73 lines
1.5 KiB
Go
73 lines
1.5 KiB
Go
package blobstor
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import (
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"io/ioutil"
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"os"
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"path"
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objectSDK "github.com/nspcc-dev/neofs-api-go/pkg/object"
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"github.com/pkg/errors"
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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 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 nil, errors.Wrap(err, "could not marshal the object")
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}
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big := b.isBig(data)
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// compress object data
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data = b.compressor(data)
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if big {
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// save object in shallow dir
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return new(PutRes), b.fsTree.put(prm.obj.Address(), data)
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}
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// save object in blobovnicza
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res, err := b.blobovniczas.put(prm.obj.Address(), data)
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if err != nil {
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return nil, 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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func (t *fsTree) put(addr *objectSDK.Address, data []byte) error {
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p := t.treePath(addr)
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if err := os.MkdirAll(path.Dir(p), t.Permissions); err != nil {
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return err
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}
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return ioutil.WriteFile(p, data, t.Permissions)
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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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