forked from cerc-io/ipld-eth-server
79 lines
2.3 KiB
Go
79 lines
2.3 KiB
Go
// Copyright 2018 Vulcanize
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package frob
|
|
|
|
import (
|
|
"log"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
|
|
"github.com/vulcanize/vulcanizedb/pkg/core"
|
|
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
|
|
"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
|
|
)
|
|
|
|
type FrobTransformer struct {
|
|
Config shared.TransformerConfig
|
|
Converter Converter
|
|
Fetcher shared.LogFetcher
|
|
Repository Repository
|
|
}
|
|
|
|
type FrobTransformerInitializer struct {
|
|
Config shared.TransformerConfig
|
|
}
|
|
|
|
func (initializer FrobTransformerInitializer) NewFrobTransformer(db *postgres.DB, blockChain core.BlockChain) shared.Transformer {
|
|
converter := FrobConverter{}
|
|
fetcher := shared.NewFetcher(blockChain)
|
|
repository := NewFrobRepository(db)
|
|
return FrobTransformer{
|
|
Config: initializer.Config,
|
|
Converter: converter,
|
|
Fetcher: fetcher,
|
|
Repository: repository,
|
|
}
|
|
}
|
|
|
|
func (transformer FrobTransformer) Execute() error {
|
|
missingHeaders, err := transformer.Repository.MissingHeaders(transformer.Config.StartingBlockNumber, transformer.Config.EndingBlockNumber)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
log.Printf("Fetching frob event logs for %d headers \n", len(missingHeaders))
|
|
for _, header := range missingHeaders {
|
|
topics := [][]common.Hash{{common.HexToHash(shared.FrobSignature)}}
|
|
matchingLogs, err := transformer.Fetcher.FetchLogs(FrobConfig.ContractAddress, topics, header.BlockNumber)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
for _, log := range matchingLogs {
|
|
entity, err := transformer.Converter.ToEntity(FrobConfig.ContractAddress, FrobConfig.ContractAbi, log)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
model, err := transformer.Converter.ToModel(entity)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
err = transformer.Repository.Create(header.Id, model)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
}
|