xenadmin/XenAdmin/Wizards/PatchingWizard/PatchingWizard_PrecheckPage.cs
Gabor Apati-Nagy e28edcc41b CA-136211: Show link to the relevant Knowledge Base article that describes StorageLink pre-check error
-Showing link to CTX page if StorageLink problem was found at pre-check  (in RPU Wizard)
-Enable the Resolve All button on the pre-check page only when there is at least one problem found and all the problems have solution/fix - minor refactoring

Signed-off-by: Gabor Apati-Nagy <gabor.apati-nagy@citrix.com>
2014-09-26 15:48:14 +01:00

626 lines
24 KiB
C#

/* Copyright (c) Citrix Systems Inc.
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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Linq;
using System.Threading;
using System.Windows.Forms;
using XenAdmin.Actions;
using XenAdmin.Controls;
using XenAdmin.Core;
using XenAdmin.Diagnostics.Checks;
using XenAdmin.Diagnostics.Problems;
using XenAdmin.Diagnostics.Problems.HostProblem;
using XenAdmin.Dialogs;
using XenAdmin.Properties;
using XenAPI;
using XenAdmin.Diagnostics.Problems.VMProblem;
using System.Linq;
namespace XenAdmin.Wizards.PatchingWizard
{
public partial class PatchingWizard_PrecheckPage : XenTabPage
{
private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
private BackgroundWorker _worker = null;
public List<Host> SelectedServers = new List<Host>();
public List<Problem> ProblemsResolvedPreCheck = new List<Problem>();
protected List<Pool> SelectedPools
{
get
{
return SelectedServers.Select(host => Helpers.GetPool(host.Connection)).Where(pool => pool != null).Distinct().ToList();
}
}
public PatchingWizard_PrecheckPage()
{
InitializeComponent();
dataGridView1.BackgroundColor = dataGridView1.DefaultCellStyle.BackColor;
checkBoxViewPrecheckFailuresOnly.Checked = true;
}
public override string PageTitle
{
get
{
return Messages.PATCHINGWIZARD_PRECHECKPAGE_TITLE;
}
}
public override string Text
{
get
{
return Messages.PATCHINGWIZARD_PRECHECKPAGE_TEXT;
}
}
public override string HelpID
{
get { return "UpdatePrechecks"; }
}
public override bool EnablePrevious()
{
return _worker != null && !_worker.IsBusy;
}
void Connection_ConnectionStateChanged(object sender, EventArgs e)
{
Program.Invoke(Program.MainWindow, RefreshRechecks);
}
private void RegisterEventHandlers()
{
foreach (Host selectedServer in SelectedServers)
{
selectedServer.Connection.ConnectionStateChanged += Connection_ConnectionStateChanged;
}
}
private void DeregisterEventHandlers()
{
foreach (Host selectedServer in SelectedServers)
{
selectedServer.Connection.ConnectionStateChanged -= Connection_ConnectionStateChanged;
}
}
public override void PageLoaded(PageLoadedDirection direction)
{
base.PageLoaded(direction);
try
{
RegisterEventHandlers();
if (direction == PageLoadedDirection.Back)
return;
labelPrechecksFirstLine.Text = string.Format(Messages.PATCHINGWIZARD_PRECHECKPAGE_FIRSTLINE, Patch.Name);
RefreshRechecks();
}
catch (Exception e)
{
log.Error(e, e);
throw;//better throw an exception rather than closing the wizard suddenly and silently
}
}
protected void RefreshRechecks()
{
buttonResolveAll.Enabled = buttonReCheckProblems.Enabled = false;
_worker = null;
_worker = new BackgroundWorker();
_worker.DoWork += new DoWorkEventHandler(worker_DoWork);
_worker.WorkerReportsProgress = true;
_worker.WorkerSupportsCancellation = true;
_worker.ProgressChanged += new ProgressChangedEventHandler(worker_ProgressChanged);
_worker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(_worker_RunWorkerCompleted);
_worker.RunWorkerAsync(Patch);
}
private void _worker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
if (!e.Cancelled)
OnPageUpdated();
progressBar1.Value = 100;
bool showResolveAllButton = false;
foreach (PreCheckGridRow row in dataGridView1.Rows)
{
PreCheckHostRow hostRow = row as PreCheckHostRow;
//CA-65508: if the problem cannot be solved immediately there's no point in enabling the Resolve All button
