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requestsexecutor.go
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/
requestsexecutor.go
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//
// Copyright 2019 Insolar Technologies GmbH
//
// 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 logicrunner
import (
"context"
"github.com/pkg/errors"
"github.com/insolar/insolar/insolar"
"github.com/insolar/insolar/insolar/bus"
"github.com/insolar/insolar/insolar/payload"
"github.com/insolar/insolar/insolar/pulse"
"github.com/insolar/insolar/insolar/record"
"github.com/insolar/insolar/insolar/reply"
"github.com/insolar/insolar/instrumentation/inslogger"
"github.com/insolar/insolar/instrumentation/instracer"
"github.com/insolar/insolar/logicrunner/artifacts"
"github.com/insolar/insolar/logicrunner/common"
"github.com/insolar/insolar/logicrunner/logicexecutor"
)
//go:generate minimock -i github.com/insolar/insolar/logicrunner.RequestsExecutor -o ./ -s _mock.go -g
type RequestsExecutor interface {
ExecuteAndSave(ctx context.Context, current *common.Transcript) (artifacts.RequestResult, error)
Execute(ctx context.Context, current *common.Transcript) (artifacts.RequestResult, error)
Save(ctx context.Context, current *common.Transcript, res artifacts.RequestResult) error
SendReply(ctx context.Context, reqRef insolar.Reference, req record.IncomingRequest, re insolar.Reply, err error)
}
type requestsExecutor struct {
Sender bus.Sender `inject:""`
LogicExecutor logicexecutor.LogicExecutor `inject:""`
ArtifactManager artifacts.Client `inject:""`
PulseAccessor pulse.Accessor `inject:""`
}
func NewRequestsExecutor() RequestsExecutor {
return &requestsExecutor{}
}
func (e *requestsExecutor) ExecuteAndSave(
ctx context.Context, transcript *common.Transcript,
) (
artifacts.RequestResult, error,
) {
ctx, span := instracer.StartSpan(ctx, "RequestsExecutor.ExecuteAndSave")
defer span.End()
result, err := e.Execute(ctx, transcript)
if err != nil {
return nil, errors.Wrap(err, "couldn't execute request")
}
err = e.Save(ctx, transcript, result)
if err != nil {
return nil, errors.Wrap(err, "couldn't save request result")
}
return result, nil
}
func (e *requestsExecutor) Execute(
ctx context.Context, transcript *common.Transcript,
) (
artifacts.RequestResult, error,
) {
ctx, span := instracer.StartSpan(ctx, "LogicRunner.executeLogic")
defer span.End()
inslogger.FromContext(ctx).Debug("executing request")
result, err := e.LogicExecutor.Execute(ctx, transcript)
if err != nil {
return nil, errors.Wrap(err, "couldn't execute method")
}
return result, nil
}
func (e *requestsExecutor) Save(
ctx context.Context, transcript *common.Transcript, res artifacts.RequestResult,
) error {
inslogger.FromContext(ctx).Debug("saving result")
err := e.ArtifactManager.RegisterResult(ctx, transcript.RequestRef, res)
if err != nil {
return errors.Wrapf(err, "couldn't save result with %s side effect", res.Type().String())
}
inslogger.FromContext(ctx).Debug("saved result")
return nil
}
// objRef := res.ObjectReference()
// return &reply.CallMethod{Result: res.Result(), Object: &objRef}, nil
func (e *requestsExecutor) SendReply(
ctx context.Context,
reqRef insolar.Reference, req record.IncomingRequest,
re insolar.Reply, err error,
) {
logger := inslogger.FromContext(ctx)
if rm := req.ReturnMode; rm != record.ReturnResult {
logger.Debug(
"Not sending result, return mode: ", rm.String(),
)
return
}
logger.Debug("returning result")
var errStr string
if err != nil {
errStr = err.Error()
}
var replyBytes []byte
if re != nil {
replyBytes = reply.ToBytes(re)
}
if len(errStr) == 0 && len(replyBytes) == 0 {
logger.Error("both reply and error are empty, this is wrong, not sending")
return
}
if req.APINode.IsEmpty() {
e.sendToCaller(ctx, reqRef, req, replyBytes, errStr)
return
}
e.sendToAPINode(ctx, reqRef, req, replyBytes, errStr)
}
func (e *requestsExecutor) sendToCaller(
ctx context.Context,
reqRef insolar.Reference, req record.IncomingRequest,
re []byte, errStr string,
) {
sender := bus.NewWaitOKWithRetrySender(e.Sender, e.PulseAccessor, 1)
msg, err := payload.NewResultMessage(&payload.ReturnResults{
Target: req.Caller,
RequestRef: reqRef,
Reason: req.Reason,
Reply: re,
Error: errStr,
})
if err != nil {
inslogger.FromContext(ctx).Error("couldn't serialize message: ", err)
return
}
sender.SendRole(ctx, msg, insolar.DynamicRoleVirtualExecutor, req.Caller)
}
func (e *requestsExecutor) sendToAPINode(
ctx context.Context,
reqRef insolar.Reference, req record.IncomingRequest,
re []byte, errStr string,
) {
sender := bus.NewWaitOKWithRetrySender(e.Sender, e.PulseAccessor, 1)
msg, err := payload.NewResultMessage(&payload.ReturnResults{
RequestRef: reqRef,
Reply: re,
Error: errStr,
})
if err != nil {
inslogger.FromContext(ctx).Error("couldn't serialize message: ", err)
return
}
sender.SendTarget(ctx, msg, req.APINode)
}