<?php
/**
 * A Node DHT facade class
 *
 * @author		Roland Haeder <webmaster@ship-simu.org>
 * @version		0.0.0
 * @copyright	Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2012 Hub Developer Team
 * @license		GNU GPL 3.0 or any newer version
 * @link		http://www.ship-simu.org
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
class NodeDhtFacade extends BaseDht implements Distributable, Registerable {
	/**
	 * Protected constructor
	 *
	 * @return	void
	 */
	protected function __construct () {
		// Call parent constructor
		parent::__construct(__CLASS__);
	}

	/**
	 * Creates an instance of this class
	 *
	 * @return	$dhtInstance	An instance of a Distributable class
	 */
	public final static function createNodeDhtFacade () {
		// Get new instance
		$dhtInstance = new NodeDhtFacade();

		// Get a database wrapper instance
		$wrapperInstance = DatabaseWrapperFactory::createWrapperByConfiguredName('node_dht_db_wrapper_class');

		// Set it in this class
		$dhtInstance->setWrapperInstance($wrapperInstance);

		// Return the prepared instance
		return $dhtInstance;
	}

	/**
	 * Initializes the distributed hash table (DHT)
	 *
	 * @return	void
	 * @todo	Please implement this method
	 */
	public function initDht () {
		// Is the local node registered?
		if ($this->getWrapperInstance()->isLocalNodeRegistered()) {
			// Then only update session id
			$this->getWrapperInstance()->updateLocalNode();
		} else {
			// No, so register it
			$this->getWrapperInstance()->registerLocalNode();
		}
	}
}

// [EOF]
?>