xenadmin/XenAdmin/Commands/DragDropMigrateVMCommand.cs
Konstantina Chremmou ae22560ce8 Converted all extension get properties of the API classes to methods in order to
prevent them from being serialised alongside the API properties. This will also
be useful for moving the API bindings out of XenModel.

Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
2017-09-03 03:35:30 +01:00

277 lines
12 KiB
C#

/* Copyright (c) Citrix Systems, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms,
* with or without modification, are permitted provided
* that the following conditions are met:
*
* * Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using XenAdmin.Controls;
using XenAPI;
using XenAdmin.Core;
using System.Collections.ObjectModel;
using System.Windows.Forms;
using XenAdmin.Actions;
using XenAdmin.Dialogs;
using System.Drawing;
using XenAdmin.Actions.VMActions;
namespace XenAdmin.Commands
{
internal class DragDropMigrateVMCommand : DragDropCommand
{
public DragDropMigrateVMCommand(IMainWindow mainWindow, VirtualTreeNode targetNode, IDataObject dragData)
: base(mainWindow, targetNode, dragData)
{
}
public override string StatusBarText
{
get
{
if (!CanExecute())
{
Host targetHost = GetTargetNodeAncestorAsXenObjectOrGroupingTag<Host>();
if (targetHost != null)
{
foreach (VM draggedVM in GetDraggedItemsAsXenObjects<VM>())
{
Pool draggedVMPool = Helpers.GetPool(draggedVM.Connection);
Host draggedVMHome = draggedVM.Home();
if (draggedVM == null || draggedVMPool == null ||
draggedVMHome == null ||
!draggedVM.allowed_operations.Contains(vm_operations.migrate_send))
{
if (draggedVM.power_state == vm_power_state.Running)
{
if (draggedVM.HasVGPUs())
return Messages.MIGRATION_NOT_ALLOWED_GPU;
else
return Messages.MIGRATION_NOT_ALLOWED;
}
return null;
}
if(!LiveMigrateAllowedInVersion(targetHost, draggedVM))
{
if (IsACrossPoolMigrate(targetHost, draggedVM))
{
return Messages.MIGRATION_NOT_ALLOWED_OUTSIDE_POOL;
}
if (draggedVM.GetStorageHost(true) != null)
{
// Non-agile.
return Messages.MIGRATION_NOT_ALLOWED_NO_SHARED_STORAGE;
}
}
if (targetHost != draggedVMHome && VMOperationHostCommand.VmCpuFeaturesIncompatibleWithHost(targetHost, draggedVM))
{
// target host does not offer some of the CPU features that the VM currently sees
return Messages.MIGRATION_NOT_ALLOWED_CPU_FEATURES;
}
}
}
}
return null;
}
}
private bool LiveMigrateAllowedInVersion(Host targetHost, VM draggedVM)
{
return !Helpers.FeatureForbidden(targetHost.Connection, Host.RestrictCrossPoolMigrate) &&
!Helpers.FeatureForbidden(draggedVM.Connection, Host.RestrictCrossPoolMigrate);
}
private bool IsAnIntraPoolMigrate(Host targetHost, VM draggedVM)
{
List<SR> draggedSRs = new List<SR>(draggedVM.SRs());
bool allStorageShared = draggedSRs.TrueForAll(sr => sr.shared);
return !IsACrossPoolMigrate(targetHost, draggedVM) && !allStorageShared;
}
private bool IsACrossPoolMigrate(Host targetHost, VM draggedVM )
{
Pool draggedVMPool = Helpers.GetPool(draggedVM.Connection);
Pool targetPool = targetHost == null ? null : Helpers.GetPool(targetHost.Connection);
return targetHost != null && (targetPool == null || draggedVMPool == null || targetPool.opaque_ref != draggedVMPool.opaque_ref);
}
protected override bool CanExecuteCore()
{
Host targetHost = GetTargetNodeAncestorAsXenObjectOrGroupingTag<Host>();
