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/ * Copyright ( c ) Citrix Systems , Inc .
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* 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.Globalization ;
using System.Linq ;
using System.Text ;
using System.Windows.Forms ;
using System.Text.RegularExpressions ;
using XenAdmin.Core ;
using XenAPI ;
using XenAdmin.Alerts ;
using XenAdmin.Actions ;
using XenAdmin.Controls ;
using System.Diagnostics ;
namespace XenAdmin.SettingsPanels
{
public partial class PerfmonAlertEditPage : UserControl , IEditPage
{
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private static readonly log4net . ILog log = log4net . LogManager . GetLogger ( System . Reflection . MethodBase . GetCurrentMethod ( ) . DeclaringType ) ;
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private IXenObject _XenObject ;
private readonly ToolTip m_invalidParamToolTip ;
private readonly AlertGroup cpuAlert ;
private readonly AlertGroup netAlert ;
private readonly AlertGroup diskAlert ;
private readonly AlertGroup memoryAlert ;
private readonly AlertGroup srAlert ;
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private readonly AlertGroup dom0MemoryAlert ;
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private readonly AlertGroup physicalUtilisationAlert ;
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public PerfmonAlertEditPage ( )
{
InitializeComponent ( ) ;
Text = Messages . ALERTS ;
m_invalidParamToolTip = new ToolTip
{
IsBalloon = true ,
ToolTipIcon = ToolTipIcon . Warning ,
ToolTipTitle = Messages . INVALID_PARAMETER
} ;
////xapi trigger level is a fraction; gui shows percentage
cpuAlert = new AlertGroup ( CPUAlertCheckBox , CpuGroupBox ,
nudCPUUsagePercent , nudCPUDurationThreshold , nudAlertInterval ,
new [ ] { cpuMinutesLabel , cpuPercentLabel , CPUUsagePercentLabel , CPUDurationThresholdLabel } )
{
AlertEnablementChanged = SetAlertIntervalEnablement ,
SubTextFormat = Messages . ALERT_CPUS_SUB_TEXT ,
PerfmonDefinitionName = PerfmonDefinition . ALARM_TYPE_CPU ,
XapiToGuiTriggerLevel = ( num = > num * 100 ) ,
XapiToGuiTriggerPeriod = ( num = > num / 60 ) ,
XapiToGuiAlertInterval = ( num = > num / 60 ) ,
GuiToXapiTriggerLevel = ( num = > num / 100 ) ,
GuiToXapiTriggerPeriod = ( num = > num * 60 ) ,
GuiToXapiAlertInterval = ( num = > num * 60 ) ,
} ;
//xapi trigger level is in B/s; gui shows KB/s
netAlert = new AlertGroup ( NetAlertCheckBox , NetGroupBox ,
nudNetUsagePercent , nudNetDurationThreshold , nudAlertInterval ,
new [ ] { NetMinutesLabel , NetPercentLabel , NetUsagePercentLabel , NetDurationThresholdLabel } )
{
AlertEnablementChanged = SetAlertIntervalEnablement ,
SubTextFormat = Messages . ALERT_NET_SUB_TEXT ,
PerfmonDefinitionName = PerfmonDefinition . ALARM_TYPE_NETWORK ,
XapiToGuiTriggerLevel = ( num = > num / 1024 ) ,
XapiToGuiTriggerPeriod = ( num = > num / 60 ) ,
XapiToGuiAlertInterval = ( num = > num / 60 ) ,
GuiToXapiTriggerLevel = ( num = > num * 1024 ) ,
GuiToXapiTriggerPeriod = ( num = > num * 60 ) ,
GuiToXapiAlertInterval = ( num = > num * 60 ) ,
} ;
//xapi trigger level is in B/s; gui shows KB/s
diskAlert = new AlertGroup ( DiskAlertCheckBox , DiskGroupBox ,
nudDiskUsagePercent , nudDiskDurationThreshold , nudAlertInterval ,
new [ ] { DiskMinutesLabel , DiskPercentLabel , DiskUsagePercentLabel , DiskDurationThresholdLabel } )
{
AlertEnablementChanged = SetAlertIntervalEnablement ,
SubTextFormat = Messages . ALERT_DISK_SUB_TEXT ,
PerfmonDefinitionName = PerfmonDefinition . ALARM_TYPE_DISK ,
XapiToGuiTriggerLevel = ( num = > num / 1024 ) ,
XapiToGuiTriggerPeriod = ( num = > num / 60 ) ,
XapiToGuiAlertInterval = ( num = > num / 60 ) ,
GuiToXapiTriggerLevel = ( num = > num * 1024 ) ,
GuiToXapiTriggerPeriod = ( num = > num * 60 ) ,
GuiToXapiAlertInterval = ( num = > num * 60 ) ,
} ;
//xapi trigger level is in kiB; gui shows MB
memoryAlert = new AlertGroup ( MemoryAlertCheckBox , MemoryGroupBox ,
nudMemoryUsage , nudMemoryDurationThreshold , nudAlertInterval ,
