mirror of
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246 lines
9.7 KiB
C#
246 lines
9.7 KiB
C#
/* Copyright (c) Cloud Software Group, Inc.
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*
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* Redistribution and use in source and binary forms,
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* with or without modification, are permitted provided
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* that the following conditions are met:
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*
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* * Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the
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* following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the
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* following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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using System;
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using System.Collections.Generic;
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using XenAPI;
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using XenAdmin.Network;
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using XenAdmin.Dialogs;
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using XenAdmin.Core;
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using System.Windows.Forms;
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using XenAdmin.Actions;
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using XenCenterLib;
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using System.IO;
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namespace XenAdmin.Commands
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{
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/// <summary>
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/// Shows the ExportVMDialog dialog for the selected VM.
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/// </summary>
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internal class ExportVMCommand : Command
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{
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private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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/// <summary>
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/// Initializes a new instance of this Command. The parameter-less constructor is required if
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/// this Command is to be attached to a ToolStrip menu item or button. It should not be used in any other scenario.
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/// </summary>
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public ExportVMCommand()
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{
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}
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public ExportVMCommand(IMainWindow mainWindow, IEnumerable<SelectedItem> selection)
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: base(mainWindow, selection)
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{
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}
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public ExportVMCommand(IMainWindow mainWindow, SelectedItem selection)
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: base(mainWindow, selection)
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{
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}
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public ExportVMCommand(IMainWindow mainWindow, VM vm)
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: base(mainWindow, vm)
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{
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="connection"></param>
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/// <param name="vm">The VM to export.</param>
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/// <param name="host">Used for filtering purposes. May be null.</param>
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private void Run(IXenConnection connection, VM vm, Host host)
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{
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/*
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* These properties have not been copied over to the new save file dialog.
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*
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dlg.AddExtension = true;
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dlg.CheckPathExists = true;
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dlg.CreatePrompt = false;
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dlg.CheckFileExists = false;
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dlg.OverwritePrompt = true;
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dlg.ValidateNames = true;*/
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string filename;
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bool verify;
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// Showing this dialog has the (undocumented) side effect of changing the working directory
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// to that of the file selected. This means a handle to the directory persists, making
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// it undeletable until the program exits, or the working dir moves on. So, save and
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// restore the working dir...
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String oldDir = "";
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try
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{
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oldDir = Directory.GetCurrentDirectory();
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while (true)
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{
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ExportVMDialog dlg = new ExportVMDialog();
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dlg.DefaultExt = "xva";
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dlg.Filter = Messages.MAINWINDOW_XVA_BLURB;
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dlg.Title = Messages.MAINWINDOW_XVA_TITLE;
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if (dlg.ShowDialog(Parent) != DialogResult.OK)
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return;
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filename = dlg.FileName;
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verify = dlg.Verify;
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// CA-12975: Warn the user if the export operation does not have enough disk space to
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// complete. This is an approximation only.
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Win32.DiskSpaceInfo diskSpaceInfo = null;
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try
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{
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diskSpaceInfo = Win32.GetDiskSpaceInfo(dlg.FileName);
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}
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catch (Exception exn)
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{
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log.Warn(exn, exn);
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}
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if (diskSpaceInfo == null)
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{
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// Could not determine free disk space. Carry on regardless.
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break;
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}
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else
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{
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ulong freeSpace = diskSpaceInfo.FreeBytesAvailable;
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decimal neededSpace = vm.GetRecommendedExportSpace(Properties.Settings.Default.ShowHiddenVMs);
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ulong spaceLeft = 100 * Util.BINARY_MEGA; // We want the user to be left with some disk space afterwards
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if (neededSpace >= freeSpace - spaceLeft)
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{
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string msg = string.Format(Messages.CONFIRM_EXPORT_NOT_ENOUGH_MEMORY, Util.DiskSizeString((long)neededSpace),
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Util.DiskSizeString((long)freeSpace), vm.Name());
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DialogResult dr;
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using (var d = new WarningDialog(msg,
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new ThreeButtonDialog.TBDButton(Messages.CONTINUE_WITH_EXPORT, DialogResult.OK),
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new ThreeButtonDialog.TBDButton(Messages.CHOOSE_ANOTHER_DESTINATION, DialogResult.Retry),
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ThreeButtonDialog.ButtonCancel){HelpNameSetter = "ExportVmDialogInsufficientDiskSpace"})
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{
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dr = d.ShowDialog(Parent);
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}
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if (dr == DialogResult.Retry)
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{
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continue;
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}
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else if (dr == DialogResult.Cancel)
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{
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return;
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}
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}
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if (diskSpaceInfo.IsFAT && neededSpace > (4 * Util.BINARY_GIGA) - 1)
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{
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string msg = string.Format(Messages.CONFIRM_EXPORT_FAT, Util.DiskSizeString((long)neededSpace),
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Util.DiskSizeString(4 * Util.BINARY_GIGA), vm.Name());
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DialogResult dr;
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using (var d = new WarningDialog(msg,
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new ThreeButtonDialog.TBDButton(Messages.CONTINUE_WITH_EXPORT, DialogResult.OK),
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new ThreeButtonDialog.TBDButton(Messages.CHOOSE_ANOTHER_DESTINATION, DialogResult.Retry),
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ThreeButtonDialog.ButtonCancel){HelpNameSetter = "ExportVmDialogFSLimitExceeded"})
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{
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dr = d.ShowDialog(Parent);
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}
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if (dr == DialogResult.Retry)
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{
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continue;
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}
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else if (dr == DialogResult.Cancel)
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{
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return;
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}
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}
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break;
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}
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}
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}
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finally
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{
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Directory.SetCurrentDirectory(oldDir);
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}
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new ExportVmAction(connection, host, vm, filename, verify).RunAsync();
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}
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protected override void RunCore(SelectedItemCollection selection)
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{
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VM vm = (VM)selection[0].XenObject;
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Host host = vm.Home();
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Pool pool = Helpers.GetPool(vm.Connection);
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if (host == null && pool != null)
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{
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host = pool.Connection.Resolve(pool.master);
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}
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Run(selection[0].Connection, vm, host);
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}
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protected override bool CanRunCore(SelectedItemCollection selection)
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{
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if (selection.Count == 1)
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{
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VM vm = selection[0].XenObject as VM;
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if (vm != null && !vm.is_a_template && !vm.Locked && vm.allowed_operations != null && vm.allowed_operations.Contains(vm_operations.export))
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{
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return true;
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}
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}
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return false;
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}
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public override string MenuText
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{
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get
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{
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return Messages.MAINWINDOW_EXPORT_VM_AS_BACKUP;
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}
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}
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protected override string GetCantRunReasonCore(IXenObject item)
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{
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VM vm = item as VM;
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if (vm == null)
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return base.GetCantRunReasonCore(item);
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if (vm.power_state == vm_power_state.Running)
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return Messages.MAINWINDOW_EXPORT_VM_AS_BACKUP_TOOLTIP;
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return null;
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}
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}
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}
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