xenadmin/XenAdmin/Controls/Wlb/WlbOptimizePool.cs
Konstantina Chremmou 29cdf221bc Cleared some level 4 warnings.
Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
2018-03-22 15:07:32 +00:00

934 lines
38 KiB
C#

/* Copyright (c) Citrix Systems, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms,
* with or without modification, are permitted provided
* that the following conditions are met:
*
* * Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Threading;
using System.Windows.Forms;
using XenAdmin;
using XenAdmin.Controls;
using XenAdmin.Controls.CustomGridView;
using XenAdmin.Core;
using XenAdmin.Wlb;
using XenAdmin.Network;
using XenAdmin.XenSearch;
using XenAPI;
using XenAdmin.Actions;
using XenAdmin.Actions.Wlb;
using XenAdmin.Dialogs;
using System.Drawing.Drawing2D;
using XenAdmin.Commands;
namespace XenAdmin.Controls.Wlb
{
public partial class WlbOptimizePool : UserControl
{
private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
private readonly ListViewColumnSorter columnSorter = new ListViewColumnSorter();
private IXenObject _xenObject;
private Pool _pool;
private Dictionary<VM, WlbOptimizationRecommendation> _vmOptList = new Dictionary<VM, WlbOptimizationRecommendation>();
private Dictionary<XenRef<VM>, string[]> _recommendations = new Dictionary<XenRef<VM>, string[]>();
private string _optId = String.Empty;
private bool _autoOptEnabled = false;
private bool _powerManagementEnabled = false;
// TODO: change to proper report file name
private readonly string ReportFile = "pool_optimization_history";
// All used in the listview.
private readonly Font OperationTextFont;
private readonly Color OperationTextColor;
private readonly Color ShadedRowColor;
private readonly Color DisabledShadedRowColor;
// Listview minimum column widths
private int[] minimumColumnWidths = { 0, 25, 25, 25 };
/// <summary>
/// Initialize optimize pool listview
/// </summary>
public WlbOptimizePool()
{
InitializeComponent();
Host_CollectionChangedWithInvoke += Program.ProgramInvokeHandler(Host_CollectionChanged);
VM_CollectionChangedWithInvoke=Program.ProgramInvokeHandler(VM_CollectionChanged);
OperationTextFont = new Font(this.Font, FontStyle.Bold);
OperationTextColor = Color.Black;
ShadedRowColor = Color.FromArgb(230, 240, 255);
DisabledShadedRowColor = Color.FromArgb(224, 222, 205);
optimizePoolListView.SmallImageList = Images.ImageList16;
optimizePoolListView.ListViewItemSorter = columnSorter;
//linkLabelReportHistory.Visible = false;
recommendationUpdateTimer = new System.Threading.Timer(TimerCallback, null, 0, 0);
StartTimer();
}
#region public methods
/// <summary>
/// Set XenModelOpject and populate optimize pool listview properly
/// </summary>
public IXenObject XenObject
{
set
{
Program.AssertOnEventThread();
if (_xenObject != null)
{
if (_xenObject is Pool)
{
this._pool.PropertyChanged -= Pool_PropertyChanged;
_pool.Connection.Cache.DeregisterCollectionChanged<XenAPI.Host>(Host_CollectionChangedWithInvoke);
foreach (Host host in _pool.Connection.Cache.Hosts)
{
host.PropertyChanged -= Host_PropertyChanged;
host.Connection.Cache.DeregisterCollectionChanged<VM>(VM_CollectionChangedWithInvoke);
foreach (VM vm in host.Connection.Cache.VMs)
{
vm.PropertyChanged -= VM_PropertyChanged;
}
}
}
}
_xenObject = value;
_pool = null;
if (_xenObject != null)
{
if (_xenObject is Pool)
{
_pool = (Pool)_xenObject;
this._pool.PropertyChanged += Pool_PropertyChanged;
_pool.Connection.Cache.RegisterCollectionChanged<XenAPI.Host>(Host_CollectionChangedWithInvoke);
foreach (Host host in _pool.Connection.Cache.Hosts)
{
host.PropertyChanged -= Host_PropertyChanged;
host.PropertyChanged += Host_PropertyChanged;
host.Connection.Cache.RegisterCollectionChanged<VM>(VM_CollectionChangedWithInvoke);
foreach (VM vm in host.Connection.Cache.VMs)
