func NewCandidate(repo repository.Repository, domain string) (Candidate, error) {
id, err := kit.NewID()
if err != nil {
return nil, err
}
c := &candidate{
id: id,
db: repo.DB(),
domain: domain,
leader: false,
ch: make(chan struct{}, 1),
m: &sync.RWMutex{},
}
err = c.setupDB()
if err != nil {
return nil, err
}
scheduling.NewFixedDelayScheduler(time.Second, 3*time.Second).Schedule(c.elect)
log.Println("start leader election candidate with id", id, "for domain", domain)
return c, nil
}
func NewDirectEventStore(repo repository.Repository, stream string, consumer string) (EventStore, error) {
es := &direct{
repo: repo,
stream: stream,
consumer: consumer,
locker: &sync.RWMutex{},
types: map[string]reflect.Type{},
aggregators: map[string]*list.List{},
rawAggregators: map[string][]AggregatorHandler{},
observers: map[string]*list.List{},
rawObservers: map[string][]ObserverHandler{},
newEventChannelName: "es_" + stream,
resumeCh: make(chan struct{}, 1),
}
kit.SafeGo(es.listen)
err := es.setupDB()
if err != nil {
return nil, err
}
lastID, err := fetchLastID(repo.DB(), stream, consumer)
if err != nil {
return nil, err
}
es.lastID = lastID
return es, nil
}