simpler amqp sink approach (#351)

This commit is contained in:
Michael Quigley 2023-06-21 11:33:43 -04:00
parent aabf695bec
commit 5a2f6a1f72
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GPG Key ID: 9B60314A9DD20A62
3 changed files with 21 additions and 33 deletions

View File

@ -31,38 +31,39 @@ func loadAmqpSinkConfig(v interface{}, _ *cf.Options) (interface{}, error) {
} }
type amqpSink struct { type amqpSink struct {
cfg *AmqpSinkConfig cfg *AmqpSinkConfig
conn *amqp.Connection conn *amqp.Connection
ch *amqp.Channel ch *amqp.Channel
queue amqp.Queue queue amqp.Queue
join chan struct{} connected bool
} }
func newAmqpSink(cfg *AmqpSinkConfig) (*amqpSink, error) { func newAmqpSink(cfg *AmqpSinkConfig) (*amqpSink, error) {
return &amqpSink{ as := &amqpSink{
cfg: cfg, cfg: cfg,
join: make(chan struct{}), }
}, nil return as, nil
}
func (s *amqpSink) Start() (join chan struct{}, err error) {
logrus.Info("started")
return s.join, nil
} }
func (s *amqpSink) Handle(event ZitiEventJson) error { func (s *amqpSink) Handle(event ZitiEventJson) error {
if !s.connected {
if err := s.connect(); err != nil {
return err
}
logrus.Infof("connected to '%v'", s.cfg.Url)
s.connected = true
}
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second) ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel() defer cancel()
logrus.Infof("pushing '%v'", event) logrus.Infof("pushing '%v'", event)
return s.ch.PublishWithContext(ctx, "", s.queue.Name, false, false, amqp.Publishing{ err := s.ch.PublishWithContext(ctx, "", s.queue.Name, false, false, amqp.Publishing{
ContentType: "application/json", ContentType: "application/json",
Body: []byte(event), Body: []byte(event),
}) })
} if err != nil {
s.connected = false
func (s *amqpSink) Stop() { }
close(s.join) return err
logrus.Info("stopped")
} }
func (s *amqpSink) connect() (err error) { func (s *amqpSink) connect() (err error) {
@ -70,18 +71,13 @@ func (s *amqpSink) connect() (err error) {
if err != nil { if err != nil {
return errors.Wrap(err, "error dialing amqp broker") return errors.Wrap(err, "error dialing amqp broker")
} }
s.ch, err = s.conn.Channel() s.ch, err = s.conn.Channel()
if err != nil { if err != nil {
return errors.Wrap(err, "error getting amqp channel") return errors.Wrap(err, "error getting amqp channel")
} }
s.queue, err = s.ch.QueueDeclare(s.cfg.QueueName, true, false, false, false, nil) s.queue, err = s.ch.QueueDeclare(s.cfg.QueueName, true, false, false, false, nil)
if err != nil { if err != nil {
return errors.Wrap(err, "error declaring queue") return errors.Wrap(err, "error declaring queue")
} }
logrus.Infof("connected to amqp broker at '%v'", s.cfg.Url)
return nil return nil
} }

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@ -14,7 +14,6 @@ type Bridge struct {
src ZitiEventJsonSource src ZitiEventJsonSource
srcJoin chan struct{} srcJoin chan struct{}
snk ZitiEventJsonSink snk ZitiEventJsonSink
snkJoin chan struct{}
events chan ZitiEventMsg events chan ZitiEventMsg
close chan struct{} close chan struct{}
join chan struct{} join chan struct{}
@ -40,9 +39,6 @@ func NewBridge(cfg *BridgeConfig) (*Bridge, error) {
} }
func (b *Bridge) Start() (join chan struct{}, err error) { func (b *Bridge) Start() (join chan struct{}, err error) {
if b.snkJoin, err = b.snk.Start(); err != nil {
return nil, err
}
if b.srcJoin, err = b.src.Start(b.events); err != nil { if b.srcJoin, err = b.src.Start(b.events); err != nil {
return nil, err return nil, err
} }
@ -76,9 +72,7 @@ func (b *Bridge) Start() (join chan struct{}, err error) {
func (b *Bridge) Stop() { func (b *Bridge) Stop() {
b.src.Stop() b.src.Stop()
b.snk.Stop()
close(b.close) close(b.close)
<-b.srcJoin <-b.srcJoin
<-b.snkJoin
<-b.join <-b.join
} }

View File

@ -79,7 +79,5 @@ type ZitiEventJsonSource interface {
} }
type ZitiEventJsonSink interface { type ZitiEventJsonSink interface {
Start() (join chan struct{}, err error)
Handle(event ZitiEventJson) error Handle(event ZitiEventJson) error
Stop()
} }