// DataBySpec returns a ROI Data based on a string specification of the form
// "<roiname>,<uuid>". If the given string is not parsable, the "found" return value is false.
func DataBySpec(spec string) (d *Data, v dvid.VersionID, found bool, err error) {
roispec := strings.Split(spec, ",")
if len(roispec) != 2 {
err = fmt.Errorf("Expect ROI filters to have format %q, but got %q", "roi:<roiname>,<uuid>", spec)
return
}
roiName := dvid.InstanceName(roispec[0])
_, v, err = datastore.MatchingUUID(roispec[1])
if err != nil {
return
}
var data datastore.DataService
data, err = datastore.GetDataByVersionName(v, roiName)
if err != nil {
return
}
var ok bool
d, ok = data.(*Data)
if !ok {
err = fmt.Errorf("Data instance %q is not ROI instance", roiName)
return
}
found = true
return
}
// repoSelector retrieves the particular repo from a potentially partial string that uniquely
// identifies the repo.
func repoSelector(c *web.C, h http.Handler) http.Handler {
fn := func(w http.ResponseWriter, r *http.Request) {
action := strings.ToLower(r.Method)
if readonly && action != "get" && action != "head" {
BadRequest(w, r, "Server in read-only mode and will only accept GET and HEAD requests")
return
}
var err error
var uuid dvid.UUID
if uuid, c.Env["versionID"], err = datastore.MatchingUUID(c.URLParams["uuid"]); err != nil {
BadRequest(w, r, err)
return
}
c.Env["uuid"] = uuid
// Make sure locked nodes can't use anything besides GET and HEAD
locked, err := datastore.LockedUUID(uuid)
if err != nil {
BadRequest(w, r, err)
return
}
branchRequest := (c.URLParams["action"] == "branch")
mergeRequest := (c.URLParams["action"] == "merge")
if locked && !branchRequest && !mergeRequest && action != "get" && action != "head" {
BadRequest(w, r, "Cannot do %s on locked node %s", action, uuid)
return
}
h.ServeHTTP(w, r)
}
return http.HandlerFunc(fn)
}
// put handles a PUT command-line request.
func (d *Data) put(cmd datastore.Request, reply *datastore.Response) error {
if len(cmd.Command) < 5 {
return fmt.Errorf("The key name must be specified after 'put'")
}
if len(cmd.Input) == 0 {
return fmt.Errorf("No data was passed into standard input")
}
var uuidStr, dataName, cmdStr, keyStr string
cmd.CommandArgs(1, &uuidStr, &dataName, &cmdStr, &keyStr)
_, versionID, err := datastore.MatchingUUID(uuidStr)
if err != nil {
return err
}
// Store data
if !d.Versioned() {
// Map everything to root version.
versionID, err = datastore.GetRepoRootVersion(versionID)
if err != nil {
return err
}
}
ctx := datastore.NewVersionedCtx(d, versionID)
if err = d.PutData(ctx, keyStr, cmd.Input); err != nil {
return fmt.Errorf("Error on put to key %q for keyvalue %q: %v\n", keyStr, d.DataName(), err)
}
reply.Output = []byte(fmt.Sprintf("Put %d bytes into key %q for keyvalue %q, uuid %s\n",
len(cmd.Input), keyStr, d.DataName(), uuidStr))
return nil
}
// 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
}
func repoMergeHandler(c web.C, w http.ResponseWriter, r *http.Request) {
if r.Body == nil {
BadRequest(w, r, "merge requires JSON to be POSTed per API documentation")
return
}
data, err := ioutil.ReadAll(r.Body)
if err != nil {
BadRequest(w, r, err)
return
}
jsonData := struct {
MergeType string `json:"mergeType"`
Note string `json:"note"`
Parents []string `json:"parents"`
}{}
if err := json.Unmarshal(data, &jsonData); err != nil {
BadRequest(w, r, fmt.Sprintf("Malformed JSON request in body: %v", err))
return
}
if len(jsonData.Parents) < 2 {
BadRequest(w, r, "Must specify at least two parent UUIDs using 'parents' field")
return
}
// Convert JSON of parents into []UUID
parents := make([]dvid.UUID, len(jsonData.Parents))
for i, uuidFrag := range jsonData.Parents {
uuid, _, err := datastore.MatchingUUID(uuidFrag)
if err != nil {
BadRequest(w, r, fmt.Sprintf("can't match parent %q: %v", uuidFrag, err))
return
}
parents[i] = uuid
}
// Convert merge type designation
var mt datastore.MergeType
switch jsonData.MergeType {
case "conflict-free":
mt = datastore.MergeConflictFree
default:
BadRequest(w, r, fmt.Sprintf("'mergeType' must be 'conflict-free' at this time"))
return
}
// Do the merge
newuuid, err := datastore.Merge(parents, jsonData.Note, mt)
if err != nil {
BadRequest(w, r, err)
} else {
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, "{%q: %q}", "child", newuuid)
}
}
// repoRawSelector retrieves the particular repo from a potentially partial string that uniquely
// identifies the repo without any access restrictions.
