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749518e94c
(either when cancelling the wizard itself or exiting the application). Implemented in the first instance for compiling the server status report. Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
675 lines
27 KiB
C#
675 lines
27 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.Drawing;
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using System.Linq;
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using System.Threading;
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using System.Windows.Forms;
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using XenAdmin.Actions;
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using XenAdmin.Controls;
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using XenAdmin.Core;
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using XenAdmin.Diagnostics.Checks;
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using XenAdmin.Diagnostics.Checks.DR;
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using XenAdmin.Diagnostics.Problems;
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using XenAdmin.Dialogs;
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using XenAPI;
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using XenAdmin.Actions.DR;
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namespace XenAdmin.Wizards.DRWizards
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{
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public partial class DRFailoverWizardPrecheckPage : XenTabPage
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{
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private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
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public event Action<string> NewDrTaskIntroduced;
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public event Action<XenRef<SR>> SrIntroduced;
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private Pool _pool;
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public Pool Pool { set { _pool = value; } }
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private Dictionary<XenRef<VDI>, PoolMetadata> selectedPoolMetadata;
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public Dictionary<XenRef<VDI>, PoolMetadata> SelectedPoolMetadata {set { selectedPoolMetadata = value; }}
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public List<AsyncAction> RevertActions = new List<AsyncAction>();
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private string _nextButtonText = Messages.WIZARD_BUTTON_NEXT;
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public override string NextText(bool isLastPage)
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{
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return _nextButtonText;
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}
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public DRFailoverWizardPrecheckPage()
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{
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InitializeComponent();
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dataGridView1.BackgroundColor = dataGridView1.DefaultCellStyle.BackColor;
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}
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public override string PageTitle
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{
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get
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{
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switch (WizardType)
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{
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case DRWizardType.Failback:
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return Messages.DR_WIZARD_PRECHECKPAGE_TITLE_FAILBACK;
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default:
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return Messages.DR_WIZARD_PRECHECKPAGE_TITLE_FAILOVER;
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}
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}
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}
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public override string Text
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{
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get
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{
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return Messages.DR_WIZARD_PRECHECKPAGE_TEXT;
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}
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}
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public override string HelpID
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{
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get
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{
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switch (WizardType)
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{
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case DRWizardType.Failback:
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return "Failback_Prechecks";
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case DRWizardType.Dryrun:
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return "Dryrun_Prechecks";
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default:
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return "Failover_Prechecks";
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}
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}
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}
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public override bool EnablePrevious()
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{
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return _worker != null && !_worker.IsBusy;
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}
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private int PercentageSelectedObjects(int i)
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{
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int count = 0;
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foreach (var poolMetadata in selectedPoolMetadata.Values)
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{
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count += (poolMetadata.VmAppliances.Count + poolMetadata.Vms.Count);
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}
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return (int)(((float)i / (float)(count)) * 100);
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}
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private BackgroundWorker _worker = null;
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protected override void PageLoadedCore(PageLoadedDirection direction)
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{
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SetupLabels();
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try
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{
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if (direction == PageLoadedDirection.Back)
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return;
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RefreshRechecks();
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}
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catch (Exception e)
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{
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log.Error(e, e);
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throw;//better throw an exception rather than closing the wizard suddenly and silently
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}
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}
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public DRWizardType WizardType { private get; set; }
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private void SetupLabels()
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{
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switch (WizardType)
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{
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case DRWizardType.Failback:
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labelContinue.Text = Messages.DR_WIZARD_PRECHECKPAGE_CONTINUE_FAILBACK;
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_nextButtonText = Messages.DR_WIZARD_PRECHECKPAGE_NEXT_FAILBACK;
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break;
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case DRWizardType.Dryrun:
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labelContinue.Text = Messages.DR_WIZARD_PRECHECKPAGE_CONTINUE_DRYRUN;
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_nextButtonText = Messages.DR_WIZARD_PRECHECKPAGE_NEXT_FAILOVER;
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break;
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default:
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labelContinue.Text = Messages.DR_WIZARD_PRECHECKPAGE_CONTINUE_FAILOVER;
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_nextButtonText = Messages.DR_WIZARD_PRECHECKPAGE_NEXT_FAILOVER;
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break;
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}
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}
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protected void RefreshRechecks()
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{
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buttonResolveAll.Enabled = buttonReCheckProblems.Enabled = false;
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_worker = null;
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_worker = new BackgroundWorker();
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_worker.DoWork += new DoWorkEventHandler(worker_DoWork);
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_worker.WorkerReportsProgress = true;
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_worker.WorkerSupportsCancellation = true;
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_worker.ProgressChanged += new ProgressChangedEventHandler(worker_ProgressChanged);
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_worker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(_worker_RunWorkerCompleted);
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_worker.RunWorkerAsync();
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}
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void _worker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
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{
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if (!e.Cancelled)
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OnPageUpdated();
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progressBar1.Value = 100;
