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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\Config\Resource\DirectoryResource;
use Symfony\Component\Translation\Exception\InvalidResourceException;
use Symfony\Component\Translation\Exception\NotFoundResourceException;
use Symfony\Component\Translation\MessageCatalogue;
/**
* IcuResFileLoader loads translations from a resource bundle.
*
* @author stealth35
*/
class IcuResFileLoader implements LoaderInterface
{
/**
* {@inheritdoc}
*/
public function load($resource, $locale, $domain = 'messages')
{
if (!stream_is_local($resource)) {
throw new InvalidResourceException(sprintf('This is not a local file "%s".', $resource));
}
if (!is_dir($resource)) {
throw new NotFoundResourceException(sprintf('File "%s" not found.', $resource));
}
try {
$rb = new \ResourceBundle($locale, $resource);
} catch (\Exception $e) {
// HHVM compatibility: constructor throws on invalid resource
$rb = null;
}
if (!$rb) {
throw new InvalidResourceException(sprintf('Cannot load resource "%s"', $resource));
} elseif (intl_is_failure($rb->getErrorCode())) {
throw new InvalidResourceException($rb->getErrorMessage(), $rb->getErrorCode());
}
$messages = $this->flatten($rb);
$catalogue = new MessageCatalogue($locale);
$catalogue->add($messages, $domain);
if (class_exists('Symfony\Component\Config\Resource\DirectoryResource')) {
$catalogue->addResource(new DirectoryResource($resource));
}
return $catalogue;
}
/**
* Flattens an ResourceBundle.
*
* The scheme used is:
* key { key2 { key3 { "value" } } }
* Becomes:
* 'key.key2.key3' => 'value'
*
* This function takes an array by reference and will modify it
*
* @param \ResourceBundle $rb The ResourceBundle that will be flattened
* @param array $messages Used internally for recursive calls
* @param string $path Current path being parsed, used internally for recursive calls
*
* @return array the flattened ResourceBundle
*/
protected function flatten(\ResourceBundle $rb, array &$messages = [], $path = null)
{
foreach ($rb as $key => $value) {
$nodePath = $path ? $path.'.'.$key : $key;
if ($value instanceof \ResourceBundle) {
$this->flatten($value, $messages, $nodePath);
} else {
$messages[$nodePath] = $value;
}
}
return $messages;
}
}
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