Framework/Listeners/GenericListener/GenericListener.ps1

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Set-StrictMode -Version Latest 

class GenericListener: ListenerBase
{        
    hidden static [GenericListener] $Instance = $null;  
    
    hidden [GenericListenerBase[]] $ExtendedListeners = @();
    
    
    GenericListener()
    {
        
    }

    static [GenericListener] GetInstance()
    {
        if($null -eq [GenericListener]::Instance)
        {
            [GenericListener]::Instance = [GenericListener]::new();
        }
        return [GenericListener]::Instance;
    }

    [void] RegisterEvents()
    {
        $this.UnregisterEvents();

        # Mandatory: Generate Run Identifier Event
        $this.RegisterEvent([AzSKRootEvent]::GenerateRunIdentifier, {
            $currentInstance = [GenericListener]::GetInstance();
            try 
            {
                $rootEventArgs = [AzSKRootEventArgument] ($Event.SourceArgs | Select-Object -First 1);
                $currentInstance.SetRunIdentifier($rootEventArgs);                                         
                $currentInstance.LoadExtendedListeners($rootEventArgs);
            }
            catch 
            {
                $currentInstance.PublishException($_);
            }
        });    
        
        $this.RegisterEvent([SVTEvent]::CommandStarted, {
            $currentInstance = [GenericListener]::GetInstance();
            try 
            {
                $params = @{};
                $params.Add("EventArgs", $Event.SourceArgs);
                $currentInstance.CallListenersMethod("SVTCommandStarted",$params);
            }
            catch{
                $currentInstance.PublishException($_);
            }
            
        });


        $this.RegisterEvent([AzSKRootEvent]::CommandStarted, {
            $currentInstance = [GenericListener]::GetInstance();
            try 
            {
                $params = @{};
                $params.Add("EventArgs", $Event.SourceArgs);
                $currentInstance.CallListenersMethod("GenericCommandStarted",$params);
            }
            catch 
            {
                $currentInstance.PublishException($_);
            }
        });


        $this.RegisterEvent([AzSKRootEvent]::CommandCompleted, {
            $currentInstance = [GenericListener]::GetInstance();
            try 
            {
                $params = @{};
                $params.Add("EventArgs", $Event.SourceArgs);
                $currentInstance.CallListenersMethod("GenericCommandCompleted",$params);
            }
            catch 
            {
                $currentInstance.PublishException($_);
            }
        });

        $this.RegisterEvent([SVTEvent]::CommandCompleted, {
            $currentInstance = [GenericListener]::GetInstance();
            try 
            {
                $params = @{};
                $params.Add("EventArgs", $Event.SourceArgs);
                $currentInstance.CallListenersMethod("SVTCommandCompleted",$params);
            }
            catch 
            {
                $currentInstance.PublishException($_);
            }
        });

        $this.RegisterEvent([SVTEvent]::EvaluationStarted, {
            $currentInstance = [GenericListener]::GetInstance();
            try
            {
                $params = @{};
                $params.Add("EventArgs", $Event.SourceArgs);
                $currentInstance.CallListenersMethod("FeatureEvaluationStarted",$params);
            }
            catch
            {
                $currentInstance.PublishException($_);
            }
        });

        $this.RegisterEvent([SVTEvent]::EvaluationCompleted, {
            $currentInstance = [GenericListener]::GetInstance();
            try
            {
                $params = @{};
                $params.Add("EventArgs", $Event.SourceArgs);
                $currentInstance.CallListenersMethod("FeatureEvaluationCompleted",$params);
            }
            catch
            {
                $currentInstance.PublishException($_);
            }
        });
    }

    [void] LoadExtendedListeners([AzSKRootEventArgument] $rootEventArgs)
    {
        if(($this.ExtendedListeners | Measure-Object).Count -le 0)
        {
            $ListenerFilePaths = [ConfigurationManager]::RegisterExtListenerFiles();
            if(($ListenerFilePaths | Measure-Object).Count -gt 0)
            {                
                $ListenerFilePaths | ForEach-Object {
                    $listenerPath = $_;
                    . $listenerPath
                    $listenerFileName = [System.IO.Path]::GetFileName($listenerPath);
                    $listenerClassName = $listenerFileName.trimend(".ext.ps1") + "Ext"
                    $listenerObject = New-Object -TypeName $listenerClassName -ArgumentList $this, $rootEventArgs
                    $this.ExtendedListeners += $listenerObject;
                }
            }
        }        
    }

    [void] CallListenersMethod($methodName, $parameters)
    {
        if(($this.ExtendedListeners | Measure-Object).Count -gt 0)
        {
            $this.ExtendedListeners | ForEach-Object {
                $listenerObject = $_
                $listenerObject.$methodName($parameters);
            }
        }
    }
}