<?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;
/**
* DirectoryResource represents a resources stored in a subdirectory tree.
* @author Fabien Potencier <fabien@symfony.com>
class DirectoryResource implements ResourceInterface
{
private $resource;
private $pattern;
* Constructor.
* @param string $resource The file path to the resource
* @param string $pattern A pattern to restrict monitored files
public function __construct($resource, $pattern = null)
$this->resource = $resource;
$this->pattern = $pattern;
}
* 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;
$newestMTime = filemtime($this->resource);
foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($this->resource), \RecursiveIteratorIterator::SELF_FIRST) as $file) {
// if regex filtering is enabled only check matching files
if ($this->pattern && $file->isFile() && !preg_match($this->pattern, $file->getBasename())) {
continue;
// always monitor directories for changes, except the .. entries
// (otherwise deleted files wouldn't get detected)
if ($file->isDir() && '/..' === substr($file, -3)) {
$newestMTime = max($file->getMTime(), $newestMTime);
return $newestMTime < $timestamp;