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ledger.go
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ledger.go
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// Copyright (c) 2022 Gobalsky Labs Limited
//
// Use of this software is governed by the Business Source License included
// in the LICENSE.DATANODE file and at https://www.mariadb.com/bsl11.
//
// Change Date: 18 months from the later of the date of the first publicly
// available Distribution of this version of the repository, and 25 June 2022.
//
// On the date above, in accordance with the Business Source License, use
// of this software will be governed by version 3 or later of the GNU General
// Public License.
package service
import (
"context"
"code.vegaprotocol.io/vega/datanode/entities"
"code.vegaprotocol.io/vega/datanode/utils"
"code.vegaprotocol.io/vega/logging"
"code.vegaprotocol.io/vega/protos/vega"
)
type ledgerStore interface {
Flush(ctx context.Context) ([]entities.LedgerEntry, error)
Add(le entities.LedgerEntry) error
}
type Ledger struct {
store ledgerStore
log *logging.Logger
transferResponses []*vega.TransferResponse
observer utils.Observer[*vega.TransferResponse]
}
func NewLedger(store ledgerStore, log *logging.Logger) *Ledger {
return &Ledger{
store: store,
log: log,
observer: utils.NewObserver[*vega.TransferResponse]("ledger", log, 0, 0),
}
}
func (l *Ledger) Flush(ctx context.Context) error {
_, err := l.store.Flush(ctx)
if err != nil {
return err
}
l.observer.Notify(l.transferResponses)
l.transferResponses = []*vega.TransferResponse{}
return nil
}
func (l *Ledger) AddLedgerEntry(le entities.LedgerEntry) error {
return l.store.Add(le)
}
func (l *Ledger) AddTransferResponse(le *vega.TransferResponse) {
l.transferResponses = append(l.transferResponses, le)
}
func (l *Ledger) Observe(ctx context.Context, retries int) (<-chan []*vega.TransferResponse, uint64) {
ch, ref := l.observer.Observe(ctx,
retries,
func(tr *vega.TransferResponse) bool {
return true
})
return ch, ref
}
func (r *Ledger) GetSubscribersCount() int32 {
return r.observer.GetSubscribersCount()
}