Private/ValidateCimClassNameAttribute.ps1
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<#
.SYNOPSIS Class for validating cim Class type names .DESCRIPTION Long description .EXAMPLE function test-validator { [cmdletbinding()] param( [ValidateCimClass('Win32_OperatingSystem')] [ciminstance[]]$cimInstance ) $cimInstance } test-validator -ciminstance (Get-CimInstance Win32_operatingsystem -computername localhost,localhost) Use the validator in a function to verify the cim class is the correct type .EXAMPLE function test-validator { [cmdletbinding()] param( [ValidateCimClass('Win32_Bios,Win32_OperatingSystem')] [ciminstance[]]$cimInstance ) $cimInstance } test-validator -ciminstance (Get-CimInstance Win32_operatingsystem -computername localhost,localhost) Use a comma delimited list of cimclass names .NOTES The goal here is to clean up code in some of the module's functions by using this validator to confirm we aren't performing the actions on the wrong type of objects #> class ValidateCimClass : System.Management.Automation.ValidateEnumeratedArgumentsAttribute { [string]$PropertyName ValidateCimClass([string[]]$PropertyName) { $this.PropertyName = $PropertyName -split ',' } [void]ValidateElement($Element) { if ($this.PropertyName -notmatch "$($Element.CimClass.CimClassName)$") { throw ('Unexpected CIM class type: {0}' -f $Element.CimClass.CimClassName) } } } |