ipld-eth-server/pkg/transformers/factories/storage/transformer.go
Rob Mulholand 867f92c431 (VDB-298) Consume Pit contract storage diffs
- Continuously parse storage diffs CSV data to read Pit contract state
- Convert ilks in database to raw bytes32 value for use in generating
  storage keys dynamically
- Persist storage diffs with block number and hash for validation
2019-02-06 10:31:46 -06:00

54 lines
1.8 KiB
Go

// VulcanizeDB
// Copyright © 2018 Vulcanize
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package storage
import (
"github.com/ethereum/go-ethereum/common"
"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
"github.com/vulcanize/vulcanizedb/pkg/transformers/shared/storage"
"github.com/vulcanize/vulcanizedb/pkg/transformers/storage_diffs"
"github.com/vulcanize/vulcanizedb/pkg/transformers/storage_diffs/shared"
)
type Transformer struct {
Address common.Address
Mappings storage_diffs.Mappings
Repository storage_diffs.Repository
}
func (transformer Transformer) NewTransformer(db *postgres.DB) storage.Transformer {
transformer.Mappings.SetDB(db)
transformer.Repository.SetDB(db)
return transformer
}
func (transformer Transformer) ContractAddress() common.Address {
return transformer.Address
}
func (transformer Transformer) Execute(row shared.StorageDiffRow) error {
metadata, lookupErr := transformer.Mappings.Lookup(row.StorageKey)
if lookupErr != nil {
return lookupErr
}
value, decodeErr := shared.Decode(row, metadata)
if decodeErr != nil {
return decodeErr
}
return transformer.Repository.Create(row.BlockHeight, row.BlockHash.Hex(), metadata, value)
}