mirror of
https://github.com/prometheus/prometheus.git
synced 2024-12-30 07:59:40 -08:00
101 lines
3 KiB
Go
101 lines
3 KiB
Go
// Copyright 2016 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 local
|
|
|
|
import (
|
|
"time"
|
|
|
|
"github.com/prometheus/common/model"
|
|
"golang.org/x/net/context"
|
|
|
|
"github.com/prometheus/prometheus/storage/metric"
|
|
)
|
|
|
|
// NoopStorage is a dummy storage for use when Prometheus's local storage is
|
|
// disabled. It throws away any appended samples and returns empty results.
|
|
type NoopStorage struct{}
|
|
|
|
// Start implements Storage.
|
|
func (s *NoopStorage) Start() (err error) {
|
|
return nil
|
|
}
|
|
|
|
// Stop implements Storage.
|
|
func (s *NoopStorage) Stop() error {
|
|
return nil
|
|
}
|
|
|
|
// WaitForIndexing implements Storage.
|
|
func (s *NoopStorage) WaitForIndexing() {
|
|
}
|
|
|
|
// Querier implements Storage.
|
|
func (s *NoopStorage) Querier() (Querier, error) {
|
|
return &NoopQuerier{}, nil
|
|
}
|
|
|
|
// NoopQuerier is a dummy Querier for use when Prometheus's local storage is
|
|
// disabled. It is returned by the NoopStorage Querier method and always returns
|
|
// empty results.
|
|
type NoopQuerier struct{}
|
|
|
|
// Close implements Querier.
|
|
func (s *NoopQuerier) Close() error {
|
|
return nil
|
|
}
|
|
|
|
// LastSampleForLabelMatchers implements Querier.
|
|
func (s *NoopQuerier) LastSampleForLabelMatchers(ctx context.Context, cutoff model.Time, matcherSets ...metric.LabelMatchers) (model.Vector, error) {
|
|
return nil, nil
|
|
}
|
|
|
|
// QueryRange implements Querier
|
|
func (s *NoopQuerier) QueryRange(ctx context.Context, from, through model.Time, matchers ...*metric.LabelMatcher) ([]SeriesIterator, error) {
|
|
return nil, nil
|
|
}
|
|
|
|
// QueryInstant implements Querier.
|
|
func (s *NoopQuerier) QueryInstant(ctx context.Context, ts model.Time, stalenessDelta time.Duration, matchers ...*metric.LabelMatcher) ([]SeriesIterator, error) {
|
|
return nil, nil
|
|
}
|
|
|
|
// MetricsForLabelMatchers implements Querier.
|
|
func (s *NoopQuerier) MetricsForLabelMatchers(
|
|
ctx context.Context,
|
|
from, through model.Time,
|
|
matcherSets ...metric.LabelMatchers,
|
|
) ([]metric.Metric, error) {
|
|
return nil, nil
|
|
}
|
|
|
|
// LabelValuesForLabelName implements Querier.
|
|
func (s *NoopQuerier) LabelValuesForLabelName(ctx context.Context, labelName model.LabelName) (model.LabelValues, error) {
|
|
return nil, nil
|
|
}
|
|
|
|
// DropMetricsForLabelMatchers implements Storage.
|
|
func (s *NoopStorage) DropMetricsForLabelMatchers(ctx context.Context, matchers ...*metric.LabelMatcher) (int, error) {
|
|
return 0, nil
|
|
}
|
|
|
|
// Append implements Storage.
|
|
func (s *NoopStorage) Append(sample *model.Sample) error {
|
|
return nil
|
|
}
|
|
|
|
// NeedsThrottling implements Storage.
|
|
func (s *NoopStorage) NeedsThrottling() bool {
|
|
return false
|
|
}
|