lnd.xprv/cluster/factory.go
2021-05-04 17:33:07 +02:00

38 lines
1013 B
Go

package cluster
import (
"context"
"fmt"
)
// leaderElectorFactoryFunc is a LeaderElector factory method type.
type leaderElectorFactoryFunc func(context.Context, ...interface{}) (
LeaderElector, error)
var leaderElectorFactories map[string]leaderElectorFactoryFunc
// RegisterLeaderElectorFactory will register a new LeaderElector factory
// method corresponding to the passed id.
func RegisterLeaderElectorFactory(id string, factory leaderElectorFactoryFunc) {
if leaderElectorFactories == nil {
leaderElectorFactories = make(
map[string]leaderElectorFactoryFunc,
)
}
leaderElectorFactories[id] = factory
}
// MakeLeaderElector will constuct a LeaderElector identified by id with the
// passed arguments.
func MakeLeaderElector(ctx context.Context, id string, args ...interface{}) (
LeaderElector, error) {
if _, ok := leaderElectorFactories[id]; !ok {
return nil, fmt.Errorf("leader elector factory for '%v' "+
"not found", id)
}
return leaderElectorFactories[id](ctx, args...)
}