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send_filament.go
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/
send_filament.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 proc
import (
"context"
"github.com/pkg/errors"
"go.opencensus.io/trace"
"github.com/insolar/insolar/insolar"
"github.com/insolar/insolar/insolar/bus"
"github.com/insolar/insolar/insolar/payload"
"github.com/insolar/insolar/instrumentation/instracer"
"github.com/insolar/insolar/ledger/light/executor"
)
type SendFilament struct {
message payload.Meta
objID, startFrom insolar.ID
readUntil insolar.PulseNumber
dep struct {
sender bus.Sender
filaments executor.FilamentCalculator
}
}
func NewSendFilament(msg payload.Meta, objID insolar.ID, startFrom insolar.ID, readUntil insolar.PulseNumber) *SendFilament {
return &SendFilament{
message: msg,
objID: objID,
startFrom: startFrom,
readUntil: readUntil,
}
}
func (p *SendFilament) Dep(sender bus.Sender, filaments executor.FilamentCalculator) {
p.dep.sender = sender
p.dep.filaments = filaments
}
func (p *SendFilament) Proceed(ctx context.Context) error {
ctx, span := instracer.StartSpan(ctx, "SendFilament")
defer span.End()
span.AddAttributes(
trace.StringAttribute("objID", p.objID.DebugString()),
trace.StringAttribute("startFrom", p.startFrom.DebugString()),
trace.StringAttribute("readUntil", p.readUntil.String()),
)
records, err := p.dep.filaments.Requests(ctx, p.objID, p.startFrom, p.readUntil)
if err != nil {
return errors.Wrap(err, "failed to fetch filament")
}
if len(records) == 0 {
return &payload.CodedError{
Text: "requests not found",
Code: payload.CodeNotFound,
}
}
msg, err := payload.NewMessage(&payload.FilamentSegment{
ObjectID: p.objID,
Records: records,
})
if err != nil {
return errors.Wrap(err, "failed to create message")
}
p.dep.sender.Reply(ctx, p.message, msg)
return nil
}