mirror of https://github.com/tidwall/tile38.git
80 lines
1.9 KiB
Go
80 lines
1.9 KiB
Go
package controller
|
|
|
|
import (
|
|
"bytes"
|
|
"time"
|
|
|
|
"github.com/tidwall/resp"
|
|
"github.com/tidwall/tile38/controller/glob"
|
|
"github.com/tidwall/tile38/controller/server"
|
|
"github.com/tidwall/tile38/geojson"
|
|
)
|
|
|
|
func cmdScanArgs(vs []resp.Value) (s liveFenceSwitches, err error) {
|
|
if vs, s.searchScanBaseTokens, err = parseSearchScanBaseTokens("scan", vs); err != nil {
|
|
return
|
|
}
|
|
if len(vs) != 0 {
|
|
err = errInvalidNumberOfArguments
|
|
return
|
|
}
|
|
return
|
|
}
|
|
|
|
func (c *Controller) cmdScan(msg *server.Message) (res string, err error) {
|
|
start := time.Now()
|
|
vs := msg.Values[1:]
|
|
|
|
wr := &bytes.Buffer{}
|
|
s, err := cmdScanArgs(vs)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
sw, err := c.newScanWriter(wr, msg, s.key, s.output, s.precision, s.glob, false, s.limit, s.wheres, s.nofields)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
if msg.OutputType == server.JSON {
|
|
wr.WriteString(`{"ok":true`)
|
|
}
|
|
sw.writeHead()
|
|
if sw.col != nil {
|
|
if sw.output == outputCount && len(sw.wheres) == 0 && sw.globEverything == true {
|
|
count := sw.col.Count() - int(s.cursor)
|
|
if count < 0 {
|
|
count = 0
|
|
}
|
|
sw.count = uint64(count)
|
|
} else {
|
|
g := glob.Parse(sw.globPattern, s.desc)
|
|
if g.Limits[0] == "" && g.Limits[1] == "" {
|
|
s.cursor = sw.col.Scan(s.cursor, s.desc,
|
|
func(id string, o geojson.Object, fields []float64) bool {
|
|
return sw.writeObject(ScanWriterParams{
|
|
id: id,
|
|
o: o,
|
|
fields: fields,
|
|
})
|
|
},
|
|
)
|
|
} else {
|
|
s.cursor = sw.col.ScanRange(
|
|
s.cursor, g.Limits[0], g.Limits[1], s.desc,
|
|
func(id string, o geojson.Object, fields []float64) bool {
|
|
return sw.writeObject(ScanWriterParams{
|
|
id: id,
|
|
o: o,
|
|
fields: fields,
|
|
})
|
|
},
|
|
)
|
|
}
|
|
}
|
|
}
|
|
sw.writeFoot(s.cursor)
|
|
if msg.OutputType == server.JSON {
|
|
wr.WriteString(`,"elapsed":"` + time.Now().Sub(start).String() + "\"}")
|
|
}
|
|
return string(wr.Bytes()), nil
|
|
}
|