/
DepthRangeFilterIterator.php
67 lines (60 loc) · 1.9 KB
/
DepthRangeFilterIterator.php
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<?php
namespace Symfony\Component\Finder\Iterator;
/*
* This file is part of the Symfony framework.
*
* (c) Fabien Potencier <fabien.potencier@symfony-project.com>
*
* This source file is subject to the MIT license that is bundled
* with this source code in the file LICENSE.
*/
/**
* DepthRangeFilterIterator limits the directory depth.
*
* @author Fabien Potencier <fabien.potencier@symfony-project.com>
*/
class DepthRangeFilterIterator extends \FilterIterator
{
protected $minDepth = 0;
/**
* Constructor.
*
* @param \RecursiveIteratorIterator $iterator The Iterator to filter
* @param array $comparators An array of \NumberComparator instances
*/
public function __construct(\RecursiveIteratorIterator $iterator, array $comparators)
{
$minDepth = 0;
$maxDepth = INF;
foreach ($comparators as $comparator) {
switch ($comparator->getOperator()) {
case '>':
$minDepth = $comparator->getTarget() + 1;
break;
case '>=':
$minDepth = $comparator->getTarget();
break;
case '<':
$maxDepth = $comparator->getTarget() - 1;
break;
case '<=':
$maxDepth = $comparator->getTarget();
break;
default:
$minDepth = $maxDepth = $comparator->getTarget();
}
}
$this->minDepth = $minDepth;
$iterator->setMaxDepth(INF === $maxDepth ? -1 : $maxDepth);
parent::__construct($iterator);
}
/**
* Filters the iterator values.
*
* @return Boolean true if the value should be kept, false otherwise
*/
public function accept()
{
return $this->getInnerIterator()->getDepth() >= $this->minDepth;
}
}