new [ ] { memoryMinutesLabel , memoryUsageLabel , memoryUnitsLabel , memoryDurationThresholdLabel } )
{
AlertEnablementChanged = SetAlertIntervalEnablement ,
SubTextFormat = Messages . ALERT_MEMORY_SUB_TEXT ,
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PerfmonDefinitionName = PerfmonDefinition . ALARM_TYPE_MEMORY_FREE ,
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XapiToGuiTriggerLevel = ( num = > num / 1024 ) ,
XapiToGuiTriggerPeriod = ( num = > num / 60 ) ,
XapiToGuiAlertInterval = ( num = > num / 60 ) ,
GuiToXapiTriggerLevel = ( num = > num * 1024 ) ,
GuiToXapiTriggerPeriod = ( num = > num * 60 ) ,
GuiToXapiAlertInterval = ( num = > num * 60 ) ,
} ;
//xapi trigger level is in MiB/s; gui shows KB/s
srAlert = new AlertGroup ( SrAlertCheckBox , SrGroupBox ,
nudSrUsage , nudSrMinutes , nudAlertInterval ,
new [ ] { SrUsageLabel , srMinutesLabel , srUnitsLabel , SrDurationThresholdLabel } )
{
AlertEnablementChanged = SetAlertIntervalEnablement ,
SubTextFormat = Messages . ALERT_SR_SUB_TEXT ,
PerfmonDefinitionName = PerfmonDefinition . ALARM_TYPE_SR ,
XapiToGuiTriggerLevel = ( num = > num * 1024 ) ,
XapiToGuiTriggerPeriod = ( num = > num / 60 ) ,
XapiToGuiAlertInterval = ( num = > num / 60 ) ,
GuiToXapiTriggerLevel = ( num = > num / 1024 ) ,
GuiToXapiTriggerPeriod = ( num = > num * 60 ) ,
GuiToXapiAlertInterval = ( num = > num * 60 ) ,
} ;
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dom0MemoryAlert = new AlertGroup ( Dom0MemoryAlertCheckBox , Dom0MemoryUsageGroupBox ,
nudDom0MemUsage , nudDom0MemoryDurationThreshold , nudAlertInterval ,
new [ ] { dom0MemoryMinutesLabel , dom0MemoryPercentLabel , Dom0MemoryUsagePercentLabel , Dom0MemoryDurationThresholdLabel } )
{
AlertEnablementChanged = SetAlertIntervalEnablement ,
SubTextFormat = Messages . ALERT_DOM0_MEMORY_SUB_TEXT ,
PerfmonDefinitionName = PerfmonDefinition . ALARM_TYPE_MEMORY_DOM0_USAGE ,
XapiToGuiTriggerLevel = ( num = > num * 100 ) ,
XapiToGuiTriggerPeriod = ( num = > num / 60 ) ,
XapiToGuiAlertInterval = ( num = > num / 60 ) ,
GuiToXapiTriggerLevel = ( num = > num / 100 ) ,
GuiToXapiTriggerPeriod = ( num = > num * 60 ) ,
GuiToXapiAlertInterval = ( num = > num * 60 ) ,
} ;
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physicalUtilisationAlert = new AlertGroup ( physicalUtilisationAlertCheckBox , PhysicalUtilisationGroupBox ,
nudPhysicalUtilisation , nudPhysicalUtilisationDurationThreshold , nudAlertInterval ,
new [ ] { physicalUtilisationLabel , physicalUtilisationDurationLabel , physicalUtilisationPercentLabel , physicalUtilisationMinutesLabel } )
{
AlertEnablementChanged = SetAlertIntervalEnablement ,
SubTextFormat = Messages . ALERT_SR_PHYSICAL_UTILISATION_SUB_TEXT ,
PerfmonDefinitionName = PerfmonDefinition . ALARM_TYPE_SR_PHYSICAL_UTILISATION ,
XapiToGuiTriggerLevel = ( num = > num * 100 ) ,
XapiToGuiTriggerPeriod = ( num = > num / 60 ) ,
XapiToGuiAlertInterval = ( num = > num / 60 ) ,
GuiToXapiTriggerLevel = ( num = > num / 100 ) ,
GuiToXapiTriggerPeriod = ( num = > num * 60 ) ,
GuiToXapiAlertInterval = ( num = > num * 60 ) ,
} ;
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cpuAlert . ToggleAlertGroupEnablement ( ) ;
netAlert . ToggleAlertGroupEnablement ( ) ;
diskAlert . ToggleAlertGroupEnablement ( ) ;
memoryAlert . ToggleAlertGroupEnablement ( ) ;
srAlert . ToggleAlertGroupEnablement ( ) ;
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dom0MemoryAlert . ToggleAlertGroupEnablement ( ) ;
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physicalUtilisationAlert . ToggleAlertGroupEnablement ( ) ;
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}
public string SubText
{
get
{
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var subs = from AlertGroup g in new [ ] { cpuAlert , netAlert , diskAlert , memoryAlert , srAlert , physicalUtilisationAlert , dom0MemoryAlert }
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where ! string . IsNullOrEmpty ( g . SubText )
