83 lines
2.3 KiB
Go
83 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 dent
|
|
|
|
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 DentTransformer struct {
|
|
Config shared.TransformerConfig
|
|
Converter Converter
|
|
Fetcher shared.LogFetcher
|
|
Repository Repository
|
|
}
|
|
|
|
type DentTransformerInitializer struct {
|
|
Config shared.TransformerConfig
|
|
}
|
|
|
|
func (i DentTransformerInitializer) NewDentTransformer(db *postgres.DB, blockChain core.BlockChain) shared.Transformer {
|
|
converter := NewDentConverter()
|
|
fetcher := shared.NewFetcher(blockChain)
|
|
repository := NewDentRepository(db)
|
|
return DentTransformer{
|
|
Config: i.Config,
|
|
Converter: converter,
|
|
Fetcher: fetcher,
|
|
Repository: repository,
|
|
}
|
|
}
|
|
|
|
func (t DentTransformer) Execute() error {
|
|
config := t.Config
|
|
topics := [][]common.Hash{{common.HexToHash(shared.DentFunctionSignature)}}
|
|
headers, err := t.Repository.MissingHeaders(config.StartingBlockNumber, config.EndingBlockNumber)
|
|
log.Printf("Fetching dent event logs for %d headers \n", len(headers))
|
|
for _, header := range headers {
|
|
ethLogs, err := t.Fetcher.FetchLogs(config.ContractAddress, topics, header.BlockNumber)
|
|
if err != nil {
|
|
log.Println("Error fetching dent logs:", err)
|
|
return err
|
|
}
|
|
if len(ethLogs) < 1 {
|
|
err := t.Repository.MarkHeaderChecked(header.Id)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
models, err := t.Converter.ToModels(ethLogs)
|
|
if err != nil {
|
|
log.Println("Error converting dent log", err)
|
|
return err
|
|
}
|
|
|
|
err = t.Repository.Create(header.Id, models)
|
|
if err != nil {
|
|
log.Println("Error persisting dent record", err)
|
|
return err
|
|
}
|
|
}
|
|
|
|
return err
|
|
}
|