mirror of
https://github.com/kubernetes-sigs/prometheus-adapter.git
synced 2026-04-06 09:47:54 +00:00
77 lines
2.6 KiB
Go
77 lines
2.6 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package fake
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import (
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"context"
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"fmt"
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prom "github.com/directxman12/k8s-prometheus-adapter/pkg/client"
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pmodel "github.com/prometheus/common/model"
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)
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// FakePrometheusClient is a fake instance of prom.Client
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type FakePrometheusClient struct {
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// AcceptableInterval is the interval in which to return queries
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AcceptableInterval pmodel.Interval
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// ErrQueries are queries that result in an error (whether from Query or Series)
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ErrQueries map[prom.Selector]error
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// Series are non-error responses to partial Series calls
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SeriesResults map[prom.Selector][]prom.Series
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// QueryResults are non-error responses to Query
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QueryResults map[prom.Selector]prom.QueryResult
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}
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func (c *FakePrometheusClient) Series(_ context.Context, interval pmodel.Interval, selectors ...prom.Selector) ([]prom.Series, error) {
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if (interval.Start != 0 && interval.Start < c.AcceptableInterval.Start) || (interval.End != 0 && interval.End > c.AcceptableInterval.End) {
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return nil, fmt.Errorf("interval [%v, %v] for query is outside range [%v, %v]", interval.Start, interval.End, c.AcceptableInterval.Start, c.AcceptableInterval.End)
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}
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res := []prom.Series{}
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for _, sel := range selectors {
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if err, found := c.ErrQueries[sel]; found {
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return nil, err
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}
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if series, found := c.SeriesResults[sel]; found {
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res = append(res, series...)
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}
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}
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return res, nil
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}
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func (c *FakePrometheusClient) Query(_ context.Context, t pmodel.Time, query prom.Selector) (prom.QueryResult, error) {
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if t < c.AcceptableInterval.Start || t > c.AcceptableInterval.End {
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return prom.QueryResult{}, fmt.Errorf("time %v for query is outside range [%v, %v]", t, c.AcceptableInterval.Start, c.AcceptableInterval.End)
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}
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if err, found := c.ErrQueries[query]; found {
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return prom.QueryResult{}, err
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}
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if res, found := c.QueryResults[query]; found {
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return res, nil
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}
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return prom.QueryResult{
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Type: pmodel.ValVector,
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Vector: &pmodel.Vector{},
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}, nil
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}
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func (c *FakePrometheusClient) QueryRange(_ context.Context, r prom.Range, query prom.Selector) (prom.QueryResult, error) {
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return prom.QueryResult{}, nil
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}
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