{
vm.PropertyChanged -= VM_PropertyChanged;
vm.PropertyChanged += VM_PropertyChanged;
}
}
}
}
BuildRecList();
}
}
public void SetOptControlProperties(bool autoOptEnabled, bool powerManagementEnabled)
{
_autoOptEnabled = autoOptEnabled;
_powerManagementEnabled = powerManagementEnabled;
this.SuspendLayout();
if (WlbServerState.GetState(_pool) == WlbServerState.ServerState.Enabled)
{
//linkLabelReportHistory.Visible = true;
// Update listView VM/Host header text
this.optimizePoolListView.BeginUpdate();
this.columnHeader1.Text = Messages.WLB_OPT_HEADER_VMHOST;
this.optimizePoolListView.EndUpdate();
}
else
{
//linkLabelReportHistory.Visible = false;
// Update listView VM/Host header text
this.optimizePoolListView.BeginUpdate();
this.columnHeader1.Text = Messages.WLB_OPT_HEADER_VM;
this.optimizePoolListView.EndUpdate();
}
this.ResumeLayout();
}
/// <summary>
/// Called from wlb page, used to disable/enable optimize pool controls properly when WLB is Enabled/Disabled
/// </summary>
/// <param name="disable">disable controls if it's true, else enable controls</param>
public void WLBOptDisable(bool disable)
{
optimizePoolListView.BeginUpdate();
if (disable)
{
this.statusLabel.Visible = false;
this.optimizePoolListView.Items.Clear();
this.optimizePoolListView.Visible = true;
this.optimizePoolListView.Enabled = false;
this.applyButton.Visible = true;
this.applyButton.Enabled = false;
}
else
{
if (!this.optimizePoolListView.Visible)
{
this.statusLabel.Visible = true;
this.optimizePoolListView.Items.Clear();
this.optimizePoolListView.Visible = true;
this.applyButton.Visible = true;
this.applyButton.Enabled = false;
}
else
{
this.optimizePoolListView.Enabled = true;
if (this.optimizePoolListView.Items.Count > 0)
this.applyButton.Enabled = true;
else
this.statusLabel.Visible = true;
}
}
optimizePoolListView.EndUpdate();
}
#endregion
// TODO: remove unused event handler
#region Event Handlers
// draw the gradient line, override OnPaint in System.Drawing.Drawing2D
/*
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
using (Brush brush = new LinearGradientBrush(Point.Empty, new Point(this.Width / 2, 0), XenAdmin.TabPages.BaseTabPage.HeaderBorderColor, BackColor))
{
e.Graphics.FillRectangle(brush, 0, 20, this.Width / 2, 1);
}
}
*/
/// <summary>
/// Triggered when pool wlb enabled/disabled and optimize pool
/// </summary>
/// <param name="sender">XenObject&lt;Pool&gt;</param>
/// <param name="e">PropertyChangedEventArgs</param>
private void Pool_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
Program.Invoke(this, delegate
{
if (_xenObject != null && Program.MainWindow.TheTabControl.SelectedTab == Program.MainWindow.TabPageWLB)
{
if (e.PropertyName == "wlb_enabled")
{
// enable/disble controls and display message properly
WLBOptDisable(!Helpers.WlbEnabled(((Pool)sender).Connection));
}
if (e.PropertyName == "other_config")
{
// check whether it's optimize pool event
if (((Pool)sender).other_config.ContainsKey(WlbOptimizationRecommendation.OPTIMIZINGPOOL))
{
BuildRecList();
}
}
}
});
}
/// <summary>
/// Triggered when hosts leave/join pool
/// </summary>
/// <param name="sender">object</param>
/// <param name="e">CollectionChangeEventArgs</param>
private void Host_CollectionChanged(object sender, CollectionChangeEventArgs e)
{
switch (e.Action)
{
case CollectionChangeAction.Add:
((Host)e.Element).PropertyChanged -= Host_PropertyChanged;
((Host)e.Element).PropertyChanged += Host_PropertyChanged;
break;
case CollectionChangeAction.Remove:
((Host)e.Element).PropertyChanged -= Host_PropertyChanged;
break;
}
// It's not necessary to call BuildRecList here
// because Remove/add Hosts also triger VM_CollectionChange,
}
/// <summary>
/// respond to host name change and vms leaving/joining the host.
