0] *= levelMag[0]
loresMag[1] *= levelMag[1]
loresMag[2] *= levelMag[2]
}
// Get min and max points in terms of distance.
var minPtDist, maxPtDist [3]float64
for i := uint8(0); i < 3; i++ {
minPtDist[i] = float64(src.MinPoint.Value(i)) * float64(src.VoxelSize[i])
maxPtDist[i] = float64(src.MaxPoint.Value(i)) * float64(src.VoxelSize[i])
}
// Adjust min and max points for the tileable surface at lowest resolution.
var minTiledPt, maxTiledPt dvid.Point3d
for i := 0; i < 3; i++ {
minInt, _ := math.Modf(minPtDist[i] / loresSize[i])
maxInt, _ := math.Modf(maxPtDist[i] / loresSize[i])
minTileCoord := int32(minInt)
maxTileCoord := int32(maxInt)
minTiledPt[i] = minTileCoord * DefaultTileSize[i] * loresMag[i]
maxTiledPt[i] = (maxTileCoord+1)*DefaultTileSize[i]*loresMag[i] - 1
}
sizeVolume := maxTiledPt.Sub(minTiledPt).AddScalar(1)
// Setup swappable ExtData buffers (the stitched slices) so we can be generating tiles
// at same time we are reading and stitching them.
var bufferLock [2]sync.Mutex
var sliceBuffers [2]*imageblk.Voxels
var bufferNum int
// Get the planes we should tile.
planes, err := config.GetShapes("planes", ";")
if planes == nil {
// If no planes are specified, construct imagetile for 3 orthogonal planes.
planes = []dvid.DataShape{dvid.XY, dvid.XZ, dvid.YZ}
}
outF, err := d.putTileFunc(versionID)
// sort the tile spec keys to iterate from highest to lowest resolution
var sortedKeys []int
for scaling, _ := range tileSpec {
sortedKeys = append(sortedKeys, int(scaling))
}
sort.Ints(sortedKeys)
for _, plane := range planes {
timedLog := dvid.NewTimeLog()
offset := minTiledPt.Duplicate()
switch {
case plane.Equals(dvid.XY):
width, height, err := plane.GetSize2D(sizeVolume)
if err != nil {
return err
}
dvid.Debugf("Tiling XY image %d x %d pixels\n", width, height)
for z := src.MinPoint.Value(2); z <= src.MaxPoint.Value(2); z++ {
server.BlockOnInteractiveRequests("imagetile.ConstructTiles [xy]")
sliceLog := dvid.NewTimeLog()
offset = offset.Modify(map[uint8]int32{2: z})
slice, err := dvid.NewOrthogSlice(dvid.XY, offset, dvid.Point2d{width, height})
if err != nil {
return err
}
bufferLock[bufferNum].Lock()
sliceBuffers[bufferNum], err = src.NewVoxels(slice, nil)
if err != nil {
return err
}
if err = src.GetVoxels(versionID, sliceBuffers[bufferNum], nil); err != nil {
return err
}
// Iterate through the different scales, extracting tiles at each resolution.
go func(bufferNum int, offset dvid.Point) {
defer bufferLock[bufferNum].Unlock()
timedLog := dvid.NewTimeLog()
for _, key := range sortedKeys {
scaling := Scaling(key)
levelSpec := tileSpec[scaling]
if err != nil {
dvid.Errorf("Error in tiling: %v\n", err)
return
}
if err := d.extractTiles(sliceBuffers[bufferNum], offset, scaling, outF); err != nil {
dvid.Errorf("Error in tiling: %v\n", err)
return
}
if int(scaling) < len(tileSpec)-1 {
if err := sliceBuffers[bufferNum].DownRes(levelSpec.levelMag); err != nil {
dvid.Errorf("Error in tiling: %v\n", err)
return
}
}
}
timedLog.Debugf("Tiled XY Tile using buffer %d", bufferNum)
}(bufferNum, offset)
sliceLog.Infof("Read XY Tile @ Z = %d, now tiling...", z)
bufferNum = (bufferNum + 1) % 2
}
timedLog.Infof("Total time to generate XY Tiles")
case plane.Equals(dvid.XZ):
width, height, err := plane.GetSize2D(sizeVolume)
if err != nil {
return err
}
dvid.Debugf("Tiling XZ image %d x %d pixels\n", width, height)
for y := src.MinPoint.Value(1); y <= src.MaxPoint.Value(1); y++ {
server.BlockOnInteractiveRequests("imagetile.ConstructTiles [xz]")
sliceLog := dvid.NewTimeLog()
offset = offset.Modify(map[uint8]int32{1: y})
slice, err := dvid.NewOrthogSlice(dvid.XZ, offset, dvid.Point2d{width, height})
if err != nil {
return err
}
bufferLock[bufferNum].Lock()
sliceBuffers[bufferNum], err = src.NewVoxels(slice, nil)
if err != nil {
return err
}
if err = src.GetVoxels(versionID, sliceBuffers[bufferNum], nil); err != nil {
return err
}
// Iterate through the different scales, extracting tiles at each resolution.
