Private/Get-OperationPaths.ps1
|
function Get-OperationPaths { [OutputType([Operation[][]])] param( [Parameter(Mandatory)] [SchemaNode] $Node ) $paths = [Operation[][]]::new(1) $paths[0] = [NoOp]::new() if ($Node -is [Plain]) { # https://docs.microsoft.com/en-us/powershell/scripting/learn/deep-dives/everything-about-arrays?view=powershell-7.2 Write-Output -NoEnumerate $paths } elseif ($Node -is [Variable]) { $Variable = $Node -as [Variable] foreach ($group in $Variable.GetOperations()) { $groupOps = $group.GetOperations(); $nPaths = [System.Collections.Generic.List[Operation[]]]::new() foreach ($path in $paths) { [Operation[]] $leafs = @() for ([int] $i = 0; $i -lt $groupOps.Length; $i++) { # First Failover? -> Add additional NoOp if ($i -eq 0 -and $groupOps[$i].IsFailover()) { $leafs += [NoOp]::new() } # Add operation of group as distinct leaf (they are not chained!) $leafs += $groupOps[$i] } # Setup paths from known nodes and newly found leafs foreach ($leaf in $leafs) { $nPath = [Operation[]]::new($path.Length + 1) # A) Copy nodes from known path for ([int] $i = 0; $i -lt $path.Length; $i++) { $nPath[$i] = $path[$i] } # B) Extend path $nPath[$nPath.Length - 1] = $leaf # C) Append newly constructed path to next path iteration $nPaths.Add($nPath) } } $paths = $nPaths.ToArray() } # https://docs.microsoft.com/en-us/powershell/scripting/learn/deep-dives/everything-about-arrays?view=powershell-7.2 Write-Output -NoEnumerate $paths } else { throw [System.NotImplementedException]::new() } } |