Beispiel #1
0
// receive reads result from the decoder in a loop and sends down the result channel.
func (sw *StreamWatcher) receive() {
	defer close(sw.result)
	defer sw.Stop()
	defer utilruntime.HandleCrash()
	for {
		action, obj, err := sw.source.Decode()
		if err != nil {
			// Ignore expected error.
			if sw.stopping() {
				return
			}
			switch err {
			case io.EOF:
				// watch closed normally
			case io.ErrUnexpectedEOF:
				glog.V(1).Infof("Unexpected EOF during watch stream event decoding: %v", err)
			default:
				msg := "Unable to decode an event from the watch stream: %v"
				if net.IsProbableEOF(err) {
					glog.V(5).Infof(msg, err)
				} else {
					glog.Errorf(msg, err)
				}
			}
			return
		}
		sw.result <- Event{
			Type:   action,
			Object: obj,
		}
	}
}
Beispiel #2
0
// StartEventWatcher starts sending events received from this EventBroadcaster to the given event handler function.
// The return value can be ignored or used to stop recording, if desired.
func (eventBroadcaster *eventBroadcasterImpl) StartEventWatcher(eventHandler func(*v1.Event)) watch.Interface {
	watcher := eventBroadcaster.Watch()
	go func() {
		defer utilruntime.HandleCrash()
		for {
			watchEvent, open := <-watcher.ResultChan()
			if !open {
				return
			}
			event, ok := watchEvent.Object.(*v1.Event)
			if !ok {
				// This is all local, so there's no reason this should
				// ever happen.
				continue
			}
			eventHandler(event)
		}
	}()
	return watcher
}
Beispiel #3
0
func (recorder *recorderImpl) generateEvent(object runtime.Object, timestamp unversioned.Time, eventtype, reason, message string) {
	ref, err := v1.GetReference(object)
	if err != nil {
		glog.Errorf("Could not construct reference to: '%#v' due to: '%v'. Will not report event: '%v' '%v' '%v'", object, err, eventtype, reason, message)
		return
	}

	if !validateEventType(eventtype) {
		glog.Errorf("Unsupported event type: '%v'", eventtype)
		return
	}

	event := recorder.makeEvent(ref, eventtype, reason, message)
	event.Source = recorder.source

	go func() {
		// NOTE: events should be a non-blocking operation
		defer utilruntime.HandleCrash()
		recorder.Action(watch.Added, event)
	}()
}