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Created: Sat, Sep 27, 10:04 PM

unit_config_cloner.php
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	<?php
	/**
	* @version $Id: unit_config_cloner.php 16252 2015-09-27 06:34:45Z alex $
	* @package In-Portal
	* @copyright Copyright (C) 1997 - 2013 Intechnic. All rights reserved.
	* @license GNU/GPL
	* In-Portal is Open Source software.
	* This means that this software may have been modified pursuant
	* the GNU General Public License, and as distributed it includes
	* or is derivative of works licensed under the GNU General Public License
	* or other free or open source software licenses.
	* See http://www.in-portal.org/license for copyright notices and details.
	*/

	defined('FULL_PATH') or die('restricted access!');

	class kUnitConfigCloner extends kBase implements kiCacheable
	{

	/**
	* Unit config reader.
	*
	* @var kUnitConfigReader
	*/
	protected $reader;

	/**
	* Cloned unit config difference compared to original unit config.
	*
	* @var array
	*/
	protected $clones = array();

	/**
	* Creates cloner.
	*/
	public function __construct(kUnitConfigReader $reader)
	{
	parent::__construct();

	$this->reader = $reader;
	}

	/**
	* Sets data from cache to object
	*
	* @param Array $data
	*/
	public function setFromCache(&$data)
	{
	$this->clones = $data['ConfigCloner.clones'];
	}

	/**
	* Gets object data for caching
	*
	* @return Array
	*/
	public function getToCache()
	{
	return array(
	'ConfigCloner.clones' => $this->clones,
	);
	}

	/**
	* Creates unit configs, based on 'Clones' option.
	*
	* @param string $prefix Unit config prefix.
	* @param boolean $with_cached Process also cached clones.
	*
	* @return array
	*/
	public function extrude($prefix, $with_cached = true)
	{
	$main_config = $this->reader->getUnitConfig($prefix);
	$sub_configs = $main_config->getSetting('Clones', array());

	if ( $with_cached && isset($this->clones[$prefix]) ) {
	$sub_configs = array_merge($sub_configs, $this->clones[$prefix]);
	}

	if ( !$sub_configs ) {
	return array();
	}

	$processed = array();
	$main_config->setSetting('Clones', null);
	unset($this->clones[$prefix]);

	if ( !isset($this->clones[$prefix]) ) {
	$this->clones[$prefix] = array();
	}

	foreach ( $sub_configs as $sub_prefix => $sub_config_data ) {
	$this->clones[$prefix][$sub_prefix] = $sub_config_data;

	$sub_config_data['Prefix'] = $sub_prefix;
	$sub_config = $this->prepareClone($main_config, $sub_config_data);
	$this->reader->add($sub_config, $this->reader->getPrefixFile($prefix));

	array_push($processed, $sub_prefix);
	}

	if ( !$prefix ) {
	// configs, that used only for cloning & not used itself
	$this->reader->remove($prefix);
	}

	return array_unique($processed);
	}

	/**
	* Prepares data for of cloned unit config.
	*
	* @param kUnitConfig $main_config Main unit config.
	* @param array $sub_config_data Sub config data.
	*
	* @return kUnitConfig
	*/
	protected function prepareClone(kUnitConfig $main_config, $sub_config_data)
	{
	$ret = kUtil::array_merge_recursive($main_config->getRaw(), $sub_config_data);

	foreach ($sub_config_data as $key => $value) {
	if ( !$value && is_array($value) ) {
	unset($ret[$key]);
	}
	}

	return new kUnitConfig($sub_config_data['Prefix'], $ret);
	}

	/**
	* Creates clones (where needed) and parses them.
	*
	* @param array $prefixes Unit config prefixes.
	*
	* @return array
	*/
	public function extrudeAndParse(array $prefixes)
	{
	$cloned_prefixes = array();

	foreach ( $prefixes as $prefix ) {
	$cloned_prefixes = array_merge($cloned_prefixes, $this->extrude($prefix));
	}

	foreach ( $cloned_prefixes as $cloned_prefix ) {
	$this->reader->getUnitConfig($cloned_prefix)->parse();
	}

	return array_unique($cloned_prefixes);
	}

	/**
	* Process clones, that were defined via OnAfterConfigRead event
	*
	* @return void
	*/
	public function processDynamicallyAdded()
	{
	$new_clones = $this->extrudeAndParse($this->reader->getPrefixes());

	// execute delayed methods for cloned unit configs
	$this->Application->cacheManager->applyDelayedUnitProcessing();

	// call OnAfterConfigRead for cloned configs
	foreach ( $new_clones as $prefix ) {
	$this->reader->runAfterConfigRead($prefix);
	}
	}
	}

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