Files
opencloud/services/postprocessing/pkg/postprocessing/postprocessing.go
2023-01-26 11:50:16 +01:00

101 lines
2.7 KiB
Go

package postprocessing
import (
"time"
user "github.com/cs3org/go-cs3apis/cs3/identity/user/v1beta1"
provider "github.com/cs3org/go-cs3apis/cs3/storage/provider/v1beta1"
"github.com/cs3org/reva/v2/pkg/events"
)
// Postprocessing handles postprocessing of a file
type Postprocessing struct {
id string
url string
u *user.User
m map[events.Postprocessingstep]interface{}
filename string
filesize uint64
resourceID *provider.ResourceId
steps []events.Postprocessingstep
delay time.Duration
}
// New returns a new postprocessing instance
func New(uploadID string, uploadURL string, user *user.User, filename string, filesize uint64, resourceID *provider.ResourceId, steps []events.Postprocessingstep, delay time.Duration) *Postprocessing {
return &Postprocessing{
id: uploadID,
url: uploadURL,
u: user,
m: make(map[events.Postprocessingstep]interface{}),
filename: filename,
filesize: filesize,
resourceID: resourceID,
steps: steps,
delay: delay,
}
}
// Init is the first step of the postprocessing
func (pp *Postprocessing) Init(ev events.BytesReceived) interface{} {
pp.m["init"] = ev
if len(pp.steps) == 0 {
return pp.finished(events.PPOutcomeContinue)
}
return pp.nextStep(pp.steps[0])
}
// NextStep returns the next postprocessing step
func (pp *Postprocessing) NextStep(ev events.PostprocessingStepFinished) interface{} {
pp.m[ev.FinishedStep] = ev
switch ev.Outcome {
case events.PPOutcomeContinue:
return pp.next(ev.FinishedStep)
default:
return pp.finished(ev.Outcome)
}
}
// Delay will sleep the configured time then continue
func (pp *Postprocessing) Delay(ev events.StartPostprocessingStep) interface{} {
pp.m[events.PPStepDelay] = ev
time.Sleep(pp.delay)
return pp.next(events.PPStepDelay)
}
func (pp *Postprocessing) next(current events.Postprocessingstep) interface{} {
l := len(pp.steps)
for i, s := range pp.steps {
if s == current && i+1 < l {
return pp.nextStep(pp.steps[i+1])
}
}
return pp.finished(events.PPOutcomeContinue)
}
func (pp *Postprocessing) nextStep(next events.Postprocessingstep) events.StartPostprocessingStep {
return events.StartPostprocessingStep{
UploadID: pp.id,
URL: pp.url,
ExecutingUser: pp.u,
Filename: pp.filename,
Filesize: pp.filesize,
ResourceID: pp.resourceID,
StepToStart: next,
}
}
func (pp *Postprocessing) finished(outcome events.PostprocessingOutcome) events.PostprocessingFinished {
return events.PostprocessingFinished{
UploadID: pp.id,
Result: pp.m,
ExecutingUser: pp.u,
Filename: pp.filename,
Outcome: outcome,
}
}