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<?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;
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use Psr\Log\LoggerInterface;
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use Symfony\Component\Translation\Exception\InvalidArgumentException;
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use Symfony\Contracts\Translation\LocaleAwareInterface;
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use Symfony\Contracts\Translation\TranslatorInterface;
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/**
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* @author Abdellatif Ait boudad <a.aitboudad@gmail.com>
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*/
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class LoggingTranslator implements TranslatorInterface, TranslatorBagInterface, LocaleAwareInterface
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{
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private TranslatorInterface $translator;
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private LoggerInterface $logger;
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/**
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* @param TranslatorInterface&TranslatorBagInterface&LocaleAwareInterface $translator The translator must implement TranslatorBagInterface
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*/
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public function __construct(TranslatorInterface $translator, LoggerInterface $logger)
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{
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if (!$translator instanceof TranslatorBagInterface || !$translator instanceof LocaleAwareInterface) {
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throw new InvalidArgumentException(sprintf('The Translator "%s" must implement TranslatorInterface, TranslatorBagInterface and LocaleAwareInterface.', get_debug_type($translator)));
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}
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$this->translator = $translator;
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$this->logger = $logger;
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}
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public function trans(?string $id, array $parameters = [], string $domain = null, string $locale = null): string
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{
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$trans = $this->translator->trans($id = (string) $id, $parameters, $domain, $locale);
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$this->log($id, $domain, $locale);
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return $trans;
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}
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public function setLocale(string $locale)
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{
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$prev = $this->translator->getLocale();
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$this->translator->setLocale($locale);
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if ($prev === $locale) {
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return;
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}
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$this->logger->debug(sprintf('The locale of the translator has changed from "%s" to "%s".', $prev, $locale));
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}
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public function getLocale(): string
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{
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return $this->translator->getLocale();
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}
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public function getCatalogue(string $locale = null): MessageCatalogueInterface
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{
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return $this->translator->getCatalogue($locale);
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}
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public function getCatalogues(): array
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{
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return $this->translator->getCatalogues();
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}
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/**
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* Gets the fallback locales.
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*/
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public function getFallbackLocales(): array
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{
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if ($this->translator instanceof Translator || method_exists($this->translator, 'getFallbackLocales')) {
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return $this->translator->getFallbackLocales();
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}
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return [];
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}
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/**
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* Passes through all unknown calls onto the translator object.
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*/
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public function __call(string $method, array $args)
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{
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return $this->translator->{$method}(...$args);
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}
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/**
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* Logs for missing translations.
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*/
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private function log(string $id, ?string $domain, ?string $locale)
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{
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$domain ??= 'messages';
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$catalogue = $this->translator->getCatalogue($locale);
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if ($catalogue->defines($id, $domain)) {
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return;
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}
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if ($catalogue->has($id, $domain)) {
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$this->logger->debug('Translation use fallback catalogue.', ['id' => $id, 'domain' => $domain, 'locale' => $catalogue->getLocale()]);
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} else {
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$this->logger->warning('Translation not found.', ['id' => $id, 'domain' => $domain, 'locale' => $catalogue->getLocale()]);
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}
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}
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}
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