func validateEvent(actualEvent *api.Event, expectedEvent *api.Event, t *testing.T) (*api.Event, error) {
expectCompression := expectedEvent.Count > 1
// Just check that the timestamp was set.
if actualEvent.FirstTimestamp.IsZero() || actualEvent.LastTimestamp.IsZero() {
t.Errorf("timestamp wasn't set: %#v", *actualEvent)
}
if actualEvent.FirstTimestamp.Equal(actualEvent.LastTimestamp.Time) {
if expectCompression {
t.Errorf("FirstTimestamp (%q) and LastTimestamp (%q) must be equal to indicate only one occurance of the event, but were different. Actual Event: %#v", actualEvent.FirstTimestamp, actualEvent.LastTimestamp, *actualEvent)
}
} else {
if !expectCompression {
t.Errorf("FirstTimestamp (%q) and LastTimestamp (%q) must be different to indicate event compression happened, but were the same. Actual Event: %#v", actualEvent.FirstTimestamp, actualEvent.LastTimestamp, *actualEvent)
}
}
actualFirstTimestamp := actualEvent.FirstTimestamp
actualLastTimestamp := actualEvent.LastTimestamp
// Temp clear time stamps for comparison because actual values don't matter for comparison
actualEvent.FirstTimestamp = expectedEvent.FirstTimestamp
actualEvent.LastTimestamp = expectedEvent.LastTimestamp
// Check that name has the right prefix.
if n, en := actualEvent.Name, expectedEvent.Name; !strings.HasPrefix(n, en) {
t.Errorf("Name '%v' does not contain prefix '%v'", n, en)
}
actualEvent.Name = expectedEvent.Name
if e, a := expectedEvent, actualEvent; !reflect.DeepEqual(e, a) {
t.Errorf("diff: %s", util.ObjectGoPrintDiff(e, a))
}
actualEvent.FirstTimestamp = actualFirstTimestamp
actualEvent.LastTimestamp = actualLastTimestamp
return actualEvent, nil
}
// Log an event to the etcd backend.
func (kl *Kubelet) LogEvent(event *api.Event) error {
if kl.EtcdClient == nil {
return fmt.Errorf("no etcd client connection.")
}
event.Timestamp = time.Now().Unix()
data, err := json.Marshal(event)
if err != nil {
return err
}
var response *etcd.Response
response, err = kl.EtcdClient.AddChild(fmt.Sprintf("/events/%s", event.Container.Name), string(data), 60*60*48 /* 2 days */)
// TODO(bburns) : examine response here.
if err != nil {
glog.Errorf("Error writing event: %s\n", err)
if response != nil {
glog.Infof("Response was: %#v\n", *response)
}
}
return err
}
// recordEvent attempts to write event to a sink. It returns true if the event
// was successfully recorded or discarded, false if it should be retried.
// If updateExistingEvent is false, it creates a new event, otherwise it updates
// existing event.
func recordEvent(sink EventSink, event *api.Event, updateExistingEvent bool) bool {
var newEvent *api.Event
var err error
if updateExistingEvent {
newEvent, err = sink.Update(event)
}
// Update can fail because the event may have been removed and it no longer exists.
if !updateExistingEvent || (updateExistingEvent && isKeyNotFoundError(err)) {
// Making sure that ResourceVersion is empty on creation
event.ResourceVersion = ""
newEvent, err = sink.Create(event)
}
if err == nil {
addOrUpdateEvent(newEvent)
return true
}
// If we can't contact the server, then hold everything while we keep trying.
// Otherwise, something about the event is malformed and we should abandon it.
switch err.(type) {
case *client.RequestConstructionError:
// We will construct the request the same next time, so don't keep trying.
glog.Errorf("Unable to construct event '%#v': '%v' (will not retry!)", event, err)
return true
case *errors.StatusError:
if errors.IsAlreadyExists(err) {
glog.V(5).Infof("Server rejected event '%#v': '%v' (will not retry!)", event, err)
} else {
glog.Errorf("Server rejected event '%#v': '%v' (will not retry!)", event, err)
}
return true
case *errors.UnexpectedObjectError:
// We don't expect this; it implies the server's response didn't match a
// known pattern. Go ahead and retry.
default:
// This case includes actual http transport errors. Go ahead and retry.
}
glog.Errorf("Unable to write event: '%v' (may retry after sleeping)", err)
return false
}