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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Config\Resource;
/**
* FileResource represents a resource stored on the filesystem.
*
* The resource can be a file or a directory.
*
* @author Fabien Potencier <fabien@symfony.com>
*/
class FileResource implements ResourceInterface, \Serializable
{
private $resource;
/**
* Constructor.
*
* @param string $resource The file path to the resource
*/
public function __construct($resource)
{
$this->resource = realpath($resource);
}
/**
* Returns a string representation of the Resource.
*
* @return string A string representation of the Resource
*/
public function __toString()
{
return (string) $this->resource;
}
/**
* Returns the resource tied to this Resource.
*
* @return mixed The resource
*/
public function getResource()
{
return $this->resource;
}
/**
* Returns true if the resource has not been updated since the given timestamp.
*
* @param integer $timestamp The last time the resource was loaded
*
* @return Boolean true if the resource has not been updated, false otherwise
*/
public function isFresh($timestamp)
{
if (!file_exists($this->resource)) {
return false;
}
return filemtime($this->resource) < $timestamp;
}
public function serialize()
{
return serialize($this->resource);
}
public function unserialize($serialized)
{
$this->resource = unserialize($serialized);
}
}