select g . SubText ;
string text = string . Join ( "; " , subs . ToArray ( ) ) ;
return string . IsNullOrEmpty ( text ) ? Messages . NONE_DEFINED : text ;
}
}
public Image Image
{
get { return Properties . Resources . _000_Alert2_h32bit_16 ; }
}
public void SetXenObjects ( IXenObject orig , IXenObject clone )
{
_XenObject = clone ;
bool isVm = _XenObject is VM ;
bool isHost = _XenObject is Host ;
bool isSr = _XenObject is SR ;
cpuAlert . Show ( isVm | | isHost ) ;
netAlert . Show ( isVm | | isHost ) ;
diskAlert . Show ( isVm ) ;
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memoryAlert . Show ( isHost ) ;
srAlert . Show ( isSr ) ;
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dom0MemoryAlert . Show ( isHost & & Helpers . CreedenceOrGreater ( _XenObject . Connection ) ) ;
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physicalUtilisationAlert . Show ( isSr & & ( ( SR ) _XenObject ) . IsThinProvisioned ) ;
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if ( isHost )
{
Host host = ( Host ) _XenObject ;
Host_metrics metrics = host . Connection . Resolve ( host . metrics ) ;
if ( metrics ! = null )
nudMemoryUsage . Maximum = metrics . memory_total / ( 1024 * 1024 ) ;
}
Repopulate ( ) ;
}
private void Repopulate ( )
{
if ( _XenObject = = null )
return ;
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try
{
var perfmonDefinitions = PerfmonDefinition . GetPerfmonDefinitions ( _XenObject ) ;
for ( int i = 0 ; i < perfmonDefinitions . Length ; i + + )
{
PerfmonDefinition perfmonDefinition = perfmonDefinitions [ i ] ;
if ( perfmonDefinition . IsCPUUsage )
cpuAlert . Populate ( perfmonDefinition ) ;
else if ( perfmonDefinition . IsNetworkUsage )
netAlert . Populate ( perfmonDefinition ) ;
else if ( perfmonDefinition . IsDiskUsage )
diskAlert . Populate ( perfmonDefinition ) ;
else if ( perfmonDefinition . IsMemoryUsage )
memoryAlert . Populate ( perfmonDefinition ) ;
else if ( perfmonDefinition . IsSrUsage )
srAlert . Populate ( perfmonDefinition ) ;
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else if ( perfmonDefinition . IsSrPhysicalUtilisation )
physicalUtilisationAlert . Populate ( perfmonDefinition ) ;
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}
}
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catch ( Exception ex )
{
log . Error ( "Unexpected error during populating controls for Alerts. Exception swallowed." , ex ) ; //Adding this to pre-existing empty catch block to log it at least
}
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// Dom0 memory usage is stored in the other_config of the Dom0 vm not on the host (or any other XenObject)
try
{
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var host = _XenObject as Host ;
if ( host ! = null )
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{
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var dom0 = host . ControlDomainZero ;
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if ( dom0 ! = null )
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{
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var controlDomainPerfmonDefinitions = PerfmonDefinition . GetPerfmonDefinitions ( dom0 ) ;
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if ( controlDomainPerfmonDefinitions ! = null )
{
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for ( int i = 0 ; i < controlDomainPerfmonDefinitions . Length ; i + + )
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{
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var def = controlDomainPerfmonDefinitions [ i ] ;
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if ( def ! = null & & def . IsDom0MemoryUsage )
dom0MemoryAlert . Populate ( def ) ;
}
}
}
}
}
catch ( Exception ex )
{
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log . Error ( "Unexpected error during populating controls for Dom0 Memory Usage alert. Exception swallowed." , ex ) ; //Any error here will cause the controls not being populated, but they will be still usable.
