forked from influxdata/telegraf
-
Notifications
You must be signed in to change notification settings - Fork 15
/
filter.go
92 lines (79 loc) · 1.91 KB
/
filter.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
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
package models
import (
"strings"
"github.com/influxdata/influxdb/client/v2"
"github.com/influxdata/telegraf/internal"
)
// TagFilter is the name of a tag, and the values on which to filter
type TagFilter struct {
Name string
Filter []string
}
// Filter containing drop/pass and tagdrop/tagpass rules
type Filter struct {
Drop []string
Pass []string
TagDrop []TagFilter
TagPass []TagFilter
IsActive bool
}
func (f Filter) ShouldPointPass(point *client.Point) bool {
if f.ShouldPass(point.Name()) && f.ShouldTagsPass(point.Tags()) {
return true
}
return false
}
// ShouldPass returns true if the metric should pass, false if should drop
// based on the drop/pass filter parameters
func (f Filter) ShouldPass(key string) bool {
if f.Pass != nil {
for _, pat := range f.Pass {
// TODO remove HasPrefix check, leaving it for now for legacy support.
// Cam, 2015-12-07
if strings.HasPrefix(key, pat) || internal.Glob(pat, key) {
return true
}
}
return false
}
if f.Drop != nil {
for _, pat := range f.Drop {
// TODO remove HasPrefix check, leaving it for now for legacy support.
// Cam, 2015-12-07
if strings.HasPrefix(key, pat) || internal.Glob(pat, key) {
return false
}
}
return true
}
return true
}
// ShouldTagsPass returns true if the metric should pass, false if should drop
// based on the tagdrop/tagpass filter parameters
func (f Filter) ShouldTagsPass(tags map[string]string) bool {
if f.TagPass != nil {
for _, pat := range f.TagPass {
if tagval, ok := tags[pat.Name]; ok {
for _, filter := range pat.Filter {
if internal.Glob(filter, tagval) {
return true
}
}
}
}
return false
}
if f.TagDrop != nil {
for _, pat := range f.TagDrop {
if tagval, ok := tags[pat.Name]; ok {
for _, filter := range pat.Filter {
if internal.Glob(filter, tagval) {
return false
}
}
}
}
return true
}
return true
}