func (m *MinMax) Add(in telegraf.Metric) {
id := in.HashID()
if _, ok := m.cache[id]; !ok {
// hit an uncached metric, create caches for first time:
a := aggregate{
name: in.Name(),
tags: in.Tags(),
fields: make(map[string]minmax),
}
for k, v := range in.Fields() {
if fv, ok := convert(v); ok {
a.fields[k] = minmax{
min: fv,
max: fv,
}
}
}
m.cache[id] = a
} else {
for k, v := range in.Fields() {
if fv, ok := convert(v); ok {
if _, ok := m.cache[id].fields[k]; !ok {
// hit an uncached field of a cached metric
m.cache[id].fields[k] = minmax{
min: fv,
max: fv,
}
continue
}
if fv < m.cache[id].fields[k].min {
tmp := m.cache[id].fields[k]
tmp.min = fv
m.cache[id].fields[k] = tmp
} else if fv > m.cache[id].fields[k].max {
tmp := m.cache[id].fields[k]
tmp.max = fv
m.cache[id].fields[k] = tmp
}
}
}
}
}