ipld-eth-server/pkg/history/block_validator.go

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// 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 history
import (
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"github.com/sirupsen/logrus"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/datastore"
)
type BlockValidator struct {
blockchain core.BlockChain
blockRepository datastore.BlockRepository
windowSize int
}
func NewBlockValidator(blockchain core.BlockChain, blockRepository datastore.BlockRepository, windowSize int) *BlockValidator {
return &BlockValidator{
blockchain: blockchain,
blockRepository: blockRepository,
windowSize: windowSize,
}
}
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func (bv BlockValidator) ValidateBlocks() (ValidationWindow, error) {
window, err := MakeValidationWindow(bv.blockchain, bv.windowSize)
if err != nil {
logrus.Error("ValidateBlocks: error creating validation window: ", err)
return ValidationWindow{}, err
}
blockNumbers := MakeRange(window.LowerBound, window.UpperBound)
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_, err = RetrieveAndUpdateBlocks(bv.blockchain, bv.blockRepository, blockNumbers)
if err != nil {
logrus.Error("ValidateBlocks: error getting and updating blocks: ", err)
return ValidationWindow{}, err
}
lastBlock, err := bv.blockchain.LastBlock()
if err != nil {
logrus.Error("ValidateBlocks: error getting last block: ", err)
return ValidationWindow{}, err
}
err = bv.blockRepository.SetBlocksStatus(lastBlock.Int64())
if err != nil {
logrus.Error("ValidateBlocks: error setting block status: ", err)
return ValidationWindow{}, err
}
return window, nil
}