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Introduce TSDB service (#31520)

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* Introduce TSDB service

Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>

Co-authored-by: Erik Sundell <erik.sundell87@gmail.com>
Co-authored-by: Will Browne <will.browne@grafana.com>
Co-authored-by: Torkel Ödegaard <torkel@grafana.org>
Co-authored-by: Will Browne <wbrowne@users.noreply.github.com>
Co-authored-by: Zoltán Bedi <zoltan.bedi@gmail.com>
This commit is contained in:
Arve Knudsen
2021-03-08 07:02:49 +01:00
committed by GitHub
co-authored by Erik Sundell Will Browne Torkel Ödegaard Will Browne Zoltán Bedi
parent c899bf3592
commit b79e61656a
203 changed files with 5269 additions and 4776 deletions
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pkg/expr/nodes.go
+4 -4
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@@ -82,7 +82,7 @@ func (gn *CMDNode) NodeType() NodeType {
// Execute runs the node and adds the results to vars. If the node requires
// other nodes they must have already been executed and their results must
// already by in vars.
func (gn *CMDNode) Execute(ctx context.Context, vars mathexp.Vars) (mathexp.Results, error) {
func (gn *CMDNode) Execute(ctx context.Context, vars mathexp.Vars, s *Service) (mathexp.Results, error) {
return gn.Command.Execute(ctx, vars)
}
@@ -142,7 +142,7 @@ func (dn *DSNode) NodeType() NodeType {
return TypeDatasourceNode
}
func buildDSNode(dp *simple.DirectedGraph, rn *rawNode, orgID int64) (*DSNode, error) {
func (s *Service) buildDSNode(dp *simple.DirectedGraph, rn *rawNode, orgID int64) (*DSNode, error) {
encodedQuery, err := json.Marshal(rn.Query)
if err != nil {
return nil, err
@@ -203,7 +203,7 @@ func buildDSNode(dp *simple.DirectedGraph, rn *rawNode, orgID int64) (*DSNode, e
// Execute runs the node and adds the results to vars. If the node requires
// other nodes they must have already been executed and their results must
// already by in vars.
func (dn *DSNode) Execute(ctx context.Context, vars mathexp.Vars) (mathexp.Results, error) {
func (dn *DSNode) Execute(ctx context.Context, vars mathexp.Vars, s *Service) (mathexp.Results, error) {
pc := backend.PluginContext{
OrgID: dn.orgID,
DataSourceInstanceSettings: &backend.DataSourceInstanceSettings{
@@ -223,7 +223,7 @@ func (dn *DSNode) Execute(ctx context.Context, vars mathexp.Vars) (mathexp.Resul
},
}
resp, err := QueryData(ctx, &backend.QueryDataRequest{
resp, err := s.queryData(ctx, &backend.QueryDataRequest{
PluginContext: pc,
Queries: q,
})