mirror of
https://github.com/xcp-ng/xenadmin.git
synced 2024-11-25 06:16:37 +01:00
bf088cb944
* Remove restriction on creating >2TB disk * Changed restrictions for resizing VDI * Removed old method and replaced it with direct calls to new method Signed-off-by: serenc <seren.corbett@citrix.com>
407 lines
14 KiB
C#
407 lines
14 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
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Linq;
|
|
using XenAdmin.Core;
|
|
using XenAPI;
|
|
|
|
namespace XenAdmin.Controls
|
|
{
|
|
/// <summary>
|
|
/// Decide which of the SRPickerItem to choose - depending on the usage required
|
|
/// </summary>
|
|
public class SrPickerItemFactory
|
|
{
|
|
public SrPickerItem PickerItem(SR sr, SrPicker.SRPickerType usage, Host aff, long diskSize, VDI[] vdis)
|
|
{
|
|
if (SrPicker.SRPickerType.Migrate == usage)
|
|
return new SrPickerMigrateItem(sr, aff, diskSize, vdis);
|
|
if (SrPicker.SRPickerType.MoveOrCopy == usage)
|
|
return new SrPickerMoveCopyItem(sr, aff, diskSize, vdis);
|
|
if (SrPicker.SRPickerType.InstallFromTemplate == usage)
|
|
return new SrPickerInstallFromTemplateItem(sr, aff, diskSize, vdis);
|
|
if (SrPicker.SRPickerType.VM == usage)
|
|
return new SrPickerVmItem(sr, aff, diskSize, vdis);
|
|
if (SrPicker.SRPickerType.LunPerVDI == usage)
|
|
return new SrPickerLunPerVDIItem(sr, aff, diskSize, vdis);
|
|
|
|
throw new ArgumentException("There is no SRPickerItem for the type: " + usage);
|
|
}
|
|
}
|
|
|
|
public class SrPickerLunPerVDIItem : SrPickerVmItem
|
|
{
|
|
public SrPickerLunPerVDIItem(SR sr, Host aff, long diskSize, VDI[] vdis)
|
|
: base(sr, aff, diskSize, vdis)
|
|
{
|
|
}
|
|
|
|
protected override bool CanBeEnabled
|
|
{
|
|
get
|
|
{
|
|
if(TheSR.HBALunPerVDI())
|
|
return !TheSR.IsBroken(false) && TheSR.CanBeSeenFrom(Affinity);
|
|
return base.CanBeEnabled;
|
|
}
|
|
}
|
|
|
|
protected override bool UnsupportedSR
|
|
{
|
|
get { return false; }
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Stategy pattern for the SRPickerItem for migrate scenarios
|
|
/// </summary>
|
|
public class SrPickerMigrateItem : SrPickerItem
|
|
{
|
|
public SrPickerMigrateItem(SR sr, Host aff, long diskSize, VDI[] vdis) : base(sr, aff, diskSize, vdis)
|
|
{
|
|
}
|
|
|
|
private bool CanMigrate(VDI vdi)
|
|
{
|
|
if (TheSR == null || vdi == null)
|
|
return false;
|
|
|
|
bool toLocal = TheSR.IsLocalSR();
|
|
if (toLocal && !HomeHostCanSeeTargetSr(vdi))
|
|
return false;
|
|
|
|
bool fromLocal = vdi.Connection.Resolve(vdi.SR).IsLocalSR();
|
|
if (fromLocal && toLocal)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
/// <summary>
|
|
/// If the VM has a home host, we can move VDIs to a local SR only
|
|
/// if the latter belongs to the VM's home host
|
|
/// </summary>
|
|
private bool HomeHostCanSeeTargetSr(VDI vdi)
|
|
{
|
|
var vms = vdi.GetVMs();
|
|
var homeHosts = (from VM vm in vms
|
|
let host = vm.Home()
|
|
where host != null
|
|
select host).ToList();
|
|
|
|
return homeHosts.Count == 0 || homeHosts.Any(TheSR.CanBeSeenFrom);
|
|
}
|
|
|
|
protected override string CannotBeShownReason
|
|
{
|
|
get
|
|
{
|
|
if (ExistingVDILocation())
|
|
return Messages.CURRENT_LOCATION;
|
|
if (LocalToLocalMove())
|
|
return Messages.LOCAL_TO_LOCAL_MOVE;
|
|
if (TheSR.IsLocalSR() && existingVDIs != null && existingVDIs.Any(v => !HomeHostCanSeeTargetSr(v)))
|
|
return Messages.SRPICKER_ERROR_LOCAL_SR_MUST_BE_RESIDENT_HOSTS;
|
|
if (!TheSR.CanBeSeenFrom(Affinity))
|
|
return TheSR.Connection != null
|
|