func repoRawSelector(c *web.C, h http.Handler) http.Handler {
fn := func(w http.ResponseWriter, r *http.Request) {
var err error
var uuid dvid.UUID
if uuid, c.Env["versionID"], err = datastore.MatchingUUID(c.URLParams["uuid"]); err != nil {
BadRequest(w, r, err)
return
}
c.Env["uuid"] = uuid
h.ServeHTTP(w, r)
}
return http.HandlerFunc(fn)
}
// ParseFilterSpec returns the specified ROI instance name and version within a FilterSpec.
// Currently, only one ROI can be specified in a FilterSpec. Multiple ROIs should use a
// different FilterSpec like "intersect" instead of "roi".
func ParseFilterSpec(spec storage.FilterSpec) (name dvid.InstanceName, v dvid.VersionID, found bool, err error) {
var filterval string
filterval, found = spec.GetFilterSpec("roi")
if !found {
return
}
roispec := strings.Split(filterval, ",")
if len(roispec) != 2 {
err = fmt.Errorf("bad ROI spec: %s", filterval)
return
}
name = dvid.InstanceName(roispec[0])
_, v, err = datastore.MatchingUUID(roispec[1])
return
}
// ForegroundROI creates a new ROI by determining all non-background blocks.
func (d *Data) ForegroundROI(req datastore.Request, reply *datastore.Response) error {
if d.Values.BytesPerElement() != 1 {
return fmt.Errorf("Foreground ROI command only implemented for 1 byte/voxel data!")
}
// Parse the request
var uuidStr, dataName, cmdStr, destName, backgroundStr string
req.CommandArgs(1, &uuidStr, &dataName, &cmdStr, &destName, &backgroundStr)
// Get the version and repo
uuid, versionID, err := datastore.MatchingUUID(uuidStr)
if err != nil {
return err
}
if err = datastore.AddToNodeLog(uuid, []string{req.Command.String()}); err != nil {
return err
}
// Use existing destination data or a new ROI data.
var dest *roi.Data
dest, err = roi.GetByUUID(uuid, dvid.InstanceName(destName))
if err != nil {
config := dvid.NewConfig()
typeservice, err := datastore.TypeServiceByName("roi")
if err != nil {
return err
}
dataservice, err := datastore.NewData(uuid, typeservice, dvid.InstanceName(destName), config)
if err != nil {
return err
}
var ok bool
dest, ok = dataservice.(*roi.Data)
if !ok {
return fmt.Errorf("Could not create ROI data instance")
}
}
// Asynchronously process the voxels.
background, err := dvid.StringToPointNd(backgroundStr, ",")
if err != nil {
return err
}
go d.foregroundROI(versionID, dest, background)
return nil
}
// repoSelector retrieves the particular repo from a potentially partial string that uniquely
// identifies the repo and enforces read-only mode.