//gabor: I have changed the code below to enable the Resolve All button only if there is at least one problem and all the problems have solution/fix
if (hostRow != null && hostRow.IsProblem)
{
if (!hostRow.IsFixable)
{
showResolveAllButton = false;
break;
}
else
{
showResolveAllButton = true;
}
}
}
buttonResolveAll.Enabled = showResolveAllButton;
buttonReCheckProblems.Enabled = true;
}
private void AddRowToGridView(DataGridViewRow row)
{
lock (_update_grid_lock)
{
dataGridView1.Rows.Add(row);
}
}
private void worker_ProgressChanged(object sender, ProgressChangedEventArgs e)
{
try
{
PreCheckHostRow rowHost = e.UserState as PreCheckHostRow;
if (rowHost != null)
{
if (checkBoxViewPrecheckFailuresOnly.Checked && rowHost.Problem != null || !checkBoxViewPrecheckFailuresOnly.Checked)
AddRowToGridView(rowHost);
}
else
{
var row = e.UserState as DataGridViewRow;
if (row != null && !dataGridView1.Rows.Contains(row))
{
AddRowToGridView(row);
}
}
int step = (int)((1.0 / ((float)_numberChecks)) * e.ProgressPercentage);
progressBar1.Value += (step + progressBar1.Value) > 100 ? 0 : step;
}
catch (Exception) { }
}
private PreCheckHostRow ExecuteCheck(Check check)
{
Problem problem = check.RunCheck();
if (problem != null)
{
if (problem is HostNotLive)
{
// this host is no longer live -> remove all previous problems regarding this host
Problem curProblem = problem;
ProblemsResolvedPreCheck.RemoveAll(p => p.Check.Host == curProblem.Check.Host);
}
if (ProblemsResolvedPreCheck.Contains(problem))
{
Problem curProblem = problem;
problem = ProblemsResolvedPreCheck.Find(p => p.Equals(curProblem));
}
else
ProblemsResolvedPreCheck.Add(problem);
return new PreCheckHostRow(problem);
}
return new PreCheckHostRow(check);
}
private int _numberChecks = 0;
private readonly object _lock = new object();
private readonly object _update_grid_lock = new object();
private void worker_DoWork(object sender, DoWorkEventArgs e)
{
lock (_lock)
{
Program.Invoke(this, () =>
{
dataGridView1.Rows.Clear();
progressBar1.Value = 0;
});
Pool_patch patch = e.Argument as Pool_patch;
List<KeyValuePair<string, List<Check>>> checks = GenerateChecks(patch);
_numberChecks = checks.Count;
for (int i = 0; i < checks.Count; i++)
{
if (_worker.CancellationPending)
{
e.Cancel = true;
return;
}
List<Check> checkGroup = checks[i].Value;
PreCheckHeaderRow headerRow =
new PreCheckHeaderRow(string.Format(Messages.PATCHING_WIZARD_PRECHECK_STATUS, checks[i].Key));
_worker.ReportProgress(5, headerRow);
PreCheckResult precheckResult = PreCheckResult.OK;
for (int j = 0; j < checkGroup.Count; j++)
{
if (_worker.CancellationPending)
{
e.Cancel = true;
return;
}
Check check = checkGroup[j];
PreCheckHostRow row = ExecuteCheck(check);
if (precheckResult != PreCheckResult.Failed && row.Problem != null)
precheckResult = row.IsProblem ? PreCheckResult.Failed : PreCheckResult.Warning;
_worker.ReportProgress(PercentageSelectedServers(j + 1), row);
}
lock (_update_grid_lock)
{
headerRow.UpdateDescription(precheckResult);
}
}
}
}
protected virtual List<KeyValuePair<string, List<Check>>> GenerateChecks(Pool_patch patch)
{
List<KeyValuePair<string, List<Check>>> checks = new List<KeyValuePair<string, List<Check>>>();
//HostLivenessCheck checks
checks.Add(new KeyValuePair<string, List<Check>>(Messages.CHECKING_HOST_LIVENESS_STATUS, new List<Check>()));
List<Check> checkGroup = checks[checks.Count - 1].Value;
foreach (Host host in SelectedServers)
{
checkGroup.Add(new HostLivenessCheck(host));
}
//HA checks
checks.Add(new KeyValuePair<string, List<Check>>(Messages.CHECKING_HA_STATUS, new List<Check>()));
checkGroup = checks[checks.Count - 1].Value;
foreach (Host host in SelectedServers)
{
if (Helpers.HostIsMaster(host))
checkGroup.Add(new HAOffCheck(host));
}
//Checking can evacuate host
//CA-97061 - evacuate host -> suspended VMs. This is only needed for restartHost
if (patch != null && patch.after_apply_guidance.Contains(after_apply_guidance.restartHost))
{
