mirror of https://github.com/tidwall/tile38.git
431 lines
10 KiB
Go
431 lines
10 KiB
Go
package controller
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import (
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"bytes"
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"strconv"
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"strings"
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"time"
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"github.com/tidwall/resp"
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"github.com/tidwall/tile38/controller/bing"
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"github.com/tidwall/tile38/controller/glob"
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"github.com/tidwall/tile38/controller/server"
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"github.com/tidwall/tile38/geojson"
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"github.com/tidwall/tile38/geojson/geohash"
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)
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type liveFenceSwitches struct {
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searchScanBaseTokens
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lat, lon, meters float64
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o geojson.Object
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minLat, minLon float64
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maxLat, maxLon float64
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cmd string
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roam roamSwitches
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}
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type roamSwitches struct {
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on bool
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key string
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id string
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pattern bool
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meters float64
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}
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func (s liveFenceSwitches) Error() string {
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return "going live"
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}
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func (c *Controller) cmdSearchArgs(cmd string, vs []resp.Value, types []string) (s liveFenceSwitches, err error) {
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if vs, s.searchScanBaseTokens, err = parseSearchScanBaseTokens(cmd, vs); err != nil {
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return
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}
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var typ string
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var ok bool
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if vs, typ, ok = tokenval(vs); !ok || typ == "" {
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err = errInvalidNumberOfArguments
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return
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}
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if s.searchScanBaseTokens.output == outputBounds {
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if cmd == "within" || cmd == "intersects" {
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if _, err := strconv.ParseFloat(typ, 64); err == nil {
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// It's likely that the output was not specified, but rather the search bounds.
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s.searchScanBaseTokens.output = defaultSearchOutput
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vs = append([]resp.Value{resp.StringValue(typ)}, vs...)
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typ = "BOUNDS"
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}
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}
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}
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ltyp := strings.ToLower(typ)
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var found bool
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for _, t := range types {
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if ltyp == t {
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found = true
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break
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}
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}
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if !found && s.searchScanBaseTokens.fence && ltyp == "roam" && cmd == "nearby" {
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// allow roaming for nearby fence searches.
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found = true
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}
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if !found {
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err = errInvalidArgument(typ)
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return
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}
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switch ltyp {
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case "point":
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var slat, slon, smeters string
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if vs, slat, ok = tokenval(vs); !ok || slat == "" {
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err = errInvalidNumberOfArguments
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return
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}
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if vs, slon, ok = tokenval(vs); !ok || slon == "" {
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err = errInvalidNumberOfArguments
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return
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}
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if vs, smeters, ok = tokenval(vs); !ok || smeters == "" {
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err = errInvalidNumberOfArguments
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return
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}
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if s.lat, err = strconv.ParseFloat(slat, 64); err != nil {
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err = errInvalidArgument(slat)
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return
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}
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if s.lon, err = strconv.ParseFloat(slon, 64); err != nil {
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err = errInvalidArgument(slon)
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return
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}
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if s.meters, err = strconv.ParseFloat(smeters, 64); err != nil {
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err = errInvalidArgument(smeters)
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return
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}
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case "object":
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var obj string
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if vs, obj, ok = tokenval(vs); !ok || obj == "" {
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err = errInvalidNumberOfArguments
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return
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}
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s.o, err = geojson.ObjectJSON(obj)
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if err != nil {
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return
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}
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case "bounds":
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var sminLat, sminLon, smaxlat, smaxlon string
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if vs, sminLat, ok = tokenval(vs); !ok || sminLat == "" {
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err = errInvalidNumberOfArguments
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return
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}
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if vs, sminLon, ok = tokenval(vs); !ok || sminLon == "" {
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err = errInvalidNumberOfArguments
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return
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}
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if vs, smaxlat, ok = tokenval(vs); !ok || smaxlat == "" {
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err = errInvalidNumberOfArguments
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return
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}
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if vs, smaxlon, ok = tokenval(vs); !ok || smaxlon == "" {
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err = errInvalidNumberOfArguments
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return
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}
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if s.minLat, err = strconv.ParseFloat(sminLat, 64); err != nil {
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err = errInvalidArgument(sminLat)
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return
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}
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if s.minLon, err = strconv.ParseFloat(sminLon, 64); err != nil {
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err = errInvalidArgument(sminLon)
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return
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}
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if s.maxLat, err = strconv.ParseFloat(smaxlat, 64); err != nil {
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err = errInvalidArgument(smaxlat)
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return
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}
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if s.maxLon, err = strconv.ParseFloat(smaxlon, 64); err != nil {
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err = errInvalidArgument(smaxlon)
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return
