mirror of
https://github.com/xcp-ng/xenadmin.git
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b94274949e
Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
647 lines
26 KiB
C#
647 lines
26 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.ComponentModel;
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using System.Diagnostics;
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using System.Drawing;
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using System.Reflection;
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using log4net;
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using XenAdmin.Controls;
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using XenAdmin.Wizards.PatchingWizard.PlanActions;
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using XenAPI;
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using System.Linq;
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using XenAdmin.Core;
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using System.Text;
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using System.Windows.Forms;
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using XenAdmin.Diagnostics.Problems;
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using XenAdmin.Dialogs;
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using XenAdmin.Wizards.RollingUpgradeWizard.PlanActions;
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namespace XenAdmin.Wizards.PatchingWizard
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{
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public enum Status { NotStarted, Started, Cancelled, Completed }
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public abstract partial class AutomatedUpdatesBasePage : XenTabPage
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{
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protected static readonly ILog log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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protected bool _thisPageIsCompleted;
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public List<Problem> PrecheckProblemsActuallyResolved { private get; set; }
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public List<Pool> SelectedPools { private get; set; }
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public bool ApplyUpdatesToNewVersion { get; set; }
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public Status Status { get; private set; }
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protected bool IsSuccess
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{
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get { return _thisPageIsCompleted && !failedWorkers.Any(); }
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}
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private List<UpdateProgressBackgroundWorker> backgroundWorkers = new List<UpdateProgressBackgroundWorker>();
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private List<UpdateProgressBackgroundWorker> failedWorkers = new List<UpdateProgressBackgroundWorker>();
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private List<HostUpdateMapping> patchMappings = new List<HostUpdateMapping>();
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protected List<string> hostsThatWillRequireReboot = new List<string>();
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public Dictionary<XenServerPatch, string> AllDownloadedPatches = new Dictionary<XenServerPatch, string>();
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public AutomatedUpdatesBasePage()
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{
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InitializeComponent();
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panel1.Visible = false;
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}
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#region XenTabPage overrides
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public override bool EnablePrevious()
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{
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return false;
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}
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public override bool EnableNext()
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{
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return _thisPageIsCompleted;
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}
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private bool _cancelEnabled = true;
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public override bool EnableCancel()
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{
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return _cancelEnabled;
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}
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public override void PageCancelled()
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{
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if (!_thisPageIsCompleted)
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{
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Status = Status.Cancelled;
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backgroundWorkers.ForEach(bgw => bgw.CancelAsync());
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}
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}
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protected override void PageLoadedCore(PageLoadedDirection direction)
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{
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if (_thisPageIsCompleted)
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return;
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panel1.Visible = false;
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Status = Status.NotStarted;
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labelTitle.Text = BlurbText();
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if (!StartUpgradeWorkers())
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{
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Status = Status.Completed;
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_thisPageIsCompleted = true;
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OnPageUpdated();
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}
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else
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{
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Status = Status.Started;
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}
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}
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#endregion
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#region Virtual members
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protected abstract string BlurbText();
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protected abstract string SuccessMessageOnCompletion(bool multiplePools);
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protected abstract string FailureMessageOnCompletion(bool multiplePools);
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protected abstract string SuccessMessagePerPool(Pool pool);
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protected abstract string FailureMessagePerPool(bool multipleErrors);
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protected abstract string UserCancellationMessage();
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protected abstract List<HostPlan> GenerateHostPlans(Pool pool, out List<Host> applicableHosts);
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protected virtual bool SkipInitialPlanActions(Host host)
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{
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return false;
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}
