/
segments.go
91 lines (81 loc) · 2.79 KB
/
segments.go
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// Copyright (c) 2020 Uber Technologies, Inc
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE
package fs
import (
"time"
"github.com/m3db/m3/src/dbnode/generated/proto/index"
"github.com/m3db/m3/src/dbnode/storage/bootstrap/result"
idxpersist "github.com/m3db/m3/src/m3ninx/persist"
xtime "github.com/m3db/m3/src/x/time"
)
type segments struct {
absoluteFilepaths []string
shardRanges result.ShardTimeRanges
volumeType idxpersist.IndexVolumeType
volumeIndex int
blockStart xtime.UnixNano
}
// NewSegments returns an on disk segments for an index info file.
func NewSegments(
info index.IndexVolumeInfo,
volumeIndex int,
absoluteFilepaths []string,
) Segments {
sr := result.NewShardTimeRanges()
indexBlockStart := xtime.UnixNano(info.BlockStart)
indexBlockRange := xtime.Range{
Start: indexBlockStart,
End: indexBlockStart.Add(time.Duration(info.BlockSize)),
}
for _, shard := range info.Shards {
ranges, ok := sr.Get(shard)
if !ok {
ranges = xtime.NewRanges()
sr.Set(shard, ranges)
}
ranges.AddRange(indexBlockRange)
}
volumeType := idxpersist.DefaultIndexVolumeType
if info.IndexVolumeType != nil {
volumeType = idxpersist.IndexVolumeType(info.IndexVolumeType.Value)
}
return &segments{
shardRanges: sr,
volumeType: volumeType,
volumeIndex: volumeIndex,
absoluteFilepaths: absoluteFilepaths,
blockStart: indexBlockStart,
}
}
func (o *segments) ShardTimeRanges() result.ShardTimeRanges {
return o.shardRanges
}
func (o *segments) VolumeType() idxpersist.IndexVolumeType {
return o.volumeType
}
func (o *segments) AbsoluteFilePaths() []string {
return o.absoluteFilepaths
}
func (o *segments) VolumeIndex() int {
return o.volumeIndex
}
func (o *segments) BlockStart() xtime.UnixNano {
return o.blockStart
}