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bool problemsFound = false;
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foreach (PreCheckGridRow row in dataGridView1.Rows)
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{
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PreCheckItemRow preCheckRow = row as PreCheckItemRow;
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if (preCheckRow != null && preCheckRow.Problem != null)
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{
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problemsFound = true;
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break;
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}
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}
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buttonResolveAll.Enabled = problemsFound;
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buttonReCheckProblems.Enabled = true;
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}
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void worker_ProgressChanged(object sender, ProgressChangedEventArgs e)
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{
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try
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{
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var row = e.UserState as DataGridViewRow;
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if (row != null && !dataGridView1.Rows.Contains(row))
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{
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PreCheckItemRow preCheckRow = row as PreCheckItemRow;
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if (preCheckRow != null && preCheckRow.IsProblem)
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preCheckRow.Visible = true;
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else
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row.Visible = !checkBoxViewPrecheckFailuresOnly.Checked;
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dataGridView1.Rows.Add(row);
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}
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int step = (int)((1.0 / ((float)_numberChecks)) * e.ProgressPercentage);
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progressBar1.Value += (step + progressBar1.Value) > 100 ? 0 : step;
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}
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catch (Exception) { }
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}
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private DataGridViewRow ExecuteCheck(Check check)
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{
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var problems = check.RunAllChecks();
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if (problems.Count != 0)
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{
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// None of the checks used in the DR wizard returns more than one problem, so we just take the first.
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// (Even if they did, we would only suffer the usability problem described in CA-77990).
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return new PreCheckItemRow(problems[0]);
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}
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return new PreCheckItemRow(check);
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}
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private int _numberChecks = 0;
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private readonly object _lock = new object();
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void worker_DoWork(object sender, DoWorkEventArgs e)
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{
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lock (_lock)
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{
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Program.Invoke(this, () =>
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{
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dataGridView1.Rows.Clear();
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progressBar1.Value = 0;
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});
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RevertActions.Clear();
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List<KeyValuePair<string, List<Check>>> checks = GenerateChecks();
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_numberChecks = checks.Count;
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for (int i = 0; i < checks.Count; i++)
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{
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List<Check> checkGroup = checks[i].Value;
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DataGridViewRow row =
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new PreCheckHeaderRow(string.Format(Messages.DR_WIZARD_PRECHECKPAGE_HEADER, i + 1,
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checks.Count, checks[i].Key));
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_worker.ReportProgress(5, row);
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Session metadataSession = null;
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// execute checks
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for (int j = 0; j < checkGroup.Count; j++)
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{
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if (_worker.CancellationPending)
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{
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e.Cancel = true;
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return;
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}
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Check check = checkGroup[j];
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// special case - AssertCanBeRecoveredCheck - we need to open the metadata database
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if (check is AssertCanBeRecoveredCheck)
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{
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AssertCanBeRecoveredCheck thisCheck = check as AssertCanBeRecoveredCheck;
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AssertCanBeRecoveredCheck prevCheck = j > 0
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? checkGroup[j - 1] as
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AssertCanBeRecoveredCheck
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: null;
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if (prevCheck == null || prevCheck.Vdi.uuid != thisCheck.Vdi.uuid)
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{
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// close previous metadata session
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if (metadataSession != null)
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metadataSession.logout();
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// open metadata database
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VdiOpenDatabaseAction action = new VdiOpenDatabaseAction(Connection,
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((AssertCanBeRecoveredCheck
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)checkGroup[0]).Vdi);
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action.RunExternal(action.Session);
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if (action.Succeeded && action.MetadataSession != null)
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metadataSession = action.MetadataSession;
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}
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// run check
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if (metadataSession != null)
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{
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thisCheck.MetadataSession = metadataSession;
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row = ExecuteCheck(thisCheck);
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_worker.ReportProgress(PercentageSelectedObjects(j + 1), row);
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// close metadata session if this is the last check
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if (j == checkGroup.Count - 1)
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metadataSession.logout();
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}
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}
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else
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{
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row = ExecuteCheck(check);
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_worker.ReportProgress(PercentageSelectedObjects(j + 1), row);
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}
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}
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}
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}
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}
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private List<KeyValuePair<string, List<Check>>> GenerateChecks()
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{
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List<KeyValuePair<string, List<Check>>> checks = new List<KeyValuePair<string, List<Check>>>();
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List<Check> checkGroup;
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//HA checks
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if (WizardType == DRWizardType.Dryrun)
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{
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checks.Add(new KeyValuePair<string, List<Check>>(Messages.DR_WIZARD_CHECKING_HA_STATUS,
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new List<Check>()));
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checkGroup = checks[checks.Count - 1].Value;
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checkGroup.Add(new DrHAEnabledCheck(_pool));
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}
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// check if selected VMs and appliances are still running in the source pool
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if (WizardType != DRWizardType.Dryrun)
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{
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checkGroup = new List<Check>();
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foreach (PoolMetadata poolMetadata in selectedPoolMetadata.Values)
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{
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// is source pool connected?
