func streamResults(eventChannel *events.EventChannel, w http.ResponseWriter, r *http.Request, m manager.Manager) error {
cn, ok := w.(http.CloseNotifier)
if !ok {
return errors.New("could not access http.CloseNotifier")
}
flusher, ok := w.(http.Flusher)
if !ok {
return errors.New("could not access http.Flusher")
}
w.Header().Set("Transfer-Encoding", "chunked")
w.WriteHeader(http.StatusOK)
flusher.Flush()
enc := json.NewEncoder(w)
for {
select {
case <-cn.CloseNotify():
m.CloseEventChannel(eventChannel.GetWatchId())
return nil
case ev := <-eventChannel.GetChannel():
err := enc.Encode(ev)
if err != nil {
glog.Errorf("error encoding message %+v for result stream: %v", ev, err)
}
flusher.Flush()
}
}
}