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57 lines
1.9 KiB
Go
57 lines
1.9 KiB
Go
// Copyright 2013 Prometheus Team
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package metric
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import (
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"github.com/prometheus/prometheus/model"
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"time"
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)
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type StalenessPolicy struct {
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DeltaAllowance time.Duration
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}
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// MetricPersistence is a system for storing metric samples in a persistence
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// layer.
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type MetricPersistence interface {
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// A storage system may rely on external resources and thusly should be
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// closed when finished.
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Close() error
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// Record a new sample in the storage layer.
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AppendSample(model.Sample) error
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// Get all of the metric fingerprints that are associated with the provided
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// label set.
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GetFingerprintsForLabelSet(model.LabelSet) ([]*model.Fingerprint, error)
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// Get all of the metric fingerprints that are associated for a given label
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// name.
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GetFingerprintsForLabelName(model.LabelName) ([]*model.Fingerprint, error)
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GetMetricForFingerprint(model.Fingerprint) (*model.Metric, error)
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GetValueAtTime(model.Metric, time.Time, StalenessPolicy) (*model.Sample, error)
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GetBoundaryValues(*model.Metric, *model.Interval, *StalenessPolicy) (*model.Sample, *model.Sample, error)
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GetRangeValues(*model.Metric, *model.Interval, *StalenessPolicy) (*model.SampleSet, error)
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GetAllMetricNames() ([]string, error)
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// DIAGNOSTIC FUNCTIONS PENDING DELETION BELOW HERE
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GetAllLabelNames() ([]string, error)
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GetAllLabelPairs() ([]model.LabelSet, error)
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GetAllMetrics() ([]model.LabelSet, error)
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}
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