frostfs-sdk-go/container/announcement.go

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package container
import (
"errors"
"fmt"
"github.com/nspcc-dev/neofs-api-go/v2/container"
"github.com/nspcc-dev/neofs-api-go/v2/refs"
cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
)
// UsedSpaceAnnouncement is an announcement message used by storage nodes to
// estimate actual container sizes.
type UsedSpaceAnnouncement container.UsedSpaceAnnouncement
// NewAnnouncement initialize empty UsedSpaceAnnouncement message.
//
// Defaults:
// - epoch: 0;
// - usedSpace: 0;
// - cid: nil.
func NewAnnouncement() *UsedSpaceAnnouncement {
return NewAnnouncementFromV2(new(container.UsedSpaceAnnouncement))
}
// NewAnnouncementFromV2 wraps protocol dependent version of
// UsedSpaceAnnouncement message.
//
// Nil container.UsedSpaceAnnouncement converts to nil.
func NewAnnouncementFromV2(v *container.UsedSpaceAnnouncement) *UsedSpaceAnnouncement {
return (*UsedSpaceAnnouncement)(v)
}
// Epoch of the announcement.
func (a *UsedSpaceAnnouncement) Epoch() uint64 {
return (*container.UsedSpaceAnnouncement)(a).GetEpoch()
}
// SetEpoch sets announcement epoch value.
func (a *UsedSpaceAnnouncement) SetEpoch(epoch uint64) {
(*container.UsedSpaceAnnouncement)(a).SetEpoch(epoch)
}
// ContainerID of the announcement.
func (a *UsedSpaceAnnouncement) ContainerID() (cID cid.ID, isSet bool) {
v2 := (*container.UsedSpaceAnnouncement)(a)
cidV2 := v2.GetContainerID()
if cidV2 == nil {
return
}
_ = cID.ReadFromV2(*cidV2)
isSet = true
return
}
// SetContainerID sets announcement container value.
func (a *UsedSpaceAnnouncement) SetContainerID(cnr cid.ID) {
var cidV2 refs.ContainerID
cnr.WriteToV2(&cidV2)
(*container.UsedSpaceAnnouncement)(a).SetContainerID(&cidV2)
}
// UsedSpace in container.
func (a *UsedSpaceAnnouncement) UsedSpace() uint64 {
return (*container.UsedSpaceAnnouncement)(a).GetUsedSpace()
}
// SetUsedSpace sets used space value by specified container.
func (a *UsedSpaceAnnouncement) SetUsedSpace(value uint64) {
(*container.UsedSpaceAnnouncement)(a).SetUsedSpace(value)
}
// ToV2 returns protocol dependent version of UsedSpaceAnnouncement message.
//
// Nil UsedSpaceAnnouncement converts to nil.
func (a *UsedSpaceAnnouncement) ToV2() *container.UsedSpaceAnnouncement {
return (*container.UsedSpaceAnnouncement)(a)
}
// Marshal marshals UsedSpaceAnnouncement into a protobuf binary form.
func (a *UsedSpaceAnnouncement) Marshal() ([]byte, error) {
return a.ToV2().StableMarshal(nil), nil
}
var errCIDNotSet = errors.New("container ID is not set")
// Unmarshal unmarshals protobuf binary representation of UsedSpaceAnnouncement.
func (a *UsedSpaceAnnouncement) Unmarshal(data []byte) error {
err := a.ToV2().Unmarshal(data)
if err != nil {
return err
}
// format checks
var cID cid.ID
cidV2 := a.ToV2().GetContainerID()
if cidV2 == nil {
return errCIDNotSet
}
err = cID.ReadFromV2(*cidV2)
if err != nil {
return fmt.Errorf("could not convert V2 container ID: %w", err)
}
return nil
}