/// </summary>
/// <param name="sender">XenObject&lt;Host&gt;</param>
/// <param name="e">PropertyChangedEventArgs</param>
private void Host_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
if (_pool != null &&
Helpers.WlbEnabled(_pool.Connection) &&
applyButton.Enabled &&
IsHostOnListView(((Host)sender), false))
{
if (e.PropertyName == "name_label")
{
optimizePoolListView.BeginUpdate();
foreach (ListViewItem item in optimizePoolListView.Items)
{
UpdateRow(item);
}
optimizePoolListView.EndUpdate();
}
if ((e.PropertyName == "resident_VMs" && IsHostOnListView(((Host)sender), true))
|| (e.PropertyName == "enabled" && !((Host)sender).enabled))
{
Program.Invoke(this, delegate()
{
BuildRecList();
});
}
}
}
/// <summary>
/// Check whether Host property change relates to optimize pool list view. Will return true if the host is on the list view.
/// Must be called on the event thread.
/// </summary>
/// <param name="host">XenObject&lt;Host&gt;</param>
/// <param name="checkVMHost">Whether to check VM host</param>
/// <returns>True if host is on the optimize pool list view, else return false</returns>
private bool IsHostOnListView(Host host, bool checkVMHost)
{
Program.AssertOnEventThread();
bool onList = false;
// should find if any vms that not on host but in listview
foreach (ListViewItem item in optimizePoolListView.Items)
{
Host fromHost = ((WlbOptimizationRecommendation)item.Tag).fromHost;
Host toHost = ((WlbOptimizationRecommendation)item.Tag).toHost;
VM vm = ((WlbOptimizationRecommendation)item.Tag).vm;
// whether check vm's host changes
if (checkVMHost)
{
// update optimize pool listview if vm from host is to move to host
if (vm.Connection.Resolve(vm.resident_on) == toHost)
{
onList = true;
}
}
// whether host is related to optimize pool listview
else if ((fromHost != null && fromHost == host)
|| (toHost != null && toHost== host))
{
onList = true;
}
}
return onList;
}
/// <summary>
/// Triggered when vm collection is changed, pool is connected and optimize pool listview is visiable.
/// </summary>
/// <param name="sender">object</param>
/// <param name="e">CollectionChangeEventArgs</param>
private void VM_CollectionChanged(object sender, CollectionChangeEventArgs e)
{
Program.AssertOnEventThread();
switch (e.Action)
{
case CollectionChangeAction.Add:
((VM)e.Element).PropertyChanged -= VM_PropertyChanged;
((VM)e.Element).PropertyChanged += VM_PropertyChanged;
break;
case CollectionChangeAction.Remove:
((VM)e.Element).PropertyChanged -= VM_PropertyChanged;
break;
}
// only continue if pool is connect and pool is not null
if (_xenObject == null || !_xenObject.Connection.IsConnected)
return;
// only update recommendation listview if applyButton is enabled and a vm has been removed from collection
if (applyButton.Enabled && e.Action == CollectionChangeAction.Remove)
BuildRecList();
}
/// <summary>
/// Triggered when vm state is changed
/// </summary>
/// <param name="sender">XenObject&lt;VM&gt;</param>
/// <param name="e">PropertyChangedEventArgs</param>
private void VM_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
Program.Invoke(Program.MainWindow, () =>
{
// Find row for VM
ListViewItem item = FindItemFromVM((VM) sender);
if (item != null)
{
optimizePoolListView.BeginUpdate();
try
{
UpdateRow(item);
}
finally
{
optimizePoolListView.EndUpdate();
}
}
});
}
/// <summary>
/// Finds the ListViewItem for the given VM. Will return null if no corresponding item could be found.
/// Must be called on the event thread.
