xenadmin/XenAdmin/Wizards/RollingUpgradeWizard/RollingUpgradeWizard.cs

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using System.Collections.Generic;
using System.Linq;
using System.Threading;
using XenAdmin.Actions;
using XenAdmin.Controls;
using XenAdmin.Core;
using XenAdmin.Dialogs;
using System.Windows.Forms;
using XenAdmin.Diagnostics.Problems;
using XenAdmin.Wizards.PatchingWizard;
using XenAPI;

namespace XenAdmin.Wizards.RollingUpgradeWizard
{
    public partial class RollingUpgradeWizard : XenWizardBase
    {
        private readonly RollingUpgradeUpgradePage RollingUpgradeUpgradePage;
        private readonly RollingUpgradeWizardSelectPool RollingUpgradeWizardSelectPool;
        private readonly RollingUpgradeWizardPrecheckPage RollingUpgradeWizardPrecheckPage;
        private readonly RollingUpgradeWizardFirstPage RollingUpgradeWizardFirstPage;
        private readonly RollingUpgradeWizardUpgradeModePage RollingUpgradeWizardUpgradeModePage;
        private readonly RollingUpgradeExtrasPage RollingUpgradeExtrasPage;

        public RollingUpgradeWizard()
        {
            InitializeComponent();

            RollingUpgradeUpgradePage = new RollingUpgradeUpgradePage();
            RollingUpgradeWizardSelectPool = new RollingUpgradeWizardSelectPool();
            RollingUpgradeWizardPrecheckPage = new RollingUpgradeWizardPrecheckPage();
            RollingUpgradeWizardFirstPage = new RollingUpgradeWizardFirstPage();
            RollingUpgradeWizardUpgradeModePage = new RollingUpgradeWizardUpgradeModePage();
            RollingUpgradeExtrasPage = new RollingUpgradeExtrasPage();

            AddPage(RollingUpgradeWizardFirstPage);
            AddPage(RollingUpgradeWizardSelectPool);
            AddPage(RollingUpgradeWizardUpgradeModePage);
            //Here has to be inserted the installer location page if automatic
            AddPage(RollingUpgradeExtrasPage);
            AddPage(RollingUpgradeWizardPrecheckPage);
            AddPage(RollingUpgradeUpgradePage);
        }

        protected override void FinishWizard()
        {
            var brokenSRs = RollingUpgradeWizardSelectPool.SelectedCoordinators
                .Any(coordinator => coordinator != null && coordinator.Connection.Cache.SRs.Any(sr => sr.IsBroken()));
            if(brokenSRs)
            {
                using (var dlg = new WarningDialog(Messages.BROKEN_SRS_AFTER_UPGRADE))
                    dlg.ShowDialog(Program.MainWindow);
            }
            base.FinishWizard();
        }

        protected override void UpdateWizardContent(XenTabPage senderPage)
        {
            var prevPageType = senderPage.GetType();

            if (prevPageType == typeof(RollingUpgradeWizardSelectPool))
            {
                var selectedCoordinators = RollingUpgradeWizardSelectPool.SelectedCoordinators;
                RollingUpgradeWizardPrecheckPage.SelectedCoordinators = selectedCoordinators;

                var selectedPools = new List<Pool>();
                foreach (var coordinator in selectedCoordinators)
                {
                    var pool = Helpers.GetPoolOfOne(coordinator.Connection);
                    if (pool != null && !selectedPools.Contains(pool))
                        selectedPools.Add(pool);
                }

                RollingUpgradeUpgradePage.SelectedPools = selectedPools;
            }
            else if (prevPageType == typeof(RollingUpgradeWizardUpgradeModePage))
            {
                var manualModeSelected = RollingUpgradeWizardUpgradeModePage.ManualModeSelected;
                RollingUpgradeWizardPrecheckPage.ManualUpgrade = manualModeSelected;
                RollingUpgradeUpgradePage.ManualModeSelected = manualModeSelected;

                RollingUpgradeWizardPrecheckPage.InstallMethodConfig =
                    RollingUpgradeUpgradePage.InstallMethodConfig = RollingUpgradeWizardUpgradeModePage.InstallMethodConfig;
            }
            else if (prevPageType == typeof(RollingUpgradeWizardPrecheckPage))
                RollingUpgradeUpgradePage.PrecheckProblemsActuallyResolved = RollingUpgradeWizardPrecheckPage.PrecheckProblemsActuallyResolved;
            else if (prevPageType == typeof(RollingUpgradeExtrasPage))
            {
                RollingUpgradeUpgradePage.ApplySuppPackAfterUpgrade = RollingUpgradeExtrasPage.ApplySuppPackAfterUpgrade;
                RollingUpgradeUpgradePage.SelectedSuppPackPath = RollingUpgradeExtrasPage.SelectedSuppPack;
            }
        }

        protected override void OnShown(System.EventArgs e)
        {
            base.OnShown(e);

            if (Properties.Settings.Default.RollingUpgradeWizardShowFirstPage)
                NextStep();
        }

        private void RevertResolvedPreChecks()
        {
            var subActions = Problem.GetUnwindChangesActions(RollingUpgradeWizardPrecheckPage.PrecheckProblemsActuallyResolved);
            if (subActions.Count > 0)
            {
                using (MultipleAction multipleAction = new MultipleAction(xenConnection, Messages.REVERT_WIZARD_CHANGES,
                                                                          Messages.REVERTING_WIZARD_CHANGES,
                                                                          Messages.REVERTED_WIZARD_CHANGES,
                                                                          subActions, false, true))
                {
                    using (var dialog = new ActionProgressDialog(multipleAction, ProgressBarStyle.Blocks))
                        dialog.ShowDialog(Program.MainWindow);
                }
            }
        }

        protected override void OnCancel(ref bool cancel)
        {
            base.OnCancel(ref cancel);

            if (cancel)
                return;

            if (RollingUpgradeUpgradePage.Status == Status.NotStarted)
                RevertResolvedPreChecks();
        }

        private void ShowCanBeResumedInfo()
        {
            using (var dialog = new InformationDialog(Messages.ROLLING_UPGRADE_CAN_RESUME_UPGRADE)
                {WindowTitle = Messages.ROLLING_POOL_UPGRADE})
            {
                dialog.ShowDialog(Program.MainWindow);
            }
        }

        protected override void OnClosed(System.EventArgs e)
        {
            base.OnClosed(e);

            if (RollingUpgradeUpgradePage.Status == Status.Cancelled)
                ThreadPool.QueueUserWorkItem(o => Program.Invoke(Program.MainWindow, ShowCanBeResumedInfo));
        }
    }
}