Chris@0: <?php
Chris@0: 
Chris@0: /*
Chris@0:  * This file is part of the Symfony package.
Chris@0:  *
Chris@0:  * (c) Fabien Potencier <fabien@symfony.com>
Chris@0:  *
Chris@0:  * For the full copyright and license information, please view the LICENSE
Chris@0:  * file that was distributed with this source code.
Chris@0:  */
Chris@0: 
Chris@0: namespace Symfony\Component\Translation\Loader;
Chris@0: 
Chris@0: use Symfony\Component\Translation\Exception\InvalidResourceException;
Chris@0: 
Chris@0: /**
Chris@0:  * JsonFileLoader loads translations from an json file.
Chris@0:  *
Chris@0:  * @author singles
Chris@0:  */
Chris@0: class JsonFileLoader extends FileLoader
Chris@0: {
Chris@0:     /**
Chris@0:      * {@inheritdoc}
Chris@0:      */
Chris@0:     protected function loadResource($resource)
Chris@0:     {
Chris@17:         $messages = [];
Chris@0:         if ($data = file_get_contents($resource)) {
Chris@0:             $messages = json_decode($data, true);
Chris@0: 
Chris@0:             if (0 < $errorCode = json_last_error()) {
Chris@0:                 throw new InvalidResourceException(sprintf('Error parsing JSON - %s', $this->getJSONErrorMessage($errorCode)));
Chris@0:             }
Chris@0:         }
Chris@0: 
Chris@0:         return $messages;
Chris@0:     }
Chris@0: 
Chris@0:     /**
Chris@0:      * Translates JSON_ERROR_* constant into meaningful message.
Chris@0:      *
Chris@0:      * @param int $errorCode Error code returned by json_last_error() call
Chris@0:      *
Chris@0:      * @return string Message string
Chris@0:      */
Chris@0:     private function getJSONErrorMessage($errorCode)
Chris@0:     {
Chris@0:         switch ($errorCode) {
Chris@0:             case JSON_ERROR_DEPTH:
Chris@0:                 return 'Maximum stack depth exceeded';
Chris@0:             case JSON_ERROR_STATE_MISMATCH:
Chris@0:                 return 'Underflow or the modes mismatch';
Chris@0:             case JSON_ERROR_CTRL_CHAR:
Chris@0:                 return 'Unexpected control character found';
Chris@0:             case JSON_ERROR_SYNTAX:
Chris@0:                 return 'Syntax error, malformed JSON';
Chris@0:             case JSON_ERROR_UTF8:
Chris@0:                 return 'Malformed UTF-8 characters, possibly incorrectly encoded';
Chris@0:             default:
Chris@0:                 return 'Unknown error';
Chris@0:         }
Chris@0:     }
Chris@0: }