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PoolMetadata metadata = poolMetadata;
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Pool sourcePool = ConnectionsManager.XenConnectionsCopy.Select
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(connection => Helpers.GetPoolOfOne(connection)).FirstOrDefault
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(pool => pool != null && pool.uuid == metadata.Pool.uuid);
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if (sourcePool != null)
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{
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foreach (VM_appliance vmAppliance in poolMetadata.VmAppliances.Values)
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{
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checkGroup.Add(new RunningVmApplianceCheck(vmAppliance, sourcePool));
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}
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foreach (VM vm in poolMetadata.Vms.Values)
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{
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if (vm.appliance.opaque_ref != null && vm.appliance.opaque_ref.StartsWith("OpaqueRef:") &&
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vm.appliance.opaque_ref != "OpaqueRef:NULL")
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{
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//VM included in an appliance
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continue;
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}
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checkGroup.Add(new RunningVmCheck(vm, sourcePool));
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}
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}
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}
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if (checkGroup.Count > 0)
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checks.Add(
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new KeyValuePair<string, List<Check>>(
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Messages.DR_WIZARD_CHECKING_POWER_STATE_IN_SOURCE_POOLS, checkGroup));
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}
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//Existing VMs and appliances checks
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checkGroup = new List<Check>();
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foreach (PoolMetadata poolMetadata in selectedPoolMetadata.Values)
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{
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foreach (VM_appliance vmAppliance in poolMetadata.VmAppliances.Values)
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{
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PoolMetadata metadata = poolMetadata;
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List<VM> vms = (from vmRef in vmAppliance.VMs
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where metadata.Vms.ContainsKey(vmRef)
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select metadata.Vms[vmRef]).ToList();
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checkGroup.Add(new ExistingVmApplianceCheck(vmAppliance, vms, _pool));
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}
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foreach (VM vm in poolMetadata.Vms.Values)
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{
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if (vm.appliance.opaque_ref != null && vm.appliance.opaque_ref.StartsWith("OpaqueRef:") &&
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vm.appliance.opaque_ref != "OpaqueRef:NULL")
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{
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//VM included in an appliance
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continue;
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}
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checkGroup.Add(new ExistingVmCheck(vm, _pool));
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}
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}
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if (checkGroup.Count > 0)
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checks.Add(new KeyValuePair<string, List<Check>>(String.Format(Messages.DR_WIZARD_CHECKING_EXISTING_APPLIANCES_AND_VMS, _pool.Name()), checkGroup));
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//VM and appliance can be recovered checks
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checks.Add(new KeyValuePair<string, List<Check>>(String.Format(Messages.DR_WIZARD_CHECKING_VMS_CAN_BE_RECOVERED, _pool.Name()), new List<Check>()));
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checkGroup = checks[checks.Count - 1].Value;
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foreach (PoolMetadata poolMetadata in selectedPoolMetadata.Values)
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{
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foreach (VM_appliance vmAppliance in poolMetadata.VmAppliances.Values)
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{
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checkGroup.Add(new AssertCanBeRecoveredCheck(vmAppliance, _pool, poolMetadata.Vdi));
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}
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foreach (VM vm in poolMetadata.Vms.Values)
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{
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if (vm.appliance.opaque_ref != null && vm.appliance.opaque_ref.StartsWith("OpaqueRef:") && vm.appliance.opaque_ref != "OpaqueRef:NULL")
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{
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//VM included in an appliance
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continue;
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}
