func viewAdapterForInstantQuery(node Node, timestamp time.Time) (viewAdapter *viewAdapter, err error) {
analyzer := NewQueryAnalyzer()
analyzer.AnalyzeQueries(node)
viewBuilder := metric.NewViewRequestBuilder()
for fingerprint, rangeDuration := range analyzer.FullRanges {
viewBuilder.GetMetricRange(fingerprint, timestamp.Add(-rangeDuration), timestamp)
}
for fingerprint := range analyzer.IntervalRanges {
viewBuilder.GetMetricAtTime(fingerprint, timestamp)
}
view, err := queryStorage.MakeView(viewBuilder, time.Duration(60)*time.Second)
if err == nil {
viewAdapter = NewViewAdapter(view)
}
return
}
func viewAdapterForRangeQuery(node Node, start time.Time, end time.Time, interval time.Duration) (viewAdapter *viewAdapter, err error) {
analyzer := NewQueryAnalyzer()
analyzer.AnalyzeQueries(node)
viewBuilder := metric.NewViewRequestBuilder()
for fingerprint, rangeDuration := range analyzer.FullRanges {
// TODO: we should support GetMetricRangeAtInterval() or similar ops in the view builder.
for t := start; t.Before(end); t = t.Add(interval) {
viewBuilder.GetMetricRange(fingerprint, t.Add(-rangeDuration), t)
}
}
for fingerprint := range analyzer.IntervalRanges {
viewBuilder.GetMetricAtInterval(fingerprint, start, end, interval)
}
view, err := queryStorage.MakeView(viewBuilder, time.Duration(60)*time.Second)
if err == nil {
viewAdapter = NewViewAdapter(view)
}
return
}