fa1e6cce5e
* add function to convert StateTransition to LokiEntry * add QueryResultBuilder * update backtesting to produce result similar to historian * make shouldRecord public * filter out noop transitions * add experimental front-end * add new fields * move conversion of api model to AlertRule to validation * add extra labels * calculate tick timestamp using the same logic as in scheduler * implement correct logic of calculating first evaluation timestamp * add uid, group and folder uid they are needed for jitter strategy * add JitterOffsetInDuration and JitterStrategy.String() * add config `backtesting_max_evaluations` to [unified_alerting] (not documented for now) * remove obsolete tests * elevate permisisons for backtesting endpoint * move backtesting to separate dir
31 lines
656 B
Go
31 lines
656 B
Go
package backtesting
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import (
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"context"
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"time"
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"github.com/grafana/grafana/pkg/services/ngalert/eval"
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)
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// QueryEvaluator is evaluator of regular alert rule queries
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type queryEvaluator struct {
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eval eval.ConditionEvaluator
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}
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func (d *queryEvaluator) Eval(ctx context.Context, from time.Time, interval time.Duration, evaluations int, callback callbackFunc) error {
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for idx, now := 0, from; idx < evaluations; idx, now = idx+1, now.Add(interval) {
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results, err := d.eval.Evaluate(ctx, now)
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if err != nil {
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return err
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}
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cont, err := callback(idx, now, results)
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if err != nil {
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return err
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}
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if !cont {
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break
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}
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}
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return nil
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}
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