func (e *Engine) finalizeMonitorChAfterExecute(mediators []stages.Mediator) {
if mediators[0].Type == "start" {
log.Debug("Finalize monitor channel..")
mediatorEnd := stages.Mediator{States: make(map[string]string), Type: "end"}
*e.MonitorCh <- mediatorEnd
} else {
log.Debugf("Skipped finalizing")
}
}
func (e *Engine) waitAllChildStages(childStages *list.List, stage *stages.Stage) {
for childStage := childStages.Front(); childStage != nil; childStage = childStage.Next() {
s := childStage.Value.(stages.Stage)
for {
log.Debugf("Receiving child: %v", s.GetStageName())
childReceived, ok := <-*s.GetOutputCh()
if !ok {
log.Debug("Closing child output")
break
}
log.Debugf("Sending child: %v", childReceived)
*(*stage).GetOutputCh() <- childReceived
log.Debugf("Send child: %v", childReceived)
}
log.Debugf("Finished executing child: %v", s.GetStageName())
}
}
// ExecuteStage executes the supplied stage
func (e *Engine) ExecuteStage(stage stages.Stage) {
log.Debug("Receiving input")
mediatorsReceived := e.receiveInputs(stage.GetInputCh())
log.Debugf("Received input size: %v", len(mediatorsReceived))
log.Debugf("Mediator received: %+v", mediatorsReceived)
log.Debugf("Execute as parent: %+v", stage)
log.Debugf("Execute as parent name %+v", stage.GetStageName())
var result string
if !e.isUpstreamAnyFailure(mediatorsReceived) || e.Opts.StopOnAnyFailure {
result = strconv.FormatBool(stage.(stages.Runner).Run())
} else {
log.Warnf("Execution is skipped: %v", stage.GetStageName())
result = "skipped"
}
log.Debugf("Stage execution results: %+v, %+v", stage.GetStageName(), result)
e.Resources.ReportStageResult(stage, result)
mediator := stages.Mediator{States: make(map[string]string)}
mediator.States[stage.GetStageName()] = result
if childStages := stage.GetChildStages(); childStages.Len() > 0 {
log.Debugf("Execute childstage: %v", childStages)
e.executeAllChildStages(&childStages, mediator)
e.waitAllChildStages(&childStages, &stage)
}
log.Debugf("Sending output of stage: %+v %v", stage.GetStageName(), mediator)
*stage.GetOutputCh() <- mediator
log.Debugf("Closing output of stage: %+v", stage.GetStageName())
close(*stage.GetOutputCh())
for _, m := range mediatorsReceived {
*e.MonitorCh <- m
}
*e.MonitorCh <- mediator
e.finalizeMonitorChAfterExecute(mediatorsReceived)
}