forked from cerc-io/ipld-eth-server
be58dd4ac8
* Add vat_move transformer base * Add vat_move migrations * Add test data for vat_move * Add vat_move transformer to initialisers * Add numeric cast to psql insert of Rad * Add new db schema * Dependency update * Expand abbreviation in repository * Add test suite for vat_move * Add header checking to transformer and mock repository * Remove trailing zero in test data * Fix minor mishaps * Go fmt nitpicking * Refactoring in tests * Add tests covering checked headers stuff (and fix revealed bugs) * go fmt fixes * Implement batching behaviour of transformer * Small fixes after review * Go fmt
67 lines
1.8 KiB
Go
67 lines
1.8 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 vat_move
|
|
|
|
import (
|
|
"encoding/json"
|
|
"errors"
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/core/types"
|
|
)
|
|
|
|
type Converter interface {
|
|
ToModels(ethLog []types.Log) ([]VatMoveModel, error)
|
|
}
|
|
|
|
type VatMoveConverter struct{}
|
|
|
|
func (VatMoveConverter) ToModels(ethLogs []types.Log) ([]VatMoveModel, error) {
|
|
var models []VatMoveModel
|
|
for _, ethLog := range ethLogs {
|
|
err := verifyLog(ethLog)
|
|
if err != nil {
|
|
return []VatMoveModel{}, err
|
|
}
|
|
|
|
src := common.BytesToAddress(ethLog.Topics[1].Bytes()[:common.AddressLength])
|
|
dst := common.BytesToAddress(ethLog.Topics[2].Bytes()[:common.AddressLength])
|
|
rad := ethLog.Topics[3].Big()
|
|
raw, err := json.Marshal(ethLog)
|
|
if err != nil {
|
|
return []VatMoveModel{}, err
|
|
}
|
|
|
|
models = append(models, VatMoveModel{
|
|
Src: src.String(),
|
|
Dst: dst.String(),
|
|
Rad: rad.String(),
|
|
TransactionIndex: ethLog.TxIndex,
|
|
Raw: raw,
|
|
})
|
|
}
|
|
|
|
return models, nil
|
|
}
|
|
|
|
func verifyLog(ethLog types.Log) error {
|
|
if len(ethLog.Data) <= 0 {
|
|
return errors.New("log data is empty")
|
|
}
|
|
if len(ethLog.Topics) < 4 {
|
|
return errors.New("log missing topics")
|
|
}
|
|
return nil
|
|
}
|