Prevent new tag from being overwritten

Resolves #4374
This commit is contained in:
Greg Linton 2018-07-05 10:23:58 -06:00
parent bf076dab73
commit 2e724d8d02
1 changed files with 9 additions and 3 deletions

View File

@ -34,7 +34,7 @@ const sampleConfig = `
# key = "request"
# ## All the power of the Go regular expressions available here
# ## For example, named subgroups
# pattern = "^/api(?P<method>/[\\w/]+)\\S*"
# pattern = "^/api(?P<method>/[\\w/]+)\\S*"
# replacement = "${method}"
# ## If result_key is present, a new field will be created
# ## instead of changing existing field
@ -67,7 +67,10 @@ 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))
k, v := r.convert(converter, value)
if k != "" && v != "" {
metric.AddTag(k, v)
}
}
}
@ -75,7 +78,10 @@ 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))
k, v := r.convert(converter, value)
if k != "" && v != "" {
metric.AddField(r.convert(converter, value))
}
}
}
}