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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\Bundle\FrameworkBundle\Templating\Loader;
- use Symfony\Component\Config\FileLocatorInterface;
- use Symfony\Component\Templating\TemplateReferenceInterface;
- /**
- * TemplateLocator locates templates in bundles.
- *
- * @author Fabien Potencier <fabien@symfony.com>
- */
- class TemplateLocator implements FileLocatorInterface
- {
- protected $locator;
- protected $cache;
- private $cacheHits = array();
- /**
- * @param FileLocatorInterface $locator A FileLocatorInterface instance
- * @param string $cacheDir The cache path
- */
- public function __construct(FileLocatorInterface $locator, $cacheDir = null)
- {
- if (null !== $cacheDir && is_file($cache = $cacheDir.'/templates.php')) {
- $this->cache = require $cache;
- }
- $this->locator = $locator;
- }
- /**
- * Returns a full path for a given file.
- *
- * @return string The full path for the file
- */
- protected function getCacheKey($template)
- {
- return $template->getLogicalName();
- }
- /**
- * Returns a full path for a given file.
- *
- * @param TemplateReferenceInterface $template A template
- * @param string $currentPath Unused
- * @param bool $first Unused
- *
- * @return string The full path for the file
- *
- * @throws \InvalidArgumentException When the template is not an instance of TemplateReferenceInterface
- * @throws \InvalidArgumentException When the template file can not be found
- */
- public function locate($template, $currentPath = null, $first = true)
- {
- if (!$template instanceof TemplateReferenceInterface) {
- throw new \InvalidArgumentException('The template must be an instance of TemplateReferenceInterface.');
- }
- $key = $this->getCacheKey($template);
- if (isset($this->cacheHits[$key])) {
- return $this->cacheHits[$key];
- }
- if (isset($this->cache[$key])) {
- return $this->cacheHits[$key] = realpath($this->cache[$key]) ?: $this->cache[$key];
- }
- try {
- return $this->cacheHits[$key] = $this->locator->locate($template->getPath(), $currentPath);
- } catch (\InvalidArgumentException $e) {
- throw new \InvalidArgumentException(sprintf('Unable to find template "%s" : "%s".', $template, $e->getMessage()), 0, $e);
- }
- }
- }
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