mirror of
https://github.com/xcp-ng/xenadmin.git
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355 lines
12 KiB
C#
355 lines
12 KiB
C#
/* Copyright (c) Citrix Systems, Inc.
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* All rights reserved.
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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 System.Linq;
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using XenAdmin.Core;
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using XenAPI;
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namespace XenAdmin.Controls
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{
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public class SrPickerLunPerVDIItem : SrPickerVmItem
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{
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public SrPickerLunPerVDIItem(SR sr, Host aff, long diskSize, VDI[] vdis)
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: base(sr, aff, diskSize, vdis)
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{
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}
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protected override bool CanBeEnabled
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{
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get
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{
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if(TheSR.HBALunPerVDI())
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return !TheSR.IsBroken(false) && TheSR.CanBeSeenFrom(Affinity);
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return base.CanBeEnabled;
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}
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}
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protected override bool UnsupportedSR => false;
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}
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public class SrPickerMigrateItem : SrPickerItem
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{
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public SrPickerMigrateItem(SR sr, Host aff, long diskSize, VDI[] vdis)
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: base(sr, aff, diskSize, vdis)
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{
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}
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/// <summary>
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/// We can move VDIs to a local SR only if the VDI is attached to VMs
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/// that have a home server that can see the SR
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/// </summary>
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private static bool HomeHostCanSeeTargetSr(VDI vdi, SR targetSr)
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{
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var vms = vdi.GetVMs();
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var homeHosts = (from VM vm in vms
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let host = vm.Home()
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where host != null
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select host).ToList();
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return homeHosts.Count > 0 && homeHosts.All(targetSr.CanBeSeenFrom);
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}
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protected override string DisabledReason
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{
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get
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{
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if (ExistingVDILocation())
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return Messages.CURRENT_LOCATION;
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if (TheSR.IsLocalSR())
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{
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foreach (var vdi in existingVDIs)
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{
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var homeHosts = new List<Host>();
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var vms = vdi.GetVMs();
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foreach (var vm in vms)
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{
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var homeHost = vm.Home();
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if (homeHost != null)
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{
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homeHosts.Add(homeHost);
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if (!TheSR.CanBeSeenFrom(homeHost))
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return vm.power_state == vm_power_state.Running
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? Messages.SRPICKER_ERROR_LOCAL_SR_MUST_BE_RESIDENT_HOSTS
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: string.Format(Messages.SR_CANNOT_BE_SEEN, Helpers.GetName(homeHost));
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}
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}
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if (homeHosts.Count == 0)
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return Messages.SR_IS_LOCAL;
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}
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}
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if (!TheSR.CanBeSeenFrom(Affinity))
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return TheSR.Connection != null
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? string.Format(Messages.SR_CANNOT_BE_SEEN, Affinity == null ? Helpers.GetName(TheSR.Connection) : Helpers.GetName(Affinity))
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: Messages.SR_DETACHED;
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if (!TheSR.SupportsStorageMigration())
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return Messages.UNSUPPORTED_SR_TYPE;
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return base.DisabledReason;
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}
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}
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protected override bool CanBeEnabled
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{
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get
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{
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return existingVDIs.Length > 0 &&
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!ExistingVDILocation() &&
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(!TheSR.IsLocalSR() || existingVDIs.All(v => HomeHostCanSeeTargetSr(v, TheSR))) &&
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TheSR.SupportsVdiCreate() &&
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!TheSR.IsDetached() && TheSR.VdiCreationCanProceed(DiskSize) &&
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TheSR.SupportsStorageMigration();
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}
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}
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}
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public class SrPickerMoveCopyItem : SrPickerItem
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{
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public SrPickerMoveCopyItem(SR sr, Host aff, long diskSize, VDI[] vdis)
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: base(sr, aff, diskSize, vdis)
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{
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}
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protected override bool CanBeEnabled
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{
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get
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{
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return !TheSR.IsDetached() && TheSR.SupportsVdiCreate() && !ExistingVDILocation() &&
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TheSR.VdiCreationCanProceed(DiskSize);
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}
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}
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protected override string DisabledReason
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{
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get
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{
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if (TheSR.IsDetached())
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return Messages.SR_DETACHED;
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if (ExistingVDILocation())
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return Messages.CURRENT_LOCATION;
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return base.DisabledReason;
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}
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}
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}
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public class SrPickerInstallFromTemplateItem : SrPickerItem
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{
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public SrPickerInstallFromTemplateItem(SR sr, Host aff, long diskSize, VDI[] vdis)
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: base(sr, aff, diskSize, vdis)
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{
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}
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protected override bool CanBeEnabled
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{
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get { return TheSR.SupportsVdiCreate() && !TheSR.IsDetached() && TheSR.VdiCreationCanProceed(DiskSize); }
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}
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protected override string DisabledReason
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{
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get
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{
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if (TheSR.IsDetached())
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return Messages.SR_DETACHED;
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return base.DisabledReason;
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}
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}
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}
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public class SrPickerVmItem : SrPickerItem
