classes/HashtableUtility.psm1
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class HashtableUtility { ##################### # HIDDEN PROPERTIES # ##################### ##################### # PUBLIC PROPERTIES # ##################### ##################### # CONSTRUCTORS # ##################### ##################### # HIDDEN METHODS # ##################### static [pscustomobject] NewCompareResult( [object]$Key, [object]$LValue, [object]$Side, [object]$RValue ){ return New-Object -Type PSObject -Property @{ key = $Key lvalue = $LValue rvalue = $RValue side = $Side } } ##################### # PUBLIC METHODS # ##################### <# .SYNOPSIS Compare two Hashtable and returns an array of differences. .DESCRIPTION The Compare function computes differences between two Hashtables. Results are returned as an array of objects with the properties: "key" (the name of the key that caused a difference), "side" (one of "<=", "!=" or "=>"), "lvalue" an "rvalue" (resp. the left and right value associated with the key). Adapted from #https://gist.github.com/dbroeglin/c6ce3e4639979fa250cf#file-compare-hashtable-ps1 .PARAMETER left The left hand side Hashtable to compare. .PARAMETER right The right hand side Hashtable to compare. .EXAMPLE Returns a difference for ("3 <="), c (3 "!=" 4) and e ("=>" 5). [HashtableUtility]::Compare(@{ a = 1; b = 2; c = 3 },@{ b = 2; c = 4; e = 5}) .EXAMPLE Returns a difference for a ("3 <="), c (3 "!=" 4), e ("=>" 5) and g (6 "<="). $left = @{ b = 2; c = 4; e = 5; f = $Null; g = $Null } $right = @{ b = 2; c = 4; e = 5; f = $Null; g = $Null } [HashtableUtility]::Compare($left,$right) #> static [object[]] Compare( [hashtable]$Left, [hashtable]$Right ){ [Object[]]$Results = $Left.Keys | % { if ($Left.ContainsKey($_) -and !$Right.ContainsKey($_)) { [HashtableUtility]::NewCompareResult($_,$Left[$_],"<=",$Null) } else { $LValue, $RValue = $Left[$_], $Right[$_] if ($LValue -ne $RValue) { [HashtableUtility]::NewCompareResult($_,$LValue,"!=",$RValue) } } } $Results += $Right.Keys | % { if (!$Left.ContainsKey($_) -and $Right.ContainsKey($_)) { [HashtableUtility]::NewCompareResult($_,$Null,"=>",$Right[$_]) } } return $Results } static [int32] FindDepth( [hashtable]$Hashtable ){ return [HashtableUtility]::FindDepth($Hashtable,1) } static [int32] FindDepth( [hashtable]$Hashtable, [int32]$Depth ){ $deepest = $Depth foreach($kv in $Hashtable.GetEnumerator()) { if($kv.Value -is [hashtable]) { $innerDepth = [HashtableUtility]::FindDepth($kv.Value,($Depth + 1)) if ($innerDepth -gt $deepest) {$deepest = $innerDepth} } elseif ($kv.Value -is [system.array]) { $arrDepth = $Depth + 1 if ($arrDepth -gt $deepest) {$deepest = $arrDepth} foreach($item in $kv.Value) { if($item -is [hashtable]) { $innerDepth = [HashtableUtility]::FindDepth($item,($arrDepth + 1)) if ($innerDepth -gt $deepest) {$deepest = $innerDepth} } } } } return $deepest } } |