[Az.EventHub] Get-AzEventHub accepts pipeline input from Get-AzEventHubNamespace. (#13732)

* Modified to accept pipeline input from Get-AzEventHubNamespace

* Successful Test Records

* Updating Help markdown files and changelog.md

* Added Static Analyser exception

* Correcting breaking change

Author: hakashya

src/EventHub/EventHub.Test/SessionRecords/Microsoft.Azure.Commands.EventHub.Test.ScenarioTests.EventHubsTests/EventHubsAuthorizationRulesCRUD.json

@@ -18,6 +18,7 @@
         - Additional information about change #1
 -->
 ## Upcoming Release
+* Added functionality to accept input from pipeline for `Get-AzEventHub` from `Get-AzEventHubNamespace`.
 
 ## Version 1.7.2
 * Fixed that `New-AzServiceBusAuthorizationRuleSASToken` returns invalid token. [#12975]

src/EventHub/EventHub.Test/SessionRecords/Microsoft.Azure.Commands.EventHub.Test.ScenarioTests.EventHubsTests/EventHubsCRUD.json

@@ -14,6 +14,8 @@
 
 using Microsoft.Azure.Commands.EventHub.Models;
 using Microsoft.Azure.Commands.ResourceManager.Common.ArgumentCompleters;
+using Microsoft.WindowsAzure.Commands.Utilities.Common;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Management.Automation;
@@ -25,34 +27,45 @@ namespace Microsoft.Azure.Commands.EventHub.Commands.EventHub
     /// <para> If EventHub name provided, a single EventHub detials will be returned</para>
     /// <para> If EventHub name not provided, list of EventHub will be returned</para>
     /// </summary>
-    [Cmdlet("Get", ResourceManager.Common.AzureRMConstants.AzureRMPrefix + "EventHub"), OutputType(typeof(PSEventHubAttributes))]
+    [Cmdlet("Get", ResourceManager.Common.AzureRMConstants.AzureRMPrefix + "EventHub", DefaultParameterSetName = EventhubPropertiesParameterSet), OutputType(typeof(PSEventHubAttributes))]
     public class GetAzureRmEventHub : AzureEventHubsCmdletBase
     {
-        [Parameter(Mandatory = true, ValueFromPipelineByPropertyName = true, Position = 0, HelpMessage = "Resource Group Name")]
+        [Parameter(Mandatory = true, Position = 0, HelpMessage = "Resource Group Name", ParameterSetName= EventhubPropertiesParameterSet)]
         [ResourceGroupCompleter]
         [ValidateNotNullOrEmpty]
          public string ResourceGroupName { get; set; }
 
-        [Parameter(Mandatory = true, ValueFromPipelineByPropertyName = true, Position = 1, HelpMessage = "Namespace Name")]
+        [Parameter(Mandatory = true, Position = 1, HelpMessage = "Namespace Name", ParameterSetName = EventhubPropertiesParameterSet)]
         [ValidateNotNullOrEmpty]
         [Alias(AliasNamespaceName)]
         public string Namespace { get; set; }
 
-        [Parameter(Mandatory = false, ValueFromPipelineByPropertyName = true, Position = 2, HelpMessage = "EventHub Name")]
+        [Parameter(Mandatory = false, Position = 2, HelpMessage = "EventHub Name", ParameterSetName = EventhubPropertiesParameterSet)]
+        [Parameter(Mandatory = false,  Position = 1, HelpMessage = "EventHub Name", ParameterSetName = NamespaceInputObjectParameterSet)]
         [Alias(AliasEventHubName)]
         public string Name { get; set; }
 
-        [Parameter(Mandatory = false, HelpMessage = "Determine the maximum number of EventHubs to return.")]
+        [Parameter(Mandatory = false, HelpMessage = "Determine the maximum number of EventHubs to return.", ParameterSetName = EventhubPropertiesParameterSet)]
         [ValidateNotNull]
         public int? MaxCount { get; set; }
 
+        [Parameter(Mandatory = true, ValueFromPipeline = true, Position = 0, HelpMessage = "Namespace object", ParameterSetName = NamespaceInputObjectParameterSet)]
+        [ValidateNotNull]
+        public PSNamespaceAttributes NamespaceObject { get; set; }
+
         /// <summary>
         /// 
         /// </summary>
         public override void ExecuteCmdlet()
         {
             try
             {
+                if (this.IsParameterBound(c => c.NamespaceObject))
+                {
+                    this.ResourceGroupName = this.NamespaceObject.ResourceGroupName;
+                    this.Namespace = this.NamespaceObject.Name;
+                }
+
                 if (!string.IsNullOrEmpty(Name))
                 {
                     // Get a EventHub

src/EventHub/EventHub/ChangeLog.md

@@ -1,4 +1,4 @@
----
+---
 external help file: Microsoft.Azure.PowerShell.Cmdlets.EventHub.dll-Help.xml
 Module Name: Az.EventHub
 online version: https://docs.microsoft.com/powershell/module/az.eventhub/get-azeventhub
@@ -12,11 +12,18 @@ Gets the details of a single Event Hub, or gets a list of Event Hubs.
 