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}
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case "hash":
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var hash string
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if vs, hash, ok = tokenval(vs); !ok || hash == "" {
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err = errInvalidNumberOfArguments
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return
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}
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if s.minLat, s.minLon, s.maxLat, s.maxLon, err = geohash.Bounds(hash); err != nil {
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err = errInvalidArgument(hash)
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return
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}
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case "quadkey":
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var key string
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if vs, key, ok = tokenval(vs); !ok || key == "" {
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err = errInvalidNumberOfArguments
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return
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}
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if s.minLat, s.minLon, s.maxLat, s.maxLon, err = bing.QuadKeyToBounds(key); err != nil {
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err = errInvalidArgument(key)
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return
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}
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case "tile":
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var sx, sy, sz string
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if vs, sx, ok = tokenval(vs); !ok || sx == "" {
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err = errInvalidNumberOfArguments
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return
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}
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if vs, sy, ok = tokenval(vs); !ok || sy == "" {
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err = errInvalidNumberOfArguments
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return
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}
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if vs, sz, ok = tokenval(vs); !ok || sz == "" {
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err = errInvalidNumberOfArguments
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return
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}
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var x, y int64
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var z uint64
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if x, err = strconv.ParseInt(sx, 10, 64); err != nil {
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err = errInvalidArgument(sx)
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return
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}
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if y, err = strconv.ParseInt(sy, 10, 64); err != nil {
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err = errInvalidArgument(sy)
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return
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}
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if z, err = strconv.ParseUint(sz, 10, 64); err != nil {
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err = errInvalidArgument(sz)
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return
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}
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s.minLat, s.minLon, s.maxLat, s.maxLon = bing.TileXYToBounds(x, y, z)
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case "get":
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var key, id string
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if vs, key, ok = tokenval(vs); !ok || key == "" {
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err = errInvalidNumberOfArguments
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return
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}
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if vs, id, ok = tokenval(vs); !ok || id == "" {
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err = errInvalidNumberOfArguments
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return
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}
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col := c.getCol(key)
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if col == nil {
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err = errKeyNotFound
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return
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}
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o, _, ok := col.Get(id)
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if !ok {
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err = errIDNotFound
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return
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}
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if o.IsBBoxDefined() {
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bbox := o.CalculatedBBox()
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s.minLat = bbox.Min.Y
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s.minLon = bbox.Min.X
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s.maxLat = bbox.Max.Y
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s.maxLon = bbox.Max.X
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} else {
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s.o = o
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}
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case "roam":
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s.roam.on = true
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if vs, s.roam.key, ok = tokenval(vs); !ok || s.roam.key == "" {
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err = errInvalidNumberOfArguments
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return
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}
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if vs, s.roam.id, ok = tokenval(vs); !ok || s.roam.id == "" {
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err = errInvalidNumberOfArguments
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return
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}
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s.roam.pattern = glob.IsGlob(s.roam.id)
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var smeters string
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if vs, smeters, ok = tokenval(vs); !ok || smeters == "" {
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err = errInvalidNumberOfArguments
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return
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}
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if s.roam.meters, err = strconv.ParseFloat(smeters, 64); err != nil {
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err = errInvalidArgument(smeters)
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return
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}
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}
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if len(vs) != 0 {
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err = errInvalidNumberOfArguments
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return
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}
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return
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}
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var nearbyTypes = []string{"point"}
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var withinOrIntersectsTypes = []string{"geo", "bounds", "hash", "tile", "quadkey", "get", "object"}
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func (c *Controller) cmdNearby(msg *server.Message) (res string, err error) {
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start := time.Now()
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vs := msg.Values[1:]
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wr := &bytes.Buffer{}
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s, err := c.cmdSearchArgs("nearby", vs, nearbyTypes)
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if err != nil {
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return "", err
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}
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s.cmd = "nearby"
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if s.fence {
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return "", s
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}
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sw, err := c.newScanWriter(wr, msg, s.key, s.output, s.precision, s.glob, s.limit, s.wheres, s.nofields)
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if err != nil {
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return "", err
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}
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if msg.OutputType == server.JSON {
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wr.WriteString(`{"ok":true`)
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}
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sw.writeHead()
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if sw.col != nil {
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s.cursor = sw.col.Nearby(s.cursor, s.sparse, s.lat, s.lon, s.meters, func(id string, o geojson.Object, fields []float64) bool {
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return sw.writeObject(id, o, fields, false)
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})
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}
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sw.writeFoot(s.cursor)
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if msg.OutputType == server.JSON {
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wr.WriteString(`,"elapsed":"` + time.Now().Sub(start).String() + "\"}")
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}
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return string(wr.Bytes()), nil
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}
