// statToValue converts from a stats.Stat type to a JSON representable value.
// This is preferred to just calling the String() for things like numbers, so that
// InfluxDB can also represent the metrics as numbers.
// TODO(aaijazi): this needs to be extended to support better serialization of other types..
// It's probably good to do this after InfluxDB 0.9 is released, as it has has better support
// for arbitrary dict values (as tags).
func statToValue(v expvar.Var) interface{} {
switch v := v.(type) {
case *stats.Float:
return v.Get()
case *stats.Int:
return v.Get()
case stats.FloatFunc:
return v()
case stats.IntFunc:
return v()
default:
return v.String()
}
}