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}
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}
public bool HasChanged
{
get
{
if ( nudAlertInterval . HasChanged )
return true ;
if ( _XenObject is SR )
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return srAlert . HasChanged | | physicalUtilisationAlert . HasChanged ;
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if ( _XenObject is VM )
return cpuAlert . HasChanged | | netAlert . HasChanged | | diskAlert . HasChanged ;
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return cpuAlert . HasChanged | | netAlert . HasChanged | | memoryAlert . HasChanged | | dom0MemoryAlert . HasChanged ;
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}
}
public void ShowLocalValidationMessages ( )
{
decimal val ;
if ( decimal . TryParse ( nudAlertInterval . Text , NumberStyles . Any , CultureInfo . InvariantCulture , out val )
& & val % 5 ! = 0 )
{
HelpersGUI . ShowBalloonMessage ( nudAlertInterval ,
Messages . PERFORM_ALERT_EDIT_INTERVAL_WRONG_MULTIPLE ,
m_invalidParamToolTip ) ;
}
}
public void Cleanup ( )
{
if ( m_invalidParamToolTip ! = null )
m_invalidParamToolTip . Dispose ( ) ;
}
public bool ValidToSave
{
get
{
decimal val ;
if ( ! decimal . TryParse ( nudAlertInterval . Text , NumberStyles . Any , CultureInfo . InvariantCulture , out val ) )
return false ;
if ( val % 5 ! = 0 )
return false ;
return true ;
}
}
public AsyncAction SaveSettings ( )
{
List < PerfmonDefinition > perfmonDefinitions = new List < PerfmonDefinition > ( ) ;
if ( cpuAlert . Enabled )
perfmonDefinitions . Add ( cpuAlert . AlertDefinition ) ;
if ( netAlert . Enabled )
perfmonDefinitions . Add ( netAlert . AlertDefinition ) ;
if ( _XenObject is VM & & diskAlert . Enabled )
perfmonDefinitions . Add ( diskAlert . AlertDefinition ) ;
if ( _XenObject is Host & & memoryAlert . Enabled )
perfmonDefinitions . Add ( memoryAlert . AlertDefinition ) ;
if ( _XenObject is SR & & srAlert . Enabled )
perfmonDefinitions . Add ( srAlert . AlertDefinition ) ;
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if ( _XenObject is Host & & dom0MemoryAlert . Enabled )
perfmonDefinitions . Add ( dom0MemoryAlert . AlertDefinition ) ;
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if ( _XenObject is SR & & physicalUtilisationAlert . Enabled )
perfmonDefinitions . Add ( physicalUtilisationAlert . AlertDefinition ) ;
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return new PerfmonDefinitionAction ( _XenObject , perfmonDefinitions , true ) ;
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}
private void SetAlertIntervalEnablement ( )
{
bool enable = cpuAlert . Enabled | | netAlert . Enabled | | diskAlert . Enabled
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| | memoryAlert . Enabled | | srAlert . Enabled | | dom0MemoryAlert . Enabled | | physicalUtilisationAlert . Enabled ;
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nudAlertInterval . Enabled = enable ;
AlertIntervalMinutesLabel . Enabled = enable ;
AlertIntervalLabel . Enabled = enable ;
}
}
public class AlertGroup
{
private readonly AlertCheckBox m_checkBox ;
private readonly DecentGroupBox m_groupBox ;
private readonly AlertNumericUpDown m_upDownTriggerLevel ;
private readonly AlertNumericUpDown m_upDownTriggerPeriod ;
private readonly AlertNumericUpDown m_upDownAlertInterval ;
private readonly IEnumerable < Label > m_labels ;
public AlertGroup ( AlertCheckBox theCheckBox , DecentGroupBox theGroupBox ,
AlertNumericUpDown triggerLevelUpDown , AlertNumericUpDown triggerThresholdUpDown ,
AlertNumericUpDown alertIntervalUpDown , IEnumerable < Label > theLabels )
{
Debug . Assert ( theCheckBox ! = null & & theGroupBox ! = null
& & triggerLevelUpDown ! = null & & triggerThresholdUpDown ! = null
