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FilterManager.php
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FilterManager.php
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<?php
/*
* This file is part of the Assetic package, an OpenSky project.
*
* (c) 2010-2014 OpenSky Project Inc
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Assetic;
use Assetic\Filter\FilterInterface;
/**
* Manages the available filters.
*
* @author Kris Wallsmith <kris.wallsmith@gmail.com>
*/
class FilterManager
{
private $filters = array();
public function set($alias, FilterInterface $filter)
{
$this->checkName($alias);
$this->filters[$alias] = $filter;
}
public function get($alias)
{
if (!isset($this->filters[$alias])) {
throw new \InvalidArgumentException(sprintf('There is no "%s" filter.', $alias));
}
return $this->filters[$alias];
}
public function has($alias)
{
return isset($this->filters[$alias]);
}
public function getNames()
{
return array_keys($this->filters);
}
/**
* Checks that a name is valid.
*
* @param string $name An asset name candidate
*
* @throws \InvalidArgumentException If the asset name is invalid
*/
protected function checkName($name)
{
if (!ctype_alnum(str_replace('_', '', $name))) {
throw new \InvalidArgumentException(sprintf('The name "%s" is invalid.', $name));
}
}
}