xenadmin/XenModel/Actions/VM/VMMigrateAction.cs

/* Copyright (c) Citrix Systems, Inc. 
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using System;
using XenAPI;
using XenAdmin.Core;


namespace XenAdmin.Actions.VMActions
{
    public class VMMigrateAction : PureAsyncAction
    {

        public VMMigrateAction(VM vm, Host destinationHost)
            : base(vm.Connection, "")
        {
            VM = vm;
            Host = destinationHost;
            Pool = Helpers.GetPool(vm.Connection);

            var residentOn = vm.Connection.Resolve(vm.resident_on);

            Title = residentOn == null
                ? string.Format(Messages.ACTION_VM_MIGRATING_NON_RESIDENT, vm.NameWithLocation(), Host.NameWithLocation())
                : string.Format(Messages.ACTION_VM_MIGRATING_RESIDENT, vm.Name(), residentOn.NameWithLocation(), Host.NameWithLocation());
        }

        protected override void Run()
        {
            RelatedTask = VM.async_live_migrate(Session, VM.opaque_ref, Host.opaque_ref);
            try
            {
                PollToCompletion();
            }
            catch (Failure f)
            {
                if (f.ErrorDescription.Count >= 5 && f.ErrorDescription[0] == "VM_MIGRATE_FAILED"
                                                  && f.ErrorDescription[4].Contains("VDI_MISSING"))
                {
                    throw new Exception(Messages.MIGRATE_EJECT_TOOLS_ON_UPGRADE);
                }

                throw;
            }

            Description = Messages.ACTION_VM_MIGRATED;
        }
    }
}