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package broadcast
import (
"errors"
"sync"
"github.com/spiral/roadrunner/service/rpc"
)
// ID defines public service name.
const ID = "broadcast"
// Service manages even broadcasting and websocket interface.
type Service struct {
// service and broker configuration
cfg *Config
// broker
mu sync.Mutex
broker Broker
}
// Init service.
func (s *Service) Init(cfg *Config, rpc *rpc.Service) (ok bool, err error) {
s.cfg = cfg
if rpc != nil {
if err := rpc.Register(ID, &rpcService{svc: s}); err != nil {
return false, err
}
}
s.mu.Lock()
if s.cfg.Redis != nil {
if s.broker, err = redisBroker(s.cfg.Redis); err != nil {
return false, err
}
} else {
s.broker = memoryBroker()
}
s.mu.Unlock()
return true, nil
}
// Serve broadcast broker.
func (s *Service) Serve() (err error) {
return s.broker.Serve()
}
// Stop closes broadcast broker.
func (s *Service) Stop() {
broker := s.Broker()
if broker != nil {
broker.Stop()
}
}
// Broker returns associated broker.
func (s *Service) Broker() Broker {
s.mu.Lock()
defer s.mu.Unlock()
return s.broker
}
// NewClient returns single connected client with ability to consume or produce into associated topic(svc).
func (s *Service) NewClient() *Client {
return &Client{
upstream: make(chan *Message),
broker: s.Broker(),
topics: make([]string, 0),
patterns: make([]string, 0),
}
}
// Publish one or multiple Channel.
func (s *Service) Publish(msg ...*Message) error {
broker := s.Broker()
if broker == nil {
return errors.New("no stopped broker")
}
return s.Broker().Publish(msg...)
}
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