Publish ITWorx Pulse source

internal/host/adapter.go

@@ -0,0 +1,38 @@
+package host
+
+import (
+	"context"
+	"time"
+)
+
+// RawSource is the narrow read-only boundary implemented by an authenticated
+// agent or another approved host telemetry source. It returns one bounded
+// source snapshot; it cannot execute arbitrary host commands.
+type RawSource interface {
+	Snapshot(context.Context) (RawSnapshot, error)
+}
+
+type Adapter struct {
+	Source RawSource
+	Limits Limits
+	Policy Policy
+	Now    func() time.Time
+}
+
+func (a Adapter) Snapshot(ctx context.Context) (Snapshot, error) {
+	if err := ctx.Err(); err != nil {
+		return Snapshot{}, err
+	}
+	if a.Source == nil {
+		return UnknownSnapshot(time.Now().UTC(), "host", "agent", "source_unavailable"), nil
+	}
+	raw, err := a.Source.Snapshot(ctx)
+	if err != nil {
+		return Snapshot{}, err
+	}
+	now := time.Now().UTC()
+	if a.Now != nil {
+		now = a.Now()
+	}
+	return Normalize(raw, now, a.Limits, a.Policy)
+}