ipld-eth-server/libraries/shared/mocks/backfiller.go
Rob Mulholand 56ce8bdb41 (VDB-950) Write raw diffs before transforming
- Raw field we can reference by FK for related data
- Enables replay for unwatched or mistransformed diffs
2019-12-03 14:51:17 -06:00

59 lines
1.9 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 mocks
import (
"errors"
"github.com/vulcanize/vulcanizedb/libraries/shared/storage/utils"
)
// BackFiller mock for tests
type BackFiller struct {
StorageDiffsToReturn []utils.StorageDiffInput
BackFillErrs []error
PassedEndingBlock uint64
}
// SetStorageDiffsToReturn for tests
func (backFiller *BackFiller) SetStorageDiffsToReturn(diffs []utils.StorageDiffInput) {
backFiller.StorageDiffsToReturn = diffs
}
// BackFill mock method
func (backFiller *BackFiller) BackFill(startingBlock, endingBlock uint64, backFill chan utils.StorageDiffInput, errChan chan error, done chan bool) error {
if endingBlock < startingBlock {
return errors.New("backfill: ending block number needs to be greater than starting block number")
}
backFiller.PassedEndingBlock = endingBlock
go func(backFill chan utils.StorageDiffInput, errChan chan error, done chan bool) {
errLen := len(backFiller.BackFillErrs)
for i, diff := range backFiller.StorageDiffsToReturn {
if i < errLen {
err := backFiller.BackFillErrs[i]
if err != nil {
errChan <- err
continue
}
}
backFill <- diff
}
done <- true
}(backFill, errChan, done)
return nil
}