grafana/pkg/tsdb/cloudmonitoring/annotation_query.go
Ato Araki 561920f18b
Cloud monitoring: fix missing title and text from cloud monitoring annotations (#27187)
* cloudmonitoring: fix empty title and text annotation

* cloudmonitoring: use metricQuery value
2020-09-08 13:18:41 +03:00

123 lines
3.5 KiB
Go

package cloudmonitoring
import (
"context"
"strconv"
"strings"
"time"
"github.com/grafana/grafana/pkg/tsdb"
)
func (e *CloudMonitoringExecutor) executeAnnotationQuery(ctx context.Context, tsdbQuery *tsdb.TsdbQuery) (*tsdb.Response, error) {
result := &tsdb.Response{
Results: make(map[string]*tsdb.QueryResult),
}
firstQuery := tsdbQuery.Queries[0]
queries, err := e.buildQueries(tsdbQuery)
if err != nil {
return nil, err
}
queryRes, resp, err := e.executeQuery(ctx, queries[0], tsdbQuery)
if err != nil {
return nil, err
}
metricQuery := firstQuery.Model.Get("metricQuery")
title := metricQuery.Get("title").MustString()
text := metricQuery.Get("text").MustString()
tags := metricQuery.Get("tags").MustString()
err = e.parseToAnnotations(queryRes, resp, queries[0], title, text, tags)
result.Results[firstQuery.RefId] = queryRes
return result, err
}
func (e *CloudMonitoringExecutor) parseToAnnotations(queryRes *tsdb.QueryResult, data cloudMonitoringResponse, query *cloudMonitoringQuery, title string, text string, tags string) error {
annotations := make([]map[string]string, 0)
for _, series := range data.TimeSeries {
// reverse the order to be ascending
for i := len(series.Points) - 1; i >= 0; i-- {
point := series.Points[i]
value := strconv.FormatFloat(point.Value.DoubleValue, 'f', 6, 64)
if series.ValueType == "STRING" {
value = point.Value.StringValue
}
annotation := make(map[string]string)
annotation["time"] = point.Interval.EndTime.UTC().Format(time.RFC3339)
annotation["title"] = formatAnnotationText(title, value, series.Metric.Type, series.Metric.Labels, series.Resource.Labels)
annotation["tags"] = tags
annotation["text"] = formatAnnotationText(text, value, series.Metric.Type, series.Metric.Labels, series.Resource.Labels)
annotations = append(annotations, annotation)
}
}
transformAnnotationToTable(annotations, queryRes)
return nil
}
func transformAnnotationToTable(data []map[string]string, result *tsdb.QueryResult) {
table := &tsdb.Table{
Columns: make([]tsdb.TableColumn, 4),
Rows: make([]tsdb.RowValues, 0),
}
table.Columns[0].Text = "time"
table.Columns[1].Text = "title"
table.Columns[2].Text = "tags"
table.Columns[3].Text = "text"
for _, r := range data {
values := make([]interface{}, 4)
values[0] = r["time"]
values[1] = r["title"]
values[2] = r["tags"]
values[3] = r["text"]
table.Rows = append(table.Rows, values)
}
result.Tables = append(result.Tables, table)
result.Meta.Set("rowCount", len(data))
slog.Info("anno", "len", len(data))
}
func formatAnnotationText(annotationText string, pointValue string, metricType string, metricLabels map[string]string, resourceLabels map[string]string) string {
result := legendKeyFormat.ReplaceAllFunc([]byte(annotationText), func(in []byte) []byte {
metaPartName := strings.Replace(string(in), "{{", "", 1)
metaPartName = strings.Replace(metaPartName, "}}", "", 1)
metaPartName = strings.TrimSpace(metaPartName)
if metaPartName == "metric.type" {
return []byte(metricType)
}
metricPart := replaceWithMetricPart(metaPartName, metricType)
if metricPart != nil {
return metricPart
}
if metaPartName == "metric.value" {
return []byte(pointValue)
}
metaPartName = strings.Replace(metaPartName, "metric.label.", "", 1)
if val, exists := metricLabels[metaPartName]; exists {
return []byte(val)
}
metaPartName = strings.Replace(metaPartName, "resource.label.", "", 1)
if val, exists := resourceLabels[metaPartName]; exists {
return []byte(val)
}
return in
})
return string(result)
}