func repoSelector(c *web.C, h http.Handler) http.Handler {
fn := func(w http.ResponseWriter, r *http.Request) {
if httpUnavailable(w) {
return
}
action := strings.ToLower(r.Method)
if readonly && action != "get" && action != "head" {
BadRequest(w, r, "Server in read-only mode and will only accept GET and HEAD requests")
return
}
var err error
var uuid dvid.UUID
if uuid, c.Env["versionID"], err = datastore.MatchingUUID(c.URLParams["uuid"]); err != nil {
BadRequest(w, r, err)
return
}
c.Env["uuid"] = uuid
h.ServeHTTP(w, r)
}
return http.HandlerFunc(fn)
}
// 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 repoResolveHandler(c web.C, w http.ResponseWriter, r *http.Request) {
uuid, _, err := datastore.MatchingUUID(c.URLParams["uuid"])
if err != nil {
BadRequest(w, r, err)
return
}
if r.Body == nil {
BadRequest(w, r, "merge resolving requires JSON to be POSTed per API documentation")
return
}
data, err := ioutil.ReadAll(r.Body)
if err != nil {
BadRequest(w, r, err)
return
}
jsonData := struct {
Data []dvid.InstanceName `json:"data"`
Note string `json:"note"`
Parents []string `json:"parents"`
}{}
if err := json.Unmarshal(data, &jsonData); err != nil {
BadRequest(w, r, fmt.Sprintf("Malformed JSON request in body: %v", err))
return
}
if len(jsonData.Data) == 0 {
BadRequest(w, r, "Must specify at least one data instance using 'data' field")
return
}
if len(jsonData.Parents) < 2 {
BadRequest(w, r, "Must specify at least two parent UUIDs using 'parents' field")
return
}
// Convert JSON of parents into []UUID and whether we need a child for them to add deletions.
numParents := len(jsonData.Parents)
oldParents := make([]dvid.UUID, numParents)
newParents := make([]dvid.UUID, numParents, numParents) // UUID of any parent extension for deletions.
for i, uuidFrag := range jsonData.Parents {
uuid, _, err := datastore.MatchingUUID(uuidFrag)
if err != nil {
BadRequest(w, r, fmt.Sprintf("can't match parent %q: %v", uuidFrag, err))
return
}
oldParents[i] = uuid
newParents[i] = dvid.NilUUID
}
// Iterate through all k/v for given data instances, making sure we find any conflicts.
// If any are found, remove them with first UUIDs taking priority.
for _, name := range jsonData.Data {
data, err := datastore.GetDataByUUIDName(uuid, name)
if err != nil {
BadRequest(w, r, err)
return
}
if err := datastore.DeleteConflicts(uuid, data, oldParents, newParents); err != nil {
BadRequest(w, r, fmt.Errorf("Conflict deletion error for data %q: %v", data.DataName(), err))
return
}
}
// If we have any new nodes to accomodate deletions, commit them.
for i, oldUUID := range oldParents {
if newParents[i] != oldUUID {
err := datastore.Commit(newParents[i], "Version for deleting conflicts before merge", nil)
if err != nil {
BadRequest(w, r, "Error while creating new nodes to handle required deletions: %v", err)
return
}
}
}
// Do the merge
mt := datastore.MergeConflictFree
newuuid, err := datastore.Merge(newParents, jsonData.Note, mt)
if err != nil {
BadRequest(w, r, err)
} else {
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, "{%q: %q}", "child", newuuid)
}
}
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
}
// Returns the default tile spec that will fully cover the source extents and scaling 0
// uses the original voxel resolutions with each subsequent scale causing a 2x zoom out.
func (d *Data) DefaultTileSpec(uuidStr string) (TileSpec, error) {
uuid, _, err := datastore.MatchingUUID(uuidStr)
if err != nil {
return nil, err
}
source, err := datastore.GetDataByUUID(uuid, d.Source)
if err != nil {
return nil, err
}
var ok bool
var src *imageblk.Data
src, ok = source.(*imageblk.Data)
if !ok {
return nil, fmt.Errorf("Cannot construct tile spec for non-voxels data: %s", d.Source)
}
// Set scaling 0 based on extents and resolution of source.
