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package storage
import (	"fmt"	"net/url"	"sync"
	"github.com/ije/gox/utils")
type DataBase interface {	Get(key string) ([]byte, error)	Put(key string, value []byte) error	Delete(key string) error	Close() error}
type DBDriver interface {	Open(config string, options url.Values) (conn DataBase, err error)}
var dbDrivers = sync.Map{}
func OpenDB(url string) (DataBase, error) {	name, addr := utils.SplitByFirstByte(url, ':')	db, ok := dbDrivers.Load(name)	if ok {		root, options, err := parseConfigUrl(addr)		if err == nil {			return db.(DBDriver).Open(root, options)		}	}	return nil, fmt.Errorf("unregistered db '%s'", name)}
func RegisterDB(name string, driver DBDriver) error {	_, ok := dbDrivers.Load(name)	if ok {		return fmt.Errorf("db driver '%s' has been registered", name)	}
	dbDrivers.Store(name, driver)	return nil}