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<?php |
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/** |
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* PHP-DI |
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* |
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* @link http://php-di.org/ |
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* @copyright Matthieu Napoli (http://mnapoli.fr/) |
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* @license http://www.opensource.org/licenses/mit-license.php MIT (see the LICENSE file) |
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*/ |
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|
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namespace Cybot\Dependencies\DI\Definition\Source; |
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|
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use Cybot\Dependencies\DI\Definition\Definition; |
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use Cybot\Dependencies\DI\Definition\Exception\DefinitionException; |
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|
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/** |
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* Reads DI definitions from a file returning a PHP array. |
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* |
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* @author Matthieu Napoli <[email protected]> |
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*/ |
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class DefinitionFile extends DefinitionArray |
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{ |
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/** |
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* @var bool |
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*/ |
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private $initialized = false; |
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|
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/** |
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* File containing definitions, or null if the definitions are given as a PHP array. |
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* @var string|null |
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*/ |
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private $file; |
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|
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/** |
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* @param string $file File in which the definitions are returned as an array. |
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*/ |
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public function __construct($file) |
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{ |
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// Lazy-loading to improve performances |
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$this->file = $file; |
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|
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parent::__construct([]); |
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} |
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|
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/** |
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* {@inheritdoc} |
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*/ |
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public function getDefinition($name) |
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{ |
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$this->initialize(); |
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|
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return parent::getDefinition($name); |
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} |
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|
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/** |
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* Lazy-loading of the definitions. |
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* @throws DefinitionException |
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*/ |
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private function initialize() |
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{ |
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if ($this->initialized === true) { |
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return; |
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} |
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|
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$definitions = require $this->file; |
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|
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if (! is_array($definitions)) { |
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throw new DefinitionException("File {$this->file} should return an array of definitions"); |
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} |
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|
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$this->addDefinitions($definitions); |
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|
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$this->initialized = true; |
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} |
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} |
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|
