78 lines
2.1 KiB
Go
78 lines
2.1 KiB
Go
package container
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import (
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"fmt"
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"github.com/TrueCloudLab/frostfs-node/pkg/morph/client"
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"github.com/TrueCloudLab/frostfs-node/pkg/morph/event"
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"github.com/nspcc-dev/neo-go/pkg/core/state"
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"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
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)
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// StartEstimation structure of container.StartEstimation notification from
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// morph chain.
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type StartEstimation struct {
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epoch uint64
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}
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// StopEstimation structure of container.StopEstimation notification from
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// morph chain.
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type StopEstimation struct {
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epoch uint64
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}
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// MorphEvent implements Neo:Morph Event interface.
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func (StartEstimation) MorphEvent() {}
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// MorphEvent implements Neo:Morph Event interface.
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func (StopEstimation) MorphEvent() {}
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// Epoch returns epoch value for which to start container size estimation.
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func (s StartEstimation) Epoch() uint64 { return s.epoch }
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// Epoch returns epoch value for which to stop container size estimation.
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func (s StopEstimation) Epoch() uint64 { return s.epoch }
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// ParseStartEstimation from notification into container event structure.
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func ParseStartEstimation(e *state.ContainedNotificationEvent) (event.Event, error) {
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params, err := event.ParseStackArray(e)
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if err != nil {
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return nil, fmt.Errorf("could not parse stack items from notify event: %w", err)
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}
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epoch, err := parseEstimation(params)
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if err != nil {
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return nil, err
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}
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return StartEstimation{epoch: epoch}, nil
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}
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// ParseStopEstimation from notification into container event structure.
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func ParseStopEstimation(e *state.ContainedNotificationEvent) (event.Event, error) {
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params, err := event.ParseStackArray(e)
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if err != nil {
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return nil, fmt.Errorf("could not parse stack items from notify event: %w", err)
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}
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epoch, err := parseEstimation(params)
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if err != nil {
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return nil, err
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}
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return StopEstimation{epoch: epoch}, nil
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}
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func parseEstimation(params []stackitem.Item) (uint64, error) {
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if ln := len(params); ln != 1 {
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return 0, event.WrongNumberOfParameters(1, ln)
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}
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// parse container
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epoch, err := client.IntFromStackItem(params[0])
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if err != nil {
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return 0, fmt.Errorf("could not get estimation epoch: %w", err)
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}
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return uint64(epoch), nil
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}
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