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af5a7d1078
* Added Chunk versions of all iterating methods. It all starts in Querier/ChunkQuerier. The plan is that Storage will implement both chunked and samples. * Added Seek to chunks.Iterator interface for iterating over chunks. * Mock, NewTestSeries, SampleSeriesIterator and ChunkSeriesIterator are now available from storage package and reuses instead of being recreated in many places. NewConcreteSeries was created to replace concreteSeries. * NewMergeChunkQuerier was added; Both this and NewMergeQuerier are now using generigMergeQuerier to share the code. Generic code was added. * Both Compactor and block Querier use *exactly* the same iterators. (blockChunkSeriesSet). * Added some TODO for further simplifications in next PRs. Signed-off-by: Bartlomiej Plotka <bwplotka@gmail.com>
65 lines
1.6 KiB
Go
65 lines
1.6 KiB
Go
// Copyright 2017 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 "github.com/prometheus/prometheus/tsdb/chunkenc"
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type chunkSetToSeriesSet struct {
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ChunkSeriesSet
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chkIterErr error
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sameSeriesChunks []Series
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bufIterator chunkenc.Iterator
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}
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func NewSeriesSetFromChunkSeriesSet(chk ChunkSeriesSet) SeriesSet {
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return &chunkSetToSeriesSet{ChunkSeriesSet: chk}
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}
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func (c *chunkSetToSeriesSet) Next() bool {
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if c.Err() != nil || !c.ChunkSeriesSet.Next() {
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return false
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}
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iter := c.ChunkSeriesSet.At().Iterator()
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c.sameSeriesChunks = c.sameSeriesChunks[:0]
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for iter.Next() {
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c.sameSeriesChunks = append(c.sameSeriesChunks, &ConcreteSeries{
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labels: c.ChunkSeriesSet.At().Labels(),
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SampleIteratorFn: func() chunkenc.Iterator {
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return iter.At().Chunk.Iterator(c.bufIterator)
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},
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})
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}
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if iter.Err() != nil {
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c.chkIterErr = iter.Err()
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return false
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}
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return true
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}
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func (c *chunkSetToSeriesSet) At() Series {
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return ChainedSeriesMerge(c.sameSeriesChunks...)
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}
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func (c *chunkSetToSeriesSet) Err() error {
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if c.chkIterErr != nil {
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return c.chkIterErr
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}
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return c.ChunkSeriesSet.Err()
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}
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