? string.Format(Messages.SR_CANNOT_BE_SEEN, Affinity == null ? Helpers.GetName(TheSR.Connection) : Helpers.GetName(Affinity))
|
|
: Messages.SR_DETACHED;
|
|
return base.CannotBeShownReason;
|
|
}
|
|
}
|
|
|
|
private bool LocalToLocalMove()
|
|
{
|
|
return TheSR.IsLocalSR() && existingVDIs != null && existingVDIs.Length > 0 && existingVDIs.All(vdi => vdi.Connection.Resolve(vdi.SR).IsLocalSR());
|
|
}
|
|
|
|
protected override bool CanBeEnabled
|
|
{
|
|
get
|
|
{
|
|
return existingVDIs != null && existingVDIs.Length > 0 && existingVDIs.All(CanMigrate)
|
|
&& TheSR.SupportsVdiCreate() && !ExistingVDILocation() && !TheSR.IsDetached() && TheSR.VdiCreationCanProceed(DiskSize);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Stategy pattern for the SRPickerItem for copy and move scenarios
|
|
/// </summary>
|
|
public class SrPickerMoveCopyItem : SrPickerItem
|
|
{
|
|
public SrPickerMoveCopyItem(SR sr, Host aff, long diskSize, VDI[] vdis) : base(sr, aff, diskSize, vdis)
|
|
{
|
|
}
|
|
|
|
protected override bool CanBeEnabled
|
|
{
|
|
get
|
|
{
|
|
return !TheSR.IsDetached() && TheSR.SupportsVdiCreate() && !ExistingVDILocation() &&
|
|
TheSR.VdiCreationCanProceed(DiskSize);
|
|
}
|
|
}
|
|
|
|
protected override string CannotBeShownReason
|
|
{
|
|
get
|
|
{
|
|
if (TheSR.IsDetached())
|
|
return Messages.SR_DETACHED;
|
|
if (ExistingVDILocation())
|
|
return Messages.CURRENT_LOCATION;
|
|
return base.CannotBeShownReason;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
/// <summary>
|
|
/// Stategy pattern for the SRPickerItem for installing from a template scenarios
|
|
/// </summary>
|
|
public class SrPickerInstallFromTemplateItem : SrPickerItem
|
|
{
|
|
public SrPickerInstallFromTemplateItem(SR sr, Host aff, long diskSize, VDI[] vdis) : base(sr, aff, diskSize, vdis)
|
|
{
|
|
}
|
|
|
|
protected override bool CanBeEnabled
|
|
{
|
|
get { return TheSR.SupportsVdiCreate() && !TheSR.IsDetached() && TheSR.VdiCreationCanProceed(DiskSize); }
|
|
}
|
|
|
|
protected override string CannotBeShownReason
|
|
{
|
|
get
|
|
{
|
|
if (TheSR.IsDetached())
|
|
return Messages.SR_DETACHED;
|
|
return base.CannotBeShownReason;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/// <summary>
|
|
/// Stategy pattern for the SRPickerItem for VM scenarios
|
|
/// </summary>
|
|
public class SrPickerVmItem : SrPickerItem
|
|
{
|
|
public SrPickerVmItem(SR sr, Host aff, long diskSize, VDI[] vdis) : base(sr, aff, diskSize, vdis)
|
|
{
|
|
}
|
|
|
|
protected override bool CanBeEnabled
|
|
{
|
|
get { return TheSR.CanBeSeenFrom(Affinity) && TheSR.CanCreateVmOn() && TheSR.VdiCreationCanProceed(DiskSize); }
|
|
}
|
|
|
|
protected override string CannotBeShownReason
|
|
{
|
|
get
|
|
{
|
|
if (Affinity == null && !TheSR.shared)
|
|
return Messages.SR_IS_LOCAL;
|
|
if (!TheSR.CanBeSeenFrom(Affinity))
|
|
return TheSR.Connection != null
|
|
? string.Format(Messages.SR_CANNOT_BE_SEEN, Affinity == null ? Helpers.GetName(TheSR.Connection) : Helpers.GetName(Affinity))
|
|
: Messages.SR_DETACHED;
|
|
return base.CannotBeShownReason;
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Base class for the SRPickerItem stategies
|
|
/// </summary>
|
|
public abstract class SrPickerItem : CustomTreeNode, IComparable<SrPickerItem>
|
|
{
|
|
|
|
public SR TheSR { get; private set; }
|
|
public bool Show { get; private set; }
|
|
protected Host Affinity { get; private set; }
|
|
protected long DiskSize { get; private set; }
|
|
protected VDI[] existingVDIs { get; private set; }
|
|
|
|
private SrPickerItem()
