/
azuremonitor.go
126 lines (103 loc) · 3.3 KB
/
azuremonitor.go
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package azuremonitor
import (
"context"
"fmt"
"net/http"
"regexp"
"github.com/Fenrislol/grafana/pkg/infra/log"
"github.com/Fenrislol/grafana/pkg/models"
"github.com/Fenrislol/grafana/pkg/tsdb"
)
var (
azlog log.Logger
legendKeyFormat *regexp.Regexp
)
// AzureMonitorExecutor executes queries for the Azure Monitor datasource - all four services
type AzureMonitorExecutor struct {
httpClient *http.Client
dsInfo *models.DataSource
}
// NewAzureMonitorExecutor initializes a http client
func NewAzureMonitorExecutor(dsInfo *models.DataSource) (tsdb.TsdbQueryEndpoint, error) {
httpClient, err := dsInfo.GetHttpClient()
if err != nil {
return nil, err
}
return &AzureMonitorExecutor{
httpClient: httpClient,
dsInfo: dsInfo,
}, nil
}
func init() {
azlog = log.New("tsdb.azuremonitor")
tsdb.RegisterTsdbQueryEndpoint("grafana-azure-monitor-datasource", NewAzureMonitorExecutor)
legendKeyFormat = regexp.MustCompile(`\{\{\s*(.+?)\s*\}\}`)
}
// Query takes in the frontend queries, parses them into the query format
// expected by chosen Azure Monitor service (Azure Monitor, App Insights etc.)
// executes the queries against the API and parses the response into
// the right format
func (e *AzureMonitorExecutor) Query(ctx context.Context, dsInfo *models.DataSource, tsdbQuery *tsdb.TsdbQuery) (*tsdb.Response, error) {
var err error
var azureMonitorQueries []*tsdb.Query
var applicationInsightsQueries []*tsdb.Query
var azureLogAnalyticsQueries []*tsdb.Query
var insightsAnalyticsQueries []*tsdb.Query
for _, query := range tsdbQuery.Queries {
queryType := query.Model.Get("queryType").MustString("")
switch queryType {
case "Azure Monitor":
azureMonitorQueries = append(azureMonitorQueries, query)
case "Application Insights":
applicationInsightsQueries = append(applicationInsightsQueries, query)
case "Azure Log Analytics":
azureLogAnalyticsQueries = append(azureLogAnalyticsQueries, query)
case "Insights Analytics":
insightsAnalyticsQueries = append(insightsAnalyticsQueries, query)
default:
return nil, fmt.Errorf("Alerting not supported for %s", queryType)
}
}
azDatasource := &AzureMonitorDatasource{
httpClient: e.httpClient,
dsInfo: e.dsInfo,
}
aiDatasource := &ApplicationInsightsDatasource{
httpClient: e.httpClient,
dsInfo: e.dsInfo,
}
alaDatasource := &AzureLogAnalyticsDatasource{
httpClient: e.httpClient,
dsInfo: e.dsInfo,
}
iaDatasource := &InsightsAnalyticsDatasource{
httpClient: e.httpClient,
dsInfo: e.dsInfo,
}
azResult, err := azDatasource.executeTimeSeriesQuery(ctx, azureMonitorQueries, tsdbQuery.TimeRange)
if err != nil {
return nil, err
}
aiResult, err := aiDatasource.executeTimeSeriesQuery(ctx, applicationInsightsQueries, tsdbQuery.TimeRange)
if err != nil {
return nil, err
}
alaResult, err := alaDatasource.executeTimeSeriesQuery(ctx, azureLogAnalyticsQueries, tsdbQuery.TimeRange)
if err != nil {
return nil, err
}
iaResult, err := iaDatasource.executeTimeSeriesQuery(ctx, insightsAnalyticsQueries, tsdbQuery.TimeRange)
if err != nil {
return nil, err
}
for k, v := range aiResult.Results {
azResult.Results[k] = v
}
for k, v := range alaResult.Results {
azResult.Results[k] = v
}
for k, v := range iaResult.Results {
azResult.Results[k] = v
}
return azResult, nil
}