137 lines
2.9 KiB
Go
137 lines
2.9 KiB
Go
package ledis
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import (
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"errors"
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"fmt"
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"strconv"
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"github.com/siddontang/go/hack"
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)
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var errInvalidEvent = errors.New("invalid event")
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func formatEventKey(buf []byte, k []byte) ([]byte, error) {
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if len(k) < 2 {
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return nil, errInvalidEvent
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}
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buf = append(buf, fmt.Sprintf("DB:%2d ", k[0])...)
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buf = append(buf, fmt.Sprintf("%s ", TypeName[k[1]])...)
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db := new(DB)
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index, _, err := decodeDBIndex(k)
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if err != nil {
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return nil, err
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}
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db.setIndex(index)
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//to do format at respective place
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switch k[1] {
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case KVType:
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key, err := db.decodeKVKey(k)
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if err != nil {
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return nil, err
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}
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buf = strconv.AppendQuote(buf, hack.String(key))
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case HashType:
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key, field, err := db.hDecodeHashKey(k)
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if err != nil {
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return nil, err
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}
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buf = strconv.AppendQuote(buf, hack.String(key))
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buf = append(buf, ' ')
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buf = strconv.AppendQuote(buf, hack.String(field))
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case HSizeType:
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key, err := db.hDecodeSizeKey(k)
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if err != nil {
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return nil, err
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}
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buf = strconv.AppendQuote(buf, hack.String(key))
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case ListType:
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key, seq, err := db.lDecodeListKey(k)
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if err != nil {
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return nil, err
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}
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buf = strconv.AppendQuote(buf, hack.String(key))
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buf = append(buf, ' ')
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buf = strconv.AppendInt(buf, int64(seq), 10)
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case LMetaType:
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key, err := db.lDecodeMetaKey(k)
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if err != nil {
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return nil, err
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}
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buf = strconv.AppendQuote(buf, hack.String(key))
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case ZSetType:
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key, m, err := db.zDecodeSetKey(k)
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if err != nil {
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return nil, err
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}
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buf = strconv.AppendQuote(buf, hack.String(key))
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buf = append(buf, ' ')
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buf = strconv.AppendQuote(buf, hack.String(m))
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case ZSizeType:
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key, err := db.zDecodeSizeKey(k)
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if err != nil {
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return nil, err
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}
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buf = strconv.AppendQuote(buf, hack.String(key))
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case ZScoreType:
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key, m, score, err := db.zDecodeScoreKey(k)
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if err != nil {
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return nil, err
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}
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buf = strconv.AppendQuote(buf, hack.String(key))
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buf = append(buf, ' ')
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buf = strconv.AppendQuote(buf, hack.String(m))
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buf = append(buf, ' ')
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buf = strconv.AppendInt(buf, score, 10)
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case SetType:
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key, member, err := db.sDecodeSetKey(k)
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if err != nil {
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return nil, err
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}
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buf = strconv.AppendQuote(buf, hack.String(key))
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buf = append(buf, ' ')
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buf = strconv.AppendQuote(buf, hack.String(member))
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case SSizeType:
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key, err := db.sDecodeSizeKey(k)
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if err != nil {
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return nil, err
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}
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buf = strconv.AppendQuote(buf, hack.String(key))
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case ExpTimeType:
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tp, key, t, err := db.expDecodeTimeKey(k)
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if err != nil {
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return nil, err
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}
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buf = append(buf, TypeName[tp]...)
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buf = append(buf, ' ')
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buf = strconv.AppendQuote(buf, hack.String(key))
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buf = append(buf, ' ')
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buf = strconv.AppendInt(buf, t, 10)
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case ExpMetaType:
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tp, key, err := db.expDecodeMetaKey(k)
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if err != nil {
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return nil, err
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}
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buf = append(buf, TypeName[tp]...)
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buf = append(buf, ' ')
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buf = strconv.AppendQuote(buf, hack.String(key))
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default:
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return nil, errInvalidEvent
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}
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return buf, nil
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}
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