if (targetHost != null)
{
List<VM> draggedVMs = GetDraggedItemsAsXenObjects<VM>();
if (draggedVMs.Count > 0)
{
foreach (VM draggedVM in draggedVMs)
{
Host draggedVMHome = draggedVM.Home();
if (draggedVM.Connection == null || !draggedVM.Connection.IsConnected)
{
return false;
}
if(!LiveMigrateAllowedInVersion(targetHost, draggedVM))
{
Pool targetPool = targetHost == null ? null : Helpers.GetPool(targetHost.Connection);
if(targetPool == null)
return false;
Pool draggedVMPool = Helpers.GetPool(draggedVM.Connection);
if (draggedVMPool == null || draggedVMPool.opaque_ref != targetPool.opaque_ref)
{
// dragged VM must be in same pool as target
return false;
}
if (draggedVM.GetStorageHost(true) != null)
{
// dragged VM must be agile
return false;
}
}
else
{
if (Helpers.FeatureForbidden(draggedVM.Connection, Host.RestrictIntraPoolMigrate))
return false;
}
if (draggedVM.allowed_operations == null || !draggedVM.allowed_operations.Contains(vm_operations.pool_migrate))
{
// migrate not allowed
return false;
}
if (draggedVMHome == null || draggedVMHome == targetHost)
{
// dragged VM must currently be shown below a host
return false;
}
if (VMOperationHostCommand.VmCpuFeaturesIncompatibleWithHost(targetHost, draggedVM))
{
// target host does not offer some of the CPU features that the VM currently sees
return false;
}
}
return true;
}
}
return false;
}
protected override void ExecuteCore()
{
Host targetHost = GetTargetNodeAncestorAsXenObjectOrGroupingTag<Host>();
List<VM> draggedVMs = GetDraggedItemsAsXenObjects<VM>();
foreach (VM draggedVM in draggedVMs)
{
//Check if agile vm.
VBD cd = draggedVM.FindVMCDROM();
if (cd != null)
{
VDI vdi = cd.Connection.Resolve<VDI>(cd.VDI);
if (vdi != null)
{
SR sr = cd.Connection.Resolve<SR>(vdi.SR);
if (sr != null && !sr.shared)
{
using (var dlg = new ThreeButtonDialog(new ThreeButtonDialog.Details(SystemIcons.Exclamation,
Messages.DRAG_DROP_LOCAL_CD_LOADED,
Messages.DRAG_DROP_LOCAL_CD_LOADED_TITLE)))
{
dlg.ShowDialog(MainWindowCommandInterface.Form);
}
return;
}
}
}
}
if( draggedVMs.TrueForAll(vm => LiveMigrateAllowedInVersion(targetHost, vm)))
{
if (draggedVMs.Any(vm => IsACrossPoolMigrate(targetHost, vm)) ||
draggedVMs.Any(vm => IsAnIntraPoolMigrate(targetHost, vm)))
{
List<SelectedItem> selectedItems = new List<SelectedItem>();
draggedVMs.ForEach(vm => selectedItems.Add(new SelectedItem(vm)));
new CrossPoolMigrateCommand(MainWindowCommandInterface, selectedItems, targetHost).Execute();
return;
}
}
if (Confirm())
{
foreach (VM draggedVM in draggedVMs)
{
if (draggedVM.Connection != null && draggedVM.Connection.IsConnected)
{
new VMMigrateAction(draggedVM, targetHost).RunAsync();
}
}
}
}
private bool Confirm()
{
List<VM> draggedVMs = GetDraggedItemsAsXenObjects<VM>();
Host targetHost = GetTargetNodeAncestorAsXenObjectOrGroupingTag<Host>();
if (draggedVMs.Count == 1)
{
return Program.MainWindow.Confirm(null, Messages.MESSAGEBOX_CONFIRM, Messages.MAINWINDOW_CONFIRM_MIGRATE, draggedVMs[0].Name(), targetHost.Name());
}
return Program.MainWindow.Confirm(null, Messages.MESSAGEBOX_CONFIRM, Messages.MAINWINDOW_CONFIRM_MIGRATE_MULTIPLE, targetHost.Name());
}
public override VirtualTreeNode HighlightNode
{
get
{
return CanExecute() ? GetTargetNodeAncestor<Host>() : null;
}
}
}
}