xenadmin/XenAdmin/Wizards/RollingUpgradeWizard/PlanActions/UpgradeHostPlanAction.cs

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using System;
using System.Collections.Generic;
using XenAdmin.Core;
using XenAPI;

namespace XenAdmin.Wizards.RollingUpgradeWizard.PlanActions
{
    class UpgradeHostPlanAction : UpgradeManualHostPlanAction
    {
        private readonly Dictionary<string, string> _arguments = new Dictionary<string, string>();

        public UpgradeHostPlanAction(Host host, Dictionary<string, string> arguments)
            : base(host)
        {
            _arguments = arguments;
        }

        public override bool IsManual
        {
            get { return false; }
        }

        protected override void RunWithSession(ref Session session)
        {
            Visible = true;

            string hostVersionBefore = CurrentHost.LongProductVersion();
            log.InfoFormat("Host '{0}' upgrading from version '{1}'", CurrentHost.Name(), hostVersionBefore);

            string value = Host.call_plugin(session, HostXenRef.opaque_ref, "prepare_host_upgrade.py", "main", _arguments);
            if (value.ToLower() == "true")
                base.RunWithSession(ref session);
            else
                throw new Exception(value);

            Host hostAfterReboot = GetResolvedHost();
            if (hostAfterReboot != null && Helpers.SameServerVersion(hostAfterReboot, hostVersionBefore))
            {
                log.ErrorFormat("Host '{0}' rebooted with the same version '{1}'", hostAfterReboot.Name(), hostAfterReboot.LongProductVersion());
                var error = new Exception(Messages.REBOOT_WITH_SAME_VERSION);
                if (hostAfterReboot.IsMaster())
                    throw error;
                Error = error;
            }
            if (hostAfterReboot != null)
                log.InfoFormat("Host '{0}' upgraded with version '{1}'", hostAfterReboot.Name(), hostAfterReboot.LongProductVersion());
            else
                log.InfoFormat("Cannot check host's version after reboot because the host '{0}' cannot be resolved", CurrentHost.Name());
        }
    }
}