exchange: Use new collector interface (#1685)

internal/collector/exchange/exchange_active_sync.go

@@ -0,0 +1,101 @@
+package exchange
+
+import (
+	"errors"
+	"fmt"
+	"log/slog"
+
+	"github.com/prometheus-community/windows_exporter/internal/perfdata"
+	v1 "github.com/prometheus-community/windows_exporter/internal/perfdata/v1"
+	"github.com/prometheus-community/windows_exporter/internal/types"
+	"github.com/prometheus/client_golang/prometheus"
+)
+
+const (
+	requestsPerSec      = "Requests/sec"
+	pingCommandsPending = "Ping Commands Pending"
+	syncCommandsPerSec  = "Sync Commands/sec"
+)
+
+// Perflib: [25138] MSExchange ActiveSync.
+type perflibActiveSync struct {
+	RequestsPerSec      float64 `perflib:"Requests/sec"`
+	PingCommandsPending float64 `perflib:"Ping Commands Pending"`
+	SyncCommandsPerSec  float64 `perflib:"Sync Commands/sec"`
+}
+
+func (c *Collector) buildActiveSync() error {
+	counters := []string{
+		requestsPerSec,
+		pingCommandsPending,
+		syncCommandsPerSec,
+	}
+
+	var err error
+
+	c.perfDataCollectorActiveSync, err = perfdata.NewCollector(perfdata.V1, "MSExchange ActiveSync", perfdata.AllInstances, counters)
+	if err != nil {
+		return fmt.Errorf("failed to create MSExchange ActiveSync collector: %w", err)
+	}
+
+	return nil
+}
+
+func (c *Collector) collectActiveSync(ctx *types.ScrapeContext, logger *slog.Logger, ch chan<- prometheus.Metric) error {
+	var data []perflibActiveSync
+
+	if err := v1.UnmarshalObject(ctx.PerfObjects["MSExchange ActiveSync"], &data, logger); err != nil {
+		return err
+	}
+
+	for _, instance := range data {
+		ch <- prometheus.MustNewConstMetric(
+			c.activeSyncRequestsPerSec,
+			prometheus.CounterValue,
+			instance.RequestsPerSec,
+		)
+		ch <- prometheus.MustNewConstMetric(
+			c.pingCommandsPending,
+			prometheus.GaugeValue,
+			instance.PingCommandsPending,
+		)
+		ch <- prometheus.MustNewConstMetric(
+			c.syncCommandsPerSec,
+			prometheus.CounterValue,
+			instance.SyncCommandsPerSec,
+		)
+	}
+
+	return nil
+}
+
+func (c *Collector) collectPDHActiveSync(ch chan<- prometheus.Metric) error {
+	perfData, err := c.perfDataCollectorActiveSync.Collect()
+	if err != nil {
+		return fmt.Errorf("failed to collect MSExchange ActiveSync metrics: %w", err)
+	}
+
+	if len(perfData) == 0 {
+		return errors.New("perflib query for MSExchange ActiveSync returned empty result set")
+	}
+
+	for _, data := range perfData {
+		ch <- prometheus.MustNewConstMetric(
+			c.activeSyncRequestsPerSec,
+			prometheus.CounterValue,
+			data[requestsPerSec].FirstValue,
+		)
+		ch <- prometheus.MustNewConstMetric(
+			c.pingCommandsPending,
+			prometheus.GaugeValue,
+			data[pingCommandsPending].FirstValue,
+		)
+		ch <- prometheus.MustNewConstMetric(
+			c.syncCommandsPerSec,
+			prometheus.CounterValue,
+			data[syncCommandsPerSec].FirstValue,
+		)
+	}
+
+	return nil
+}