public function getPluginManager()
    {
        if (!$this->pluginManager instanceof FilterPluginManager) {
            $this->setPluginManager(new FilterPluginManager(new ServiceManager()));
        }

        return $this->pluginManager;
    }
public function getPluginManager()
    {
        if (!$this->pluginManager instanceof FilterPluginManager) {
            $this->setPluginManager(new FilterPluginManager(new ServiceManager()));
        }

        return $this->pluginManager;
    }
public function getPluginManager ( ) { if ( ! $ this -> pluginManager instanceof FilterPluginManager ) { $ this -> setPluginManager ( new FilterPluginManager ( new ServiceManager ( ) ) ) ; } return $ this -> pluginManager ; }
Retrieve plugin manager

@return FilterPluginManager
Retrieve plugin manager