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func (c *Controller) cmdWithin(msg *server.Message) (res string, err error) {
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return c.cmdWithinOrIntersects("within", msg)
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}
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func (c *Controller) cmdIntersects(msg *server.Message) (res string, err error) {
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return c.cmdWithinOrIntersects("intersects", msg)
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}
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func (c *Controller) cmdWithinOrIntersects(cmd string, msg *server.Message) (res string, err error) {
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start := time.Now()
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vs := msg.Values[1:]
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wr := &bytes.Buffer{}
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s, err := c.cmdSearchArgs(cmd, vs, withinOrIntersectsTypes)
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if err != nil {
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return "", err
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}
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s.cmd = cmd
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if s.fence {
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return "", s
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}
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sw, err := c.newScanWriter(wr, msg, s.key, s.output, s.precision, s.glob, s.limit, s.wheres, s.nofields)
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if err != nil {
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return "", err
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}
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if sw.col == nil {
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return "", errKeyNotFound
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}
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if msg.OutputType == server.JSON {
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wr.WriteString(`{"ok":true`)
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}
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sw.writeHead()
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if cmd == "within" {
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s.cursor = sw.col.Within(s.cursor, s.sparse, s.o, s.minLat, s.minLon, s.maxLat, s.maxLon,
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func(id string, o geojson.Object, fields []float64) bool {
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return sw.writeObject(id, o, fields, false)
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},
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)
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} else if cmd == "intersects" {
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s.cursor = sw.col.Intersects(s.cursor, s.sparse, s.o, s.minLat, s.minLon, s.maxLat, s.maxLon,
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func(id string, o geojson.Object, fields []float64) bool {
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return sw.writeObject(id, o, fields, false)
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},
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)
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}
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sw.writeFoot(s.cursor)
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if msg.OutputType == server.JSON {
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wr.WriteString(`,"elapsed":"` + time.Now().Sub(start).String() + "\"}")
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}
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return string(wr.Bytes()), nil
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}
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func (c *Controller) cmdSearch(msg *server.Message) (res string, err error) {
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start := time.Now()
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vs := msg.Values[1:]
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var ok bool
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var key string
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if vs, key, ok = tokenval(vs); !ok || key == "" {
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err = errInvalidNumberOfArguments
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return
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}
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col := c.getCol(key)
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if col == nil {
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err = errKeyNotFound
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return
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}
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var tok string
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var pivot string
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var pivoton bool
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var limiton bool
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var limit int
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var descon bool
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var desc bool
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for {
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if vs, tok, ok = tokenval(vs); !ok || tok == "" {
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break
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}
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switch strings.ToLower(tok) {
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default:
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err = errInvalidArgument(tok)
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return
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case "pivot":
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if pivoton {
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err = errInvalidArgument(tok)
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return
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}
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pivoton = true
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if vs, pivot, ok = tokenval(vs); !ok || pivot == "" {
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err = errInvalidNumberOfArguments
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return
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}
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case "limit":
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if limiton {
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err = errInvalidArgument(tok)
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return
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}
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limiton = true
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if vs, tok, ok = tokenval(vs); !ok || tok == "" {
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err = errInvalidNumberOfArguments
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return
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}
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n, err2 := strconv.ParseUint(tok, 10, 64)
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if err2 != nil {
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err = errInvalidArgument(tok)
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return
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}
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limit = int(n)
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case "asc", "desc":
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if descon {
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err = errInvalidArgument(tok)
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return
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}
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descon = true
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switch strings.ToLower(tok) {
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case "asc":
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desc = false
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case "desc":
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desc = true
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}
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}
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}
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println(pivoton, pivot)
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println(limiton, limit)
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println(descon, desc)
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wr := &bytes.Buffer{}
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if msg.OutputType == server.JSON {
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wr.WriteString(`{"ok":true,"objects":[`)
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}
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n := 0
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col.SearchValues(pivot, desc, func(id string, obj geojson.Object, fields []float64) bool {
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if msg.OutputType == server.JSON {
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if n > 0 {
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wr.WriteString(`,`)
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}
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wr.WriteString(`{"id":` + jsonString(id) + `,"object":` + obj.JSON() + `}`)
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n++
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}
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return true
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})
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if msg.OutputType == server.JSON {
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wr.WriteString(`],"elapsed":"` + time.Now().Sub(start).String() + "\"}")
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}
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return string(wr.Bytes()), nil
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}
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