ipld-eth-server/pkg/datastore/ethereum/level/database_reader.go
2019-07-23 15:26:18 -05:00

62 lines
2.1 KiB
Go

// 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 level
import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/params"
)
type Reader interface {
GetBlock(hash common.Hash, number uint64) *types.Block
GetBlockNumber(hash common.Hash) *uint64
GetBlockReceipts(hash common.Hash, number uint64) types.Receipts
GetCanonicalHash(number uint64) common.Hash
GetHeadBlockHash() common.Hash
}
type LevelDatabaseReader struct {
reader ethdb.Reader
}
func NewLevelDatabaseReader(reader ethdb.Reader) *LevelDatabaseReader {
return &LevelDatabaseReader{reader: reader}
}
func (ldbr *LevelDatabaseReader) GetBlock(hash common.Hash, number uint64) *types.Block {
return rawdb.ReadBlock(ldbr.reader, hash, number)
}
func (ldbr *LevelDatabaseReader) GetBlockNumber(hash common.Hash) *uint64 {
return rawdb.ReadHeaderNumber(ldbr.reader, hash)
}
func (ldbr *LevelDatabaseReader) GetBlockReceipts(hash common.Hash, number uint64) types.Receipts {
return rawdb.ReadReceipts(ldbr.reader, hash, number, &params.ChainConfig{})
}
func (ldbr *LevelDatabaseReader) GetCanonicalHash(number uint64) common.Hash {
return rawdb.ReadCanonicalHash(ldbr.reader, number)
}
func (ldbr *LevelDatabaseReader) GetHeadBlockHash() common.Hash {
return rawdb.ReadHeadBlockHash(ldbr.reader)
}