checks.Add(new KeyValuePair<string, List<Check>>(Messages.CHECKING_CANEVACUATE_STATUS, new List<Check>()));
checkGroup = checks[checks.Count - 1].Value;
foreach (Host host in SelectedServers)
{
checkGroup.Add(new AssertCanEvacuateCheck(host));
}
}
//PBDsPluggedCheck
checks.Add(new KeyValuePair<string, List<Check>>(Messages.CHECKING_STORAGE_CONNECTIONS_STATUS, new List<Check>()));
checkGroup = checks[checks.Count - 1].Value;
foreach (Host host in SelectedServers)
{
checkGroup.Add(new PBDsPluggedCheck(host));
}
//Checking other things
checks.Add(new KeyValuePair<string, List<Check>>(Messages.CHECKING_SERVER_SIDE_STATUS, new List<Check>()));
checkGroup = checks[checks.Count - 1].Value;
foreach (Host host in SelectedServers)
{
List<Pool_patch> poolPatches = new List<Pool_patch>(host.Connection.Cache.Pool_patches);
Pool_patch poolPatchFromHost = poolPatches.Find(otherPatch => otherPatch.uuid == patch.uuid);
checkGroup.Add(new PatchPrecheckCheck(host, poolPatchFromHost));
}
return checks;
}
[DefaultValue(true)]
protected bool ManualUpgrade { set; get; }
private int PercentageSelectedServers(int i)
{
return (int)(((float)i / (float)(SelectedServers.Count)) * 100);
}
public override void PageCancelled()
{
DeregisterEventHandlers();
if (_worker != null)
_worker.CancelAsync();
}
public override void PageLeave(PageLoadedDirection direction, ref bool cancel)
{
DeregisterEventHandlers();
if (direction == PageLoadedDirection.Back && _worker != null)
{
_worker.CancelAsync();
_worker = null;
}
base.PageLeave(direction, ref cancel);
}
public override bool EnableNext()
{
bool problemsFound = false;
foreach (DataGridViewRow row in dataGridView1.Rows)
{
PreCheckHostRow preCheckHostRow = row as PreCheckHostRow;
if (preCheckHostRow != null && preCheckHostRow.IsProblem)
{
problemsFound = true;
break;
}
}
bool result = _worker != null && !_worker.IsBusy && !problemsFound;
panelErrorsFound.Visible = problemsFound;
return result;
}
public UpdateType SelectedUpdateType { private get; set; }
public Pool_patch Patch { private get; set; }
public List<Pool_patch> NewUploadedPatches { private get; set; }
internal enum PreCheckResult { OK, Warning, Failed }
private abstract class PreCheckGridRow : DataGridViewRow
{
protected DataGridViewImageCell _iconCell = new DataGridViewImageCell();
protected DataGridViewTextBoxCell _descriptionCell = new DataGridViewTextBoxCell();
protected DataGridViewCell _solutionCell = null;
protected PreCheckGridRow(DataGridViewCell solutionCell)
{
_solutionCell = solutionCell;
Cells.Add(_iconCell);
Cells.Add(_descriptionCell);
Cells.Add(_solutionCell);
}
}
private class PreCheckHeaderRow : PreCheckGridRow
{
private string description;
public PreCheckHeaderRow(string text)
: base(new DataGridViewTextBoxCell())
{
_iconCell.Value = new Bitmap(1, 1);
description = text;
_descriptionCell.Value = text;
_descriptionCell.Style.Font = new Font(Program.DefaultFont, FontStyle.Bold);
}
public void UpdateDescription(PreCheckResult precheckResult)
{
string result = precheckResult == PreCheckResult.OK
? Messages.OK
: precheckResult == PreCheckResult.Warning ? Messages.WARNING : Messages.FAILED;
_descriptionCell.Value = string.Format("{0} {1}", description, result);
}
}
private class PreCheckHostRow : PreCheckGridRow
{
private Problem _problem = null;
private Check _check = null;
public PreCheckHostRow(Problem problem)
: base(new DataGridViewTextBoxCell())
{
_problem = problem;
_check = problem.Check;
UpdateRowFields();
}
public PreCheckHostRow(Check check)
: base(new DataGridViewTextBoxCell())
{
_check = check;
UpdateRowFields();
}
public bool IsFixable
{
get
{
return Problem != null && Problem.IsFixable && !string.IsNullOrEmpty(this.Solution);
}
}
private void UpdateRowFields()
{
_iconCell.Value = Problem == null
? Resources._000_Tick_h32bit_16
: Problem is Warning ? Resources._000_Alert2_h32bit_16 : Resources._000_Abort_h32bit_16;
string description = string.Empty;
if (Problem != null)
description = Problem.Description;
else if (_check != null)
