Datasource/Cloudwatch: Adds support for Cloudwatch Logs (#23566)

* Datasource/Cloudwatch: Adds support for Cloudwatch Logs * Fix rebase leftover * Use jsurl for AWS url serialization * WIP: Temporary workaround for CLIQ metrics * Only allow up to 20 log groups to be selected * WIP additional changes * More changes based on feedback * More changes based on PR feedback * Fix strict null errors
2020-04-25 22:48:20 +02:00
parent af00fa7214
commit f48ba11d4c
78 changed files with 3914 additions and 399 deletions
@@ -0,0 +1,81 @@
+package cloudwatch
+
+import (
+	"time"
+
+	"github.com/aws/aws-sdk-go/service/cloudwatchlogs"
+	"github.com/grafana/grafana-plugin-sdk-go/data"
+)
+
+func logsResultsToDataframes(response *cloudwatchlogs.GetQueryResultsOutput) (*data.Frame, error) {
+	rowCount := len(response.Results)
+	fieldValues := make(map[string]interface{})
+	for i, row := range response.Results {
+		for _, resultField := range row {
+			// Strip @ptr field from results as it's not needed
+			if *resultField.Field == "@ptr" {
+				continue
+			}
+
+			if *resultField.Field == "@timestamp" {
+				if _, exists := fieldValues[*resultField.Field]; !exists {
+					fieldValues[*resultField.Field] = make([]*time.Time, rowCount)
+				}
+
+				parsedTime, err := time.Parse(CLOUDWATCH_TS_FORMAT, *resultField.Value)
+				if err != nil {
+					return nil, err
+				}
+
+				fieldValues[*resultField.Field].([]*time.Time)[i] = &parsedTime
+			} else {
+				if _, exists := fieldValues[*resultField.Field]; !exists {
+					// Check if field is time field
+					if _, err := time.Parse(CLOUDWATCH_TS_FORMAT, *resultField.Value); err == nil {
+						fieldValues[*resultField.Field] = make([]*time.Time, rowCount)
+					} else {
+						fieldValues[*resultField.Field] = make([]*string, rowCount)
+					}
+				}
+
+				if timeField, ok := fieldValues[*resultField.Field].([]*time.Time); ok {
+					parsedTime, err := time.Parse(CLOUDWATCH_TS_FORMAT, *resultField.Value)
+					if err != nil {
+						return nil, err
+					}
+
+					timeField[i] = &parsedTime
+				} else {
+					fieldValues[*resultField.Field].([]*string)[i] = resultField.Value
+				}
+			}
+		}
+	}
+
+	newFields := make([]*data.Field, 0)
+	for fieldName, vals := range fieldValues {
+		newFields = append(newFields, data.NewField(fieldName, nil, vals))
+
+		if fieldName == "@timestamp" {
+			newFields[len(newFields)-1].SetConfig(&data.FieldConfig{Title: "Time"})
+		} else if fieldName == "@logStream" || fieldName == "@log" {
+			newFields[len(newFields)-1].SetConfig(
+				&data.FieldConfig{
+					Custom: map[string]interface{}{
+						"Hidden": true,
+					},
+				},
+			)
+		}
+	}
+
+	frame := data.NewFrame("CloudWatchLogsResponse", newFields...)
+	frame.Meta = &data.FrameMeta{
+		Custom: map[string]interface{}{
+			"Status":     *response.Status,
+			"Statistics": *response.Statistics,
+		},
+	}
+
+	return frame, nil
+}