go func(bufferNum int, offset dvid.Point) {
defer bufferLock[bufferNum].Unlock()
timedLog := dvid.NewTimeLog()
for _, key := range sortedKeys {
scaling := Scaling(key)
levelSpec := tileSpec[scaling]
if err != nil {
dvid.Errorf("Error in tiling: %v\n", err)
return
}
if err := d.extractTiles(sliceBuffers[bufferNum], offset, scaling, outF); err != nil {
dvid.Errorf("Error in tiling: %v\n", err)
return
}
if int(scaling) < len(tileSpec)-1 {
if err := sliceBuffers[bufferNum].DownRes(levelSpec.levelMag); err != nil {
dvid.Errorf("Error in tiling: %v\n", err)
return
}
}
}
timedLog.Debugf("Tiled XZ Tile using buffer %d", bufferNum)
}(bufferNum, offset)
sliceLog.Infof("Read XZ Tile @ Y = %d, now tiling...", y)
bufferNum = (bufferNum + 1) % 2
}
timedLog.Infof("Total time to generate XZ Tiles")
case plane.Equals(dvid.YZ):
width, height, err := plane.GetSize2D(sizeVolume)
if err != nil {
return err
}
dvid.Debugf("Tiling YZ image %d x %d pixels\n", width, height)
for x := src.MinPoint.Value(0); x <= src.MaxPoint.Value(0); x++ {
server.BlockOnInteractiveRequests("imagetile.ConstructTiles [yz]")
sliceLog := dvid.NewTimeLog()
offset = offset.Modify(map[uint8]int32{0: x})
slice, err := dvid.NewOrthogSlice(dvid.YZ, offset, dvid.Point2d{width, height})
if err != nil {
return err
}
bufferLock[bufferNum].Lock()
sliceBuffers[bufferNum], err = src.NewVoxels(slice, nil)
if err != nil {
return err
}
if err = src.GetVoxels(versionID, sliceBuffers[bufferNum], nil); err != nil {
return err
}
// Iterate through the different scales, extracting tiles at each resolution.
go func(bufferNum int, offset dvid.Point) {
defer bufferLock[bufferNum].Unlock()
timedLog := dvid.NewTimeLog()
for _, key := range sortedKeys {
scaling := Scaling(key)
levelSpec := tileSpec[scaling]
outF, err := d.putTileFunc(versionID)
if err != nil {
dvid.Errorf("Error in tiling: %v\n", err)
return
}
if err := d.extractTiles(sliceBuffers[bufferNum], offset, scaling, outF); err != nil {
dvid.Errorf("Error in tiling: %v\n", err)
return
}
if int(scaling) < len(tileSpec)-1 {
if err := sliceBuffers[bufferNum].DownRes(levelSpec.levelMag); err != nil {
dvid.Errorf("Error in tiling: %v\n", err)
return
}
}
}
timedLog.Debugf("Tiled YZ Tile using buffer %d", bufferNum)
}(bufferNum, offset)
sliceLog.Debugf("Read YZ Tile @ X = %d, now tiling...", x)
bufferNum = (bufferNum + 1) % 2
}
timedLog.Infof("Total time to generate YZ Tiles")
default:
dvid.Infof("Skipping request to tile '%s'. Unsupported.", plane)
}
}
return nil
}
// CreateComposite creates a new rgba8 image by combining hash of labels + the grayscale
func (d *Data) CreateComposite(request datastore.Request, reply *datastore.Response) error {
timedLog := dvid.NewTimeLog()
// Parse the request
var uuidStr, dataName, cmdStr, grayscaleName, destName string
request.CommandArgs(1, &uuidStr, &dataName, &cmdStr, &grayscaleName, &destName)
// Get the version
uuid, v, err := datastore.MatchingUUID(uuidStr)
if err != nil {
return err
}
// Log request
if err = datastore.AddToNodeLog(uuid, []string{request.Command.String()}); err != nil {
return err
}
// Get the grayscale data.
