Ejemplo n.º 1
0
        /// <summary>
        /// 
        /// </summary>
        /// <param name="connection"></param>
        /// <param name="vm">The VM to export.</param>
        /// <param name="host">Used for filtering purposes. May be null.</param>
        private void Execute(IXenConnection connection, VM vm, Host host)
        {
            /*
             * These properties have not been copied over to the new save file dialog.
             *  
            dlg.AddExtension = true;
            dlg.CheckPathExists = true;
            dlg.CreatePrompt = false;
            dlg.CheckFileExists = false;
            dlg.OverwritePrompt = true;
            dlg.ValidateNames = true;*/

            string filename;
            bool verify;

            // Showing this dialog has the (undocumented) side effect of changing the working directory
            // to that of the file selected. This means a handle to the directory persists, making
            // it undeletable until the program exits, or the working dir moves on. So, save and
            // restore the working dir...
            String oldDir = "";
            try
            {
                oldDir = Directory.GetCurrentDirectory();
                while (true)
                {
                    ExportVMDialog dlg = new ExportVMDialog();
                    dlg.DefaultExt = "xva";
                    dlg.Filter = Messages.MAINWINDOW_XVA_BLURB;
                    dlg.Title = Messages.MAINWINDOW_XVA_TITLE;

                    if (dlg.ShowDialog(Parent) != DialogResult.OK)
                        return;

                    filename = dlg.FileName;
                    verify = dlg.Verify;

                    // CA-12975: Warn the user if the export operation does not have enough disk space to
                    // complete.  This is an approximation only.
                    Win32.DiskSpaceInfo diskSpaceInfo = Win32.GetDiskSpaceInfo(dlg.FileName);

                    if (diskSpaceInfo == null)
                    {
                        // Could not determine free disk space. Carry on regardless.
                        break;
                    }
                    else
                    {
                        ulong freeSpace = diskSpaceInfo.FreeBytesAvailable;
                        decimal neededSpace = vm.GetRecommendedExportSpace(Properties.Settings.Default.ShowHiddenVMs);
                        ulong spaceLeft = 100 * Util.BINARY_MEGA; // We want the user to be left with some disk space afterwards
                        if (neededSpace >= freeSpace - spaceLeft)
                        {
                            string msg = string.Format(Messages.CONFIRM_EXPORT_NOT_ENOUGH_MEMORY, Util.DiskSizeString((long)neededSpace),
                                Util.DiskSizeString((long)freeSpace), vm.Name);

                            DialogResult dr = new ThreeButtonDialog(
                                new ThreeButtonDialog.Details(SystemIcons.Warning, msg),
                                "ExportVmDialogInsufficientDiskSpace",
                                new ThreeButtonDialog.TBDButton(Messages.CONTINUE_WITH_EXPORT, DialogResult.OK),
                                new ThreeButtonDialog.TBDButton(Messages.CHOOSE_ANOTHER_DESTINATION, DialogResult.Retry),
                                ThreeButtonDialog.ButtonCancel).ShowDialog(Parent);

                            if (dr == DialogResult.Retry)
                            {
                                continue;
                            }
                            else if (dr == DialogResult.Cancel)
                            {
                                return;
                            }
                        }
                        if (diskSpaceInfo.IsFAT && neededSpace > (4 * Util.BINARY_GIGA) - 1)
                        {
                            string msg = string.Format(Messages.CONFIRM_EXPORT_FAT, Util.DiskSizeString((long)neededSpace),
                                Util.DiskSizeString(4 * Util.BINARY_GIGA), vm.Name);

                            DialogResult dr = new ThreeButtonDialog(
                                new ThreeButtonDialog.Details(SystemIcons.Warning, msg),
                                "ExportVmDialogFSLimitExceeded",
                                new ThreeButtonDialog.TBDButton(Messages.CONTINUE_WITH_EXPORT, DialogResult.OK),
                                new ThreeButtonDialog.TBDButton(Messages.CHOOSE_ANOTHER_DESTINATION, DialogResult.Retry),
                                ThreeButtonDialog.ButtonCancel).ShowDialog(Parent);
 
                            if (dr == DialogResult.Retry)
                            {
                                continue;
                            }
                            else if (dr == DialogResult.Cancel)
                            {
                                return;
                            }
                        }
                        break;
                    }
                }
            }
            finally
            {
                Directory.SetCurrentDirectory(oldDir);
            }

            new ExportVmAction(connection, host, vm, filename, verify).RunAsync();
        }