// 返回数据库中得所有key/value值
func getAll(db *kv.DB) map[string]string {
m := map[string]string{}
enum, err := db.SeekFirst()
if err == io.EOF {
fmt.Println("Empty Database")
return m
}
for {
k, v, err := enum.Next()
if err == io.EOF {
fmt.Printf("End of Database \n")
return m
}
m[string(k)] = string(v)
// fmt.Printf("%s = %s \n", string(k), string(v))
}
return m
}
func dumpBucket(w io.Writer, db *kv.DB) (err error) {
//log.Printf("dumping %s", db)
io.WriteString(w, `{"name": "`+db.Name()+`", "records": [`)
enc := json.NewEncoder(w)
enum, e := db.SeekFirst()
if e != nil {
if e != io.EOF {
err = e
log.Printf("error getting first: %s", err)
}
return
}
vi := new(weedutils.ValInfo)
for {
k, v, err := enum.Next()
if err != nil {
if err != io.EOF {
log.Printf("error getting next: %s", err)
}
break
}
if err = vi.Decode(v); err != nil {
log.Printf("error decoding %s: %s", v, err)
continue
}
fmt.Fprintf(w, `{"object": %q, "value": `, k)
if err = enc.Encode(vi); err != nil {
log.Printf("error printing %v to json: %s", vi, err)
continue
}
io.WriteString(w, "},\n")
}
io.WriteString(w, "]},\n")
io.WriteString(w, "]},\n")
return nil
}