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oracle_data.go
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oracle_data.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 sqlsubscribers
import (
"context"
"github.com/pkg/errors"
"github.com/zeta-protocol/zeta/core/events"
"github.com/zeta-protocol/zeta/datanode/entities"
zetapb "github.com/zeta-protocol/zeta/protos/zeta"
)
type OracleDataEvent interface {
events.Event
OracleData() zetapb.OracleData
}
type OracleDataStore interface {
Add(context.Context, *entities.OracleData) error
}
type OracleData struct {
subscriber
store OracleDataStore
}
func NewOracleData(store OracleDataStore) *OracleData {
return &OracleData{
store: store,
}
}
func (od *OracleData) Types() []events.Type {
return []events.Type{events.OracleDataEvent}
}
func (od *OracleData) Push(ctx context.Context, evt events.Event) error {
return od.consume(ctx, evt.(OracleDataEvent))
}
func (od *OracleData) consume(ctx context.Context, event OracleDataEvent) error {
data := event.OracleData()
entity, err := entities.OracleDataFromProto(&data, entities.TxHash(event.TxHash()), od.zetaTime, event.Sequence())
if err != nil {
errors.Wrap(err, "converting oracle data proto to database entity failed")
}
return errors.Wrap(od.store.Add(ctx, entity), "inserting oracle data proto to SQL store failed")
}