AssetManager.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\Asset\AssetInterface;
/**
* Manages assets.
*
* @author Kris Wallsmith <kris.wallsmith@gmail.com>
*/
class AssetManager
{
private $assets = array();
/**
* Gets an asset by name.
*
* @param string $name The asset name
*
* @return AssetInterface The asset
*
* @throws \InvalidArgumentException If there is no asset by that name
*/
public function get($name)
{
if (!isset($this->assets[$name])) {
throw new \InvalidArgumentException(sprintf('There is no "%s" asset.', $name));
}
return $this->assets[$name];
}
/**
* Checks if the current asset manager has a certain asset.
*
* @param string $name an asset name
*
* @return Boolean True if the asset has been set, false if not
*/
public function has($name)
{
return isset($this->assets[$name]);
}
/**
* Registers an asset to the current asset manager.
*
* @param string $name The asset name
* @param AssetInterface $asset The asset
*
* @throws \InvalidArgumentException If the asset name is invalid
*/
public function set($name, AssetInterface $asset)
{
if (!ctype_alnum(str_replace('_', '', $name))) {
throw new \InvalidArgumentException(sprintf('The name "%s" is invalid.', $name));
}
$this->assets[$name] = $asset;
}
/**
* Returns an array of asset names.
*
* @return array An array of asset names
*/
public function getNames()
{
return array_keys($this->assets);
}
/**
* Clears all assets.
*/
public function clear()
{
$this->assets = array();
}
}