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protected virtual void DoAfterInitialPlanActions(UpdateProgressBackgroundWorker bgw, Host host, List<Host> hosts) { }
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#endregion
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#region background workers
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private bool StartUpgradeWorkers()
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{
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//reset the background workers
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backgroundWorkers = new List<UpdateProgressBackgroundWorker>();
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failedWorkers = new List<UpdateProgressBackgroundWorker>();
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bool atLeastOneWorkerStarted = false;
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foreach (var pool in SelectedPools)
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{
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List<Host> applicableHosts;
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var planActions = GenerateHostPlans(pool, out applicableHosts);
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var finalActions = new List<PlanAction>();
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if (PrecheckProblemsActuallyResolved != null)
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{
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//add a revert pre-check action for this pool
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var curPool = pool;
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var problemsToRevert = PrecheckProblemsActuallyResolved.Where(a =>
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a.SolutionAction != null && Helpers.GetPoolOfOne(a.SolutionAction.Connection).Equals(curPool)).ToList();
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if (problemsToRevert.Count > 0)
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finalActions.Add(new UnwindProblemsAction(problemsToRevert, pool.Connection));
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}
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if (planActions.Count > 0)
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{
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atLeastOneWorkerStarted = true;
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StartNewWorker(pool, planActions, finalActions);
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}
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}
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return atLeastOneWorkerStarted;
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}
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private void StartNewWorker(Pool pool, List<HostPlan> planActions, List<PlanAction> finalActions)
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{
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var bgw = new UpdateProgressBackgroundWorker(pool, planActions, finalActions)
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{
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WorkerReportsProgress = true,
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WorkerSupportsCancellation = true
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};
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bgw.DoWork += WorkerDoWork;
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bgw.ProgressChanged += WorkerProgressChanged;
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bgw.RunWorkerCompleted += WorkerCompleted;
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backgroundWorkers.Add(bgw);
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bgw.RunWorkerAsync();
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}
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private void WorkerProgressChanged(object sender, ProgressChangedEventArgs e)
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{
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var bgw = sender as UpdateProgressBackgroundWorker;
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if (bgw == null)
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return;
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if (!bgw.CancellationPending)
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{
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PlanAction action = (PlanAction)e.UserState;
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if (action != null)
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{
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if (!action.IsComplete)
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{
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if (!bgw.InProgressActions.Contains(action))
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bgw.InProgressActions.Add(action);
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}
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else
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{
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if (!bgw.DoneActions.Contains(action))
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bgw.DoneActions.Add(action);
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bgw.InProgressActions.Remove(action);
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if (action.Error == null)
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{
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// remove the successful action from the cleanup actions (we are running the cleanup actions in case of failures or if the user cancelled the process, but we shouldn't re-run the actions that have already been run)
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bgw.CleanupActions.Remove(action);
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}
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else
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{
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if (!failedWorkers.Contains(bgw))
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failedWorkers.Add(bgw);
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}
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}
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}
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UpdateStatus();
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}
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}
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private void UpdateStatus()
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{
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var newVal = backgroundWorkers.Sum(b => b.PercentComplete) / backgroundWorkers.Count;
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if (newVal < 0)
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newVal = 0;
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else if (newVal > 100)
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newVal = 100;
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progressBar.Value = (int)newVal;
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var allsb = new StringBuilder();
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foreach (var bgw in backgroundWorkers)
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{
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int bgwErrorCount = 0;
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int bgwCancellationCount = 0;
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var sb = new StringBuilder();
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var errorSb = new StringBuilder();
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if (!string.IsNullOrEmpty(bgw.Name))
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sb.AppendLine(string.Format("{0}:", bgw.Name));
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foreach (var pa in bgw.DoneActions)
