private/New-LoggingDynamicParam.ps1
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<# .SYNOPSIS Creates the param used inside the DynamicParam{}-Block .DESCRIPTION New-LoggingDynamicParam creates (or appends) a RuntimeDefinedParameterDictionary with a parameter whos value is validated through a dynamic validate set. .PARAMETER Name displayed parameter name .PARAMETER Level Constructs the validate set out of the currently configured logging level names. .PARAMETER Target Constructs the validate set out of the currently configured logging targets. .PARAMETER DynamicParams Dictionary to be appended. (Useful for multiple dynamic params) .PARAMETER Mandatory Controls if parameter is mandatory for call. Defaults to $true .EXAMPLE DynamicParam{ New-LoggingDynamicParam -Name "Level" -Level -DefaultValue 'Verbose' } DynamicParam{ $dictionary = New-LoggingDynamicParam -Name "Level" -Level New-LoggingDynamicParam -Name "Target" -Target -DynamicParams $dictionary } #> function New-LoggingDynamicParam { [OutputType([System.Management.Automation.RuntimeDefinedParameterDictionary])] [CmdletBinding(DefaultParameterSetName = "DynamicTarget")] param( [Parameter(Mandatory = $true, ParameterSetName = "DynamicLevel")] [Parameter(Mandatory = $true, ParameterSetName = "DynamicTarget")] [String] $Name, [Parameter(Mandatory = $true, ParameterSetName = "DynamicLevel")] [switch] $Level, [Parameter(Mandatory = $true, ParameterSetName = "DynamicTarget")] [switch] $Target, [boolean] $Mandatory = $true, [System.Management.Automation.RuntimeDefinedParameterDictionary] $DynamicParams ) if (!$DynamicParams) { $DynamicParams = [System.Management.Automation.RuntimeDefinedParameterDictionary]::new() } $attributeCollection = [System.Collections.ObjectModel.Collection[System.Attribute]]::new() $attribute = [System.Management.Automation.ParameterAttribute]::new() $attribute.ParameterSetName = '__AllParameterSets' $attribute.Mandatory = $Mandatory $attribute.Position = 1 $attributeCollection.Add($attribute) [String[]] $allowedValues = @() switch ($PSCmdlet.ParameterSetName) { "DynamicTarget" { $allowedValues += $Script:Logging.Targets.Keys } "DynamicLevel" { $allowedValues += Get-LevelsName } } $validateSetAttribute = [System.Management.Automation.ValidateSetAttribute]::new($allowedValues) $attributeCollection.Add($validateSetAttribute) $dynamicParam = [System.Management.Automation.RuntimeDefinedParameter]::new($Name, [string], $attributeCollection) $DynamicParams.Add($Name, $dynamicParam) return $DynamicParams } |