 ## SYNTAX
 
+### EventhubPropertiesSet (Default)
 ```
 Get-AzEventHub [-ResourceGroupName] <String> [-Namespace] <String> [[-Name] <String>] [-MaxCount <Int32>]
  [-DefaultProfile <IAzureContextContainer>] [<CommonParameters>]
 ```
 
+### NamespaceInputObjectSet
+```
+Get-AzEventHub [[-Name] <String>] [-NamespaceObject] <PSNamespaceAttributes>
+ [-DefaultProfile <IAzureContextContainer>] [<CommonParameters>]
+```
+
 ## DESCRIPTION
 The Get-AzEventHub cmdlet returns either the details of an Event Hub, or a list of all Event Hubs in the current namespace.
 If the Event Hub name is provided, the details of a single Event Hub are returned.
@@ -60,7 +67,7 @@ Determine the maximum number of EventHubs to return.
 
 ```yaml
 Type: System.Nullable`1[System.Int32]
-Parameter Sets: (All)
+Parameter Sets: EventhubPropertiesSet
 Aliases:
 
 Required: False
@@ -81,7 +88,7 @@ Aliases: EventHubName
 Required: False
 Position: 2
 Default value: None
-Accept pipeline input: True (ByPropertyName)
+Accept pipeline input: False
 Accept wildcard characters: False
 ```
 
@@ -90,13 +97,28 @@ Namespace Name
 
 ```yaml
 Type: System.String
-Parameter Sets: (All)
+Parameter Sets: EventhubPropertiesSet
 Aliases: NamespaceName
 
 Required: True
 Position: 1
 Default value: None
-Accept pipeline input: True (ByPropertyName)
+Accept pipeline input: False
+Accept wildcard characters: False
+```
+
+### -NamespaceObject
+Namespace object
+
+```yaml
+Type: Microsoft.Azure.Commands.EventHub.Models.PSNamespaceAttributes
+Parameter Sets: NamespaceInputObjectSet
+Aliases:
+
+Required: True
+Position: 0
+Default value: None
+Accept pipeline input: True (ByValue)
 Accept wildcard characters: False
 ```
 
@@ -105,18 +127,18 @@ Resource Group Name
 
 ```yaml
 Type: System.String
-Parameter Sets: (All)
+Parameter Sets: EventhubPropertiesSet
 Aliases:
 
 Required: True
 Position: 0
 Default value: None
-Accept pipeline input: True (ByPropertyName)
+Accept pipeline input: False
 Accept wildcard characters: False
 ```
 
 ### CommonParameters
-This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters (http://go.microsoft.com/fwlink/?LinkID=113216).
+This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose, -WarningAction, and -WarningVariable. For more information, see [about_CommonParameters](http://go.microsoft.com/fwlink/?LinkID=113216).
 
 ## INPUTS
 

src/EventHub/EventHub/Cmdlets/EventHub/GetAzureEventHubs.cs

@@ -1,4 +1,4 @@
----
+---
 external help file: Microsoft.Azure.PowerShell.Cmdlets.EventHub.dll-Help.xml
 Module Name: Az.EventHub
 online version: https://docs.microsoft.com/powershell/module/az.eventhub/get-azeventhubnamespace
@@ -95,7 +95,7 @@ Accept wildcard characters: False
 ```
 
 ### CommonParameters
-This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters (http://go.microsoft.com/fwlink/?LinkID=113216).
+This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose, -WarningAction, and -WarningVariable. For more information, see [about_CommonParameters](http://go.microsoft.com/fwlink/?LinkID=113216).
 
 ## INPUTS
 

src/EventHub/EventHub/help/Get-AzEventHub.md

@@ -0,0 +1,2 @@
+"AssemblyFileName","ClassName","Target","Severity","ProblemId","Description","Remediation"
+"Az.EventHub","Microsoft.Azure.Commands.EventHub.Commands.EventHub.GetAzureRmEventHub","Get-AzEventHub","0","1050","The parameter set '__AllParameterSets' for cmdlet 'Get-AzEventHub' has been removed.","Add parameter set '__AllParameterSets' back to cmdlet 'Get-AzEventHub'."