//extents := src.Extents()
resolution := src.Properties.Resolution.VoxelSize
if len(resolution) != 3 {
return nil, fmt.Errorf("Cannot construct tile spec for non-3d data: voxel is %d-d",
len(resolution))
}
// Expand min and max points to coincide with full tile boundaries of highest resolution.
minTileCoord := src.MinPoint.(dvid.Chunkable).Chunk(DefaultTileSize)
maxTileCoord := src.MaxPoint.(dvid.Chunkable).Chunk(DefaultTileSize)
minTiledPt := minTileCoord.MinPoint(DefaultTileSize)
maxTiledPt := maxTileCoord.MaxPoint(DefaultTileSize)
sizeVolume := maxTiledPt.Sub(minTiledPt).AddScalar(1)
dvid.Infof("Creating default multiscale tile spec for volume of size %s\n", sizeVolume)
// For each dimension, calculate the number of scaling levels necessary to cover extent,
// assuming we use the raw resolution at scaling 0.
numScales := make([]int, 3)
var maxScales int
var dim uint8
for dim = 0; dim < 3; dim++ {
numPixels := float64(sizeVolume.Value(dim))
tileSize := float64(DefaultTileSize.Value(dim))
if numPixels <= tileSize {
numScales[dim] = 1
} else {
numScales[dim] = int(math.Ceil(math.Log2(numPixels/tileSize))) + 1
}
if numScales[dim] > maxScales {
maxScales = numScales[dim]
}
}
// Initialize the tile level specification
specs := make(TileSpec, maxScales)
curRes := resolution
levelMag := dvid.Point3d{2, 2, 2}
var scaling Scaling
for scaling = 0; scaling < Scaling(maxScales); scaling++ {
for dim = 0; dim < 3; dim++ {
if scaling >= Scaling(numScales[dim]) {
levelMag[dim] = 1
}
}
specs[scaling] = TileScaleSpec{
LevelSpec{curRes, DefaultTileSize},
levelMag,
}
curRes = curRes.MultScalar(2.0)
}
return specs, nil
}
// switchboard for remote command execution
func handleCommand(cmd *datastore.Request) (reply *datastore.Response, err error) {
if cmd.Name() == "" {
err = fmt.Errorf("Server error: got empty command!")
return
}
reply = new(datastore.Response)
switch cmd.Name() {
case "help":
reply.Text = fmt.Sprintf(RPCHelpMessage, config.RPCAddress(), config.HTTPAddress())
case "shutdown":
dvid.Infof("DVID server halting due to 'shutdown' command.")
reply.Text = fmt.Sprintf("DVID server at %s is being shutdown...\n", config.RPCAddress())
// launch goroutine shutdown so we can concurrently return shutdown message to client.
go Shutdown()
case "types":
if len(cmd.Command) == 1 {
text := "\nData Types within this DVID Server\n"
text += "----------------------------------\n"
var mapTypes map[dvid.URLString]datastore.TypeService
if mapTypes, err = datastore.Types(); err != nil {
err = fmt.Errorf("Error trying to retrieve data types within this DVID server!")
