PSDoFramework

1.1.0

DoCli/Objects/Processing/ProcessBuilder.psm1

                                using namespace DoFramework.Processing;

using namespace DoFramework.Services;

using namespace DoFramework.Environment;

using namespace DoFramework.Domain;

using namespace DoFramework.Types;

using namespace DoFramework.Validators;

using namespace DoFramework.Logging;

using namespace System.Reflection;

<#

.SYNOPSIS

Class for building process instances within the DoFramework environment.

.DESCRIPTION

The ProcessBuilder class is designed to create and configure process instances 

within the DoFramework environment. It sets up service containers, looks up 

process types, and constructs process instances with the necessary parameters.

#>

class ProcessBuilder : IProcessBuilder {

    <#

    .SYNOPSIS

    Initializes a new instance of the ProcessBuilder class.

    .DESCRIPTION

    Constructor for the ProcessBuilder class, which sets up the service container, 

    environment, lookup type, type validator, and logger for the process building.

    #>

    [IServiceContainer] $ServiceContainer;

    [IEnvironment] $Environment;

    [ILookupProcessType] $LookupType;

    [IValidator[Type]] $TypeVaidator;

    [ILogger] $Logger;

    ProcessBuilder(

        [IServiceContainer] $serviceContainer, 

        [IEnvironment] $environment,

        [ILookupProcessType] $lookupType,

        [IValidator[Type]] $typeValidator,

        [ILogger] $logger) {

        $this.ServiceContainer = $serviceContainer;

        $this.Environment = $environment;

        $this.LookupType = $lookupType;

        $this.Logger = $logger;

    }

    <#

    .SYNOPSIS

    Builds a process instance based on the provided descriptor.

    .DESCRIPTION

    The Build method retrieves the process type, gathers the necessary constructor 

    parameters, and creates a new instance of the process within the DoFramework environment.

    #>

    [IProcess] Build([ProcessDescriptor] $descriptor) {

        . "$($this.Environment.ProcessesDir)$([DoFramework.Environment.Environment]::Separator)$($descriptor.Path)";

        [Type] $type = $this.LookupType.Lookup($descriptor.Name);

        [ParameterInfo[]] $parameters = $type.GetConstructors()[0].GetParameters();

        [object[]] $constructorParams = @();

        try {

            foreach($param in $parameters) {

                [object] $service = $this.ServiceContainer.GetService($param.ParameterType);

                $constructorParams += $service;

            }

        }

        catch {

            return $null;

        }

        return New-Object -TypeName $descriptor.Name -ArgumentList $constructorParams;

    }

}