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{
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public SrPickerVmItem(SR sr, Host aff, long diskSize, VDI[] vdis)
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: base(sr, aff, diskSize, vdis)
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{
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}
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protected override bool CanBeEnabled
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{
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get { return TheSR.CanBeSeenFrom(Affinity) && TheSR.CanCreateVmOn() && TheSR.VdiCreationCanProceed(DiskSize); }
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}
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protected override string DisabledReason
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{
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get
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{
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if (Affinity == null && !TheSR.shared)
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return Messages.SR_IS_LOCAL;
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if (!TheSR.CanBeSeenFrom(Affinity))
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return TheSR.Connection != null
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? string.Format(Messages.SR_CANNOT_BE_SEEN, Affinity == null ? Helpers.GetName(TheSR.Connection) : Helpers.GetName(Affinity))
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: Messages.SR_DETACHED;
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return base.DisabledReason;
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}
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}
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}
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public abstract class SrPickerItem : CustomTreeNode, IComparable<SrPickerItem>
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{
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public SR TheSR { get; }
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public bool Show { get; private set; }
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protected readonly Host Affinity;
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protected long DiskSize { get; private set; }
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protected readonly VDI[] existingVDIs;
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protected SrPickerItem(SR sr, Host aff, long diskSize, VDI[] vdis)
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{
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existingVDIs = vdis ?? new VDI[0];
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TheSR = sr;
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Affinity = aff;
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DiskSize = diskSize;
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Update();
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}
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private bool ShowHiddenVDIs
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{
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get
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{
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return TheSR.ShowInVDISRList(Properties.Settings.Default.ShowHiddenVMs);
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}
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}
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protected virtual bool UnsupportedSR => TheSR.HBALunPerVDI();
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protected abstract bool CanBeEnabled { get; }
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protected virtual void SetImage()
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{
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Image = Images.GetImage16For(TheSR);
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}
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public void UpdateDiskSize(long diskSize)
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{
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DiskSize = diskSize;
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Update();
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}
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private void Update()
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{
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Text = TheSR.Name();
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SetImage();
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if (UnsupportedSR)
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return;
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if (ShowHiddenVDIs && !ExistingVDILocation() && CanBeEnabled)
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{
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Description = string.Format(Messages.SRPICKER_DISK_FREE, Util.DiskSizeString(TheSR.FreeSpace(), 2),
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Util.DiskSizeString(TheSR.physical_size, 2));
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Enabled = true;
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Show = true;
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}
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else if (TheSR.PBDs.Count > 0 && TheSR.SupportsVdiCreate())
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{
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Description = DisabledReason;
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Enabled = false;
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Show = true;
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}
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}
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protected bool ExistingVDILocation()
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{
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return existingVDIs.Length > 0 && existingVDIs.All(vdi => vdi.SR.opaque_ref == TheSR.opaque_ref);
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}
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protected virtual string DisabledReason
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{
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get
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{
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if (TheSR.IsBroken(false))
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return Messages.SR_IS_BROKEN;
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if (TheSR.IsFull())
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return Messages.SRPICKER_SR_FULL;
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if (DiskSize > TheSR.physical_size)
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return string.Format(Messages.SR_PICKER_DISK_TOO_BIG, Util.DiskSizeString(DiskSize, 2),
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Util.DiskSizeString(TheSR.physical_size, 2));
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if (DiskSize > TheSR.FreeSpace())
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return string.Format(Messages.SR_PICKER_INSUFFICIENT_SPACE, Util.DiskSizeString(DiskSize, 2),
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Util.DiskSizeString(TheSR.FreeSpace(), 2));
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if (DiskSize > SR.DISK_MAX_SIZE)
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return string.Format(Messages.SR_PICKER_DISKSIZE_EXCEEDS_DISK_MAX_SIZE,
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Util.DiskSizeString(SR.DISK_MAX_SIZE, 0));
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return "";
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}
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}
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public int CompareTo(SrPickerItem other)
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{
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return base.CompareTo(other);
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}
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protected override int SameLevelSortOrder(CustomTreeNode other)
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{
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SrPickerItem otherItem = other as SrPickerItem;
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if (otherItem == null) //shouldn't ever happen!!!
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return -1;
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if (!otherItem.Enabled && Enabled)
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return -1;
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if (otherItem.Enabled && !Enabled)
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return 1;
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return base.SameLevelSortOrder(otherItem);
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}
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public static SrPickerItem Create(SR sr, SrPicker.SRPickerType usage, Host aff, long diskSize, VDI[] vdis)
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{
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switch (usage)
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{
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case SrPicker.SRPickerType.Migrate:
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return new SrPickerMigrateItem(sr, aff, diskSize, vdis);
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case SrPicker.SRPickerType.MoveOrCopy:
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return new SrPickerMoveCopyItem(sr, aff, diskSize, vdis);
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case SrPicker.SRPickerType.InstallFromTemplate:
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return new SrPickerInstallFromTemplateItem(sr, aff, diskSize, vdis);
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case SrPicker.SRPickerType.VM:
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return new SrPickerVmItem(sr, aff, diskSize, vdis);
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case SrPicker.SRPickerType.LunPerVDI:
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return new SrPickerLunPerVDIItem(sr, aff, diskSize, vdis);
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default:
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throw new ArgumentException("There is no SRPickerItem for the type: " + usage);
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}
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}
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}
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}
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