frostfs-node/pkg/local_object_storage/shard/put.go
Alex Vanin 5fc54386b0 [#222] Update Put method in shard
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
2020-12-11 17:19:37 +03:00

66 lines
1.6 KiB
Go

package shard
import (
"github.com/nspcc-dev/neofs-node/pkg/core/object"
"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/blobstor"
"github.com/pkg/errors"
)
// PutPrm groups the parameters of Put operation.
type PutPrm struct {
obj *object.Object
}
// PutRes groups resulting values of Put operation.
type PutRes struct{}
// WithObject is a Put option to set object to save.
func (p *PutPrm) WithObject(obj *object.Object) *PutPrm {
if p != nil {
p.obj = obj
}
return p
}
// Put saves the object in shard.
//
// Returns any error encountered that
// did not allow to completely save the object.
func (s *Shard) Put(prm *PutPrm) (*PutRes, error) {
putPrm := new(blobstor.PutPrm) // form Put parameters
putPrm.SetObject(prm.obj)
// exist check are not performed there, these checks should be executed
// ahead of `Put` by storage engine
var (
err error
res *blobstor.PutRes
)
if s.hasWriteCache() {
res, err = s.writeCache.Put(putPrm)
if err != nil {
s.log.Debug("can't put message to writeCache, trying to blobStor")
res = nil // just in case
}
}
// res == nil if there is no writeCache or writeCache.Put has been failed
if res == nil {
if res, err = s.blobStor.Put(putPrm); err != nil {
return nil, errors.Wrap(err, "could not put object to BLOB storage")
}
}
// put to metabase
if err := s.metaBase.Put(prm.obj, res.BlobovniczaID()); err != nil {
// may we need to handle this case in a special way
// since the object has been successfully written to BlobStor
return nil, errors.Wrap(err, "could not put object to metabase")
}
return nil, nil
}