ipld-eth-server/pkg/btc/mocks/converter.go

65 lines
2.4 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 (
"fmt"
"github.com/vulcanize/ipfs-blockchain-watcher/pkg/btc"
"github.com/vulcanize/ipfs-blockchain-watcher/pkg/shared"
)
// PayloadConverter is the underlying struct for the Converter interface
type PayloadConverter struct {
PassedStatediffPayload btc.BlockPayload
ReturnIPLDPayload btc.ConvertedPayload
ReturnErr error
}
// Convert method is used to convert a geth statediff.Payload to a IPLDPayload
func (pc *PayloadConverter) Convert(payload shared.RawChainData) (shared.ConvertedData, error) {
stateDiffPayload, ok := payload.(btc.BlockPayload)
if !ok {
return nil, fmt.Errorf("convert expected payload type %T got %T", btc.BlockPayload{}, payload)
}
pc.PassedStatediffPayload = stateDiffPayload
return pc.ReturnIPLDPayload, pc.ReturnErr
}
// IterativePayloadConverter is the underlying struct for the Converter interface
type IterativePayloadConverter struct {
PassedStatediffPayload []btc.BlockPayload
ReturnIPLDPayload []btc.ConvertedPayload
ReturnErr error
iteration int
}
// Convert method is used to convert a geth statediff.Payload to a IPLDPayload
func (pc *IterativePayloadConverter) Convert(payload shared.RawChainData) (shared.ConvertedData, error) {
stateDiffPayload, ok := payload.(btc.BlockPayload)
if !ok {
return nil, fmt.Errorf("convert expected payload type %T got %T", btc.BlockPayload{}, payload)
}
pc.PassedStatediffPayload = append(pc.PassedStatediffPayload, stateDiffPayload)
if len(pc.PassedStatediffPayload) < pc.iteration+1 {
return nil, fmt.Errorf("IterativePayloadConverter does not have a payload to return at iteration %d", pc.iteration)
}
returnPayload := pc.ReturnIPLDPayload[pc.iteration]
pc.iteration++
return returnPayload, pc.ReturnErr
}