81 lines
2.4 KiB
Go
81 lines
2.4 KiB
Go
// VulcanizeDB
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// Copyright © 2019 Vulcanize
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package event
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import (
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"github.com/ethereum/go-ethereum/core/types"
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log "github.com/sirupsen/logrus"
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"github.com/vulcanize/vulcanizedb/libraries/shared/constants"
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"github.com/vulcanize/vulcanizedb/libraries/shared/transformer"
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"github.com/vulcanize/vulcanizedb/pkg/core"
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"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
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)
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type Transformer struct {
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Config transformer.EventTransformerConfig
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Converter Converter
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Repository Repository
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}
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func (transformer Transformer) NewTransformer(db *postgres.DB) transformer.EventTransformer {
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transformer.Repository.SetDB(db)
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return transformer
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}
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func (transformer Transformer) Execute(logs []types.Log, header core.Header, recheckHeaders constants.TransformerExecution) error {
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transformerName := transformer.Config.TransformerName
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config := transformer.Config
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if len(logs) < 1 {
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err := transformer.Repository.MarkHeaderChecked(header.Id)
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if err != nil {
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log.Printf("Error marking header as checked in %v: %v", transformerName, err)
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return err
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}
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return nil
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}
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entities, err := transformer.Converter.ToEntities(config.ContractAbi, logs)
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if err != nil {
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log.Printf("Error converting logs to entities in %v: %v", transformerName, err)
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return err
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}
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models, err := transformer.Converter.ToModels(entities)
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if err != nil {
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log.Printf("Error converting entities to models in %v: %v", transformerName, err)
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return err
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}
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err = transformer.Repository.Create(header.Id, models)
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if err != nil {
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log.Printf("Error persisting %v record: %v", transformerName, err)
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return err
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}
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return nil
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}
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func (transformer Transformer) GetName() string {
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return transformer.Config.TransformerName
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}
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func (transformer Transformer) GetConfig() transformer.EventTransformerConfig {
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return transformer.Config
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}
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