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<?php |
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/** |
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* Contains the BaseProxy class. |
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* |
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* @copyright Copyright (c) 2017 Attila Fulop |
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* @author Attila Fulop |
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* @license MIT |
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* @since 2017-05-24 |
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* |
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*/ |
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namespace Konekt\Concord\Proxies; |
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use Konekt\Concord\Contracts\Concord; |
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use LogicException; |
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abstract class BaseProxy |
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{ |
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/** @var string */ |
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protected $contract; |
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/** @var array */ |
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protected static $instances = []; |
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/** @var Concord */ |
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public $concord; |
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/** |
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* Repository constructor. |
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* |
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* @param Concord $concord |
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*/ |
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public function __construct(Concord $concord = null) |
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{ |
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$this->concord = $concord ?: app('concord'); |
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if (empty($this->contract)) { |
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$this->contract = $this->guessContract(); |
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} |
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if (!interface_exists($this->contract)) { |
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throw new LogicException( |
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sprintf('The proxy %s has a non-existent contract class: `%s`', |
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static::class, $this->contract |
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) |
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); |
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} |
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} |
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/** |
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* This is a method where the dark word 'static' has 7 occurrences |
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* |
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* @return BaseProxy |
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*/ |
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public static function getInstance() |
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{ |
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if (!isset(static::$instances[static::class])) { |
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static::$instances[static::class] = new static(); |
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} |
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return static::$instances[static::class]; |
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} |
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/** |
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* Resets the proxy by removing the class instance. |
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* Shouldn't be used in application code. |
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* |
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*/ |
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public static function __reset() |
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{ |
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// This is only needed to ensure that in the rare case when |
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// the app instance gets replaced along with the Concord |
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// singleton in runtime, no stale concord survives it |
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if (isset(static::$instances[static::class])) { |
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unset(static::$instances[static::class]); |
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} |
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} |
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/** |
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* @param $method |
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* @param $parameters |
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* |
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* @return mixed |
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*/ |
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public static function __callStatic($method, $parameters) |
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{ |
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return call_user_func(static::getInstance()->targetClass() . '::' . $method, ...$parameters); |
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} |
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/** |
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* Try guessing the associated contract class for a concrete proxy class |
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* |
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* @return string |
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*/ |
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abstract protected function guessContract(); |
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/** |
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* Returns the resolved class |
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* |
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* @return string |
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*/ |
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abstract protected function targetClass() : string; |
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} |
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artkonekt /
concord
