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<?php |
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declare(strict_types=1); |
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/** |
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* @copyright Copyright (c) 2023 Julius Härtl <[email protected]> |
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* |
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* @author Julius Härtl <[email protected]> |
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* |
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* @license GNU AGPL version 3 or any later version |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License as |
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* published by the Free Software Foundation, either version 3 of the |
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* License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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namespace OC\Translation; |
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use InvalidArgumentException; |
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use OC\AppFramework\Bootstrap\Coordinator; |
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use OCP\IServerContainer; |
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use OCP\PreConditionNotMetException; |
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use OCP\Translation\IDetectLanguageProvider; |
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use OCP\Translation\ITranslationManager; |
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use OCP\Translation\ITranslationProvider; |
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use Psr\Container\ContainerExceptionInterface; |
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use Psr\Container\NotFoundExceptionInterface; |
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use Psr\Log\LoggerInterface; |
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use RuntimeException; |
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use Throwable; |
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class TranslationManager implements ITranslationManager { |
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/** @var ?ITranslationProvider[] */ |
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private ?array $providers = null; |
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public function __construct( |
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private IServerContainer $serverContainer, |
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private Coordinator $coordinator, |
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private LoggerInterface $logger, |
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) { |
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} |
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public function getLanguages(): array { |
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$languages = []; |
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foreach ($this->getProviders() as $provider) { |
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$languages = array_merge($languages, $provider->getAvailableLanguages()); |
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} |
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return $languages; |
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} |
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public function translate(string $text, ?string $fromLanguage, string $toLanguage): string { |
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if (!$this->hasProviders()) { |
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throw new PreConditionNotMetException('No translation providers available'); |
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} |
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foreach ($this->getProviders() as $provider) { |
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if ($fromLanguage === null && $provider instanceof IDetectLanguageProvider) { |
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$fromLanguage = $provider->detectLanguage($text); |
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} |
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if ($fromLanguage === null) { |
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throw new InvalidArgumentException('Could not detect language'); |
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} |
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try { |
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return $provider->translate($fromLanguage, $toLanguage, $text); |
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} catch (RuntimeException $e) { |
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$this->logger->warning("Failed to translate from {$fromLanguage} to {$toLanguage}", ['exception' => $e]); |
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} |
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} |
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throw new RuntimeException('Could not translate text'); |
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} |
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public function getProviders(): array { |
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$context = $this->coordinator->getRegistrationContext(); |
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if ($this->providers !== null) { |
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return $this->providers; |
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} |
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$this->providers = []; |
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foreach ($context->getTranslationProviders() as $providerRegistration) { |
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$class = $providerRegistration->getService(); |
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try { |
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$this->providers[$class] = $this->serverContainer->get($class); |
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} catch (NotFoundExceptionInterface|ContainerExceptionInterface|Throwable $e) { |
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$this->logger->error('Failed to load translation provider ' . $class, [ |
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'exception' => $e |
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]); |
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} |
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} |
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return $this->providers; |
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} |
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public function hasProviders(): bool { |
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$context = $this->coordinator->getRegistrationContext(); |
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return !empty($context->getTranslationProviders()); |
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} |
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public function canDetectLanguage(): bool { |
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foreach ($this->getProviders() as $provider) { |
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if ($provider instanceof IDetectLanguageProvider) { |
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return true; |
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} |
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} |
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return false; |
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} |
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} |
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nextcloud /
server
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