/
tag_filter_exact_match.go
74 lines (64 loc) · 2.42 KB
/
tag_filter_exact_match.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
// Copyright (c) 2019 The Jaeger Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package dbmodel
import (
"github.com/jaegertracing/jaeger/model"
)
// ExactMatchTagFilter filters out all tags in its tags slice
type ExactMatchTagFilter struct {
tags map[string]struct{}
dropMatches bool
}
// newExactMatchTagFilter creates a ExactMatchTagFilter with the provided tags. Passing
// dropMatches true will exhibit blacklist behavior. Passing dropMatches false
// will exhibit whitelist behavior.
func newExactMatchTagFilter(tags []string, dropMatches bool) ExactMatchTagFilter {
mapTags := make(map[string]struct{})
for _, t := range tags {
mapTags[t] = struct{}{}
}
return ExactMatchTagFilter{
tags: mapTags,
dropMatches: dropMatches,
}
}
// NewBlacklistFilter is a convenience method for creating a blacklist ExactMatchTagFilter
func NewBlacklistFilter(tags []string) ExactMatchTagFilter {
return newExactMatchTagFilter(tags, true)
}
// NewWhitelistFilter is a convenience method for creating a whitelist ExactMatchTagFilter
func NewWhitelistFilter(tags []string) ExactMatchTagFilter {
return newExactMatchTagFilter(tags, false)
}
// FilterProcessTags implements TagFilter
func (tf ExactMatchTagFilter) FilterProcessTags(span *model.Span, processTags model.KeyValues) model.KeyValues {
return tf.filter(processTags)
}
// FilterTags implements TagFilter
func (tf ExactMatchTagFilter) FilterTags(span *model.Span, tags model.KeyValues) model.KeyValues {
return tf.filter(tags)
}
// FilterLogFields implements TagFilter
func (tf ExactMatchTagFilter) FilterLogFields(span *model.Span, logFields model.KeyValues) model.KeyValues {
return tf.filter(logFields)
}
func (tf ExactMatchTagFilter) filter(tags model.KeyValues) model.KeyValues {
var filteredTags model.KeyValues
for _, t := range tags {
if _, ok := tf.tags[t.Key]; ok == !tf.dropMatches {
filteredTags = append(filteredTags, t)
}
}
return filteredTags
}