ipld-eth-server/pkg/eth/cold_import/importer.go

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// VulcanizeDB
// Copyright © 2019 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 cold_import
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import (
"github.com/vulcanize/vulcanizedb/pkg/datastore"
"github.com/vulcanize/vulcanizedb/pkg/datastore/ethereum"
"github.com/vulcanize/vulcanizedb/pkg/eth/converters/common"
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)
type ColdImporter struct {
blockRepository datastore.BlockRepository
converter common.BlockConverter
ethDB ethereum.Database
receiptRepository datastore.FullSyncReceiptRepository
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}
func NewColdImporter(ethDB ethereum.Database, blockRepository datastore.BlockRepository, receiptRepository datastore.FullSyncReceiptRepository, converter common.BlockConverter) *ColdImporter {
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return &ColdImporter{
blockRepository: blockRepository,
converter: converter,
ethDB: ethDB,
receiptRepository: receiptRepository,
}
}
func (ci *ColdImporter) Execute(startingBlockNumber int64, endingBlockNumber int64, nodeID string) error {
missingBlocks := ci.blockRepository.MissingBlockNumbers(startingBlockNumber, endingBlockNumber, nodeID)
for _, n := range missingBlocks {
hash := ci.ethDB.GetBlockHash(n)
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blockID, err := ci.createBlocksAndTransactions(hash, n)
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if err != nil {
return err
}
err = ci.createReceiptsAndLogs(hash, n, blockID)
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if err != nil {
return err
}
}
ci.blockRepository.SetBlocksStatus(endingBlockNumber)
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return nil
}
func (ci *ColdImporter) createBlocksAndTransactions(hash []byte, i int64) (int64, error) {
block := ci.ethDB.GetBlock(hash, i)
coreBlock, err := ci.converter.ToCoreBlock(block)
if err != nil {
return 0, err
}
return ci.blockRepository.CreateOrUpdateBlock(coreBlock)
}
func (ci *ColdImporter) createReceiptsAndLogs(hash []byte, number int64, blockID int64) error {
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receipts := ci.ethDB.GetBlockReceipts(hash, number)
coreReceipts, err := common.ToCoreReceipts(receipts)
if err != nil {
return err
}
return ci.receiptRepository.CreateReceiptsAndLogs(blockID, coreReceipts)
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}