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syncdispatcher.go
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/
syncdispatcher.go
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// Copyright 2019 SEE CONTRIBUTORS
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package maidenlanedcontracts
import (
"context"
"fmt"
"reflect"
"time"
"github.com/freight-trust/zeroxyz/internal/maidenlanederrors"
"github.com/freight-trust/zeroxyz/internal/maidenlanedmessages"
"github.com/freight-trust/zeroxyz/internal/maidenlanedtx"
"github.com/freight-trust/zeroxyz/internal/maidenlanedutils"
log "github.com/sirupsen/logrus"
)
type syncDispatcher struct {
processor maidenlanedtx.TxnProcessor
}
func newSyncDispatcher(processor maidenlanedtx.TxnProcessor) rest2EthSyncDispatcher {
return &syncDispatcher{
processor: processor,
}
}
type syncTxInflight struct {
ctx context.Context
d *syncDispatcher
replyProcessor rest2EthReplyProcessor
timeReceived time.Time
sendMsg *maidenlanedmessages.SendTransaction
deployMsg *maidenlanedmessages.DeployContract
}
func (t *syncTxInflight) Context() context.Context {
return t.ctx
}
func (t *syncTxInflight) Headers() *maidenlanedmessages.CommonHeaders {
if t.deployMsg != nil {
return &t.deployMsg.Headers.CommonHeaders
}
return &t.sendMsg.Headers.CommonHeaders
}
func (t *syncTxInflight) Unmarshal(msg interface{}) error {
var retMsg interface{}
if t.deployMsg != nil {
retMsg = t.deployMsg
} else {
retMsg = t.sendMsg
}
if reflect.TypeOf(msg) != reflect.TypeOf(retMsg) {
log.Errorf("Type mismatch: %s != %s", reflect.TypeOf(msg), reflect.TypeOf(retMsg))
return maidenlanederrors.Errorf(maidenlanederrors.RESTGatewaySyncMsgTypeMismatch)
}
reflect.ValueOf(msg).Elem().Set(reflect.ValueOf(retMsg).Elem())
return nil
}
func (t *syncTxInflight) SendErrorReply(status int, err error) {
t.SendErrorReplyWithGapFill(status, err, "", false)
}
func (t *syncTxInflight) SendErrorReplyWithGapFill(status int, err error, gapFillTxHash string, gapFillSucceeded bool) {
t.replyProcessor.ReplyWithError(err) // We don't add the gapfill info in sync
}
func (t *syncTxInflight) SendErrorReplyWithTX(status int, err error, txHash string) {
t.SendErrorReply(status, maidenlanederrors.Errorf(maidenlanederrors.RESTGatewaySyncWrapErrorWithTXDetail, txHash, err))
}
func (t *syncTxInflight) Reply(replyMessage maidenlanedmessages.ReplyWithHeaders) {
headers := t.Headers()
replyHeaders := replyMessage.ReplyHeaders()
replyHeaders.ID = maidenlanedutils.UUIDv4()
replyHeaders.Context = headers.Context
replyHeaders.ReqID = headers.ID
replyHeaders.Received = t.timeReceived.UTC().Format(time.RFC3339Nano)
replyTime := time.Now().UTC()
replyHeaders.Elapsed = replyTime.Sub(t.timeReceived).Seconds()
t.replyProcessor.ReplyWithReceipt(replyMessage)
}
func (t *syncTxInflight) String() string {
headers := t.Headers()
return fmt.Sprintf("MsgContext[%s/%s]", headers.MsgType, headers.ID)
}
func (d *syncDispatcher) DispatchSendTransactionSync(ctx context.Context, msg *maidenlanedmessages.SendTransaction, replyProcessor rest2EthReplyProcessor) {
syncCtx := &syncTxInflight{
replyProcessor: replyProcessor,
timeReceived: time.Now().UTC(),
sendMsg: msg,
ctx: ctx,
}
d.processor.OnMessage(syncCtx)
}
func (d *syncDispatcher) DispatchDeployContractSync(ctx context.Context, msg *maidenlanedmessages.DeployContract, replyProcessor rest2EthReplyProcessor) {
syncCtx := &syncTxInflight{
replyProcessor: replyProcessor,
timeReceived: time.Now().UTC(),
deployMsg: msg,
ctx: ctx,
}
d.processor.OnMessage(syncCtx)
}