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{
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pa.ProgressHistory.ForEach(step => sb.AppendIndented(step).AppendLine());
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if (pa.Error != null)
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{
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if (pa.Error is CancelledException)
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{
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bgwCancellationCount++;
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continue;
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}
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var innerEx = pa.Error.InnerException as Failure;
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errorSb.AppendLine(innerEx == null ? pa.Error.Message : innerEx.Message);
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if (pa.IsSkippable)
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{
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Debug.Assert(!string.IsNullOrEmpty(pa.Title));
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errorSb.AppendLine(string.Format(Messages.RPU_WIZARD_ERROR_SKIP_MSG, pa.Title)).AppendLine();
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}
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bgwErrorCount++;
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}
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}
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foreach (var pa in bgw.InProgressActions)
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{
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pa.ProgressHistory.ForEach(step => sb.AppendIndented(step).AppendLine());
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}
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sb.AppendLine();
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if (bgwCancellationCount > 0)
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{
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sb.AppendIndented(UserCancellationMessage()).AppendLine();
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}
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else if (bgwErrorCount > 0)
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{
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sb.AppendIndented(FailureMessagePerPool(bgwErrorCount > 1)).AppendLine();
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sb.AppendIndented(errorSb);
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}
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else if (!bgw.IsBusy)
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{
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sb.AppendIndented(SuccessMessagePerPool(bgw.Pool)).AppendLine();
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}
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sb.AppendLine();
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allsb.Append(sb);
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}
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textBoxLog.Text = allsb.ToString();
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textBoxLog.SelectionStart = textBoxLog.Text.Length;
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textBoxLog.ScrollToCaret();
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}
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private void WorkerDoWork(object sender, DoWorkEventArgs doWorkEventArgs)
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{
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var bgw = sender as UpdateProgressBackgroundWorker;
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if (bgw == null)
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return;
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PlanAction action = null;
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try
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{
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foreach (var hp in bgw.HostPlans)
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{
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var host = hp.Host;
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// Step 1: InitialPlanActions (e.g. upgrade the host in the RPU case)
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bgw.ProgressIncrement = bgw.InitialActionsIncrement(hp);
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if (!SkipInitialPlanActions(host))
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{
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var initialActions = hp.InitialPlanActions;
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foreach (var a in initialActions)
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{
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action = a;
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bgw.RunPlanAction(action, ref doWorkEventArgs);
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}
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}
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DoAfterInitialPlanActions(bgw, host, bgw.HostPlans.Select(h => h.Host).ToList());
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// Step 2: UpdatesPlanActions (priority update action)
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bgw.ProgressIncrement = bgw.UpdatesActionsIncrement(hp);
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var planActions = hp.UpdatesPlanActions;
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foreach (var a in planActions)
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{
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action = a;
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bgw.RunPlanAction(action, ref doWorkEventArgs);
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}
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// Step 3: Rearrange DelayedActions
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var suppPackPlanAction = (RpuUploadAndApplySuppPackPlanAction)planActions.FirstOrDefault(pa => pa is RpuUploadAndApplySuppPackPlanAction);
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if (suppPackPlanAction != null)
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{
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foreach (var dpa in suppPackPlanAction.DelayedPlanActions)
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{
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if (!hp.DelayedPlanActions.Exists(a => a.GetType() == dpa.GetType()))
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hp.DelayedPlanActions.Add(dpa);
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}
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}
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var restartHostPlanAction = (RestartHostPlanAction)hp.DelayedPlanActions.FirstOrDefault(a => a is RestartHostPlanAction);
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if (restartHostPlanAction != null)
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{
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if (restartHostPlanAction.SkipRestartHost(host))
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{
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log.Debug("Did not find patches requiring reboot (live patching succeeded)."
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+ " Skipping scheduled restart.");
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hp.DelayedPlanActions.RemoveAll(a => a is RestartHostPlanAction);
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}
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else
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{
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hp.DelayedPlanActions.RemoveAll(a => a is RestartAgentPlanAction);
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}
