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84 lines
2.4 KiB
84 lines
2.4 KiB
// Copyright 2020 The Prometheus 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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// |
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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 storage |
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import ( |
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"math" |
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"github.com/prometheus/prometheus/pkg/labels" |
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"github.com/prometheus/prometheus/tsdb/chunkenc" |
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"github.com/prometheus/prometheus/tsdb/chunks" |
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"github.com/prometheus/prometheus/tsdb/tsdbutil" |
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) |
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type MockSeries struct { |
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labels labels.Labels |
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SampleIteratorFn func() chunkenc.Iterator |
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} |
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func NewListSeries(lset labels.Labels, s []tsdbutil.Sample) *MockSeries { |
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return &MockSeries{ |
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labels: lset, |
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SampleIteratorFn: func() chunkenc.Iterator { |
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return NewListSeriesIterator(samples(s)) |
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}, |
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} |
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} |
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func (s *MockSeries) Labels() labels.Labels { return s.labels } |
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func (s *MockSeries) Iterator() chunkenc.Iterator { return s.SampleIteratorFn() } |
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type MockChunkSeries struct { |
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labels labels.Labels |
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ChunkIteratorFn func() chunks.Iterator |
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} |
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func NewListChunkSeriesFromSamples(lset labels.Labels, samples ...[]tsdbutil.Sample) *MockChunkSeries { |
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var chks []chunks.Meta |
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return &MockChunkSeries{ |
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labels: lset, |
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ChunkIteratorFn: func() chunks.Iterator { |
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// Inefficient chunks encoding implementation, not caring about chunk size. |
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for _, s := range samples { |
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chks = append(chks, tsdbutil.ChunkFromSamples(s)) |
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} |
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return NewListChunkSeriesIterator(chks...) |
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}, |
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} |
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} |
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func (s *MockChunkSeries) Labels() labels.Labels { return s.labels } |
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func (s *MockChunkSeries) Iterator() chunks.Iterator { return s.ChunkIteratorFn() } |
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func ExpandSamples(iter chunkenc.Iterator) ([]tsdbutil.Sample, error) { |
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var result []tsdbutil.Sample |
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for iter.Next() { |
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t, v := iter.At() |
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// NaNs can't be compared normally, so substitute for another value. |
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if math.IsNaN(v) { |
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v = -42 |
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} |
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result = append(result, sample{t, v}) |
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} |
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return result, iter.Err() |
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} |
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func ExpandChunks(iter chunks.Iterator) ([]chunks.Meta, error) { |
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var result []chunks.Meta |
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for iter.Next() { |
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result = append(result, iter.At()) |
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} |
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return result, iter.Err() |
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}
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