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eventwriter.go
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eventwriter.go
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/*
* === This file is part of ALICE O² ===
*
* Copyright 2019-2024 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 the
import (
"sync"
"github.com/AliceO2Group/Control/common/event"
"github.com/AliceO2Group/Control/common/event/topic"
"github.com/AliceO2Group/Control/common/logger"
"github.com/sirupsen/logrus"
)
var (
writers = make(map[topic.Topic]*event.Writer)
mu sync.Mutex
log = logger.New(logrus.StandardLogger(), "core")
)
func createOrGetWriter(topic topic.Topic) *event.Writer {
mu.Lock()
defer mu.Unlock()
if writer, ok := writers[topic]; ok {
return writer
}
writers[topic] = event.NewWriterWithTopic(topic)
return writers[topic]
}
func EventWriter() *event.Writer {
return createOrGetWriter(topic.Root)
}
func EventWriterWithTopic(topic topic.Topic) *event.Writer {
return createOrGetWriter(topic)
}
func ClearEventWriters() {
mu.Lock()
defer mu.Unlock()
log.Logf(logrus.InfoLevel, "Clearing %d kafka producers", len(writers))
for _, writer := range writers {
writer.Close()
}
clear(writers)
}