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// Copyright 2018 The dexon-consensus Authors
// This file is part of the dexon-consensus library.
//
// The dexon-consensus library is free software: you can redistribute it
// and/or modify it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation, either version 3 of the License,
// or (at your option) any later version.
//
// The dexon-consensus library 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 Lesser
// General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the dexon-consensus library. If not, see
// <http://www.gnu.org/licenses/>.
package test
import (
"encoding/json"
"fmt"
"github.com/dexon-foundation/dexon-consensus/core/types"
typesDKG "github.com/dexon-foundation/dexon-consensus/core/types/dkg"
)
// DefaultMarshaller is the default marshaller for testing core.Consensus.
type DefaultMarshaller struct {
fallback Marshaller
}
// NewDefaultMarshaller constructs an DefaultMarshaller instance.
func NewDefaultMarshaller(fallback Marshaller) *DefaultMarshaller {
return &DefaultMarshaller{
fallback: fallback,
}
}
// Unmarshal implements Marshaller interface.
func (m *DefaultMarshaller) Unmarshal(
msgType string, payload []byte) (msg interface{}, err error) {
switch msgType {
case "block":
block := &types.Block{}
if err = json.Unmarshal(payload, block); err != nil {
break
}
msg = block
case "vote":
vote := &types.Vote{}
if err = json.Unmarshal(payload, vote); err != nil {
break
}
msg = vote
case "agreement-result":
result := &types.AgreementResult{}
if err = json.Unmarshal(payload, result); err != nil {
break
}
msg = result
case "dkg-private-share":
privateShare := &typesDKG.PrivateShare{}
if err = json.Unmarshal(payload, privateShare); err != nil {
break
}
msg = privateShare
case "dkg-master-public-key":
masterPublicKey := typesDKG.NewMasterPublicKey()
if err = json.Unmarshal(payload, masterPublicKey); err != nil {
break
}
msg = masterPublicKey
case "dkg-complaint":
complaint := &typesDKG.Complaint{}
if err = json.Unmarshal(payload, complaint); err != nil {
break
}
msg = complaint
case "dkg-partial-signature":
psig := &typesDKG.PartialSignature{}
if err = json.Unmarshal(payload, psig); err != nil {
break
}
msg = psig
case "dkg-finalize":
final := &typesDKG.Finalize{}
if err = json.Unmarshal(payload, final); err != nil {
break
}
msg = final
case "packed-state-changes":
packed := &packedStateChanges{}
if err = json.Unmarshal(payload, packed); err != nil {
break
}
msg = *packed
case "pull-request":
req := &PullRequest{}
if err = json.Unmarshal(payload, req); err != nil {
break
}
msg = req
default:
if m.fallback == nil {
err = fmt.Errorf("unknown msg type: %v", msgType)
break
}
msg, err = m.fallback.Unmarshal(msgType, payload)
}
return
}
// Marshal implements Marshaller interface.
func (m *DefaultMarshaller) Marshal(
msg interface{}) (msgType string, payload []byte, err error) {
switch msg.(type) {
case *types.Block:
msgType = "block"
payload, err = json.Marshal(msg)
case *types.Vote:
msgType = "vote"
payload, err = json.Marshal(msg)
case *types.AgreementResult:
msgType = "agreement-result"
payload, err = json.Marshal(msg)
case *typesDKG.PrivateShare:
msgType = "dkg-private-share"
payload, err = json.Marshal(msg)
case *typesDKG.MasterPublicKey:
msgType = "dkg-master-public-key"
payload, err = json.Marshal(msg)
case *typesDKG.Complaint:
msgType = "dkg-complaint"
payload, err = json.Marshal(msg)
case *typesDKG.PartialSignature:
msgType = "dkg-partial-signature"
payload, err = json.Marshal(msg)
case *typesDKG.Finalize:
msgType = "dkg-finalize"
payload, err = json.Marshal(msg)
case packedStateChanges:
msgType = "packed-state-changes"
payload, err = json.Marshal(msg)
case *PullRequest:
msgType = "pull-request"
payload, err = json.Marshal(msg)
default:
if m.fallback == nil {
err = fmt.Errorf("unknwon message type: %v", msg)
break
}
msgType, payload, err = m.fallback.Marshal(msg)
}
return
}
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