Improve how server OS and Platform are displayed (#2264)

* Also fixed versioning issues with how isPolybaseEnabled and isXTPSupported properties are accessed.

src/Microsoft.SqlTools.ServiceLayer/ObjectManagement/ObjectTypes/Security/NetStandardUtils.cs

@@ -111,18 +111,11 @@ namespace Microsoft.SqlTools.ServiceLayer.ObjectManagement
 
         public static bool IsXTPSupportedOnServer(SMO.Server server)
         {
-            if(server.DatabaseEngineEdition == DatabaseEngineEdition.SqlOnDemand)
+            if (server.DatabaseEngineEdition == DatabaseEngineEdition.SqlOnDemand)
             {
                 return false;
             }
-            bool isXTPSupported = false;
-
-            if (server.ConnectionContext.ExecuteScalar("SELECT SERVERPROPERTY('IsXTPSupported')") != DBNull.Value)
-            {
-                isXTPSupported = server.IsXTPSupported;
-            }
-
-            return isXTPSupported;
+            return server.IsSupportedProperty(nameof(server.IsXTPSupported)) && server.IsXTPSupported;
         }
 
         public static bool IsPolybasedInstalledOnServer(SMO.Server server)

src/Microsoft.SqlTools.ServiceLayer/ObjectManagement/ObjectTypes/Server/ServerData.cs

@@ -1199,7 +1199,6 @@ namespace Microsoft.SqlTools.ServiceLayer.ObjectManagement
             this.processors = server.Processors;
             this.isClustered = server.IsClustered;
             this.isHadrEnabled = server.IsHadrEnabled;
-            this.isPolyBaseInstalled = server.IsPolyBaseInstalled;
 
             this.product = server.Product;
             this.rootDirectory = server.RootDirectory;
@@ -1212,19 +1211,25 @@ namespace Microsoft.SqlTools.ServiceLayer.ObjectManagement
                 this.reservedStorageSizeMB = server.ReservedStorageSizeMB;
                 this.storageSpaceUsageInMB = server.UsedStorageSizeMB;
             }
+            if (server.VersionMajor < 14 || server.HostPlatform == null)
+            {
+                this.platform = server.Platform;
+                this.operatingSystem = "Microsoft Windows NT " +
+                        Convert.ToString(server.OSVersion, System.Globalization.CultureInfo.InvariantCulture);
+            }
             else
             {
-                this.isXTPSupported = server.IsXTPSupported;
-            }
-            if (server.VersionMajor >= 14)
-            {
-                this.operatingSystem = server.HostDistribution;
                 this.platform = server.HostPlatform;
+                this.operatingSystem = $"{server.HostDistribution} ({server.HostRelease})";
             }
             if (server.VersionMajor >= 13)
             {
                 this.isPolyBaseInstalled = server.IsPolyBaseInstalled;
             }
+            if (Utils.IsXTPSupportedOnServer(server))
+            {
+                this.isXTPSupported = server.IsXTPSupported;
+            }
         }
 
         private void LoadMemoryProperties()

src/Microsoft.SqlTools.ServiceLayer/ObjectManagement/ObjectTypes/Server/ServerHandler.cs

@@ -48,6 +48,8 @@ namespace Microsoft.SqlTools.ServiceLayer.ObjectManagement
                     Name = prototype.Name,
                     Language = prototype.Language,
                     MemoryInMB = prototype.MemoryInMB,
+                    OperatingSystem = prototype.OperatingSystem,
+                    Platform = prototype.Platform,
                     Processors = prototype.Processors,
                     IsClustered = prototype.IsClustered,
                     IsHadrEnabled = prototype.IsHadrEnabled,
@@ -90,11 +92,6 @@ namespace Microsoft.SqlTools.ServiceLayer.ObjectManagement
                     serverObjInfo.ReservedStorageSizeMB = sMI.ReservedStorageSizeMB;
                     serverObjInfo.StorageSpaceUsageInMB = sMI.StorageSpaceUsageInMB;
                 }
-                if (prototype is ServerPrototype140 s140)
-                {
-                    serverObjInfo.OperatingSystem = s140.OperatingSystem;
-                    serverObjInfo.Platform = s140.Platform;
-                }
                 if (prototype is ServerPrototype130 s130)
                 {
                     serverObjInfo.IsPolyBaseInstalled = s130.IsPolyBaseInstalled;
@@ -169,11 +166,7 @@ namespace Microsoft.SqlTools.ServiceLayer.ObjectManagement
             {
                 prototype = new ServerPrototypeMI(server, connection);
             }
-            else if (server.VersionMajor >= 14)
-            {
-                prototype = new ServerPrototype140(server, connection);
-            }
-            else if (server.VersionMajor == 13)
+            else if (server.VersionMajor >= 13)
             {
                 prototype = new ServerPrototype130(server, connection);
             }

