GoogleCloudMonitoring: Refactor SLO queries (#59421)

* GoogleCloudMonitoring: Refactor metricType input * Remove preprocessor in favor of secondary inputs * GoogleCloudMonitoring: Refactor SLO queries * GoogleCloudMonitoring: Refactor util functions (#59482) * GoogleCloudMonitoring: Remove unnecessary util functions * GoogleCloudMonitoring: Refactor run function (#59505)
2022-11-30 17:23:05 +01:00
parent 4ec08c4317
commit 2e64ea652e
9 changed files with 487 additions and 471 deletions
@@ -0,0 +1,75 @@
+package cloudmonitoring
+
+import (
+	"context"
+	"fmt"
+	"net/url"
+	"time"
+
+	"github.com/grafana/grafana-plugin-sdk-go/backend"
+
+	"github.com/grafana/grafana/pkg/infra/tracing"
+)
+
+func (sloQ *cloudMonitoringSLO) run(ctx context.Context, req *backend.QueryDataRequest,
+	s *Service, dsInfo datasourceInfo, tracer tracing.Tracer) (*backend.DataResponse, cloudMonitoringResponse, string, error) {
+	return runTimeSeriesRequest(ctx, sloQ.logger, req, s, dsInfo, tracer, sloQ.parameters.ProjectName, sloQ.params, nil)
+}
+
+func (sloQ *cloudMonitoringSLO) parseResponse(queryRes *backend.DataResponse,
+	response cloudMonitoringResponse, executedQueryString string) error {
+	return parseTimeSeriesResponse(queryRes, response, executedQueryString, sloQ, sloQ.params, []string{})
+}
+
+func (sloQ *cloudMonitoringSLO) buildDeepLink() string {
+	return ""
+}
+
+func (sloQ *cloudMonitoringSLO) getRefID() string {
+	return sloQ.refID
+}
+
+func (sloQ *cloudMonitoringSLO) getAliasBy() string {
+	return sloQ.aliasBy
+}
+
+func (sloQ *cloudMonitoringSLO) getParameter(i string) string {
+	switch i {
+	case "project":
+		return sloQ.parameters.ProjectName
+	case "service":
+		return sloQ.parameters.ServiceId
+	case "slo":
+		return sloQ.parameters.SloId
+	case "selector":
+		return sloQ.parameters.SelectorName
+	default:
+		return ""
+	}
+}
+
+func (sloQ *cloudMonitoringSLO) getFilter() string {
+	sloName := fmt.Sprintf("projects/%s/services/%s/serviceLevelObjectives/%s", sloQ.parameters.ProjectName, sloQ.parameters.ServiceId, sloQ.parameters.SloId)
+
+	if sloQ.parameters.SelectorName == "select_slo_burn_rate" {
+		return fmt.Sprintf(`%s("%s", "%s")`, sloQ.parameters.SelectorName, sloName, sloQ.parameters.LookbackPeriod)
+	} else {
+		return fmt.Sprintf(`%s("%s")`, sloQ.parameters.SelectorName, sloName)
+	}
+}
+
+func (sloQ *cloudMonitoringSLO) setParams(startTime time.Time, endTime time.Time, durationSeconds int, intervalMs int64) {
+	params := url.Values{}
+
+	params.Add("interval.startTime", startTime.UTC().Format(time.RFC3339))
+	params.Add("interval.endTime", endTime.UTC().Format(time.RFC3339))
+
+	params.Add("filter", sloQ.getFilter())
+	params.Add("aggregation.alignmentPeriod", calculateAlignmentPeriod(sloQ.parameters.AlignmentPeriod, intervalMs, durationSeconds))
+	if sloQ.parameters.SelectorName == "select_slo_health" {
+		params.Add("aggregation.perSeriesAligner", "ALIGN_MEAN")
+	} else {
+		params.Add("aggregation.perSeriesAligner", "ALIGN_NEXT_OLDER")
+	}
+	sloQ.params = params
+}