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using System;
using System.Collections.Generic;
using System.Text;
using XenAPI;
using XenAdmin.Core;
namespace XenAdmin.Actions
{
public class DetachVirtualDiskAction : PureAsyncAction
{
private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
private VDI vdi;
private VBD vbd;
private bool takeVDILock = true;
///
/// Detaches a virtual disk
///
/// The VDI to detach
/// The VM to detach it from
/// Whether it is necessary to lock the VDI (we may be part of another disk action)
public DetachVirtualDiskAction(VDI disk, VM vm, bool takeVDILock)
: base(disk.Connection, string.Format(Messages.ACTION_DISK_DETACHING_TITLE, disk.Name(), vm.Name(), false))
{
this.takeVDILock = takeVDILock;
vdi = disk;
if (takeVDILock)
vdi.Locked = true;
VM = vm;
VM.Locked = true;
foreach (VBD v in Connection.ResolveAll(VM.VBDs))
{
if (v.VDI.opaque_ref == vdi.opaque_ref)
{
vbd = v;
vbd.Locked = true;
}
}
}
protected override void Run()
{
log.DebugFormat("Detaching VDI '{0}'", Helpers.GetName(vdi));
Description = Messages.ACTION_DISK_DETACHING;
try
{
if (vbd != null && vbd.currently_attached && XenAPI.VBD.get_allowed_operations(Session, vbd.opaque_ref).Contains(XenAPI.vbd_operations.unplug))
{
RelatedTask = XenAPI.VBD.async_unplug(Session, vbd.opaque_ref);
PollToCompletion(0, 50);
}
}
catch (Exception exn)
{
log.Error(exn, exn);
throw;
}
finally
{
PercentComplete = 50;
RelatedTask = XenAPI.VBD.async_destroy(Session, vbd.opaque_ref);
PollToCompletion(51, 100);
}
Description = Messages.ACTION_DISK_DETACHED;
log.DebugFormat("Detached VDI '{0}'", Helpers.GetName(vdi));
}
protected override void Clean()
{
vbd.Locked = false;
if (takeVDILock)
vdi.Locked = false;
VM.Locked = false;
}
}
}