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firestorm TermFreqRow.ParseKey() func

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This commit is contained in:
Steve Yen 2016-01-06 15:32:09 -08:00
parent 83cd8da394
commit 8389027ae8
1 changed files with 19 additions and 12 deletions
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31
index/firestorm/termfreq.go
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@ -62,32 +62,39 @@ func InitTermFreqRow(tfr *TermFreqRow, field uint16, term []byte, docID []byte,
func NewTermFreqRowKV(key, value []byte) (*TermFreqRow, error) {
rv := TermFreqRow{}
err := rv.ParseKey(key)
if err != nil {
return nil, err
}
err = rv.value.Unmarshal(value)
if err != nil {
return nil, err
}
return &rv, nil
}
func (tfr *TermFreqRow) ParseKey(key []byte) error {
keyLen := len(key)
if keyLen < 3 {
return nil, fmt.Errorf("invalid term frequency key, no valid field")
return fmt.Errorf("invalid term frequency key, no valid field")
}
rv.field = binary.LittleEndian.Uint16(key[1:3])
tfr.field = binary.LittleEndian.Uint16(key[1:3])
termStartPos := 3
termEndPos := bytes.IndexByte(key[termStartPos:], ByteSeparator)
if termEndPos < 0 {
return nil, fmt.Errorf("invalid term frequency key, no byte separator terminating term")
return fmt.Errorf("invalid term frequency key, no byte separator terminating term")
}
rv.term = key[termStartPos : termStartPos+termEndPos]
tfr.term = key[termStartPos : termStartPos+termEndPos]
docStartPos := termStartPos + termEndPos + 1
docEndPos := bytes.IndexByte(key[docStartPos:], ByteSeparator)
rv.docID = key[docStartPos : docStartPos+docEndPos]
tfr.docID = key[docStartPos : docStartPos+docEndPos]
docNumPos := docStartPos + docEndPos + 1
rv.docNum, _ = binary.Uvarint(key[docNumPos:])
tfr.docNum, _ = binary.Uvarint(key[docNumPos:])
err := rv.value.Unmarshal(value)
if err != nil {
return nil, err
}
return &rv, nil
return nil
}
func (tfr *TermFreqRow) KeySize() int {