& & alertIntervalUpDown ! = null & & theLabels ! = null ) ;
m_checkBox = theCheckBox ;
m_groupBox = theGroupBox ;
m_upDownTriggerLevel = triggerLevelUpDown ;
m_upDownTriggerPeriod = triggerThresholdUpDown ;
m_upDownAlertInterval = alertIntervalUpDown ;
m_labels = theLabels ;
m_checkBox . CheckedChanged + = m_theCheckBox_CheckedChanged ;
StoreOriginalSetting ( ) ;
}
public Action AlertEnablementChanged ;
public string SubTextFormat ;
public string PerfmonDefinitionName ;
public Func < decimal , decimal > XapiToGuiTriggerLevel ;
public Func < decimal , decimal > GuiToXapiTriggerLevel ;
public Func < decimal , decimal > XapiToGuiTriggerPeriod ;
public Func < decimal , decimal > GuiToXapiTriggerPeriod ;
public Func < decimal , decimal > XapiToGuiAlertInterval ;
public Func < decimal , decimal > GuiToXapiAlertInterval ;
public PerfmonDefinition AlertDefinition
{
get
{
Debug . Assert ( ! string . IsNullOrEmpty ( PerfmonDefinitionName ) & &
GuiToXapiTriggerLevel ! = null & & GuiToXapiTriggerPeriod ! = null
& & GuiToXapiAlertInterval ! = null ) ;
return new PerfmonDefinition ( PerfmonDefinitionName ,
GuiToXapiTriggerLevel ( m_upDownTriggerLevel . Value ) ,
GuiToXapiTriggerPeriod ( m_upDownTriggerPeriod . Value ) ,
GuiToXapiAlertInterval ( m_upDownAlertInterval . Value ) ) ;
}
}
public string SubText
{
get
{
return m_checkBox . Checked & & ! string . IsNullOrEmpty ( this . SubTextFormat )
? string . Format ( this . SubTextFormat , this . m_upDownTriggerLevel . Value , this . m_upDownTriggerPeriod . Value )
: null ;
}
}
public bool Enabled
{
get { return m_checkBox . Checked ; }
}
public bool HasChanged
{
get { return m_upDownTriggerLevel . HasChanged | | m_upDownTriggerPeriod . HasChanged | | m_checkBox . HasChanged ; }
}
public void Populate ( PerfmonDefinition perfmon )
{
Debug . Assert ( XapiToGuiTriggerLevel ! = null & & XapiToGuiTriggerPeriod ! = null & & XapiToGuiAlertInterval ! = null ) ;
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if ( perfmon . HasValueSet )
{
m_checkBox . Checked = true ;
m_upDownTriggerLevel . Value = XapiToGuiTriggerLevel ( perfmon . AlarmTriggerLevel ) ;
m_upDownTriggerPeriod . Value = XapiToGuiTriggerPeriod ( perfmon . AlarmTriggerPeriod ) ;
}
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try
{
m_upDownAlertInterval . Value = XapiToGuiAlertInterval ( perfmon . AlarmAutoInhibitPeriod ) ;
}
catch
{
m_upDownAlertInterval . Value = 60 ;
}
StoreOriginalSetting ( ) ;
}
public void Show ( bool show )
{
m_groupBox . Visible = show ;
}
public void ToggleAlertGroupEnablement ( )
{
m_upDownTriggerLevel . Enabled = m_checkBox . Checked ;
m_upDownTriggerPeriod . Enabled = m_checkBox . Checked ;
foreach ( var label in m_labels )
label . Enabled = m_checkBox . Checked ;
if ( AlertEnablementChanged ! = null )
AlertEnablementChanged . Invoke ( ) ;
}
private void StoreOriginalSetting ( )
{
m_upDownTriggerLevel . StoreOriginalSetting ( ) ;
m_upDownTriggerPeriod . StoreOriginalSetting ( ) ;
m_upDownAlertInterval . StoreOriginalSetting ( ) ;
m_checkBox . StoreOriginalSetting ( ) ;
}
private void m_theCheckBox_CheckedChanged ( object sender , EventArgs e )
{
ToggleAlertGroupEnablement ( ) ;
}
}
public class AlertNumericUpDown : NumericUpDown
{
private decimal m_originalValue ;
protected override void OnLostFocus ( EventArgs e )
{
base . OnLostFocus ( e ) ;
if ( Text = = "" )
Text = ( Value = m_originalValue ) . ToString ( ) ;
}
public bool HasChanged
{
get { return m_originalValue ! = Value ; }
}
public void StoreOriginalSetting ( )
{
m_originalValue = Value ;
}
}
public class AlertCheckBox : CheckBox
{
private bool m_originalValue ;
public bool HasChanged
{
get { return m_originalValue ! = Checked ; }
}
public void StoreOriginalSetting ( )
{
m_originalValue = Checked ;
}
}
}