// Helper function to launch an executable file.
// Returns true if the executable is launched successfully.
private static bool LaunchExe(string ExeName, string Params, string StartDirectory, bool WaitForExit = true, bool HideWindow = true)
{
bool ret = true;
ProcessStartInfo si = new ProcessStartInfo(ExeName, Params);
si.WorkingDirectory = StartDirectory;
si.WindowStyle = (HideWindow) ? ProcessWindowStyle.Hidden : ProcessWindowStyle.Normal;
try
{
Process p = Process.Start(si);
if (WaitForExit)
{
p.WaitForExit();
}
}
catch (Exception ex)
{
OutputText.AppendText(OutputText.OutputStream.Both,
String.Format("\r\nError!!! An exception occurred when launching '{0}'. The exception message was '{1}'.\r\n", ExeName,
ex.Message));
ret = false;
}
return(ret);
}
/// <summary>
/// Starts the server and stores the ProcessID of the command window that hosts it
/// </summary>
/// <param name="BranchLocation">The path to the openPetra branch for which the server is to be started</param>
/// <param name="StartMinimized">Set to True if the server window is to be minimized at startup</param>
/// <returns>True if nant.bat was launched successfully. Check the log file to see if the command actually succeeded.</returns>
public static bool StartServer(string BranchLocation, bool StartMinimized)
{
_serverProcessID = 0;
bool bRet = LaunchExe("nant.bat", "startPetraServer -logfile:opda.txt", BranchLocation);
if (bRet)
{
// Just wait for things to settle
System.Threading.Thread.Sleep(2000);
// Call IsServerRunning - this will work out the value for _serverProcessID
IsServerRunning();
if (_serverProcessID == 0)
{
OutputText.AppendText(OutputText.OutputStream.Both,
"\r\nThe startServer task was executed but the Assistant failed to figure out the cmd window ID\r\n");
}
else if (StartMinimized)
{
PostMessage(new HandleRef(null, Process.GetProcessById(_serverProcessID).MainWindowHandle), WM_SYSCOMMAND, new IntPtr(
SC_MINIMIZE), new IntPtr(0));
}
}
return(bRet);
}
/// <summary>
/// Stops the server process and closes the command window that hosted it. (In exceptional circumstances it may not be possible to close the DOS window)
/// </summary>
/// <param name="BranchLocation">The path to the openPetra branch for which the server is to be stopped</param>
/// <returns>True if nant.bat was launched successfully. Check the log file to see if the command actually succeeded.</returns>
public static bool StopServer(string BranchLocation)
{
// Launch the stop task
bool bRet = LaunchExe("nant.bat", "stopPetraServer -logfile:opda.txt", BranchLocation);
if (bRet && _serverProcessIdIsCmdWindow)
{
// That command window will have closed but we will be left with the cmd window that hosted the server
// We find all cmd windows that are running: if we know the ProcessID that we started we can just kill that one
// Otherwise, if there is only one running now we can close it
// Failing that we do not know which command window to close, so we have to leave it
Process[] curProcesses = Process.GetProcessesByName("cmd");
bool bFound = false;
if (_serverProcessID > 0)
{
foreach (Process p in curProcesses)
{
if (p.Id == _serverProcessID)
{
p.Kill();
bFound = true;
}
}
}
else if (curProcesses.Length == 1)
{
// There is only one cmd window, so we can close it anyway
curProcesses[0].Kill();
bFound = true;
}
if (!bFound)
{
OutputText.AppendText(OutputText.OutputStream.Both,
String.Format("\r\nFailed to find ProcessID {0} so cmd window was not closed\r\n", _serverProcessID));
}
}
_serverProcessID = 0;
return(bRet);
}
