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main.go
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main.go
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package main
import (
"encoding/binary"
"fmt"
"github.com/geange/lucene-go/codecs/simpletext"
"github.com/geange/lucene-go/core/document"
"github.com/geange/lucene-go/core/index"
"github.com/geange/lucene-go/core/store"
"github.com/geange/lucene-go/core/types"
"github.com/geange/lucene-go/core/util"
)
func main() {
//index.NewSegmentReadState()
dir, err := store.NewNIOFSDirectory("data")
if err != nil {
panic(err)
}
format := simpletext.NewPointsFormat()
version := util.NewVersion(8, 11, 0)
minVersion := util.NewVersion(8, 0, 0)
segment := index.NewSegmentInfo(dir, version, minVersion, "0", 10000,
false, nil, map[string]string{}, []byte("1"), map[string]string{}, nil)
fieldInfo := document.NewFieldInfo(
"field1",
1,
false,
false,
true,
document.INDEX_OPTIONS_DOCS_AND_FREQS_AND_POSITIONS_AND_OFFSETS,
document.DOC_VALUES_TYPE_NONE,
-1,
map[string]string{},
2,
2,
4,
true,
)
fieldInfos := index.NewFieldInfos([]*document.FieldInfo{fieldInfo})
readState := index.NewSegmentReadState(dir, segment, fieldInfos, nil, "")
reader, err := format.FieldsReader(readState)
if err != nil {
panic(err)
}
values, err := reader.GetValues("field1")
if err != nil {
panic(err)
}
values.Intersect(&types.BytesVisitor{
VisitFn: func(docID int) error {
return nil
},
VisitLeafFn: func(docID int, packedValue []byte) error {
fmt.Printf("docID: %d %d,%d\n",
docID, binary.BigEndian.Uint32(packedValue[:4]), binary.BigEndian.Uint32(packedValue[4:]))
return nil
},
CompareFn: func(minPackedValue, maxPackedValue []byte) types.Relation {
return types.CELL_CROSSES_QUERY
},
GrowFn: func(count int) {
},
})
}