func New(cfg Config) (*Collector, error) {
sensorCfgs := map[int]SensorConfig{}
for sensorIdStr, sensorCfg := range cfg.Sensor {
sensorId, err := strconv.Atoi(sensorIdStr)
if err != nil || sensorId < 0 {
return nil, fmt.Errorf("bad sensor ID %q - must be an integer >= 0", sensorId)
}
sensorCfgs[sensorId] = sensorCfg
}
var metrics util.MetricCollection
c := &Collector{
cfg: cfg,
sensorCfgs: sensorCfgs,
histSensorsSeen: map[int]struct{}{},
lastSeenDsb: -1,
realtimeUpdates: metrics.NewCounterVec(
promm.CounterOpts{
Namespace: namespace, Name: "realtime_by_sensor_count",
Help: "Count of realtime updates received, by sensor. (count)",
ConstLabels: cfg.Labels,
},
[]string{"sensor"},
),
historyUpdates: metrics.NewCounter(
promm.CounterOpts{
Namespace: namespace, Name: "history_count",
Help: "Count of historical updates received. (count)",
ConstLabels: cfg.Labels,
},
),
temperature: metrics.NewGauge(promm.GaugeOpts{
Namespace: namespace, Name: "temperature_degc",
Help: "Instananeous measured temperature at the monitor. (degrees celcius)",
ConstLabels: cfg.Labels,
}),
powerDraw: metrics.NewGaugeVec(
promm.GaugeOpts{
Namespace: namespace, Name: "power_draw_watts",
Help: "Instananeous power drawn measured by sensor. (watts)",
ConstLabels: cfg.Labels,
},
[]string{"sensor", "channel"},
),
powerUsage: metrics.NewCounterVec(
promm.CounterOpts{
Namespace: namespace, Name: "power_usage_kwhr",
Help: "Cumulative (sum of all channels) power usage measured by sensor. " +
"This is accumulated from the latest 2-hourly historical data, so the " +
"timeseries resolution is coarse. (kilowatt hours)",
ConstLabels: cfg.Labels,
},
[]string{"sensor"},
),
}
c.metrics = metrics
return c, nil
}