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checkGroup.Add(new AssertCanBeRecoveredCheck(vm, _pool, poolMetadata.Vdi));
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}
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}
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return checks;
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}
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protected override void PageLeaveCore(PageLoadedDirection direction, ref bool cancel)
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{
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if (direction == PageLoadedDirection.Back)
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{
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_worker.CancelAsync();
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_worker = null;
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}
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}
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public override bool EnableNext()
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{
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int problemsCount = 0;
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foreach (DataGridViewRow row in dataGridView1.Rows)
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{
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PreCheckItemRow preCheckRow = row as PreCheckItemRow;
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if (preCheckRow != null && preCheckRow.IsProblem)
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{
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problemsCount++;
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}
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}
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if (_worker != null && _worker.IsBusy)
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labelPrecheckStatus.Text = Messages.DR_WIZARD_PRECHECKPAGE_STATUS_RUNNING;
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else
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{
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labelPrecheckStatus.Text = problemsCount > 0
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? string.Format(Messages.DR_WIZARD_PRECHECKPAGE_STATUS_FAILURE, problemsCount)
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: Messages.DR_WIZARD_PRECHECKPAGE_STATUS_SUCCESS;
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}
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bool result = _worker != null && !_worker.IsBusy && problemsCount==0;
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panelErrorsFound.Visible = !result;
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labelContinue.Visible = result;
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return result;
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}
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public override void PageCancelled(ref bool cancel)
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{
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if (_worker != null)
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_worker.CancelAsync();
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}
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internal List<string> GetWarnings()
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{
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var warnings = new List<string>();
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foreach (DataGridViewRow row in dataGridView1.Rows)
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{
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var preCheckRow = row as PreCheckItemRow;
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if (preCheckRow != null && preCheckRow.IsWarning)
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{
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warnings.Add(preCheckRow.Description);
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}
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}
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return warnings;
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}
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private void ExecuteSolution(PreCheckItemRow preCheckRow)
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{
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bool cancelled;
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AsyncAction action = preCheckRow.Problem.GetSolutionAction(out cancelled);
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if (action != null)
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{
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action.Completed += action_Completed;
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using (var progressDialog = new ActionProgressDialog(action, ProgressBarStyle.Blocks))
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progressDialog.ShowDialog(this);
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if (action.Succeeded)
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{
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var revertAction = preCheckRow.Problem.CreateUnwindChangesAction();
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if (revertAction != null)
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RevertActions.Add(revertAction);
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}
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}
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}
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private void action_Completed(ActionBase sender)
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{
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Thread.Sleep(1000);
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Program.Invoke(Program.MainWindow, RefreshRechecks);