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}
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// Step 4: DelayedActions
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bgw.ProgressIncrement = bgw.DelayedActionsIncrement(hp);
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// running delayed actions
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var delayedActions = hp.DelayedPlanActions;
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var restartActions = delayedActions.Where(a => a is RestartHostPlanAction).ToList();
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foreach (var a in restartActions)
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{
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action = a;
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bgw.RunPlanAction(action, ref doWorkEventArgs);
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}
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var otherActions = delayedActions.Where(a => !(a is RestartHostPlanAction)).ToList();
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foreach (var a in otherActions)
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{
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action = a;
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bgw.RunPlanAction(action, ref doWorkEventArgs);
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}
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}
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// Step 5: FinalActions (eg. revert pre-checks)
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bgw.ProgressIncrement = bgw.FinalActionsIncrement;
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foreach (var a in bgw.FinalActions)
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{
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action = a;
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bgw.RunPlanAction(action, ref doWorkEventArgs);
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}
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}
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catch (Exception e)
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{
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if (action.Error == null)
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action.Error = new Exception(Messages.ERROR_UNKNOWN);
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log.ErrorFormat("Failed to carry out plan. {0} {1}", action.CurrentProgressStep, e);
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doWorkEventArgs.Result = new Exception(action.CurrentProgressStep, e);
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}
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}
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private void WorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
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{
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if (e.Cancelled)
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{
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Status = Status.Completed;
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panel1.Visible = true;
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labelError.Text = UserCancellationMessage();
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pictureBox1.Image = Images.StaticImages.cancelled_action_16;
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buttonRetry.Visible = buttonSkip.Visible = false;
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_thisPageIsCompleted = true;
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_cancelEnabled = false;
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}
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else
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{
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var bgw = sender as UpdateProgressBackgroundWorker;
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var someWorkersCancelled = false;
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if (bgw != null)
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{
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var workerSucceeded = true;
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var failedAction = bgw.DoneActions.FirstOrDefault(a => a.Error != null && !(a.Error is CancelledException));
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if (failedAction != null)
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{
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workerSucceeded = false;
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if (failedAction.IsSkippable)
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{
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Debug.Assert(!string.IsNullOrEmpty(failedAction.Title));
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bgw.FirstFailedSkippableAction = failedAction;
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}
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}
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if (bgw.DoneActions.Any(a => a.Error is CancelledException))
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{
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workerSucceeded = false;
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someWorkersCancelled = true;
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}
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if (workerSucceeded)
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bgw.PercentComplete = 100;
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}
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//if all finished
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if (backgroundWorkers.All(w => !w.IsBusy))
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{
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Status = Status.Completed;
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panel1.Visible = true;
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if (failedWorkers.Any())
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{
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labelError.Text = FailureMessageOnCompletion(backgroundWorkers.Count > 1);
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pictureBox1.Image = Images.StaticImages._000_error_h32bit_16;
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buttonRetry.Visible = true;
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buttonSkip.Visible = false;
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if (failedWorkers.Any(w => w.FirstFailedSkippableAction != null))
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buttonSkip.Visible = true;
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}
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else if (someWorkersCancelled)
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{
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labelError.Text = UserCancellationMessage();
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pictureBox1.Image = Images.StaticImages.cancelled_action_16;
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buttonRetry.Visible = buttonSkip.Visible = false;
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}
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else
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{
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labelError.Text = SuccessMessageOnCompletion(backgroundWorkers.Count > 1);
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pictureBox1.Image = Images.StaticImages._000_Tick_h32bit_16;
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buttonRetry.Visible = buttonSkip.Visible = false;
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}
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_thisPageIsCompleted = true;
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_cancelEnabled = false;
