mirror of https://github.com/prometheus/prometheus
70 lines
1.8 KiB
Go
70 lines
1.8 KiB
Go
// Copyright 2023 The Prometheus Authors
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package rules
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
"github.com/prometheus/prometheus/model/labels"
|
|
)
|
|
|
|
type ruleOrigin struct{}
|
|
|
|
// RuleDetail contains information about the rule that is being evaluated.
|
|
type RuleDetail struct {
|
|
Name string
|
|
Query string
|
|
Labels labels.Labels
|
|
Kind string
|
|
}
|
|
|
|
const (
|
|
KindAlerting = "alerting"
|
|
KindRecording = "recording"
|
|
)
|
|
|
|
// NewRuleDetail creates a RuleDetail from a given Rule.
|
|
func NewRuleDetail(r Rule) RuleDetail {
|
|
var kind string
|
|
switch r.(type) {
|
|
case *AlertingRule:
|
|
kind = KindAlerting
|
|
case *RecordingRule:
|
|
kind = KindRecording
|
|
default:
|
|
panic(fmt.Sprintf(`unknown rule type "%T"`, r))
|
|
}
|
|
|
|
return RuleDetail{
|
|
Name: r.Name(),
|
|
Query: r.Query().String(),
|
|
Labels: r.Labels(),
|
|
Kind: kind,
|
|
}
|
|
}
|
|
|
|
// NewOriginContext returns a new context with data about the origin attached.
|
|
func NewOriginContext(ctx context.Context, rule RuleDetail) context.Context {
|
|
return context.WithValue(ctx, ruleOrigin{}, rule)
|
|
}
|
|
|
|
// FromOriginContext returns the RuleDetail origin data from the context.
|
|
func FromOriginContext(ctx context.Context) RuleDetail {
|
|
if rule, ok := ctx.Value(ruleOrigin{}).(RuleDetail); ok {
|
|
return rule
|
|
}
|
|
return RuleDetail{}
|
|
}
|