func pushCounter(l *lua.State, name string) {
counter, _, err := aggregations.GetCounter(name)
if err != nil {
lua.Errorf(l, "%s", err)
panic("unreachable")
}
l.NewTable()
for name, fn := range counterFunctions {
l.PushGoFunction(fn(counter))
l.SetField(-2, name)
}
}
func parseCounterRequest(remoteAddress string, line []string, errorChannel chan error) error {
counterName := line[0]
valueString := line[1]
isSetOperation := valueString[0] == '='
if isSetOperation {
valueString = strings.TrimPrefix(valueString, "=")
}
value, err := strconv.ParseInt(valueString, 10, 64)
if err != nil {
return gotelemetry.NewErrorWithFormat(
400, "Graphite => [%s] Invalid value %s: %s",
nil,
remoteAddress,
line[1],
err.Error(),
)
}
counter, isCreated, err := aggregations.GetCounter(counterName)
if isCreated {
errorChannel <- gotelemetry.NewLogError("Graphite => Started receiving graphite data for '%s'", counterName)
}
if err != nil {
return gotelemetry.NewErrorWithFormat(
500, "Graphite => [%s] Unable to get counter %s: %s",
nil,
remoteAddress,
counterName,
err.Error(),
)
}
if isSetOperation {
counter.SetValue(value)
} else {
counter.Increment(value)
}
return nil
}