Eccube\Application::loadPlugin PHP Метод

    public function loadPlugin()
    {
        // プラグインディレクトリを探索.
        $basePath = $this['config']['plugin_realdir'];
        $pluginConfigs = $this->getPluginConfigAll();
        // ハンドラ優先順位をdbから持ってきてハッシュテーブルを作成
        $priorities = array();
        $handlers = $this['orm.em']->getRepository('Eccube\\Entity\\PluginEventHandler')->getHandlers();
        foreach ($handlers as $handler) {
            if ($handler->getPlugin()->getEnable() && !$handler->getPlugin()->getDelFlg()) {
                $priority = $handler->getPriority();
            } else {
                // Pluginがdisable、削除済みの場合、EventHandlerのPriorityを全て0とみなす
                $priority = \Eccube\Entity\PluginEventHandler::EVENT_PRIORITY_DISABLED;
            }
            $priorities[$handler->getPlugin()->getClassName()][$handler->getEvent()][$handler->getHandler()] = $priority;
        }
        // プラグインをロードする.
        // config.yml/event.ymlの定義に沿ってインスタンスの生成を行い, イベント設定を行う.
        foreach ($pluginConfigs as $code => $pluginConfig) {
            // 正しい形式の pluginConfig のみ読み込む
            $path = $basePath . '/' . $code;
            try {
                $this['eccube.service.plugin']->checkPluginArchiveContent($path, $pluginConfig['config']);
            } catch (\Eccube\Exception\PluginException $e) {
                $this['monolog']->warning("skip {$code} config loading. config.yml not foud or invalid.", array('path' => $path, 'original-message' => $e->getMessage()));
                continue;
            }
            $config = $pluginConfig['config'];
            $plugin = $this['orm.em']->getRepository('Eccube\\Entity\\Plugin')->findOneBy(array('code' => $config['code']));
            // const
            if (isset($config['const'])) {
                $this['config'] = $this->share($this->extend('config', function ($eccubeConfig) use($config) {
                    $eccubeConfig[$config['code']] = array('const' => $config['const']);
                    return $eccubeConfig;
                }));
            }
            if ($plugin && $plugin->getEnable() == Constant::DISABLED) {
                // プラグインが無効化されていれば読み込まない
                continue;
            }
            // Type: Event
            if (isset($config['event'])) {
                $class = '\\Plugin\\' . $config['code'] . '\\' . $config['event'];
                $eventExists = true;
                if (!class_exists($class)) {
                    $this['monolog']->warning("skip {$code} loading. event class not foud.", array('class' => $class));
                    $eventExists = false;
                }
                if ($eventExists && isset($config['event'])) {
                    $subscriber = new $class($this);
                    foreach ($pluginConfig['event'] as $event => $handlers) {
                        foreach ($handlers as $handler) {
                            if (!isset($priorities[$config['event']][$event][$handler[0]])) {
                                // ハンドラテーブルに登録されていない（ソースにしか記述されていない)ハンドラは一番後ろにする
                                $priority = \Eccube\Entity\PluginEventHandler::EVENT_PRIORITY_LATEST;
                            } else {
                                $priority = $priorities[$config['event']][$event][$handler[0]];
                            }
                            // 優先度が0のプラグインは登録しない
                            if (\Eccube\Entity\PluginEventHandler::EVENT_PRIORITY_DISABLED != $priority) {
                                $this['eccube.event.dispatcher']->addListener($event, array($subscriber, $handler[0]), $priority);
                            }
                        }
                    }
                }
            }
            // Type: ServiceProvider
            if (isset($config['service'])) {
                foreach ($config['service'] as $service) {
                    $class = '\\Plugin\\' . $config['code'] . '\\ServiceProvider\\' . $service;
                    if (!class_exists($class)) {
                        $this['monolog']->warning("skip {$code} loading. service provider class not foud.", array('class' => $class));
                        continue;
                    }
                    $this->register(new $class($this));
                }
            }
        }
    }