Powershell Class for Serial Communication with Network Switches

connect.ps1

$comPort = "COM5"

class SerialCommunicator
{
  hidden [int] $WaitTimeForResponse=1  # Wait Time for Response in Seconds
  hidden [int] $ComPortBaudRate=9600;
  hidden [System.IO.Ports.Parity] $ComPortParity = [System.IO.Ports.Parity]::None;
  hidden [int] $ComPortDataBits=8;
  hidden [int] $ComPortStopBits=1;

  hidden static [int] $ReadLineReadTimeout = 100

  # Public Propertys
  hidden [string]$ComPortName

  hidden [System.IO.Ports.SerialPort]$ComPort;

  SerialCommunicator([String]$ComPort)
  {
    $this.ComPortName = $ComPort;
    $this.ComPort = New-Object System.IO.Ports.SerialPort $this.ComPortName,$this.ComPortBaudRate,$this.ComPortParity,$this.ComPortDataBits,$this.ComPortStopBits;
    $this.ComPort.ReadTimeout = $this.ReadLineReadTimeout;
  }

  SendCommandAndWaitFor($Command,$RegEx)
  {
    $this.ComPort.WriteLine($Command);
    $this.WaitForLine($RegEx) | Out-Null;
  }

  [bool]WaitForLine([string]$RegEx)
  {
    Start-Sleep -Seconds 1;
    if($this.ComPort.BytesToRead)
    {
      $data = $this.ComPort.ReadExisting();
      Write-Host $data;
      if($data -match $RegEx)
      {
        return $true
      }
    }
    return $false;
  }

  [bool] OpenConnection()
  {
    $this.ComPort.Open();
    if($this.ComPort.IsOpen){
      return $true;
    }else{
      Write-Error "Error on Opening Comport" -ErrorAction Stop;
    }
    return $false;
  }

  [bool] CloseConnection()
  {
    if($this.ComPort.IsOpen)
    {
      $this.ComPort.Close();
    }
    return $true;
  }
}

$commandPrompt = "Procurve Switch 2510G-24#";

$Switch = [SerialCommunicator]::new($comPort);
$Switch.OpenConnection();

$Switch.WaitForLine("Press any key to continue")

$Switch.SendCommandAndWaitFor("$([char]13)",$commandPrompt)

$Switch.SendCommandAndWaitFor("show vlans", $commandPrompt);

$Switch.SendCommandAndWaitFor("show interfaces 1", $commandPrompt);

$Switch.CloseConnection();