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consumer_interface.go
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consumer_interface.go
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// Copyright (C) 2020 Finogeeks Co., Ltd
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License, version 3,
// as published by the Free Software Foundation.
//
// 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package consumers
import (
"context"
"sync"
"github.com/finogeeks/ligase/common/config"
"github.com/finogeeks/ligase/model/dbtypes"
log "github.com/finogeeks/ligase/skunkworks/log"
"github.com/finogeeks/ligase/skunkworks/monitor/go-client/monitor"
)
var regMu sync.RWMutex
var newHandler = make(map[int64]func() ConsumerInterface)
type ConsumerInterface interface {
OnMessage(context.Context, *dbtypes.DBEvent) error
Prepare(*config.Dendrite)
Report(monitor.LabeledGauge)
Start()
}
func Register(name int64, f func() ConsumerInterface) {
regMu.Lock()
defer regMu.Unlock()
if f == nil {
log.Panicf("Register: %s func nil", dbtypes.DBCategoryToStr(name))
}
if _, ok := newHandler[name]; ok {
log.Panicf("Register: %s already registered", dbtypes.DBCategoryToStr(name))
}
newHandler[name] = f
}