Get-PropertyType.ps1
|
function Get-PropertyType { <# .SYNOPSIS Extract unique .NET types for properties of one or more objects .PARAMETER InputObject Get properties and their types for each of these .PARAMETER Property If specified, only return unique types for these properties .EXAMPLE #Define an array of objects $array = [pscustomobject]@{ prop1 = "har" prop2 = $(get-date) }, [pscustomobject]@{ prop1 = "bar" prop2 = 2 } #Extract the property types from this array. In this example, Prop1 is always a System.String, Prop2 is a System.DateTime and System.Int32 $array | Get-PropertyType # Name Value # ---- ----- # prop1 {System.String} # prop2 {System.DateTime, System.Int32} #Pretend prop2 should always be a DateTime. Extract all objects from $array where this is not the case $array | ?{$_.prop2 -isnot [System.DateTime]} # prop1 prop2 # ----- ----- # bar 2 .FUNCTIONALITY General Command #> param ( [Parameter( Mandatory=$true, ValueFromPipeline=$true)] [psobject]$InputObject, [string[]]$property = $null ) Begin { #function to extract properties Function Get-PropertyOrder { <# .SYNOPSIS Gets property order for specified object .DESCRIPTION Gets property order for specified object .PARAMETER InputObject A single object to convert to an array of property value pairs. .PARAMETER Membertype Membertypes to include .PARAMETER ExcludeProperty Specific properties to exclude .FUNCTIONALITY PowerShell Language #> [cmdletbinding()] param( [Parameter(Mandatory=$true,ValueFromPipeline=$true,ValueFromRemainingArguments=$false)] [PSObject]$InputObject, [validateset("AliasProperty", "CodeProperty", "Property", "NoteProperty", "ScriptProperty", "Properties", "PropertySet", "Method", "CodeMethod", "ScriptMethod", "Methods", "ParameterizedProperty", "MemberSet", "Event", "Dynamic", "All")] [string[]]$MemberType = @( "NoteProperty", "Property", "ScriptProperty" ), [string[]]$ExcludeProperty = $null ) begin { if($PSBoundParameters.ContainsKey('inputObject')) { $firstObject = $InputObject[0] } } process{ #we only care about one object... $firstObject = $InputObject } end{ #Get properties that meet specified parameters $firstObject.psobject.properties | Where-Object { $memberType -contains $_.memberType } | Select -ExpandProperty Name | Where-Object{ -not $excludeProperty -or $excludeProperty -notcontains $_ } } } #Get-PropertyOrder $Output = @{} } Process { #loop through every object foreach($obj in $InputObject){ #extract the properties in this object $props = @( Get-PropertyOrder -InputObject $obj | Where { -not $Property -or $property -contains $_ } ) #loop through every property in this one object foreach($prop in $props){ #try to get the property type. If it's null, say so Try{ $type = $obj.$prop.gettype().FullName } Catch { $type = $null } #check to see if we already have types for this prop if(-not $Output.ContainsKey($prop)){ #we don't have an array yet. Start one, put the type in it $List = New-Object System.Collections.ArrayList [void]$List.Add($type) $Output.Add($prop, $List) } else{ if($Output[$prop] -notcontains $type){ #type isn't in the array yet, add it [void]$output[$prop].Add($type) } } } } } End { $Output } } |