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Don't set values when pattern doesn't match in regex processor (#4396)

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This commit is contained in:
Alexander Shepelin
2018-07-07 02:13:46 +03:00
committed by Daniel Nelson
parent a0ece79191
commit 35d2f90d6c
2 changed files with 8 additions and 5 deletions
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8
plugins/processors/regex/regex.go
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@@ -67,7 +67,9 @@ func (r *Regex) Apply(in ...telegraf.Metric) []telegraf.Metric {
for _, metric := range in {
for _, converter := range r.Tags {
if value, ok := metric.GetTag(converter.Key); ok {
metric.AddTag(r.convert(converter, value))
if key, newValue := r.convert(converter, value); newValue != "" {
metric.AddTag(key, newValue)
}
}
}
@@ -75,7 +77,9 @@ func (r *Regex) Apply(in ...telegraf.Metric) []telegraf.Metric {
if value, ok := metric.GetField(converter.Key); ok {
switch value := value.(type) {
case string:
metric.AddField(r.convert(converter, value))
if key, newValue := r.convert(converter, value); newValue != "" {
metric.AddField(key, newValue)
}
}
}
}