forked from GNUsocial/gnu-social
84 lines
2.0 KiB
PHP
84 lines
2.0 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\Translation\Extractor;
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/**
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* Base class used by classes that extract translation messages from files.
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*
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* @author Marcos D. Sánchez <marcosdsanchez@gmail.com>
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*/
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abstract class AbstractFileExtractor
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{
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/**
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* @param string|array $resource files, a file or a directory
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*
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* @return array
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*/
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protected function extractFiles($resource)
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{
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if (is_array($resource) || $resource instanceof \Traversable) {
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$files = array();
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foreach ($resource as $file) {
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if ($this->canBeExtracted($file)) {
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$files[] = $this->toSplFileInfo($file);
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}
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}
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} elseif (is_file($resource)) {
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$files = $this->canBeExtracted($resource) ? array($this->toSplFileInfo($resource)) : array();
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} else {
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$files = $this->extractFromDirectory($resource);
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}
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return $files;
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}
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/**
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* @param string $file
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*
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* @return \SplFileInfo
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*/
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private function toSplFileInfo($file)
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{
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return ($file instanceof \SplFileInfo) ? $file : new \SplFileInfo($file);
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}
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/**
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* @param string $file
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*
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* @return bool
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*
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* @throws \InvalidArgumentException
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*/
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protected function isFile($file)
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{
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if (!is_file($file)) {
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throw new \InvalidArgumentException(sprintf('The "%s" file does not exist.', $file));
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}
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return true;
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}
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/**
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* @param string $file
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*
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* @return bool
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*/
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abstract protected function canBeExtracted($file);
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/**
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* @param string|array $resource files, a file or a directory
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*
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* @return array files to be extracted
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*/
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abstract protected function extractFromDirectory($resource);
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}
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