return
}
for url, typeservice := range mapTypes {
text += fmt.Sprintf("%-20s %s\n", typeservice.GetTypeName(), url)
}
reply.Text = text
} else {
if len(cmd.Command) != 3 || cmd.Command[2] != "help" {
err = fmt.Errorf("Unknown types command: %q", cmd.Command)
return
}
var typename string
var typeservice datastore.TypeService
cmd.CommandArgs(1, &typename)
if typeservice, err = datastore.TypeServiceByName(dvid.TypeString(typename)); err != nil {
return
}
reply.Text = typeservice.Help()
}
case "repos":
var subcommand string
cmd.CommandArgs(1, &subcommand)
switch subcommand {
case "new":
var alias, description string
cmd.CommandArgs(2, &alias, &description)
config := cmd.Settings()
var uuidStr, passcode string
var found bool
if uuidStr, found, err = config.GetString("uuid"); err != nil {
return
}
var assign *dvid.UUID
if !found {
assign = nil
} else {
uuid := dvid.UUID(uuidStr)
assign = &uuid
}
if passcode, found, err = config.GetString("passcode"); err != nil {
return
}
var root dvid.UUID
root, err = datastore.NewRepo(alias, description, assign, passcode)
if err != nil {
return
}
if err = datastore.SetRepoAlias(root, alias); err != nil {
return
}
if err = datastore.SetRepoDescription(root, description); err != nil {
return
}
reply.Text = fmt.Sprintf("New repo %q created with head node %s\n", alias, root)
case "delete":
var uuidStr, passcode string
cmd.CommandArgs(2, &uuidStr, &passcode)
var uuid dvid.UUID
if uuid, _, err = datastore.MatchingUUID(uuidStr); err != nil {
return
}
if err = datastore.DeleteRepo(uuid, passcode); err != nil {
return
}
reply.Text = fmt.Sprintf("Started deletion of repo %s.\n", uuid)
default:
err = fmt.Errorf("Unknown repos command: %q", subcommand)
return
}
case "repo":
var uuidStr, subcommand string
cmd.CommandArgs(1, &uuidStr, &subcommand)
var uuid dvid.UUID
if uuid, _, err = datastore.MatchingUUID(uuidStr); err != nil {
return
}
switch subcommand {
case "new":
var typename, dataname string
cmd.CommandArgs(3, &typename, &dataname)
// Get TypeService
var typeservice datastore.TypeService
if typeservice, err = datastore.TypeServiceByName(dvid.TypeString(typename)); err != nil {
return
}
// Create new data
config := cmd.Settings()
if _, err = datastore.NewData(uuid, typeservice, dvid.InstanceName(dataname), config); err != nil {
return
}
reply.Text = fmt.Sprintf("Data %q [%s] added to node %s\n", dataname, typename, uuid)
datastore.AddToRepoLog(uuid, []string{cmd.String()})
case "rename":
var name1, name2, passcode string
cmd.CommandArgs(3, &name1, &name2, &passcode)
oldname := dvid.InstanceName(name1)
newname := dvid.InstanceName(name2)
// Make sure this instance exists.
if _, err = datastore.GetDataByUUIDName(uuid, oldname); err != nil {
err = fmt.Errorf("Error trying to rename %q for UUID %s: %v", oldname, uuid, err)
return
}
// Do the rename.
if err = datastore.RenameData(uuid, oldname, newname, passcode); err != nil {
err = fmt.Errorf("Error renaming data instance %q to %q: %v", oldname, newname, err)
return
}
reply.Text = fmt.Sprintf("Renamed data instance %q to %q from DAG subgraph @ root %s\n", oldname, newname, uuid)
case "branch":
cmd.CommandArgs(3, &uuidStr)
var assign *dvid.UUID
if uuidStr == "" {
assign = nil
} else {
u := dvid.UUID(uuidStr)
assign = &u
}
var child dvid.UUID
if child, err = datastore.NewVersion(uuid, fmt.Sprintf("branch of %s", uuid), assign); err != nil {
return
}
reply.Text = fmt.Sprintf("Branch %s added to node %s\n", child, uuid)
datastore.AddToRepoLog(uuid, []string{cmd.String()})
case "merge":
uuids := cmd.CommandArgs(2)
parents := make([]dvid.UUID, len(uuids)+1)
