initial upload

src/Agent/Insight.Agent/Internals/Extensions.cs

@@ -0,0 +1,69 @@
+using System.Management;
+using System.Runtime.Versioning;
+
+namespace Insight.Agent
+{
+    public static class ManagmentExtensions
+    {
+        [SupportedOSPlatform("windows")]
+        public static HashSet<string> GetPropertyHashes(this ManagementBaseObject @object)
+        {
+            var properties = new HashSet<string>();
+
+            foreach (var property in @object.Properties)
+            {
+                properties.Add(property.Name);
+            }
+
+            return properties;
+        }
+
+        [SupportedOSPlatform("windows")]
+        internal static bool TryGet(this ManagementObjectSearcher searcher, out ManagementObjectCollection collection)
+        {
+            collection = searcher.Get();
+
+            try
+            {
+                _ = collection.Count;
+                return true;
+            }
+            catch (ManagementException)
+            {
+                collection.Dispose();
+                return false;
+            }
+        }
+
+        [SupportedOSPlatform("windows")]
+        internal static T? GetValue<T>(this ManagementObject @object, HashSet<string> properties, string key)
+        {
+            if (@object is null || properties is null || key is null) return default;
+            if (properties.Contains(key, StringComparer.OrdinalIgnoreCase) is false) return default;
+
+            if (@object[key] is not T obj)
+            {
+                return default;
+            }
+
+            return obj;
+        }
+
+        [SupportedOSPlatform("windows")]
+        internal static bool TryGetValue<T>(this ManagementBaseObject @object, HashSet<string> properties, string key, out T? value)
+        {
+            value = default;
+
+            if (@object is null || properties is null || key is null) return default;
+            if (properties.Contains(key, StringComparer.OrdinalIgnoreCase) is false) return false;
+
+            if (@object[key] is not T obj)
+            {
+                return false;
+            }
+
+            value = obj;
+            return true;
+        }
+    }
+}