src/Microsoft.SqlTools.ServiceLayer/ObjectManagement/ObjectTypes/Server/ServerPrototype.cs

@@ -53,6 +53,19 @@ namespace Microsoft.SqlTools.ServiceLayer.ObjectManagement
             }
         }
 
+
+        public string OperatingSystem
+        {
+            get
+            {
+                return this.currentState.OperatingSystem;
+            }
+            set
+            {
+                this.currentState.OperatingSystem = value;
+            }
+        }
+
         public string Version
         {
             get
@@ -77,6 +90,18 @@ namespace Microsoft.SqlTools.ServiceLayer.ObjectManagement
             }
         }
 
+        public string Platform
+        {
+            get
+            {
+                return this.currentState.Platform;
+            }
+            set
+            {
+                this.currentState.Platform = value;
+            }
+        }
+
         public int MemoryInMB
         {
             get
@@ -924,6 +949,8 @@ namespace Microsoft.SqlTools.ServiceLayer.ObjectManagement
             this.Name = serverInfo.Name ?? string.Empty;
             this.Language = serverInfo.Language;
             this.MemoryInMB = serverInfo.MemoryInMB;
+            this.OperatingSystem = serverInfo.OperatingSystem;
+            this.Platform = serverInfo.Platform;
             this.Version = serverInfo.Version;
             this.Processors = serverInfo.Processors;
             this.Version = serverInfo.Version;

src/Microsoft.SqlTools.ServiceLayer/ObjectManagement/ObjectTypes/Server/ServerPrototype140.cs

@@ -1,47 +0,0 @@
-//
-// Copyright (c) Microsoft. All rights reserved.
-// Licensed under the MIT license. See LICENSE file in the project root for full license information.
-//
-
-using Microsoft.SqlServer.Management.Common;
-using Microsoft.SqlServer.Management.Smo;
-
-namespace Microsoft.SqlTools.ServiceLayer.ObjectManagement
-{
-    internal class ServerPrototype140 : ServerPrototype130
-    {
-        public ServerPrototype140(Server server, ServerConnection connection) : base(server, connection) { }
-
-        public string OperatingSystem
-        {
-            get
-            {
-                return this.currentState.OperatingSystem;
-            }
-            set
-            {
-                this.currentState.OperatingSystem = value;
-            }
-        }
-
-        public string Platform
-        {
-            get
-            {
-                return this.currentState.Platform;
-            }
-            set
-            {
-                this.currentState.Platform = value;
-            }
-        }
-
-        public override void ApplyInfoToPrototype(ServerInfo serverInfo)
-        {
-            base.ApplyInfoToPrototype(serverInfo);
-
-            this.OperatingSystem = serverInfo.OperatingSystem;
-            this.Platform = serverInfo.Platform;
-        }
-    }
-}

src/Microsoft.SqlTools.ServiceLayer/ObjectManagement/ObjectTypes/Server/ServerPrototypeMI.cs

@@ -11,7 +11,7 @@ namespace Microsoft.SqlTools.ServiceLayer.ObjectManagement
     /// <summary>
     /// Prototype for representing a manage instance server.
     /// </summary>
-    internal class ServerPrototypeMI : ServerPrototype140
+    internal class ServerPrototypeMI : ServerPrototype130
     {
         public ServerPrototypeMI(Server server, ServerConnection connection) : base(server, connection) { }