parents[0] = dvid.UUID(uuid)
i := 1
for uuid := range uuids {
parents[i] = dvid.UUID(uuid)
i++
}
var child dvid.UUID
child, err = datastore.Merge(parents, fmt.Sprintf("merge of parents %v", parents), datastore.MergeConflictFree)
if err != nil {
return
}
reply.Text = fmt.Sprintf("Parents %v merged into node %s\n", parents, child)
datastore.AddToRepoLog(uuid, []string{cmd.String()})
case "migrate":
var source, oldStoreName string
cmd.CommandArgs(3, &source, &oldStoreName)
var store dvid.Store
store, err = storage.GetStoreByAlias(storage.Alias(oldStoreName))
if err != nil {
return
}
config := cmd.Settings()
go func() {
if err = datastore.MigrateInstance(uuid, dvid.InstanceName(source), store, config); err != nil {
dvid.Errorf("migrate error: %v\n", err)
}
}()
reply.Text = fmt.Sprintf("Started migration of uuid %s data instance %q from old store %q...\n", uuid, source, oldStoreName)
case "copy":
var source, target string
cmd.CommandArgs(3, &source, &target)
config := cmd.Settings()
go func() {
if err = datastore.CopyInstance(uuid, dvid.InstanceName(source), dvid.InstanceName(target), config); err != nil {
dvid.Errorf("copy error: %v\n", err)
}
}()
reply.Text = fmt.Sprintf("Started copy of uuid %s data instance %q to %q...\n", uuid, source, target)
case "push":
var target string
cmd.CommandArgs(3, &target)
config := cmd.Settings()
go func() {
if err = datastore.PushRepo(uuid, target, config); err != nil {
dvid.Errorf("push error: %v\n", err)
}
}()
reply.Text = fmt.Sprintf("Started push of repo %s to %q...\n", uuid, target)
/*
case "pull":
var target string
cmd.CommandArgs(3, &target)
config := cmd.Settings()
if err = datastore.Pull(uuid, target, config); err != nil {
return
}
reply.Text = fmt.Sprintf("Repo %s pulled from %q\n", uuid, target)
*/
case "delete":
var dataname, passcode string
cmd.CommandArgs(3, &dataname, &passcode)
// Make sure this instance exists.
if _, err = datastore.GetDataByUUIDName(uuid, dvid.InstanceName(dataname)); err != nil {
err = fmt.Errorf("Error trying to delete %q for UUID %s: %v", dataname, uuid, err)
return
}
// Do the deletion. Under hood, modifies metadata immediately and launches async k/v deletion.
if err = datastore.DeleteDataByName(uuid, dvid.InstanceName(dataname), passcode); err != nil {
err = fmt.Errorf("Error deleting data instance %q: %v", dataname, err)
return
}
reply.Text = fmt.Sprintf("Started deletion of data instance %q from repo with root %s\n", dataname, uuid)
default:
err = fmt.Errorf("Unknown command: %q", cmd)
return
}
case "node":
var uuidStr, descriptor string
cmd.CommandArgs(1, &uuidStr, &descriptor)
var uuid dvid.UUID
if uuid, _, err = datastore.MatchingUUID(uuidStr); err != nil {
return
}
// Get the DataService
dataname := dvid.InstanceName(descriptor)
var subcommand string
cmd.CommandArgs(3, &subcommand)
var dataservice datastore.DataService
if dataservice, err = datastore.GetDataByUUIDName(uuid, dataname); err != nil {
return
}
if subcommand == "help" {
reply.Text = dataservice.Help()
return
}
err = dataservice.DoRPC(*cmd, reply)
return
default:
// Check to see if it's a name of a compiled data type, in which case we refer it to the data type.
types := datastore.CompiledTypes()
for name, typeservice := range types {
if name == dvid.TypeString(cmd.Argument(0)) {
err = typeservice.Do(*cmd, reply)
return
}
}
err = fmt.Errorf("Unknown command: '%s'", *cmd)
}
return
}
// PutLocal adds image data to a version node, altering underlying blocks if the image
// intersects the block.
//
// The image filename glob MUST BE absolute file paths that are visible to the server.
