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