// Adds the specified metrics or updates them if they already exist.
func (sink *gcmSink) register(metrics []core.Metric) error {
sink.Lock()
defer sink.Unlock()
if sink.registered {
return nil
}
for _, metric := range metrics {
metricName := fullMetricName(metric.MetricDescriptor.Name)
if _, err := sink.gcmService.MetricDescriptors.Delete(sink.project, metricName).Do(); err != nil {
glog.Infof("[GCM] Deleting metric %v failed: %v", metricName, err)
}
labels := make([]*gcm.MetricDescriptorLabelDescriptor, 0)
// Node autoscaling metrics have special labels.
if core.IsNodeAutoscalingMetric(metric.MetricDescriptor.Name) {
// All and autoscaling. Do not populate for other filters.
if sink.metricFilter != metricsAll &&
sink.metricFilter != metricsOnlyAutoscaling {
continue
}
for _, l := range core.GcmNodeAutoscalingLabels() {
labels = append(labels, &gcm.MetricDescriptorLabelDescriptor{
Key: fullLabelName(l.Key),
Description: l.Description,
})
}
} else {
// Only all.
if sink.metricFilter != metricsAll {
continue
}
for _, l := range core.GcmLabels() {
labels = append(labels, &gcm.MetricDescriptorLabelDescriptor{
Key: fullLabelName(l.Key),
Description: l.Description,
})
}
}
t := &gcm.MetricDescriptorTypeDescriptor{
MetricType: metric.MetricDescriptor.Type.String(),
ValueType: metric.MetricDescriptor.ValueType.String(),
}
desc := &gcm.MetricDescriptor{
Name: metricName,
Project: sink.project,
Description: metric.MetricDescriptor.Description,
Labels: labels,
TypeDescriptor: t,
}
if _, err := sink.gcmService.MetricDescriptors.Create(sink.project, desc).Do(); err != nil {
return err
}
}
sink.registered = true
return nil
}
func (sink *gcmSink) getTimeseriesPoint(timestamp time.Time, labels map[string]string, metric string, val core.MetricValue, createTime time.Time) *gcm.TimeseriesPoint {
point := &gcm.Point{
Start: timestamp.Format(time.RFC3339),
End: timestamp.Format(time.RFC3339),
}
switch val.ValueType {
case core.ValueInt64:
point.Int64Value = &val.IntValue
case core.ValueFloat:
v := float64(val.FloatValue)
point.DoubleValue = &v
default:
glog.Errorf("Type not supported %v in %v", val.ValueType, metric)
return nil
}
// For cumulative metric use the provided start time.
if val.MetricType == core.MetricCumulative {
point.Start = createTime.Format(time.RFC3339)
}
finalLabels := make(map[string]string)
if core.IsNodeAutoscalingMetric(metric) {
// All and autoscaling. Do not populate for other filters.
if sink.metricFilter != metricsAll &&
sink.metricFilter != metricsOnlyAutoscaling {
return nil
}
finalLabels[fullLabelName(core.LabelHostname.Key)] = labels[core.LabelHostname.Key]
finalLabels[fullLabelName(core.LabelGCEResourceID.Key)] = labels[core.LabelHostID.Key]
finalLabels[fullLabelName(core.LabelGCEResourceType.Key)] = "instance"
} else {
// Only all.
if sink.metricFilter != metricsAll {
return nil
}
supportedLables := core.GcmLabels()
for key, value := range labels {
if _, ok := supportedLables[key]; ok {
finalLabels[fullLabelName(key)] = value
}
}
}
desc := &gcm.TimeseriesDescriptor{
Project: sink.project,
Labels: finalLabels,
Metric: fullMetricName(metric),
}
return &gcm.TimeseriesPoint{Point: point, TimeseriesDesc: desc}
}