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}
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}
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UpdateStatus();
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OnPageUpdated();
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}
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#endregion
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private void RetryFailedActions()
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{
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panel1.Visible = false;
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failedWorkers.ForEach(bgw => bgw.FirstFailedSkippableAction = null);
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var workers = new List<UpdateProgressBackgroundWorker>(failedWorkers);
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failedWorkers.Clear();
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foreach (var failedWorker in workers)
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{
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failedWorker.RunWorkerAsync();
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}
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_thisPageIsCompleted = false;
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_cancelEnabled = true;
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OnPageUpdated();
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}
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private void SkipFailedActions()
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{
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var skippableWorkers = failedWorkers.Where(w => w.FirstFailedSkippableAction != null).ToList();
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var msg = string.Join(Environment.NewLine, skippableWorkers.Select(w => w.FirstFailedSkippableAction.Title));
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using (var dlg = new ThreeButtonDialog(
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new ThreeButtonDialog.Details(SystemIcons.Warning,
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string.Format(skippableWorkers.Count > 1 ? Messages.MESSAGEBOX_SKIP_RPU_STEPS : Messages.MESSAGEBOX_SKIP_RPU_STEP, msg),
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ParentForm != null ? ParentForm.Text : Messages.XENCENTER),
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ThreeButtonDialog.ButtonYes,
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ThreeButtonDialog.ButtonNo))
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{
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if (dlg.ShowDialog(this) != DialogResult.Yes)
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return;
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}
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panel1.Visible = false;
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foreach (var worker in skippableWorkers)
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{
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failedWorkers.Remove(worker);
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worker.RunWorkerAsync();
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}
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_thisPageIsCompleted = false;
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_cancelEnabled = true;
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OnPageUpdated();
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}
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private void buttonRetry_Click(object sender, EventArgs e)
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{
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RetryFailedActions();
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}
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private void buttonSkip_Click(object sender, EventArgs e)
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{
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SkipFailedActions();
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}
|
|
|
|
protected HostPlan GetUpdatePlanActionsForHost(Host host, List<Host> hosts, List<XenServerPatch> minimalPatches,
|
|
List<XenServerPatch> uploadedPatches, KeyValuePair<XenServerPatch, string> patchFromDisk, bool repatriateVms = true)
|
|
{
|
|
var patchSequence = Updates.GetPatchSequenceForHost(host, minimalPatches);
|
|
if (patchSequence == null)
|
|
return new HostPlan(host, null, null, null);
|
|
|
|
var planActionsPerHost = new List<PlanAction>();
|
|
var delayedActionsPerHost = new List<PlanAction>();
|
|
|
|
foreach (var patch in patchSequence)
|
|
{
|
|
if (!uploadedPatches.Contains(patch))
|
|
{
|
|
planActionsPerHost.Add(new DownloadPatchPlanAction(host.Connection, patch, AllDownloadedPatches, patchFromDisk));
|
|
planActionsPerHost.Add(new UploadPatchToMasterPlanAction(this, host.Connection, patch, patchMappings, AllDownloadedPatches, patchFromDisk, true));
|
|
uploadedPatches.Add(patch);
|
|
}
|
|
|
|
planActionsPerHost.Add(new PatchPrecheckOnHostPlanAction(host.Connection, patch, host, patchMappings, hostsThatWillRequireReboot));
|
|
planActionsPerHost.Add(new ApplyXenServerPatchPlanAction(host, patch, patchMappings));
|
|
|
|
var action = GetAfterApplyGuidanceAction(host, patch.after_apply_guidance);
|
|
if (action != null)
|
|
{
|
|
if (patch.GuidanceMandatory)
|
|
{
|
|
// if this update requires a mandatory toolstack restart and there is a pending host reboot in the delayed actions,
|
|
// then the pending reboot should be carried out instead
|
|
if (patch.after_apply_guidance == after_apply_guidance.restartXAPI && delayedActionsPerHost.Any(a => a is RestartHostPlanAction))
|
|
{
|
|
// replace the action with a host reboot action which will fall back to a toolstack restart if the reboot is not needed because the live patching succedeed
|
|
action = new RestartHostPlanAction(host, host.GetRunningVMs(), true, true, hostsThatWillRequireReboot);
|
|
}
|
|
|
|
planActionsPerHost.Add(action);
|
|
// remove all delayed actions of the same kind that has already been added
|
|
// (because this action is guidance-mandatory=true, therefore
|
|
// it will run immediately, making delayed ones obsolete)
|
|
delayedActionsPerHost.RemoveAll(a => action.GetType() == a.GetType());
|
|
}
|
|
else
|
|
{
|
|
// add the action if it's not already in the list
|
|
if (delayedActionsPerHost.All(a => a.GetType() != action.GetType()))
|
|
delayedActionsPerHost.Add(action);
|
|
}
|
|
}
|
|
|
|
var isLastHostInPool = hosts.IndexOf(host) == hosts.Count - 1;
|
|
if (isLastHostInPool)
|
|
{
|
|
// add cleanup action for current patch at the end of the update seuence for the last host in the pool
|
|
var master = Helpers.GetMaster(host.Connection);
|
|
planActionsPerHost.Add(new RemoveUpdateFileFromMasterPlanAction(master, patchMappings, patch));
|
|
}
|
|
}
|
|
|
|
if (repatriateVms)
|
|
{
|
|
var lastRestart = delayedActionsPerHost.FindLast(a => a is RestartHostPlanAction)
|
|
?? planActionsPerHost.FindLast(a => a is RestartHostPlanAction);
|
|
|
|
if (lastRestart != null)
|
|
((RestartHostPlanAction) lastRestart).EnableOnly = false;
|
|
}
|
|
|
|
return new HostPlan(host, null, planActionsPerHost, delayedActionsPerHost);
|
|
}
|
|
|
|
private PlanAction GetAfterApplyGuidanceAction(Host host, after_apply_guidance guidance)
|
|
{
|
|
switch (guidance)
|
|
{
|
|
case after_apply_guidance.restartHost:
|
|
return new RestartHostPlanAction(host, host.GetRunningVMs(), true, false, hostsThatWillRequireReboot);
|
|
case after_apply_guidance.restartXAPI:
|
|
return new RestartAgentPlanAction(host);
|
|
case after_apply_guidance.restartHVM:
|
|
return new RebootVMsPlanAction(host, host.GetRunningHvmVMs());
|
|
case after_apply_guidance.restartPV:
|
|
return new RebootVMsPlanAction(host, host.GetRunningPvVMs());
|
|
default:
|
|
return null;
|
|
}
|
|
}
|
|
}
|
|
}
|