forked from TrueCloudLab/frostfs-node
96 lines
2.4 KiB
Go
96 lines
2.4 KiB
Go
package blobstor
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import (
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"fmt"
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"os"
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"github.com/klauspost/compress/zstd"
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"github.com/nspcc-dev/neofs-node/pkg/core/object"
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storagelog "github.com/nspcc-dev/neofs-node/pkg/local_object_storage/internal/log"
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objectSDK "github.com/nspcc-dev/neofs-sdk-go/object"
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oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
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)
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// PutPrm groups the parameters of Put operation.
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type PutPrm struct {
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rwObject
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}
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// PutRes groups the resulting values of Put operation.
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type PutRes struct {
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roBlobovniczaID
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}
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// Put saves the object in BLOB storage.
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//
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// If object is "big", BlobStor saves the object in shallow dir.
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// Otherwise, BlobStor saves the object in blobonicza. In this
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// case the identifier of blobovnicza is returned.
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//
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// Returns any error encountered that
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// did not allow to completely save the object.
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func (b *BlobStor) Put(prm PutPrm) (PutRes, error) {
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// marshal object
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data, err := prm.obj.Marshal()
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if err != nil {
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return PutRes{}, fmt.Errorf("could not marshal the object: %w", err)
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}
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return b.PutRaw(object.AddressOf(prm.obj), data, b.NeedsCompression(prm.obj))
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}
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// NeedsCompression returns true if the object should be compressed.
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// For an object to be compressed 2 conditions must hold:
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// 1. Compression is enabled in settings.
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// 2. Object MIME Content-Type is allowed for compression.
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func (b *BlobStor) NeedsCompression(obj *objectSDK.Object) bool {
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return b.cfg.CConfig.NeedsCompression(obj)
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}
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// PutRaw saves an already marshaled object in BLOB storage.
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func (b *BlobStor) PutRaw(addr oid.Address, data []byte, compress bool) (PutRes, error) {
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big := b.isBig(data)
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if big {
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var err error
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if compress {
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err = b.fsTree.PutStream(addr, func(f *os.File) error {
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enc, _ := zstd.NewWriter(f) // nil error if no options are provided
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if _, err := enc.Write(data); err != nil {
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return err
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}
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return enc.Close()
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})
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} else {
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err = b.fsTree.Put(addr, data)
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}
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if err != nil {
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return PutRes{}, err
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}
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storagelog.Write(b.log, storagelog.AddressField(addr), storagelog.OpField("fstree PUT"))
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return PutRes{}, nil
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}
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if compress {
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data = b.CConfig.Compress(data)
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}
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// save object in blobovnicza
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res, err := b.blobovniczas.Put(addr, data)
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if err != nil {
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return PutRes{}, err
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}
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return PutRes{
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roBlobovniczaID: roBlobovniczaID{
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blobovniczaID: res,
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},
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}, nil
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}
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// checks if object is "big".
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func (b *BlobStor) isBig(data []byte) bool {
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return uint64(len(data)) > b.smallSizeLimit
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}
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