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;
        }
}