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<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/
namespace phpbb\di;
use Symfony\Component\DependencyInjection\ContainerInterface;
/**
* Collection of services in a specified order
*/
class ordered_service_collection extends service_collection
{
/**
* @var bool
*/
protected $is_ordered;
/**
* @var array
*/
protected $service_ids;
/**
* Constructor
*
* @param ContainerInterface $container Container object
*/
public function __construct(ContainerInterface $container)
{
$this->is_ordered = false;
$this->service_ids = array();
parent::__construct($container);
}
/**
* {@inheritdoc}
*/
public function getIterator()
{
if (!$this->is_ordered)
{
$this->sort_services();
}
return new service_collection_iterator($this);
}
/**
* {@inheritdoc}
*/
public function offsetExists($index)
{
if (!$this->is_ordered)
{
$this->sort_services();
}
return parent::offsetExists($index);
}
/**
* {@inheritdoc}
*/
public function offsetGet($index)
{
if (!$this->is_ordered)
{
$this->sort_services();
}
return parent::offsetGet($index);
}
/**
* Adds a service ID to the collection
*
* @param string $service_id
* @param int $order
*/
public function add($service_id, $order = 0)
{
$order = (int) $order;
$this->service_ids[$order][] = $service_id;
$this->is_ordered = false;
}
protected function sort_services()
{
if ($this->is_ordered)
{
return;
}
$this->exchangeArray(array());
ksort($this->service_ids);
foreach ($this->service_ids as $service_order_group)
{
foreach ($service_order_group as $service_id)
{
$this->offsetSet($service_id, null);
}
}
$this->is_ordered = true;
}
}
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