mirror of https://github.com/grafana/grafana.git
96 lines
2.4 KiB
Go
96 lines
2.4 KiB
Go
package wrapper
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import (
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"context"
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"errors"
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sdk "github.com/grafana/grafana-plugin-sdk-go/datasource"
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"github.com/grafana/grafana-plugin-sdk-go/genproto/pluginv2"
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"github.com/grafana/grafana/pkg/components/simplejson"
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"github.com/grafana/grafana/pkg/infra/log"
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"github.com/grafana/grafana/pkg/models"
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"github.com/grafana/grafana/pkg/tsdb"
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)
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func NewDatasourcePluginWrapperV2(log log.Logger, plugin sdk.DatasourcePlugin) *DatasourcePluginWrapperV2 {
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return &DatasourcePluginWrapperV2{DatasourcePlugin: plugin, logger: log}
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}
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type DatasourcePluginWrapperV2 struct {
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sdk.DatasourcePlugin
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logger log.Logger
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}
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func (tw *DatasourcePluginWrapperV2) Query(ctx context.Context, ds *models.DataSource, query *tsdb.TsdbQuery) (*tsdb.Response, error) {
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jsonData, err := ds.JsonData.MarshalJSON()
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if err != nil {
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return nil, err
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}
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pbQuery := &pluginv2.DatasourceRequest{
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Datasource: &pluginv2.DatasourceInfo{
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Name: ds.Name,
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Type: ds.Type,
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Url: ds.Url,
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Id: ds.Id,
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OrgId: ds.OrgId,
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JsonData: string(jsonData),
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DecryptedSecureJsonData: ds.SecureJsonData.Decrypt(),
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},
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TimeRange: &pluginv2.TimeRange{
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FromRaw: query.TimeRange.From,
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ToRaw: query.TimeRange.To,
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ToEpochMs: query.TimeRange.GetToAsMsEpoch(),
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FromEpochMs: query.TimeRange.GetFromAsMsEpoch(),
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},
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Queries: []*pluginv2.DatasourceQuery{},
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}
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for _, q := range query.Queries {
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modelJSON, err := q.Model.MarshalJSON()
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if err != nil {
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return nil, err
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}
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pbQuery.Queries = append(pbQuery.Queries, &pluginv2.DatasourceQuery{
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ModelJson: string(modelJSON),
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IntervalMs: q.IntervalMs,
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RefId: q.RefId,
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MaxDataPoints: q.MaxDataPoints,
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})
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}
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pbres, err := tw.DatasourcePlugin.Query(ctx, pbQuery)
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if err != nil {
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return nil, err
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}
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res := &tsdb.Response{
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Results: map[string]*tsdb.QueryResult{},
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}
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for _, r := range pbres.Results {
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qr := &tsdb.QueryResult{
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RefId: r.RefId,
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}
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if r.Error != "" {
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qr.Error = errors.New(r.Error)
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qr.ErrorString = r.Error
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}
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if r.MetaJson != "" {
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metaJSON, err := simplejson.NewJson([]byte(r.MetaJson))
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if err != nil {
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tw.logger.Error("Error parsing JSON Meta field: " + err.Error())
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}
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qr.Meta = metaJSON
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}
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qr.Dataframes = r.Dataframes
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res.Results[r.RefId] = qr
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}
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return res, nil
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}
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