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<?php |
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/** |
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* Phossa Project |
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* |
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* PHP version 5.4 |
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* |
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* @category Library |
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* @package Phossa2\Shared |
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* @copyright Copyright (c) 2016 phossa.com |
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* @license http://mit-license.org/ MIT License |
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* @link http://www.phossa.com/ |
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*/ |
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/*# declare(strict_types=1); */ |
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namespace Phossa2\Shared\Extension; |
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use Phossa2\Shared\Message\Message; |
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use Phossa2\Shared\Exception\LogicException; |
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use Phossa2\Shared\Exception\BadMethodCallException; |
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/** |
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* ExtensionAwareTrait |
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* |
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* @package Phossa2\Shared |
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* @author Hong Zhang <[email protected]> |
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* @see ExtensionAwareInterface |
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* @version 2.0.0 |
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* @since 2.0.0 added |
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*/ |
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trait ExtensionAwareTrait |
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{ |
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/** |
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* Methods provided by extensions |
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* |
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* @var array |
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* @access protected |
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*/ |
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protected $extension_methods = []; |
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/** |
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* @param string $method |
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* @param array $arguments |
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* @return mixed |
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* @throws BadMethodCallException if method not found |
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* @access public |
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*/ |
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public function __call($method, array $arguments) |
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{ |
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if ($this->hasExtensionMethod($method)) { |
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return $this->runExtension($method, $arguments); |
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} |
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throw new BadMethodCallException( |
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Message::get(Message::MSG_METHOD_NOTFOUND, $method), |
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Message::MSG_METHOD_NOTFOUND |
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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 addExtension( |
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ExtensionInterface $ext, |
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/*# bool */ $forceOverride = false |
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) { |
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foreach ($ext->methodsAvailable() as $method) { |
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if (isset($this->extension_methods[$method]) && |
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!$forceOverride) { |
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throw new LogicException( |
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Message::get(Message::MSG_EXTENSION_METHOD, $method), |
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Message::MSG_EXTENSION_METHOD |
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); |
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} |
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$this->extension_methods[$method] = $ext; |
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} |
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return $this; |
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} |
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/** |
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* Is this method from extensions ? |
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* |
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* @param string $method |
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* @return bool |
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* @access protected |
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*/ |
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protected function hasExtensionMethod(/*# string */ $method)/*# : bool */ |
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{ |
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return isset($this->extension_methods[$method]); |
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} |
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/** |
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* Include this in server's __call() |
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* |
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* @param string $method |
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* @param array $args |
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* @return mixed |
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* @access protected |
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*/ |
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protected function runExtension(/*# string */ $method, array $args) |
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{ |
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/* @var $ext ExtensionInterface */ |
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$ext = $this->extension_methods[$method]; |
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// boot extension if not yet |
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$ext->boot($this); |
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// execute extesion method |
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return call_user_func_array([$ext, $method], $args); |
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} |
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} |
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