dataservice, err := datastore.GetDataByUUIDName(uuid, dvid.InstanceName(grayscaleName))
if err != nil {
return err
}
grayscale, ok := dataservice.(*imageblk.Data)
if !ok {
return fmt.Errorf("%s is not the name of uint8 data", grayscaleName)
}
// Create a new rgba8blk data.
var compservice datastore.DataService
compservice, err = datastore.GetDataByUUIDName(uuid, dvid.InstanceName(destName))
if err == nil {
return fmt.Errorf("Data instance with name %q already exists", destName)
}
typeService, err := datastore.TypeServiceByName("rgba8blk")
if err != nil {
return fmt.Errorf("Could not get rgba8 type service from DVID")
}
config := dvid.NewConfig()
compservice, err = datastore.NewData(uuid, typeService, dvid.InstanceName(destName), config)
if err != nil {
return err
}
composite, ok := compservice.(*imageblk.Data)
if !ok {
return fmt.Errorf("Error: %s was unable to be set to rgba8 data", destName)
}
// Iterate through all labels and grayscale chunks incrementally in Z, a layer at a time.
wg := new(sync.WaitGroup)
op := &compositeOp{grayscale, composite, v}
chunkOp := &storage.ChunkOp{op, wg}
store, err := d.GetOrderedKeyValueDB()
if err != nil {
return err
}
ctx := datastore.NewVersionedCtx(d, v)
extents := d.Extents()
blockBeg := imageblk.NewTKey(extents.MinIndex)
blockEnd := imageblk.NewTKey(extents.MaxIndex)
err = store.ProcessRange(ctx, blockBeg, blockEnd, chunkOp, storage.ChunkFunc(d.CreateCompositeChunk))
wg.Wait()
// Set new mapped data to same extents.
composite.Properties.Extents = grayscale.Properties.Extents
if err := datastore.SaveDataByUUID(uuid, composite); err != nil {
dvid.Infof("Could not save new data '%s': %v\n", destName, err)
}
timedLog.Infof("Created composite of %s and %s", grayscaleName, destName)
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) {
// 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()
// 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()
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
}
tilespec, err := LoadTileSpec(jsonBytes)
if err != nil {
server.BadRequest(w, r, err)
return
}
d.Levels = tilespec
if err := datastore.SaveDataByUUID(uuid, d); 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
}
jsonBytes, err := d.Levels.MarshalJSON()
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(uuid, 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(uuid, 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(uuid, 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.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()
// 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())
}
}
func TestROIRepoPersistence(t *testing.T) {
datastore.OpenTest()
defer datastore.CloseTest()
uuid, _ := initTestRepo()
// Add data
config := dvid.NewConfig()
dataservice1, err := datastore.NewData(uuid, roitype, "myroi", config)
if err != nil {
t.Errorf("Error creating new roi instance: %v\n", err)
}
roi1, ok := dataservice1.(*Data)
if !ok {
t.Errorf("Returned new data instance 1 is not roi.Data\n")
}
if roi1.DataName() != "myroi" {
t.Errorf("New roi data instance name set incorrectly: %q != %q\n",
roi1.DataName(), "myroi")
}
config.Set("BlockSize", "15,16,17")
dataservice2, err := datastore.NewData(uuid, roitype, "myroi2", config)
if err != nil {
t.Errorf("Error creating new roi instance: %v\n", err)
}
roi2, ok := dataservice2.(*Data)
if !ok {
t.Errorf("Returned new data instance 2 is not roi.Data\n")
}
roi2.MinZ = 13
roi2.MaxZ = 3098
oldData := *roi2
// Check instance IDs
if roi1.InstanceID() == roi2.InstanceID() {
t.Errorf("Instance IDs should be different: %d == %d\n",
roi1.InstanceID(), roi2.InstanceID())
}
// Restart test datastore and see if datasets are still there.
if err = datastore.SaveDataByUUID(uuid, dataservice1); err != nil {
t.Fatalf("Unable to save data1 during ROI persistence test: %v\n", err)
}
if err = datastore.SaveDataByUUID(uuid, dataservice2); err != nil {
t.Fatalf("Unable to save data2 during ROI persistence test: %v\n", err)
}
datastore.CloseReopenTest()
dataservice3, err := datastore.GetDataByUUID(uuid, "myroi2")
if err != nil {
t.Fatalf("Can't get first ROI instance from reloaded test db: %v\n", err)
}
roi2new, ok := dataservice3.(*Data)
if !ok {
t.Errorf("Returned new data instance 3 is not roi.Data\n")
}
if !oldData.Equals(roi2new) {
t.Errorf("Expected %v, got %v\n", oldData, *roi2new)
}
}
// 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())
}
}
