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