removed gzipped feature

This commit is contained in:
Josh Baker 2016-12-29 11:54:21 -07:00
parent 63268dad3f
commit d47279e1ff
2 changed files with 17 additions and 38 deletions

View File

@ -2,9 +2,7 @@ package geojson
import (
"bytes"
"compress/gzip"
"encoding/binary"
"io/ioutil"
"github.com/tidwall/gjson"
"github.com/tidwall/tile38/geojson/geohash"
@ -14,7 +12,7 @@ import (
type Feature struct {
Geometry Object
BBox *BBox
idprops []byte // raw id and properties combined
idprops string // raw id and properties seperated by a '\0'
}
func fillFeatureMap(json string) (Feature, error) {
@ -94,30 +92,25 @@ func (g Feature) MarshalJSON() ([]byte, error) {
return []byte(g.JSON()), nil
}
func (g Feature) getRaw() (id, props []byte) {
func (g Feature) getRaw() (id, props string) {
if len(g.idprops) == 0 {
return nil, nil
return "", ""
}
buf := g.idprops
rd, err := gzip.NewReader(bytes.NewReader(buf))
if err == nil {
buf, _ = ioutil.ReadAll(rd)
}
switch buf[0] {
switch g.idprops[0] {
default:
lnp := int(buf[0]) + 1
return buf[1:lnp], buf[lnp:]
lnp := int(g.idprops[0]) + 1
return g.idprops[1:lnp], g.idprops[lnp:]
case 255:
lnp := int(binary.LittleEndian.Uint64([]byte(buf[1:9]))) + 9
return buf[9:lnp], buf[lnp:]
lnp := int(binary.LittleEndian.Uint64([]byte(g.idprops[1:9]))) + 9
return g.idprops[9:lnp], g.idprops[lnp:]
}
}
func makeCompositeRaw(idRaw, propsRaw string) []byte {
func makeCompositeRaw(idRaw, propsRaw string) string {
idRaw = stripWhitespace(idRaw)
propsRaw = stripWhitespace(propsRaw)
if len(idRaw) == 0 && len(propsRaw) == 0 {
return nil
return ""
}
var raw []byte
if len(idRaw) > 0xFF-1 {
@ -132,16 +125,7 @@ func makeCompositeRaw(idRaw, propsRaw string) []byte {
copy(raw[1:], idRaw)
copy(raw[len(idRaw)+1:], propsRaw)
}
if len(raw) < 256 {
return raw
}
var buf bytes.Buffer
gbuf := gzip.NewWriter(&buf)
gbuf.Write(raw)
gbuf.Close()
tight := make([]byte, len(buf.Bytes()))
copy(tight, buf.Bytes())
return tight
return string(raw)
}
// JSON is the json representation of the object. This might not be exactly the same as the original.
@ -151,13 +135,13 @@ func (g Feature) JSON() string {
buf.WriteString(g.Geometry.JSON())
g.BBox.write(&buf)
idRaw, propsRaw := g.getRaw()
if len(propsRaw) != 0 {
if propsRaw != "" {
buf.WriteString(`,"properties":`)
buf.Write(propsRaw)
buf.WriteString(propsRaw)
}
if len(idRaw) != 0 {
if idRaw != "" {
buf.WriteString(`,"id":`)
buf.Write(idRaw)
buf.WriteString(idRaw)
}
buf.WriteByte('}')
return buf.String()

View File

@ -1,9 +1,6 @@
package geojson
import (
"fmt"
"testing"
)
import "testing"
func TestFeature(t *testing.T) {
testJSON(t, `{
@ -117,7 +114,5 @@ func TestComplexFeature(t *testing.T) {
if err != nil {
t.Fatal(err)
}
return
println(len(o.(Feature).idprops), cap(o.(Feature).idprops))
fmt.Printf("%v\n", o.JSON())
o = o
}