// This function is meant for mass ingestion of large data files, and it is inappropriate
// to read gigabytes of data just to send it over the network to a local DVID.
func (d *Data) PutLocal(request datastore.Request, reply *datastore.Response) error {
timedLog := dvid.NewTimeLog()
// Parse the request
var uuidStr, dataName, cmdStr, sourceStr, planeStr, offsetStr string
filenames := request.CommandArgs(1, &uuidStr, &dataName, &cmdStr, &sourceStr,
&planeStr, &offsetStr)
if len(filenames) == 0 {
return fmt.Errorf("Need to include at least one file to add: %s", request)
}
// 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")
// Get plane
plane, err := dvid.DataShapeString(planeStr).DataShape()
if err != nil {
return err
}
// Get Repo and IDs
uuid, versionID, err := datastore.MatchingUUID(uuidStr)
if err != nil {
return err
}
// Load and PUT each image.
numSuccessful := 0
for _, filename := range filenames {
sliceLog := dvid.NewTimeLog()
img, _, err := dvid.GoImageFromFile(filename)
if err != nil {
return fmt.Errorf("Error after %d images successfully added: %v", numSuccessful, err)
}
slice, err := dvid.NewOrthogSlice(plane, offset, dvid.RectSize(img.Bounds()))
if err != nil {
return fmt.Errorf("Unable to determine slice: %v", err)
}
vox, err := d.NewVoxels(slice, img)
if err != nil {
return err
}
storage.FileBytesRead <- len(vox.Data())
if err = d.PutVoxels(versionID, vox, nil); err != nil {
return err
}
sliceLog.Debugf("%s put local %s", d.DataName(), slice)
numSuccessful++
offset = offset.Add(dvid.Point3d{0, 0, 1})
}
if err := datastore.AddToNodeLog(uuid, []string{request.Command.String()}); err != nil {
return err
}
timedLog.Infof("RPC put local (%s) completed", addedFiles)
return nil
}
// 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 {
hostname, _ := os.Hostname()
return fmt.Errorf("Couldn't find any files to add. Are they visible to DVID server on %s?",
hostname)
}
// 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
}
return d.LoadImages(versionID, offset, filenames)
case "put":
if len(req.Command) < 7 {
return fmt.Errorf("Poorly formatted put command. See command-line help.")
}
source := req.Command[4]
switch source {
case "local":
return d.PutLocal(req, reply)
case "remote":
return fmt.Errorf("put remote not yet implemented")
default:
return fmt.Errorf("Unknown command. Data instance '%s' [%s] does not support '%s' command.",
d.DataName(), d.TypeName(), req.TypeCommand())
}
case "roi":
if len(req.Command) < 6 {
return fmt.Errorf("Poorly formatted roi command. See command-line help.")
}
return d.ForegroundROI(req, reply)
default:
return fmt.Errorf("Unknown command. Data instance '%s' [%s] does not support '%s' command.",
d.DataName(), d.TypeName(), req.TypeCommand())
}
return nil
}
// Do acts as a switchboard for remote command execution
func (c *RPCConnection) Do(cmd datastore.Request, reply *datastore.Response) error {
if reply == nil {
dvid.Debugf("reply is nil coming in!\n")
return nil
}
if cmd.Name() == "" {
return fmt.Errorf("Server error: got empty command!")
}
switch cmd.Name() {
case "help":
reply.Text = fmt.Sprintf(RPCHelpMessage, config.RPCAddress(), config.HTTPAddress())
case "shutdown":
Shutdown()
// Make this process shutdown in a second to allow time for RPC to finish.
// TODO -- Better way to do this?
log.Printf("DVID server halted due to 'shutdown' command.")
reply.Text = fmt.Sprintf("DVID server at %s has been halted.\n", config.RPCAddress())
go func() {
time.Sleep(1 * time.Second)
os.Exit(0)
}()
case "types":
if len(cmd.Command) == 1 {
text := "\nData Types within this DVID Server\n"
text += "----------------------------------\n"
mapTypes, err := datastore.Types()
if err != nil {
return fmt.Errorf("Error trying to retrieve data types within this DVID server!")
