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discover.go
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discover.go
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// Copyright 2021 IBM Corp.
//
// 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 reporter
import (
"time"
"emperror.dev/errors"
"github.com/prometheus/common/model"
"k8s.io/apimachinery/pkg/types"
)
func getQueries(matrixVals model.Matrix) (map[types.NamespacedName][]*meterDefPromQuery, []error) {
results := make(map[types.NamespacedName][]*meterDefPromQuery)
errs := []error{}
for _, matrix := range matrixVals {
name, _ := getMatrixValue(matrix.Metric, "name")
namespace, _ := getMatrixValue(matrix.Metric, "namespace")
meterGroup, _ := getMatrixValue(matrix.Metric, "meter_group")
meterKind, _ := getMatrixValue(matrix.Metric, "meter_kind")
// skip 0 data groups
if meterGroup == "" && meterKind == "" {
continue
}
var min, max time.Time
for i, v := range matrix.Values {
if i == 0 {
min = v.Timestamp.Time()
max = v.Timestamp.Time().Add(time.Hour)
}
start, end := v.Timestamp.Time(), v.Timestamp.Time().Add(time.Hour)
if start.Before(min) {
min = start
}
if end.After(max) {
max = end
}
}
max = max.UTC()
min = min.UTC()
promQuery, err := buildPromQuery(matrix.Metric, min, max)
if err != nil {
errs = append(errs, errors.WrapWithDetails(err, "failed to build query", "meterdef_name", name, "meterdef_namespace", namespace))
continue
}
logger.Info("getting query", "query", promQuery.String(), "start", min, "end", max)
if v, ok := results[promQuery.query.MeterDef]; ok {
results[promQuery.query.MeterDef] = append(v, promQuery)
} else {
results[promQuery.query.MeterDef] = []*meterDefPromQuery{promQuery}
}
}
return results, errs
}