<?php
/**
 * A TaskHandlerInitializer filter for hubs
 *
 * @author		Roland Haeder <webmaster@shipsimu.org>
 * @version		0.0.0
 * @copyright	Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2014 Hub Developer Team
 * @license		GNU GPL 3.0 or any newer version
 * @link		http://www.shipsimu.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 NodeTaskHandlerInitializerFilter extends BaseNodeFilter implements Filterable {
	/**
	 * Protected constructor
	 *
	 * @return	void
	 */
	protected function __construct () {
		// Call parent constructor
		parent::__construct(__CLASS__);
	}

	/**
	 * Creates an instance of this filter class
	 *
	 * @return	$filterInstance		An instance of this filter class
	 */
	public static final function createNodeTaskHandlerInitializerFilter () {
		// Get a new instance
		$filterInstance = new NodeTaskHandlerInitializerFilter();

		// Return the instance
		return $filterInstance;
	}

	/**
	 * Executes the filter with given request and response objects
	 *
	 * @param	$requestInstance	An instance of a class with an Requestable interface
	 * @param	$responseInstance	An instance of a class with an Responseable interface
	 * @return	void
	 * @throws	FilterChainException	If the filter chain needs to be interrupted
	 * @todo	Maybe some more tasks needs to be added?
	 */
	public function execute (Requestable $requestInstance, Responseable $responseInstance) {
		// Get node instance
		$nodeInstance = NodeObjectFactory::createNodeInstance();

		// Get a new task handler instance
		$handlerInstance = ObjectFactory::createObjectByConfiguredName('task_handler_class');

		// Prepare a package-tags initialization task for the listeners
		$taskInstance = ObjectFactory::createObjectByConfiguredName('node_package_tags_init_task_class');

		// Register it
		$handlerInstance->registerTask('package_tags_init', $taskInstance);

		// Generate package writer task
		$taskInstance = ObjectFactory::createObjectByConfiguredName('node_package_writer_task_class');

		// