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<?php |
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/** |
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* Bright Nucleus Config Component. |
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* |
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* @package BrightNucleus\Config |
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* @author Alain Schlesser <[email protected]> |
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* @license MIT |
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* @link http://www.brightnucleus.com/ |
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* @copyright 2016-2017 Alain Schlesser, Bright Nucleus |
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*/ |
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namespace BrightNucleus\Config\Loader; |
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use BrightNucleus\Config\Exception\FailedToLoadConfigException; |
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use Exception; |
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/** |
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* Class JSONLoader. |
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* |
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* @since 0.1.0 |
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* |
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* @package BrightNucleus\Config\Loader |
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* @author Pascal Knecht <[email protected]> |
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*/ |
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class JSONLoader extends AbstractLoader |
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{ |
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/** |
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* Check whether the loader is able to load a given URI. |
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* |
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* @since 0.4.0 |
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* |
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* @param string $uri URI to check. |
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* |
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* @return bool Whether the loader can load the given URI. |
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*/ |
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public static function canLoad($uri) |
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{ |
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$path = pathinfo($uri); |
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return 'json' === mb_strtolower($path['extension']); |
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} |
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/** |
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* Load the contents of an resource identified by an URI. |
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* |
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* @since 0.4.0 |
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* |
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* @param string $uri URI of the resource. |
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* |
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* @return array|null Raw data loaded from the resource. Null if no data found. |
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* @throws FailedToLoadConfigException If the resource could not be loaded. |
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*/ |
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protected function loadUri($uri) |
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{ |
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try { |
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ob_start(); |
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$data = json_decode(file_get_contents($uri), true); |
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ob_end_clean(); |
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return (array)$data; |
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} catch (Exception $exception) { |
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throw new FailedToLoadConfigException( |
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sprintf( |
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_('Could not include JSON config file "%1$s". Reason: "%2$s".'), |
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$uri, |
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$exception->getMessage() |
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), |
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$exception->getCode(), |
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$exception |
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); |
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} |
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} |
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/** |
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* Validate and return the URI. |
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* |
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* @since 0.4.0 |
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* |
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* @param string $uri URI of the resource to load. |
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* |
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* @return string Validated URI. |
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* @throws FailedToLoadConfigException If the URI does not exist or is not readable. |
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*/ |
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protected function validateUri($uri) |
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{ |
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if (! is_readable($uri)) { |
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throw new FailedToLoadConfigException( |
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sprintf( |
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_('The requested JSON config file "%1$s" does not exist or is not readable.'), |
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$uri |
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) |
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); |
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} |
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return $uri; |
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} |
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} |
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