fn transform()

in src/metrics/meter.rs [151:178]

• 28 lines of code
• 1 McCabe index (conditional complexity)

    fn transform(&self, metricer: &Metricer) -> MeterData {
        MeterData {
            service: metricer.service_name().to_owned(),
            service_instance: metricer.instance_name().to_owned(),
            timestamp: fetch_time(TimePeriod::Metric),
            metric: Some(Metric::SingleValue(MeterSingleValue {
                name: self.id.name.to_owned(),
                labels: self
                    .id
                    .labels
                    .iter()
                    .map(|(name, value)| Label {
                        name: name.clone(),
                        value: value.clone(),
                    })
                    .collect(),
                value: match self.mode {
                    CounterMode::INCREMENT => self.get(),
                    CounterMode::RATE => {
                        let current_count = self.get();
                        let previous_count =
                            self.previous_count.swap(current_count, Ordering::Acquire);
                        current_count - previous_count
                    }
                },
            })),
        }
    }