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symfony/src/Symfony/Components/DependencyInjection/Loader/FileLoader.php

90 lines
1.9 KiB
PHP

<?php
namespace Symfony\Components\DependencyInjection\Loader;
/*
* This file is part of the symfony framework.
*
* (c) Fabien Potencier <fabien.potencier@symfony-project.com>
*
* This source file is subject to the MIT license that is bundled
* with this source code in the file LICENSE.
*/
/**
* FileLoader is the abstract class used by all built-in loaders that are file based.
*
* @package symfony
* @subpackage dependency_injection
* @author Fabien Potencier <fabien.potencier@symfony-project.com>
*/
abstract class FileLoader extends Loader
{
protected $paths;
/**
* Constructor.
*
* @param string|array $paths A path or an array of paths where to look for resources
*/
public function __construct($paths = array())
{
if (!is_array($paths))
{
$paths = array($paths);
}
$this->paths = $paths;
}
protected function findFile($file)
{
$path = $this->getAbsolutePath($file);
if (!file_exists($path))
{
throw new \InvalidArgumentException(sprintf('The file "%s" does not exist (in: %s).', $file, implode(', ', $this->paths)));
}
return realpath($path);
}
protected function getAbsolutePath($file, $currentPath = null)
{
if (self::isAbsolutePath($file))
{
return $file;
}
else if (null !== $currentPath && file_exists($currentPath.DIRECTORY_SEPARATOR.$file))
{
return $currentPath.DIRECTORY_SEPARATOR.$file;
}
else
{
foreach ($this->paths as $path)
{
if (file_exists($path.DIRECTORY_SEPARATOR.$file))
{
return $path.DIRECTORY_SEPARATOR.$file;
}
}
}
return $file;
}
static protected function isAbsolutePath($file)
{
if ($file[0] == '/' || $file[0] == '\\' ||
(strlen($file) > 3 && ctype_alpha($file[0]) &&
$file[1] == ':' &&
($file[2] == '\\' || $file[2] == '/')
)
)
{
return true;
}
return false;
}
}