ipld-eth-server/pkg/transformers/pit_file/ilk/transformer.go
Rob Mulholand 56c45b6841 Add logging for every transformer
- Also add drip file transformer initializer
2018-09-19 11:00:20 -05:00

76 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 ilk
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/pit_file"
"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
)
type PitFileIlkTransformer struct {
Config shared.TransformerConfig
Converter Converter
Fetcher shared.LogFetcher
Repository Repository
}
type PitFileIlkTransformerInitializer struct {
Config shared.TransformerConfig
}
func (initializer PitFileIlkTransformerInitializer) NewPitFileIlkTransformer(db *postgres.DB, blockChain core.BlockChain) shared.Transformer {
converter := PitFileIlkConverter{}
fetcher := shared.NewFetcher(blockChain)
repository := NewPitFileIlkRepository(db)
return PitFileIlkTransformer{
Config: initializer.Config,
Converter: converter,
Fetcher: fetcher,
Repository: repository,
}
}
func (transformer PitFileIlkTransformer) Execute() error {
missingHeaders, err := transformer.Repository.MissingHeaders(transformer.Config.StartingBlockNumber, transformer.Config.EndingBlockNumber)
if err != nil {
return err
}
log.Printf("Fetching pit file ilk event logs for %d headers \n", len(missingHeaders))
for _, header := range missingHeaders {
topics := [][]common.Hash{{common.HexToHash(shared.PitFileIlkSignature)}}
matchingLogs, err := transformer.Fetcher.FetchLogs(pit_file.PitFileConfig.ContractAddress, topics, header.BlockNumber)
if err != nil {
return err
}
for _, log := range matchingLogs {
model, err := transformer.Converter.ToModel(log)
if err != nil {
return err
}
err = transformer.Repository.Create(header.Id, model)
if err != nil {
return err
}
}
}
return nil
}