vendor/symfony/translation/Loader/YamlFileLoader.php

   1 <?php
   2
   3 /*
   4  * This file is part of the Symfony package.
   5  *
   6  * (c) Fabien Potencier <fabien@symfony.com>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Symfony\Component\Translation\Loader;
  13
  14 use Symfony\Component\Translation\Exception\InvalidResourceException;
  15 use Symfony\Component\Translation\Exception\LogicException;
  16 use Symfony\Component\Yaml\Parser as YamlParser;
  17 use Symfony\Component\Yaml\Exception\ParseException;
  18
  19 /**
  20  * YamlFileLoader loads translations from Yaml files.
  21  *
  22  * @author Fabien Potencier <fabien@symfony.com>
  23  */
  24 class YamlFileLoader extends FileLoader
  25 {
  26     private $yamlParser;
  27
  28     /**
  29      * {@inheritdoc}
  30      */
  31     protected function loadResource($resource)
  32     {
  33         if (null === $this->yamlParser) {
  34             if (!class_exists('Symfony\Component\Yaml\Parser')) {
  35                 throw new LogicException('Loading translations from the YAML format requires the Symfony Yaml component.');
  36             }
  37
  38             $this->yamlParser = new YamlParser();
  39         }
  40
  41         try {
  42             $messages = $this->yamlParser->parse(file_get_contents($resource));
  43         } catch (ParseException $e) {
  44             throw new InvalidResourceException(sprintf('Error parsing YAML, invalid file "%s"', $resource), 0, $e);
  45         }
  46
  47         return $messages;
  48     }
  49 }