// will return during reading. It returns -1 for unlimited
// data.
func (p *PutObjReader) Size() int64 {
	return p.Reader.Size()
}

// MD5CurrentHexString returns the current MD5Sum or encrypted MD5Sum
// as a hex encoded string
func (p *PutObjReader) MD5CurrentHexString() string {
	md5sumCurr := p.rawReader.MD5Current()
	var appendHyphen bool
	// md5sumcurr is not empty in two scenarios

		if writers[i] == nil {
			onlineDisks[i] = nil
		}
	}

	// Rename temporary part file to its final location.
	partPath := pathJoin(uploadIDPath, fi.DataDir, partSuffix)

	md5hex := r.MD5CurrentHexString()
	if opts.PreserveETag != "" {
		md5hex = opts.PreserveETag
	}

	var index []byte
	if opts.IndexCB != nil {
		index = opts.IndexCB()
	}

	actualSize := data.ActualSize()

		partsMetadata[i].Versioned = opts.Versioned || opts.VersionSuspended
		partsMetadata[i].Checksum = fi.Checksum
	}

	userDefined["etag"] = r.MD5CurrentHexString()
	if opts.PreserveETag != "" {
		if !opts.ReplicationRequest {
			userDefined["etag"] = opts.PreserveETag
		} else if kind != crypto.S3 {
			// if we have a replication request