Files
mostlymatter/jobs/export_process/worker.go
Agniva De Sarker f0ecdcc5f5 Move Channels into App (#18623)
* Move Channels into App

In this PR, we make Channels as part of App
instead of Server. This is part of the transition period
of moving fields from Server to Channels.

For now, Channels contains Server. So the hierarchy is

App -> Channels -> Server.

And as a first step, we also move httpService to Channels.

```release-note
NONE
```

* Fixing another test

```release-note
NONE
```

* new method

```release-note
NONE
```
2021-10-12 11:39:49 +05:30

140 строки
3.6 KiB
Go

// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
package export_process
import (
"io"
"path/filepath"
"github.com/mattermost/mattermost-server/v6/app"
"github.com/mattermost/mattermost-server/v6/jobs"
tjobs "github.com/mattermost/mattermost-server/v6/jobs/interfaces"
"github.com/mattermost/mattermost-server/v6/model"
"github.com/mattermost/mattermost-server/v6/shared/mlog"
)
func init() {
app.RegisterJobsExportProcessInterface(func(s *app.Server) tjobs.ExportProcessInterface {
a := app.New(app.ServerConnector(s.Channels()))
return &ExportProcessInterfaceImpl{a}
})
}
type ExportProcessInterfaceImpl struct {
app *app.App
}
type ExportProcessWorker struct {
name string
stopChan chan struct{}
stoppedChan chan struct{}
jobsChan chan model.Job
jobServer *jobs.JobServer
app *app.App
}
func (i *ExportProcessInterfaceImpl) MakeWorker() model.Worker {
return &ExportProcessWorker{
name: "ExportProcess",
stopChan: make(chan struct{}),
stoppedChan: make(chan struct{}),
jobsChan: make(chan model.Job),
jobServer: i.app.Srv().Jobs,
app: i.app,
}
}
func (w *ExportProcessWorker) JobChannel() chan<- model.Job {
return w.jobsChan
}
func (w *ExportProcessWorker) Run() {
mlog.Debug("Worker started", mlog.String("worker", w.name))
defer func() {
mlog.Debug("Worker finished", mlog.String("worker", w.name))
close(w.stoppedChan)
}()
for {
select {
case <-w.stopChan:
mlog.Debug("Worker received stop signal", mlog.String("worker", w.name))
return
case job := <-w.jobsChan:
mlog.Debug("Worker received a new candidate job.", mlog.String("worker", w.name))
w.doJob(&job)
}
}
}
func (w *ExportProcessWorker) Stop() {
mlog.Debug("Worker stopping", mlog.String("worker", w.name))
close(w.stopChan)
<-w.stoppedChan
}
func (w *ExportProcessWorker) doJob(job *model.Job) {
if claimed, err := w.jobServer.ClaimJob(job); err != nil {
mlog.Warn("Worker experienced an error while trying to claim job",
mlog.String("worker", w.name),
mlog.String("job_id", job.Id),
mlog.String("error", err.Error()))
return
} else if !claimed {
return
}
opts := app.BulkExportOpts{
CreateArchive: true,
}
includeAttachments, ok := job.Data["include_attachments"]
if ok && includeAttachments == "true" {
opts.IncludeAttachments = true
}
outPath := *w.app.Config().ExportSettings.Directory
exportFilename := model.NewId() + "_export.zip"
rd, wr := io.Pipe()
errCh := make(chan *model.AppError, 1)
go func() {
defer close(errCh)
_, appErr := w.app.WriteFile(rd, filepath.Join(outPath, exportFilename))
errCh <- appErr
}()
appErr := w.app.BulkExport(wr, outPath, opts)
if err := wr.Close(); err != nil {
mlog.Warn("Worker: error closing writer")
}
if appErr != nil {
w.setJobError(job, appErr)
return
}
if appErr := <-errCh; appErr != nil {
w.setJobError(job, appErr)
return
}
mlog.Info("Worker: Job is complete", mlog.String("worker", w.name), mlog.String("job_id", job.Id))
w.setJobSuccess(job)
}
func (w *ExportProcessWorker) setJobSuccess(job *model.Job) {
if err := w.app.Srv().Jobs.SetJobSuccess(job); err != nil {
mlog.Error("Worker: Failed to set success for job", mlog.String("worker", w.name), mlog.String("job_id", job.Id), mlog.String("error", err.Error()))
w.setJobError(job, err)
}
}
func (w *ExportProcessWorker) setJobError(job *model.Job, appError *model.AppError) {
if err := w.app.Srv().Jobs.SetJobError(job, appError); err != nil {
mlog.Error("Worker: Failed to set job error", mlog.String("worker", w.name), mlog.String("job_id", job.Id), mlog.String("error", err.Error()))
}
}