Restructure solution layout by module

src/Concelier/__Libraries/StellaOps.Concelier.Connector.Vndr.Vmware/VmwareDiagnostics.cs

@@ -0,0 +1,67 @@
+using System;
+using System.Diagnostics.Metrics;
+
+namespace StellaOps.Concelier.Connector.Vndr.Vmware;
+
+/// <summary>
+/// VMware connector metrics (fetch, parse, map).
+/// </summary>
+public sealed class VmwareDiagnostics : IDisposable
+{
+    public const string MeterName = "StellaOps.Concelier.Connector.Vndr.Vmware";
+    private const string MeterVersion = "1.0.0";
+
+    private readonly Meter _meter;
+    private readonly Counter<long> _fetchItems;
+    private readonly Counter<long> _fetchFailures;
+    private readonly Counter<long> _fetchUnchanged;
+    private readonly Counter<long> _parseFailures;
+    private readonly Histogram<long> _mapAffectedCount;
+
+    public VmwareDiagnostics()
+    {
+        _meter = new Meter(MeterName, MeterVersion);
+        _fetchItems = _meter.CreateCounter<long>(
+            name: "vmware.fetch.items",
+            unit: "documents",
+            description: "Number of VMware advisory documents fetched.");
+        _fetchFailures = _meter.CreateCounter<long>(
+            name: "vmware.fetch.failures",
+            unit: "operations",
+            description: "Number of VMware fetch failures.");
+        _fetchUnchanged = _meter.CreateCounter<long>(
+            name: "vmware.fetch.unchanged",
+            unit: "documents",
+            description: "Number of VMware advisories skipped due to unchanged content.");
+        _parseFailures = _meter.CreateCounter<long>(
+            name: "vmware.parse.fail",
+            unit: "documents",
+            description: "Number of VMware advisory documents that failed to parse.");
+        _mapAffectedCount = _meter.CreateHistogram<long>(
+            name: "vmware.map.affected_count",
+            unit: "packages",
+            description: "Distribution of affected-package counts emitted per VMware advisory.");
+    }
+
+    public void FetchItem() => _fetchItems.Add(1);
+
+    public void FetchFailure() => _fetchFailures.Add(1);
+
+    public void FetchUnchanged() => _fetchUnchanged.Add(1);
+
+    public void ParseFailure() => _parseFailures.Add(1);
+
+    public void MapAffectedCount(int count)
+    {
+        if (count < 0)
+        {
+            return;
+        }
+
+        _mapAffectedCount.Record(count);
+    }
+
+    public Meter Meter => _meter;
+
+    public void Dispose() => _meter.Dispose();
+}