frostfs-node/pkg/morph/event/netmap/epoch.go
Evgenii Stratonikov 1c12f23b84 [#1541] morph/event: Simplify netmap contract event parsing
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2024-12-06 10:26:39 +00:00

47 lines
1.1 KiB
Go

package netmap
import (
"git.frostfs.info/TrueCloudLab/frostfs-contract/rpcclient/netmap"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/event"
"github.com/nspcc-dev/neo-go/pkg/core/state"
"github.com/nspcc-dev/neo-go/pkg/util"
)
// NewEpoch is a new epoch Neo:Morph event.
type NewEpoch struct {
Num uint64
// Hash is used in notary environmental
// for calculating unique but same for
// all notification receivers values.
Hash util.Uint256
}
// MorphEvent implements Neo:Morph Event interface.
func (NewEpoch) MorphEvent() {}
// EpochNumber returns new epoch number.
func (s NewEpoch) EpochNumber() uint64 {
return s.Num
}
// TxHash returns hash of the TX with new epoch
// notification.
func (s NewEpoch) TxHash() util.Uint256 {
return s.Hash
}
// ParseNewEpoch is a parser of new epoch notification event.
//
// Result is type of NewEpoch.
func ParseNewEpoch(e *state.ContainedNotificationEvent) (event.Event, error) {
var nee netmap.NewEpochEvent
if err := nee.FromStackItem(e.Item); err != nil {
return nil, err
}
return NewEpoch{
Num: uint64(nee.Epoch.Uint64()),
Hash: e.Container,
}, nil
}