/// </summary>
/// <param name="vm">XenObject&lt;VM&gt;</param>
/// <returns>Return the listview item when found, null if nothing is found</returns>
private ListViewItem FindItemFromVM(VM vm)
{
Program.AssertOnEventThread();
foreach (ListViewItem item in optimizePoolListView.Items)
{
if (((WlbOptimizationRecommendation)item.Tag).vm == vm)
{
return item;
}
}
return null;
}
/// <summary>
/// Apply optimization to a pool
/// </summary>
/// <param name="sender">object</param>
/// <param name="e">EventArgs</param>
private void ButtonApply_Click(object sender, EventArgs e)
{
if (this._pool == null)
return;
applyButton.Enabled = false;
action = HelpersGUI.FindActiveOptAction(_xenObject.Connection);
if ((action != null && action.GetType() != typeof(WlbOptimizePoolAction)) || action == null)
{
new WlbOptimizePoolAction(_pool, _vmOptList, _optId).RunAsync();
Program.MainWindow.UpdateToolbars();
}
}
private void linkLabelReportHistory_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
new ViewWorkloadReportsCommand(Program.MainWindow, _pool, ReportFile, true).Execute();
}
private static void UpdateRow(ListViewItem row)
{
try // In try block to fix CA-40197
{
Program.AssertOnEventThread();
WlbOptimizationRecommendation optVMmSetting = (WlbOptimizationRecommendation)row.Tag;
// update icon and vm/host name
//row.ImageIndex = (int)Images.GetIconFor(optVMmSetting.vm);
//row.SubItems[0].Text = optVMmSetting.vm.name_label;
//row.SubItems[1].Text = optVMmSetting.fromHost.name_label;
//row.SubItems[2].Text = optVMmSetting.toHost.name_label;
if (String.IsNullOrEmpty(optVMmSetting.toHost.name_label) || String.IsNullOrEmpty(optVMmSetting.fromHost.name_label))
{
row.ImageIndex = (int)Images.GetIconFor(optVMmSetting.toHost ?? optVMmSetting.fromHost);
row.SubItems[1].Text = Helpers.GetName(optVMmSetting.toHost ?? optVMmSetting.fromHost);
row.SubItems[2].Text = optVMmSetting.toHost != null ? Messages.WLB_OPT_OPERATION_HOST_POWERON : Messages.WLB_OPT_REASON_POWEROFF;
}
else
{
row.ImageIndex = (int)Images.GetIconFor(optVMmSetting.vm);
row.SubItems[1].Text = optVMmSetting.vm.name_label;
row.SubItems[2].Text = String.Format(Messages.WLB_OPT_OPERATION_VM, optVMmSetting.fromHost.name_label, optVMmSetting.toHost.name_label);
}
row.SubItems[3].Text = optVMmSetting.reason;
}
catch(Exception ex)
{
log.Error(ex, ex);
}
}
#endregion
#region Refresh Timer
private System.Threading.Timer recommendationUpdateTimer;
private const int RECOMMENDATION_INITIAL_INTERVAL = 1000 * 5; // 5 seconds interval
// Default to 2 minutes due to Kirkwood recommendation is generated every 2 minutes
private const int RECOMMENDATION_UPDATE_INTERVAL = 1000 * 30; // 30 seconds interval
AsyncAction action = null;
/// <summary>
/// start timer with 5 seconds interval
/// </summary>
private void StartTimer()
{
recommendationUpdateTimer.Change(RECOMMENDATION_INITIAL_INTERVAL, 0);
}
/// <summary>
/// Timer call back, used to refresh optimize pool listview.