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var drTaskCreateAction = sender as DrTaskCreateAction;
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if (drTaskCreateAction != null && drTaskCreateAction.Succeeded)
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{
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if (NewDrTaskIntroduced != null)
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NewDrTaskIntroduced(drTaskCreateAction.Result);
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return;
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}
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var srIntroduceAction = sender as SrIntroduceAction;
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if (srIntroduceAction != null && srIntroduceAction.Succeeded)
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{
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if (SrIntroduced != null)
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SrIntroduced(new XenRef<SR>(srIntroduceAction.Result));
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}
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}
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private void buttonReCheckProblems_Click(object sender, EventArgs e)
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{
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RefreshRechecks();
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}
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private void buttonResolveAll_Click(object sender, EventArgs e)
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{
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Dictionary<AsyncAction, AsyncAction> actions = new Dictionary<AsyncAction, AsyncAction>();
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foreach (DataGridViewRow row in dataGridView1.Rows)
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{
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PreCheckItemRow preCheckRow = row as PreCheckItemRow;
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if (preCheckRow != null && preCheckRow.Problem != null)
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{
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bool cancelled;
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AsyncAction action = preCheckRow.Problem.GetSolutionAction(out cancelled);
|
|
if (action != null)
|
|
{
|
|
actions.Add(action, preCheckRow.Problem.CreateUnwindChangesAction());
|
|
}
|
|
}
|
|
}
|
|
foreach (var asyncAction in actions.Keys)
|
|
{
|
|
using (var progressDialog = new ActionProgressDialog(asyncAction, ProgressBarStyle.Blocks))
|
|
progressDialog.ShowDialog(this);
|
|
|
|
if (asyncAction.Succeeded && actions[asyncAction] != null)
|
|
RevertActions.Add(actions[asyncAction]);
|
|
Program.Invoke(Program.MainWindow, RefreshRechecks);
|
|
}
|
|
Program.Invoke(Program.MainWindow, RefreshRechecks);
|
|
}
|
|
|
|
private void checkBoxViewPrecheckFailuresOnly_CheckedChanged(object sender, EventArgs e)
|
|
{
|
|
//RefreshRechecks();
|
|
foreach (DataGridViewRow row in dataGridView1.Rows)
|
|
{
|
|
var preCheckRow = row as PreCheckItemRow;
|
|
if (preCheckRow != null && preCheckRow.IsProblem)
|
|
preCheckRow.Visible = true;
|
|
else
|
|
row.Visible = !checkBoxViewPrecheckFailuresOnly.Checked;
|
|
}
|
|
}
|
|
|
|
private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
|
|
{
|
|
PreCheckItemRow preChecRow = dataGridView1.Rows[e.RowIndex] as PreCheckItemRow;
|
|
if (preChecRow != null && e.ColumnIndex == 2)
|
|
{
|
|
ExecuteSolution(preChecRow);
|
|
return;
|
|
}
|
|
}
|
|
|
|
#region PreCheckGridRow
|
|
private abstract class PreCheckGridRow : DataGridViewRow
|
|
{
|
|
protected DataGridViewImageCell _iconCell = new DataGridViewImageCell();
|
|
protected DataGridViewTextBoxCell _descriptionCell = new DataGridViewTextBoxCell();
|
|
protected DataGridViewCell _solutionCell = new DataGridViewLinkCell();
|
|
|
|
protected PreCheckGridRow()
|
|
{
|
|
Cells.Add(_iconCell);
|
|
Cells.Add(_descriptionCell);
|
|
Cells.Add(_solutionCell);
|
|
}
|
|
}
|
|
|
|
private class PreCheckHeaderRow : PreCheckGridRow
|
|
{
|
|
public PreCheckHeaderRow(string text)
|
|
{
|
|
_iconCell.Value = new Bitmap(1, 1);
|
|
_descriptionCell.Value = text;
|
|
_descriptionCell.Style.Font = new Font(Program.DefaultFont, FontStyle.Bold);
|
|
}
|
|
}
|
|
|
|
private class PreCheckItemRow : PreCheckGridRow
|
|
{
|
|
private Problem _problem = null;
|
|
private Check _check = null;
|
|
public PreCheckItemRow(Problem problem)
|
|
{
|
|
_problem = problem;
|
|
_check = problem.Check;
|
|
UpdateRowFields();
|
|
}
|
|
|
|
public PreCheckItemRow(Check check)
|
|
{
|
|
_check = check;
|
|
UpdateRowFields();
|
|
}
|
|
|
|
private void UpdateRowFields()
|
|
{
|
|
_iconCell.Value = Problem == null
|
|
? Images.GetImage16For(Icons.Ok)
|
|
: Problem.Image;
|
|
|
|
if (Problem != null)
|
|
_descriptionCell.Value = String.Format(Messages.DR_WIZARD_PRECHECKPAGE_PROBLEM, _check.Description, Problem.Description);
|
|
else if (_check != null)
|
|
{
|
|
_descriptionCell.Value = String.Format(Messages.DR_WIZARD_PRECHECKPAGE_OK, _check.Description);
|
|
}
|
|
_solutionCell.Value = Problem == null ? string.Empty : Problem.HelpMessage;
|
|
}
|
|
|
|
public Problem Problem
|
|
{
|
|
get
|
|
{
|
|
return _problem;
|
|
}
|
|
}
|
|
|
|
public string Description
|
|
{
|
|
get
|
|
{
|
|
return _descriptionCell.Value as string;
|
|
}
|
|
}
|
|
|
|
public bool IsProblem
|
|
{
|
|
get { return _problem != null && !(_problem is Warning); }
|
|
}
|
|
|
|
public bool IsWarning
|
|
{
|
|
get { return _problem != null && _problem is Warning; }
|
|
}
|
|
|
|
public override bool Equals(object obj)
|
|
{
|
|
PreCheckItemRow other = obj as PreCheckItemRow;
|
|
if (other != null && other.Problem != null && _problem != null)
|
|
return _problem.CompareTo(other.Problem) == 0;
|
|
return false;
|
|
}
|
|
|
|
public override int GetHashCode()
|
|
{
|
|
return (_problem != null ? _problem.GetHashCode() : 0);
|
|
}
|
|
}
|
|
#endregion
|
|
}
|
|
|
|
}
|
|
|