class.ilDataEmitter.php

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<?php
/* Copyright (c) 1998-2016 ILIAS open source, Extended GPL, see docs/LICENSE */

require_once './Services/WorkflowEngine/interfaces/ilEmitter.php';
require_once './Services/WorkflowEngine/interfaces/ilDetector.php';
require_once './Services/WorkflowEngine/interfaces/ilNode.php';
require_once './Services/WorkflowEngine/interfaces/ilWorkflowEngineElement.php';

class ilDataEmitter implements ilEmitter, ilWorkflowEngineElement
{
    private $target_detector;

    private $context;

    private $emitted;

    protected $name;

    protected $var_name;

    public function __construct(ilNode $context)
    {
        $this->context = $context;
        $this->emitted = false;
    }

    public function setTargetDetector(ilDetector $target_detector)
    {
        $this->target_detector = $target_detector;
    }

    public function getTargetDetector()
    {
        return $this->target_detector;
    }

    public function getContext()
    {
        return $this->context;
    }

    public function emit()
    {
        $instance_vars = $this->context->getContext()->getInstanceVars();

        $target = $this->var_name;
        foreach ($instance_vars as $instance_var) {
            if ($instance_var['id'] == $this->var_name) {
                if ($instance_var['reference']) {
                    $target = $instance_var['target'];
                }
            }
        }

        foreach ((array) $this->context->getContext()->getInstanceVars() as $value) {
            if ($value['id'] == $target) {
                $this->getContext()->getContext()->setInstanceVarById($target, $value['value']);
            }
        }

        if ($this->target_detector instanceof ilDetector) {
            $this->target_detector->trigger(array());
        }
        $this->emitted = true;
    }

    public function getActivated()
    {
        return $this->emitted;
    }

    public function setName($name)
    {
        $this->name = $name;
    }

    public function getName()
    {
        return $this->name;
    }

    public function getVarName()
    {
        return $this->var_name;
    }

    public function setVarName($var_name)
    {
        $this->var_name = $var_name;
    }
}