}
for url, typeservice := range mapTypes {
text += fmt.Sprintf("%-20s %s\n", typeservice.GetTypeName(), url)
}
reply.Text = text
} else {
if len(cmd.Command) != 3 || cmd.Command[2] != "help" {
return fmt.Errorf("Unknown types command: %q", cmd.Command)
}
var typename string
cmd.CommandArgs(1, &typename)
typeservice, err := datastore.TypeServiceByName(dvid.TypeString(typename))
if err != nil {
return err
}
reply.Text = typeservice.Help()
}
case "repos":
var subcommand, alias, description, uuidStr string
cmd.CommandArgs(1, &subcommand, &alias, &description, &uuidStr)
switch subcommand {
case "new":
var assign *dvid.UUID
if uuidStr == "" {
assign = nil
} else {
u := dvid.UUID(uuidStr)
assign = &u
}
root, err := datastore.NewRepo(alias, description, assign)
if err != nil {
return err
}
if err := datastore.SetRepoAlias(root, alias); err != nil {
return err
}
if err := datastore.SetRepoDescription(root, description); err != nil {
return err
}
reply.Text = fmt.Sprintf("New repo %q created with head node %s\n", alias, root)
default:
return fmt.Errorf("Unknown repos command: %q", subcommand)
}
case "repo":
var uuidStr, subcommand string
cmd.CommandArgs(1, &uuidStr, &subcommand)
uuid, _, err := datastore.MatchingUUID(uuidStr)
if err != nil {
return err
}
switch subcommand {
case "new":
var typename, dataname string
cmd.CommandArgs(3, &typename, &dataname)
// Get TypeService
typeservice, err := datastore.TypeServiceByName(dvid.TypeString(typename))
if err != nil {
return err
}
// Create new data
config := cmd.Settings()
_, err = datastore.NewData(uuid, typeservice, dvid.InstanceName(dataname), config)
if err != nil {
return err
}
reply.Text = fmt.Sprintf("Data %q [%s] added to node %s\n", dataname, typename, uuid)
datastore.AddToRepoLog(uuid, []string{cmd.String()})
case "branch":
cmd.CommandArgs(3, &uuidStr)
var assign *dvid.UUID
if uuidStr == "" {
assign = nil
} else {
u := dvid.UUID(uuidStr)
assign = &u
}
child, err := datastore.NewVersion(uuid, fmt.Sprintf("branch of %s", uuid), assign)
if err != nil {
return err
}
reply.Text = fmt.Sprintf("Branch %s added to node %s\n", child, uuid)
datastore.AddToRepoLog(uuid, []string{cmd.String()})
case "merge":
uuids := cmd.CommandArgs(2)
parents := make([]dvid.UUID, len(uuids)+1)
parents[0] = dvid.UUID(uuid)
i := 1
for uuid := range uuids {
parents[i] = dvid.UUID(uuid)
i++
}
child, err := datastore.Merge(parents, fmt.Sprintf("merge of parents %v", parents), datastore.MergeConflictFree)
if err != nil {
return err
}
reply.Text = fmt.Sprintf("Parents %v merged into node %s\n", parents, child)
datastore.AddToRepoLog(uuid, []string{cmd.String()})
case "push":
/*
var target string
cmd.CommandArgs(3, &target)
config := cmd.Settings()
if err = datastore.Push(repo, target, config); err != nil {
return err
}
reply.Text = fmt.Sprintf("Repo %q pushed to %q\n", repo.RootUUID(), target)
*/
return fmt.Errorf("push command has been temporarily suspended")
default:
return fmt.Errorf("Unknown command: %q", cmd)
}
case "node":
var uuidStr, descriptor string
cmd.CommandArgs(1, &uuidStr, &descriptor)
uuid, _, err := datastore.MatchingUUID(uuidStr)
if err != nil {
return err
}
// Get the DataService
dataname := dvid.InstanceName(descriptor)
var subcommand string
cmd.CommandArgs(3, &subcommand)
dataservice, err := datastore.GetDataByUUID(uuid, dataname)
if err != nil {
return err
}
if subcommand == "help" {
reply.Text = dataservice.Help()
return nil
}
return dataservice.DoRPC(cmd, reply)
default:
return fmt.Errorf("Unknown command: '%s'", cmd)
}
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
}