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|
package rdb
import (
"bytes"
"fmt"
"github.com/cupcake/rdb"
)
func Dump(obj interface{}) ([]byte, error) {
var buf bytes.Buffer
e := rdb.NewEncoder(&buf)
switch v := obj.(type) {
case String:
e.EncodeType(rdb.TypeString)
e.EncodeString(v)
case Hash:
e.EncodeType(rdb.TypeHash)
e.EncodeLength(uint32(len(v)))
for i := 0; i < len(v); i++ {
e.EncodeString(v[i].Field)
e.EncodeString(v[i].Value)
}
case List:
e.EncodeType(rdb.TypeList)
e.EncodeLength(uint32(len(v)))
for i := 0; i < len(v); i++ {
e.EncodeString(v[i])
}
case Set:
e.EncodeType(rdb.TypeSet)
e.EncodeLength(uint32(len(v)))
for i := 0; i < len(v); i++ {
e.EncodeString(v[i])
}
case ZSet:
e.EncodeType(rdb.TypeZSet)
e.EncodeLength(uint32(len(v)))
for i := 0; i < len(v); i++ {
e.EncodeString(v[i].Member)
e.EncodeFloat(v[i].Score)
}
default:
return nil, fmt.Errorf("invalid dump type %T", obj)
}
e.EncodeDumpFooter()
return buf.Bytes(), nil
}
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