/// Dispose if program exits, do nothing if wlb tab is not focused
/// </summary>
/// <param name="o">object</param>
private void TimerCallback(object o)
{
if (recommendationUpdateTimer == null)
return;
if (Program.Exiting)
{
recommendationUpdateTimer.Dispose();
return;
}
if (Program.MainWindow != null && Program.MainWindow.WlbPage != null)
{
Program.Invoke(Program.MainWindow, delegate()
{
if (_xenObject != null && Program.MainWindow.TheTabControl.SelectedTab == Program.MainWindow.TabPageWLB
&& _pool != null &&_pool.Connection.IsConnected && _pool.Connection.Session != null)
{
BuildRecList();
}
});
}
recommendationUpdateTimer.Change(RECOMMENDATION_UPDATE_INTERVAL, 0);
}
#endregion
#region load optimizePoolListView properly
/// <summary>
/// Build optimize pool list view properly
/// </summary>
private void BuildRecList()
{
Program.AssertOnEventThread();
if(_xenObject == null)
return;
if (Helpers.WlbEnabled(_xenObject.Connection))
{
try
{
if (_xenObject is Pool)
{
_pool = (Pool)_xenObject;
// get any active WLB action
action = HelpersGUI.FindActiveWLBAction(_xenObject.Connection);
// make sure we are not initializing, starting or stopping WLB
if (action is DisableWLBAction || action is EnableWLBAction || action is InitializeWLBAction)
return;
optimizePoolListView.BeginUpdate();
// check whether optimize pool is running before load optimize pool listview
if ((action != null && action is WlbOptimizePoolAction)
|| (action == null && _pool.other_config.ContainsKey(WlbOptimizationRecommendation.OPTIMIZINGPOOL)
&& _pool.other_config[WlbOptimizationRecommendation.OPTIMIZINGPOOL] == Messages.IN_PROGRESS))
{
//statusLabel.Text = Messages.WLB_OPT_OPTIMIZING;
this.applyButton.Text = Messages.WLB_OPT_OPTIMIZING;
EnableControls(false, false);
}
else if (action == null || (action != null && action.GetType() != typeof(WlbRetrieveRecommendationAction)))
{
this.applyButton.Text = Messages.WLB_OPT_APPLY_RECOMMENDATIONS;
// retrieve recommendations, and load optimize pool listview properly
WlbRetrieveRecommendationAction optAction = new WlbRetrieveRecommendationAction(_pool);
optAction.Completed += this.OptRecRetrieveAction_Completed;
optAction.RunAsync();
}
}
}
catch (Failure f)
{
statusLabel.Text = Messages.WLB_OPT_LOADING_ERROR;
log.Error(f, f);
}
catch (Exception e)
{
statusLabel.Text = Messages.WLB_OPT_LOADING_ERROR;
log.ErrorFormat("There was an error calling retrieve_wlb_recommendations on pool {0}", _pool.name_label);
log.Error(e, e);
}
finally
{
optimizePoolListView.EndUpdate();
}
}
else
{
this.WLBOptDisable(true);
}
}
/// <summary>
/// Retrieve wlb optimize pool recommendation action complete handler.
/// Populate optimize pool listview and enable controls properly.
/// </summary>
protected void OptRecRetrieveAction_Completed(ActionBase sender)
{
AsyncAction action = (AsyncAction)sender;
if (action.IsCompleted)
{
action.Completed -= OptRecRetrieveAction_Completed;
if (action is WlbRetrieveRecommendationAction)
{
WlbRetrieveRecommendationAction thisAction = (WlbRetrieveRecommendationAction)action;
_recommendations = thisAction.WLBOptPoolRecommendations;
if (_recommendations != null && IsGoodRecommendation(_recommendations) && _xenObject.Connection == action.Connection)
{
Program.Invoke(this, delegate()
{
PopulateData(_recommendations);
// In case optimizePoolListView is empty
if (optimizePoolListView.Items.Count == 0)
{
statusLabel.Text = Messages.WLB_OPT_POOL_NO_RECOMMENDATION;
EnableControls(true, false);
}
else
EnableControls(false, true);
});
}
else
{
Program.Invoke(this, delegate()
{
statusLabel.Text = Messages.WLB_OPT_POOL_NO_RECOMMENDATION;
EnableControls(true, false);
});
}
}
}
}
/// <summary>
/// Check if there are recommendations and verify if recommendations are valid and good;
/// return false if no valid recommendations
/// </summary>
