362f447d9f
* cmd/statreceiver: lua-scriptable stat receiver Change-Id: I3ce0fe3f1ef4b1f4f27eed90bac0e91cfecf22d7 * some updates Change-Id: I7c3485adcda1278fce01ae077b4761b3ddb9fb7a * more comments Change-Id: I0bb22993cd934c3d40fc1da80d07e49e686b80dd * linter fixes Change-Id: Ied014304ecb9aadcf00a6b66ad28f856a428d150 * catch errors Change-Id: I6e1920f1fd941e66199b30bc427285c19769fc70 * review feedback Change-Id: I9d4051851eab18970c5f5ddcf4ff265508e541d3 * errorgroup improvements Change-Id: I4699dda3022f0485fbb50c9dafe692d3921734ff * too tricky the previous thing was better for memory with lots of errors at a time but https://play.golang.org/p/RweTMRjoSCt is too much of a foot gun Change-Id: I23f0b3d77dd4288fcc20b3756a7110359576bf44
49 lines
1.0 KiB
Go
49 lines
1.0 KiB
Go
// Copyright (C) 2018 Storj Labs, Inc.
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// See LICENSE for copying information.
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package main
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import (
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"bytes"
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"strings"
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"time"
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"unicode"
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)
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// Sanitizer is a MetricDest that replaces nonalphanumeric characters with
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// underscores.
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type Sanitizer struct {
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m MetricDest
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}
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// NewSanitizer creates a Sanitizer that sends sanitized metrics to m.
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func NewSanitizer(m MetricDest) *Sanitizer { return &Sanitizer{m: m} }
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// Metric implements MetricDest
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func (s *Sanitizer) Metric(application, instance string, key []byte,
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val float64, ts time.Time) error {
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return s.m.Metric(sanitize(application), sanitize(instance), sanitizeb(key),
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val, ts)
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}
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func sanitize(val string) string {
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return strings.Replace(strings.Map(safechar, val), "..", ".", -1)
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}
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func sanitizeb(val []byte) []byte {
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return bytes.Replace(bytes.Map(safechar, val), []byte(".."), []byte("."), -1)
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}
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func safechar(r rune) rune {
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if unicode.IsLetter(r) || unicode.IsNumber(r) {
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return r
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}
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switch r {
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case '/':
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return '.'
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case '.', '-':
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return r
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}
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return '_'
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}
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