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/
database.go
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/
database.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 ethereum
import (
"fmt"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/sirupsen/logrus"
"github.com/ethereum/go-ethereum/core/types"
"github.com/vulcanize/vulcanizedb/pkg/datastore/ethereum/level"
)
type Database interface {
GetBlock(hash []byte, blockNumber int64) *types.Block
GetBlockHash(blockNumber int64) []byte
GetBlockReceipts(blockHash []byte, blockNumber int64) types.Receipts
GetHeadBlockNumber() int64
}
func CreateDatabase(config DatabaseConfig) (Database, error) {
switch config.Type {
case Level:
levelDBConnection, err := rawdb.NewLevelDBDatabase(config.Path, 128, 1024, "vdb")
if err != nil {
logrus.Error("CreateDatabase: error connecting to new LDBD: ", err)
return nil, err
}
levelDBReader := level.NewLevelDatabaseReader(levelDBConnection)
levelDB := level.NewLevelDatabase(levelDBReader)
return levelDB, nil
default:
return nil, fmt.Errorf("Unknown ethereum database: %s", config.Path)
}
}