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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| package deletion | ||
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| import ( | ||
| "github.com/grafana/loki/pkg/logproto" | ||
| "github.com/grafana/loki/pkg/logql" | ||
| "github.com/grafana/loki/pkg/logql/log" | ||
| "github.com/grafana/loki/pkg/logql/syntax" | ||
| ) | ||
|
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| func SetupPipeline(req logql.SelectLogParams, p log.Pipeline) (log.Pipeline, error) { | ||
| if len(req.Deletes) == 0 { | ||
| return p, nil | ||
| } | ||
|
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| filters, err := deleteFilters(req.Deletes) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| return log.NewFilteringPipeline(filters, p), nil | ||
| } | ||
|
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| func SetupExtractor(req logql.SelectSampleParams, se log.SampleExtractor) (log.SampleExtractor, error) { | ||
| if len(req.Deletes) == 0 { | ||
| return se, nil | ||
| } | ||
|
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| filters, err := deleteFilters(req.Deletes) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| return log.NewFilteringSampleExtractor(filters, se), nil | ||
| } | ||
|
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| func deleteFilters(deletes []*logproto.Delete) ([]log.PipelineFilter, error) { | ||
| var filters []log.PipelineFilter | ||
| for _, d := range deletes { | ||
| expr, err := syntax.ParseLogSelector(d.Selector, true) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| pipeline, err := expr.Pipeline() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| filters = append(filters, log.PipelineFilter{ | ||
| Start: d.Start, | ||
| End: d.End, | ||
| Matchers: expr.Matchers(), | ||
| Pipeline: pipeline, | ||
| }) | ||
| } | ||
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| return filters, nil | ||
| } |