frostfs-node/pkg/local_object_storage/metabase/v2/control.go
Alex Vanin 9d4fba923c [] Create metabase instance as storage engine component
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00

42 lines
964 B
Go

package meta
import (
"fmt"
"os"
"path"
"go.etcd.io/bbolt"
"go.uber.org/zap"
)
// Open boltDB instance for metabase.
func (db *DB) Open() error {
err := os.MkdirAll(path.Dir(db.info.Path), db.info.Permission)
if err != nil {
return fmt.Errorf("can't create dir %s for metabase: %w", db.info.Path, err)
}
db.log.Debug("created directory for Metabase", zap.String("path", db.info.Path))
db.boltDB, err = bbolt.Open(db.info.Path, db.info.Permission, db.boltOptions)
if err != nil {
return fmt.Errorf("can't open boltDB database: %w", err)
}
db.log.Debug("opened boltDB instance for Metabase")
return nil
}
// Init initializes metabase, however metabase doesn't need extra preparations,
// so it implemented to satisfy interface of storage engine components.
func (db *DB) Init() error {
db.log.Debug("Metabase has been initialized")
return nil
}
// Close closes boltDB instance.
func (db *DB) Close() error {
return db.boltDB.Close()
}