frostfs-sdk-go/object/erasure_code.go

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package object
import (
"errors"
"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
refs "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/refs"
oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
)
// ECHeader represents erasure coding header.
type ECHeader struct {
parent oid.ID
index uint32
total uint32
header []byte
headerLength uint32
}
// NewECHeader constructs new erasure coding header.
func NewECHeader(parent oid.ID, index, total uint32, header []byte, headerLength uint32) *ECHeader {
return &ECHeader{
parent: parent,
index: index,
total: total,
header: header,
headerLength: headerLength,
}
}
// WriteToV2 converts SDK structure to v2-api one.
func (e *ECHeader) WriteToV2(h *object.ECHeader) {
var parent refs.ObjectID
e.parent.WriteToV2(&parent)
h.Parent = &parent
h.Index = e.index
h.Total = e.total
h.Header = e.header
h.HeaderLength = e.headerLength
}
// ReadFromV2 converts v2-api structure to SDK one.
func (e *ECHeader) ReadFromV2(h *object.ECHeader) error {
if h == nil {
return nil
}
if h.Parent == nil {
return errors.New("empty parent")
}
_ = e.parent.ReadFromV2(*h.Parent)
e.index = h.Index
e.total = h.Total
e.header = h.Header
e.headerLength = h.HeaderLength
return nil
}
func (o *Object) ECHeader() *ECHeader {
ec := (*object.Object)(o).GetHeader().GetEC()
if ec == nil {
return nil
}
h := new(ECHeader)
_ = h.ReadFromV2(ec)
return h
}
func (o *Object) SetECHeader(ec *ECHeader) {
o.setHeaderField(func(h *object.Header) {
if ec == nil {
h.SetEC(nil)
return
}
v2 := new(object.ECHeader)
ec.WriteToV2(v2)
h.SetEC(v2)
})
}
func (e *ECHeader) Parent() oid.ID {
return e.parent
}
func (e *ECHeader) SetParent(id oid.ID) {
e.parent = id
}
func (e *ECHeader) Index() uint32 {
return e.index
}
func (e *ECHeader) SetIndex(i uint32) {
e.index = i
}
func (e *ECHeader) Total() uint32 {
return e.total
}
func (e *ECHeader) SetTotal(i uint32) {
e.total = i
}
func (e *ECHeader) Header() []byte {
return e.header
}
func (e *ECHeader) SetHeader(header []byte) {
e.header = header
}
func (e *ECHeader) HeaderLength() uint32 {
return e.headerLength
}
func (e *ECHeader) SetHeaderLength(l uint32) {
e.headerLength = l
}