77 lines
1.6 KiB
PHP
77 lines
1.6 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Config\Resource;
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/**
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* FileExistenceResource represents a resource stored on the filesystem.
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* Freshness is only evaluated against resource creation or deletion.
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*
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* The resource can be a file or a directory.
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*
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* @author Charles-Henri Bruyand <charleshenri.bruyand@gmail.com>
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*/
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class FileExistenceResource implements SelfCheckingResourceInterface, \Serializable
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{
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private $resource;
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private $exists;
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/**
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* @param string $resource The file path to the resource
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*/
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public function __construct($resource)
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{
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$this->resource = (string) $resource;
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$this->exists = file_exists($resource);
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}
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/**
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* {@inheritdoc}
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*/
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public function __toString()
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{
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return $this->resource;
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}
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/**
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* {@inheritdoc}
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*/
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public function getResource()
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{
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return $this->resource;
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}
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/**
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* {@inheritdoc}
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*/
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public function isFresh($timestamp)
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{
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return file_exists($this->resource) === $this->exists;
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}
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/**
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* {@inheritdoc}
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*/
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public function serialize()
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{
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return serialize(array($this->resource, $this->exists));
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}
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/**
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* {@inheritdoc}
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*/
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public function unserialize($serialized)
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{
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list($this->resource, $this->exists) = unserialize($serialized);
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}
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}
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