/// <param name="recommendations">Optimize pool recommendations</param>
/// <returns>true if recommendations are valid, else return false</returns>
private bool IsGoodRecommendation(Dictionary<XenRef<VM>, string[]> recommendations)
{
bool goodRec = false;
if (recommendations != null)
{
foreach (KeyValuePair<XenRef<VM>, string[]> rec in recommendations)
{
// make sure at least one recommendation is good
if (rec.Value[(int)RecProperties.WLB].Trim().ToLower() == "wlb")
{
// get opt id from new recommendations
_optId = rec.Value[(int)RecProperties.OptId];
// get opt id of the most recent optimized action from pool's other configuration property
string optimizeId = String.Empty;
(Helpers.GetOtherConfig(this._pool)).TryGetValue(WlbOptimizationRecommendation.OPTIMIZINGPOOL, out optimizeId);
// make sure pool's recommendations are not old/just optimized recommendations
if (optimizeId != _optId)
{
goodRec = true;
break;
}
}
}
}
return goodRec;
}
/// <summary>
/// Checks to see if all the wlb recommendations are for PowerOff or PowerOn operations
/// </summary>
/// <param name="recommendations"></param>
/// <returns></returns>
private bool IsPowerOnlyRecommendation(Dictionary<XenRef<VM>, string[]> recommendations)
{
bool powerOnly = true;
if (recommendations != null)
{
foreach (KeyValuePair<XenRef<VM>, string[]> rec in recommendations)
{
if (rec.Value[(int)RecProperties.WLB].Trim().ToLower() == "wlb" &&
!(rec.Value[(int)RecProperties.Reason].Trim().ToLower().StartsWith("power")))
{
powerOnly = false;
}
}
}
return powerOnly;
}
/// <summary>
/// Populate optimize pool listview properly
/// </summary>
/// <param name="recommendations">optimize pool recommendations</param>
private void PopulateData(Dictionary<XenRef<VM>, string[]> recommendations)
{
Program.AssertOnEventThread();
optimizePoolListView.BeginUpdate();
try
{
if (_vmOptList != null)
_vmOptList.Clear();
optimizePoolListView.Items.Clear();
List<ListViewItem> newItems = new List<ListViewItem>();
WlbOptimizationRecommendationCollection sortedRecommendations = new WlbOptimizationRecommendationCollection(_pool, recommendations);
// WLB: recommendation return string format ["WLB"; vm/vm dom0; optId; recID; reason]
foreach (WlbOptimizationRecommendation optVmSetting in sortedRecommendations)
{
_optId = optVmSetting.optId.ToString();
_vmOptList.Add(optVmSetting.vm, optVmSetting);
ListViewItem row = new ListViewItem();
row.Tag = optVmSetting;
newItems.Add(row);
row.SubItems.Add(new ListViewItem.ListViewSubItem());
row.SubItems.Add(new ListViewItem.ListViewSubItem());
row.SubItems.Add(new ListViewItem.ListViewSubItem());
row.SubItems.Add(new ListViewItem.ListViewSubItem());
// Power on/off hosts
if (optVmSetting.toHost == null)
{
row.ImageIndex = (int)Images.GetIconFor(optVmSetting.toHost != null ? optVmSetting.toHost : optVmSetting.fromHost);
row.SubItems[1].Text = Helpers.GetName(optVmSetting.toHost != null ? optVmSetting.toHost : optVmSetting.fromHost);
row.SubItems[2].Text = optVmSetting.powerOperation;
}
else // VMs
{
row.ImageIndex = (int)Images.GetIconFor(optVmSetting.vm);
row.SubItems[1].Text = Helpers.GetName(optVmSetting.vm);
row.SubItems[2].Text = String.Format(Messages.WLB_OPT_OPERATION_VM, Helpers.GetName(optVmSetting.fromHost), Helpers.GetName(optVmSetting.toHost));
}
row.SubItems[3].Text = optVmSetting.reason;
}
optimizePoolListView.Items.AddRange(newItems.ToArray());
}
finally
{
optimizePoolListView.EndUpdate();
}
}
/// <summary>
/// Enable optimize pool controls properly
/// </summary>
private void EnableControls(bool enableLabel, bool enableButton)
{
// Rules for enabling the button:
// Passed RBAC checks, and
// If we are not in automatic mode, or
// ( We are in automatic mode, and
// We are in automated mode but PowerManagement is not enabled, and
// All recommdations are power-related)
if (enableLabel)