description = String.Format(Messages.PATCHING_WIZARD_HOST_CHECK_OK, _check.Host.Name, _check.Description);
if (description != string.Empty)
_descriptionCell.Value = String.Format(Messages.PATCHING_WIZARD_DESC_CELL_INDENT, null, description);
_solutionCell.Value = Problem == null ? string.Empty : Problem.HelpMessage;
if (Problem is WarningWithInformationUrl)
_solutionCell.Value = (Problem as WarningWithInformationUrl).LinkText;
if (Problem is ProblemWithInformationUrl)
_solutionCell.Value = (Problem as ProblemWithInformationUrl).LinkText;
_solutionCell.Style.Font = new Font(Program.DefaultFont, FontStyle.Underline);
_solutionCell.Style.ForeColor = Color.Blue;
}
public Problem Problem
{
get
{
return _problem;
}
}
public string Solution
{
get { return (string)_solutionCell.Value; }
}
public bool IsProblem
{
get { return _problem != null && !(_problem is Warning); }
}
public override bool Equals(object obj)
{
PreCheckHostRow other = obj as PreCheckHostRow;
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);
}
}
private ActionProgressDialog _progressDialog = null;
private void dataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
{
PreCheckHostRow preCheckHostRow = dataGridView1.Rows[e.RowIndex] as PreCheckHostRow;
if (preCheckHostRow != null && e.ColumnIndex == 2)
{
ExecuteSolution(preCheckHostRow);
}
}
private void dataGridView1_KeyPress(object sender, KeyPressEventArgs e)
{
if (e.KeyChar == (char)Keys.Enter && dataGridView1.CurrentCell != null)
{
PreCheckHostRow preCheckHostRow = dataGridView1.CurrentCell.OwningRow as PreCheckHostRow;
int columnIndex = dataGridView1.CurrentCell.ColumnIndex;
if (preCheckHostRow != null && columnIndex == 2)
ExecuteSolution(preCheckHostRow);
}
}
private void ExecuteSolution(PreCheckHostRow preCheckHostRow)
{
bool cancelled;
AsyncAction action = preCheckHostRow.Problem.SolveImmediately(out cancelled);
if (action != null)
{
action.Completed += action_Completed;
_progressDialog = new ActionProgressDialog(action, ProgressBarStyle.Blocks);
_progressDialog.ShowDialog(this);
}
else
{
if (preCheckHostRow.Problem is WarningWithInformationUrl)
(preCheckHostRow.Problem as WarningWithInformationUrl).LaunchUrlInBrowser();
else if (preCheckHostRow.Problem is ProblemWithInformationUrl)
(preCheckHostRow.Problem as ProblemWithInformationUrl).LaunchUrlInBrowser();
else if (!cancelled)
new ThreeButtonDialog(new ThreeButtonDialog.Details(SystemIcons.Information,
string.Format(Messages.PATCHING_WIZARD_SOLVE_MANUALLY, preCheckHostRow.Problem.Description).Replace("\\n", "\n"),
Messages.PATCHINGWIZARD_PRECHECKPAGE_TEXT)).ShowDialog(this);
}
}
private void action_Completed(ActionBase sender)
{
Thread.Sleep(1000);
Program.Invoke(Program.MainWindow, RefreshRechecks);
}
private void buttonReCheckProblems_Click(object sender, EventArgs e)
{
RefreshRechecks();
}
private void buttonResolveAll_Click(object sender, EventArgs e)
{
List<AsyncAction> actions = new List<AsyncAction>();
foreach (DataGridViewRow row in dataGridView1.Rows)
{
PreCheckHostRow preCheckHostRow = row as PreCheckHostRow;
if (preCheckHostRow != null && preCheckHostRow.Problem != null)
{
bool cancelled;
AsyncAction action = preCheckHostRow.Problem.SolveImmediately(out cancelled);
if (action != null)
actions.Add(action);
}
}
foreach (var asyncAction in actions)
{
_progressDialog = new ActionProgressDialog(asyncAction, ProgressBarStyle.Blocks);
_progressDialog.ShowDialog(this);
Program.Invoke(Program.MainWindow, RefreshRechecks);
}
Program.Invoke(Program.MainWindow, RefreshRechecks);
}
private void checkBox1_CheckedChanged(object sender, EventArgs e)
{
RefreshRechecks();
}
private void dataGridView1_CellMouseMove(object sender, DataGridViewCellMouseEventArgs e)
{
PreCheckHostRow preCheckHostRow = dataGridView1.Rows[e.RowIndex] as PreCheckHostRow;
if (preCheckHostRow != null && e.ColumnIndex == 2 && !string.IsNullOrEmpty(preCheckHostRow.Solution))
{
Cursor = Cursors.Hand;
}
else
Cursor = Cursors.Arrow;
}
}
}