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Backend Plugins: Convert test data source to use SDK contracts (#29916)

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Converts the core testdata data source to use the SDK contracts and by that 
implementing a backend plugin in core Grafana in similar manner as an external one.

Co-authored-by: Will Browne <will.browne@grafana.com>
Co-authored-by: Marcus Efraimsson <marefr@users.noreply.github.com>
Co-authored-by: Ryan McKinley <ryantxu@gmail.com>
This commit is contained in:
Marcus Efraimsson
2021-01-29 18:33:23 +01:00
committed by GitHub
parent b838125ef7
commit 043d6cd584
15 changed files with 1456 additions and 895 deletions
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4
pkg/api/api.go
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@@ -350,7 +350,6 @@ func (hs *HTTPServer) registerRoutes() {
// metrics
apiRoute.Post("/tsdb/query", bind(dtos.MetricRequest{}), routing.Wrap(hs.QueryMetrics))
apiRoute.Get("/tsdb/testdata/scenarios", routing.Wrap(GetTestDataScenarios))
apiRoute.Get("/tsdb/testdata/gensql", reqGrafanaAdmin, routing.Wrap(GenerateSQLTestData))
apiRoute.Get("/tsdb/testdata/random-walk", routing.Wrap(GetTestDataRandomWalk))
@@ -395,9 +394,6 @@ func (hs *HTTPServer) registerRoutes() {
annotationsRoute.Post("/graphite", reqEditorRole, bind(dtos.PostGraphiteAnnotationsCmd{}), routing.Wrap(PostGraphiteAnnotation))
})
// error test
r.Get("/metrics/error", routing.Wrap(GenerateError))
// short urls
apiRoute.Post("/short-urls", bind(dtos.CreateShortURLCmd{}), routing.Wrap(hs.createShortURL))
}, reqSignedIn)

37
pkg/api/metrics.go
View File

@@ -3,7 +3,6 @@ package api
import (
"context"
"errors"
"sort"
"github.com/grafana/grafana/pkg/expr"
"github.com/grafana/grafana/pkg/models"
@@ -13,7 +12,6 @@ import (
"github.com/grafana/grafana/pkg/bus"
"github.com/grafana/grafana/pkg/components/simplejson"
"github.com/grafana/grafana/pkg/tsdb"
"github.com/grafana/grafana/pkg/tsdb/testdatasource"
"github.com/grafana/grafana/pkg/util"
)
@@ -202,36 +200,6 @@ func (hs *HTTPServer) QueryMetrics(c *models.ReqContext, reqDto dtos.MetricReque
return response.JSON(statusCode, &resp)
}
// GET /api/tsdb/testdata/scenarios
func GetTestDataScenarios(c *models.ReqContext) response.Response {
result := make([]interface{}, 0)
scenarioIds := make([]string, 0)
for id := range testdatasource.ScenarioRegistry {
scenarioIds = append(scenarioIds, id)
}
sort.Strings(scenarioIds)
for _, scenarioId := range scenarioIds {
scenario := testdatasource.ScenarioRegistry[scenarioId]
result = append(result, map[string]interface{}{
"id": scenario.Id,
"name": scenario.Name,
"description": scenario.Description,
"stringInput": scenario.StringInput,
})
}
return response.JSON(200, &result)
}
// GenerateError generates a index out of range error
func GenerateError(c *models.ReqContext) response.Response {
var array []string
// nolint: govet
return response.JSON(200, array[20])
}
// GET /api/tsdb/testdata/gensql
func GenerateSQLTestData(c *models.ReqContext) response.Response {
if err := bus.Dispatch(&models.InsertSQLTestDataCommand{}); err != nil {
@@ -250,7 +218,10 @@ func GetTestDataRandomWalk(c *models.ReqContext) response.Response {
timeRange := tsdb.NewTimeRange(from, to)
request := &tsdb.TsdbQuery{TimeRange: timeRange}
dsInfo := &models.DataSource{Type: "testdata"}
dsInfo := &models.DataSource{
Type: "testdata",
JsonData: simplejson.New(),
}
request.Queries = append(request.Queries, &tsdb.Query{
RefId: "A",
IntervalMs: intervalMs,