{
optimizePoolListView.Items.Clear();
}
optimizePoolListView.Visible = true;
optimizePoolListView.Enabled = PassedRbacChecks();
statusLabel.Visible = enableLabel;
applyButton.Visible = true;
//if ((_autoOptEnabled && _powerManagementEnabled) || !PassedRbacChecks())
if (PassedRbacChecks() &&
(!_autoOptEnabled ||
(_autoOptEnabled && !_powerManagementEnabled && IsPowerOnlyRecommendation(_recommendations))))
{
applyButton.Enabled = enableButton;
}
else
{
applyButton.Enabled = false;
}
}
private RbacMethodList WLB_PERMISSION_CHECKS = new RbacMethodList(
"pool.initialize_wlb",
"pool.set_wlb_enabled",
"pool.send_wlb_configuration"
);
private readonly CollectionChangeEventHandler Host_CollectionChangedWithInvoke;
private readonly CollectionChangeEventHandler VM_CollectionChangedWithInvoke;
private bool PassedRbacChecks()
{
return Role.CanPerform(WLB_PERMISSION_CHECKS, this._pool.Connection);
}
#endregion
#region OptimizePoolListView item drawing event and colum event handlers
/// <summary>
/// Draw default column header
/// </summary>
/// <param name="sender">object</param>
/// <param name="e">DrawListViewColumnHeaderEventArgs</param>
private void OptimizePoolListView_DrawColumnHeader(object sender, DrawListViewColumnHeaderEventArgs e)
{
// Draw default column header
e.DrawDefault = true;
}
/// <summary>
/// Draw items on optimize pool listview properly
/// </summary>
/// <param name="sender">object</param>
/// <param name="e">DrawListViewItemEventArgs</param>
private void OptimizePoolListView_DrawItem(object sender, DrawListViewItemEventArgs e)
{
// Fill the full width of the control, not just to the end of the column headers.
Rectangle r = e.Bounds;
int i = 0;
foreach (ColumnHeader col in optimizePoolListView.Columns)
{
i += col.Width;
}
// Fill from the right of the rightmost item to the end of the control
r.Width = Math.Max(i, optimizePoolListView.ClientSize.Width);
r.X = i;
using (Brush backBrush = new SolidBrush(e.Item.Index % 2 == 1 ? ShadedRowColor : SystemColors.Window))
e.Graphics.FillRectangle(backBrush, r);
}
/// <summary>
/// Draw sub items in optimize pool list view
/// </summary>
/// <param name="sender">object</param>
/// <param name="e">DrawListViewSubItemEventArgs</param>
private void OptimizePoolListView_DrawSubItem(object sender, DrawListViewSubItemEventArgs e)
{
Rectangle rect = e.Bounds;
using (Brush backBrush = new SolidBrush(e.Item.Index % 2 == 1 ? ShadedRowColor : SystemColors.Window))
e.Graphics.FillRectangle(backBrush, rect);
Color fontColor = Color.Black;
if (e.ColumnIndex == 2)
{
TextRenderer.DrawText(e.Graphics, e.Item.SubItems[e.ColumnIndex].Text, OperationTextFont, e.Bounds, OperationTextColor, TextFormatFlags.EndEllipsis);
}
else if (e.ColumnIndex == 3)
{
TextRenderer.DrawText(e.Graphics, e.Item.SubItems[e.ColumnIndex].Text, this.Font, e.Bounds, fontColor, TextFormatFlags.EndEllipsis);
}
else
{
DrawSubItem1(fontColor, e);
}
}
private void DrawSubItem1(Color fontColor, DrawListViewSubItemEventArgs e)
{
Image icon = e.Item.ImageList.Images[e.Item.ImageIndex];
Point p = new Point(e.Bounds.Left, e.Bounds.Top + (e.Bounds.Height - icon.Height) / 2);
// Draw normally
e.Graphics.DrawImageUnscaled(icon, p);
Point p2 = new Point(p.X + icon.Width + 2, p.Y);
Rectangle r = new Rectangle(p2.X, p2.Y, e.Bounds.Right - p2.X, e.Bounds.Height);
TextRenderer.DrawText(e.Graphics, e.Item.SubItems[e.ColumnIndex].Text, this.Font, r, fontColor, TextFormatFlags.EndEllipsis);
}
private void optimizePoolListView_ColumnWidthChanged(object sender, ColumnWidthChangedEventArgs e)
{
//Maintain a minimum column widths
if (minimumColumnWidths.Length>=e.ColumnIndex &&
optimizePoolListView.Columns[e.ColumnIndex].Width < minimumColumnWidths[e.ColumnIndex])
{
optimizePoolListView.Columns[e.ColumnIndex].Width = minimumColumnWidths[e.ColumnIndex];
}
}
#endregion
}
}