/
basictask.go
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/
basictask.go
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/*
* === This file is part of ALICE O² ===
*
* Copyright 2019 CERN and copyright holders of ALICE O².
* Author: Teo Mrnjavac <teo.mrnjavac@cern.ch>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* In applying this license CERN does not waive the privileges and
* immunities granted to it by virtue of its status as an
* Intergovernmental Organization or submit itself to any jurisdiction.
*/
package executable
import (
"github.com/AliceO2Group/Control/executor/executorcmd/transitioner"
)
type BasicTask struct {
basicTaskBase
}
func (t *BasicTask) makeTransitionFunc() transitioner.DoTransitionFunc {
// If it's a basic task role, we make a RUNNING-state based transition function
// otherwise we process the hooks spec.
return func(ei transitioner.EventInfo) (newState string, err error) {
log.WithField("partition", t.knownEnvironmentId.String()).
WithField("detector", t.knownDetector).
WithField("event", ei.Evt).
Debug("executor basic task transitioner requesting transition")
switch {
case ei.Src == "CONFIGURED" && ei.Evt == "START" && ei.Dst == "RUNNING":
err = t.startBasicTask()
if err != nil {
return "CONFIGURED", err
}
return "RUNNING", err
case ei.Src == "RUNNING" && ei.Evt == "STOP" && ei.Dst == "CONFIGURED":
err = t.ensureBasicTaskKilled()
return "CONFIGURED", err
default:
// By default we declare any transition as valid and executed as NOOP
return ei.Dst, nil
}
}
}
func (t *BasicTask) Launch() error {
return t.doLaunch(t.makeTransitionFunc())
}