Implement String to SsoAdmin server argument transformation attribute

Modules/VMware.vSphere.SsoAdmin/VMware.vSphere.SsoAdmin.psm1

@@ -175,16 +175,19 @@ function Disconnect-SsoAdminServer {
       ValueFromPipelineByPropertyName=$false,
       HelpMessage='SsoAdminServer object')]
    [ValidateNotNull()]
-   [VMware.vSphere.SsoAdminClient.DataTypes.SsoAdminServer]
+   [VMware.vSphere.SsoAdmin.Utils.StirngToSsoAdminServerArgumentTransformationAttribute()]
+   [VMware.vSphere.SsoAdminClient.DataTypes.SsoAdminServer[]]
    $Server)
 
    Process {
-      if ($global:DefaultSsoAdminServers.Contains($Server)) {
-         $global:DefaultSsoAdminServers.Remove($Server) | Out-Null
-      }
+      foreach ($requestedServer in $Server) {
+         if ($global:DefaultSsoAdminServers.Contains($requestedServer)) {
+            $global:DefaultSsoAdminServers.Remove($requestedServer) | Out-Null
+         }
 
-      if ($Server.IsConnected) {
-         $Server.Disconnect()
+         if ($requestedServer.IsConnected) {
+            $requestedServer.Disconnect()
+         }
       }
    }
 }

Modules/VMware.vSphere.SsoAdmin/src/VMware.vSphere.SsoAdmin.Client/VMware.vSphere.SsoAdmin.Utils/StirngToSsoAdminServerArgumentTransformationAttribute.cs

@@ -0,0 +1,54 @@
+// **************************************************************************
+//  Copyright 2020 VMware, Inc.
+// **************************************************************************
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Management.Automation;
+using System.Management.Automation.Runspaces;
+using System.Security;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using VMware.vSphere.SsoAdminClient.DataTypes;
+
+namespace VMware.vSphere.SsoAdmin.Utils
+{
+   public class StirngToSsoAdminServerArgumentTransformationAttribute : ArgumentTransformationAttribute
+   {
+      public override object Transform(EngineIntrinsics engineIntrinsics, object inputData) {
+         object result = inputData;
+
+         if (inputData is string obnValue &&
+             !string.IsNullOrEmpty(obnValue)) {
+            // Adopt PowerShell regex chars
+            var csharpObnValue = obnValue.Replace("*", ".*").Replace("?", ".?");
+            result = null;
+
+            var obnMatchingServers = new List<SsoAdminServer>();
+
+            var ssoAdminServerVariable = engineIntrinsics.SessionState.PSVariable.GetValue("DefaultSsoAdminServers");
+            
+            if (ssoAdminServerVariable is PSObject ssoAdminServersPsObj &&
+                ssoAdminServersPsObj.BaseObject is List<SsoAdminServer> connectedServers) {
+               foreach (var server in connectedServers) {
+                  if (!string.IsNullOrEmpty(Regex.Match(server.ToString(), csharpObnValue)?.Value)) {
+                     obnMatchingServers.Add(server);
+                  }                     
+              }
+            }
+
+            if (obnMatchingServers.Count > 0) {
+               result = obnMatchingServers.ToArray();
+            } else {
+               // Non-terminating error for not matching value
+               engineIntrinsics.Host.UI.WriteErrorLine($"'{obnValue}' doesn't match any objects in $global:DefaultSsoAdminServer variable");
+            }
+            
+         }
+            
+         return result;
+      }
+   }
+}

Modules/VMware.vSphere.SsoAdmin/src/VMware.vSphere.SsoAdmin.Client/VMware.vSphere.SsoAdmin.Utils/VMware.vSphere.SsoAdmin.Utils.csproj

@@ -21,5 +21,9 @@
     <PackageReference Include="Microsoft.WSMan.Runtime" Version="6.1.0" />
     <PackageReference Include="VMware.System.Private.ServiceModel" Version="4.4.4" />
   </ItemGroup>
+  
+  <ItemGroup>
+    <ProjectReference Include="..\VMware.vSphere.SsoAdminClient\VMware.vSphere.SsoAdminClient.csproj" />
+  </ItemGroup>
 
 </Project>