|
|
{
|
|
Show = true;
|
|
}
|
|
|
|
protected SrPickerItem(SR sr, Host aff, long diskSize, VDI[] vdis) : this()
|
|
{
|
|
existingVDIs = vdis;
|
|
TheSR = sr;
|
|
Affinity = aff;
|
|
DiskSize = diskSize;
|
|
Update();
|
|
}
|
|
|
|
private bool ShowHiddenVDIs
|
|
{
|
|
get
|
|
{
|
|
return TheSR.ShowInVDISRList(Properties.Settings.Default.ShowHiddenVMs);
|
|
}
|
|
}
|
|
|
|
protected virtual bool UnsupportedSR
|
|
{
|
|
get { return TheSR.HBALunPerVDI(); }
|
|
}
|
|
|
|
protected abstract bool CanBeEnabled { get; }
|
|
|
|
protected virtual void SetImage()
|
|
{
|
|
Image = Images.GetImage16For(TheSR);
|
|
}
|
|
|
|
public void UpdateDiskSize(long diskSize)
|
|
{
|
|
DiskSize = diskSize;
|
|
Update();
|
|
}
|
|
|
|
public void Update()
|
|
{
|
|
Text = TheSR.Name();
|
|
SetImage();
|
|
|
|
if(UnsupportedSR)
|
|
{
|
|
DoNotShowSR();
|
|
}
|
|
else if (ShowHiddenVDIs && CanBeEnabled && !ExistingVDILocation())
|
|
{
|
|
ShowSREnabled();
|
|
}
|
|
else if (TheSR.PBDs.Count > 0 && TheSR.SupportsVdiCreate())
|
|
{
|
|
ShowSRDisabled();
|
|
}
|
|
else
|
|
{
|
|
DoNotShowSR();
|
|
}
|
|
}
|
|
|
|
private void DoNotShowSR()
|
|
{
|
|
Show = false;
|
|
}
|
|
|
|
private void ShowSRDisabled()
|
|
{
|
|
Description = CannotBeShownReason;
|
|
CalculateDisabledSortReason();
|
|
Enabled = false;
|
|
Show = true;
|
|
}
|
|
|
|
private void ShowSREnabled()
|
|
{
|
|
Enabled = true;
|
|
Description = string.Format(Messages.SRPICKER_DISK_FREE, Util.DiskSizeString(TheSR.FreeSpace(), 2),
|
|
Util.DiskSizeString(TheSR.physical_size, 2));
|
|
CalculateEnabledSortReason();
|
|
Show = true;
|
|
}
|
|
|
|
protected bool ExistingVDILocation()
|
|
{
|
|
return existingVDIs != null && existingVDIs.Length > 0 && existingVDIs.All(vdi => vdi.SR.opaque_ref == TheSR.opaque_ref);
|
|
}
|
|
|
|
protected virtual string CannotBeShownReason
|
|
{
|
|
get
|
|
{
|
|
if (TheSR.IsBroken(false))
|
|
return Messages.SR_IS_BROKEN;
|
|
if (TheSR.IsFull())
|
|
return Messages.SRPICKER_SR_FULL;
|
|
if (DiskSize > TheSR.physical_size)
|
|
return string.Format(Messages.SR_PICKER_DISK_TOO_BIG, Util.DiskSizeString(DiskSize, 2),
|
|
Util.DiskSizeString(TheSR.physical_size, 2));
|
|
if (DiskSize > (TheSR.FreeSpace()))
|
|
return string.Format(Messages.SR_PICKER_INSUFFICIENT_SPACE, Util.DiskSizeString(DiskSize, 2),
|
|
Util.DiskSizeString(TheSR.FreeSpace(), 2));
|
|
return "";
|
|
}
|
|
|
|
}
|
|
|
|
public int CompareTo(SrPickerItem other)
|
|
{
|
|
return base.CompareTo(other);
|
|
}
|
|
|
|
#region Sorting Details
|
|
private enum SrNotEnabledReason { None, Broken, Full, NotSeen };
|
|
private SrNotEnabledReason sortingReason;
|
|
|
|
private void CalculateDisabledSortReason()
|
|
{
|
|
if (!TheSR.CanBeSeenFrom(Affinity))
|
|
sortingReason = SrNotEnabledReason.NotSeen;
|
|
else if (TheSR.IsFull() || TheSR.FreeSpace() < DiskSize)
|
|
sortingReason = SrNotEnabledReason.Full;
|
|
else
|
|
sortingReason = SrNotEnabledReason.Broken;
|
|
}
|
|
|
|
private void CalculateEnabledSortReason()
|
|
{
|
|
sortingReason = SrNotEnabledReason.None;
|
|
}
|
|
|
|
protected override int SameLevelSortOrder(CustomTreeNode other)
|
|
{
|
|
SrPickerItem otherItem = other as SrPickerItem;
|
|
if (otherItem == null) //shouldnt ever happen!!!
|
|
return -1;
|
|
|
|
if (!otherItem.Enabled && Enabled)
|
|
return -1;
|
|
if (otherItem.Enabled && !Enabled)
|
|
return 1;
|
|
if (otherItem.Enabled && Enabled)
|
|
return base.SameLevelSortOrder(otherItem);
|
|
return (int)sortingReason - (int)otherItem.sortingReason;
|
|
}
|
|
#endregion
|
|
}
|
|
}
|