-
Notifications
You must be signed in to change notification settings - Fork 451
/
query_coverter.go
77 lines (67 loc) · 2.3 KB
/
query_coverter.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
// Copyright (c) 2021 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 promremote
import (
"time"
"github.com/golang/snappy"
"github.com/pkg/errors"
"github.com/prometheus/prometheus/prompb"
"github.com/m3db/m3/src/query/storage"
)
var errNilQuery = errors.New("received nil query")
func convertAndEncodeWriteQuery(query *storage.WriteQuery) ([]byte, error) {
if query == nil {
return []byte{}, errNilQuery
}
promQuery := convertWriteQuery(query)
data, err := promQuery.Marshal()
if err != nil {
return nil, err
}
return snappy.Encode(nil, data), nil
}
func convertWriteQuery(query *storage.WriteQuery) *prompb.WriteRequest {
if query == nil {
return nil
}
ourLabels := storage.TagsToPromLabels(query.Tags())
labels := make([]prompb.Label, 0, len(ourLabels))
for _, tag := range ourLabels {
labels = append(labels, prompb.Label{
Name: string(tag.Name),
Value: string(tag.Value),
})
}
samples := make([]prompb.Sample, 0, len(query.Datapoints()))
for _, dp := range query.Datapoints() {
samples = append(samples, prompb.Sample{
Value: dp.Value,
Timestamp: dp.Timestamp.ToNormalizedTime(time.Millisecond),
})
}
return &prompb.WriteRequest{
Timeseries: []prompb.TimeSeries{
{
Labels: labels,
Samples: samples,
},
},
}
}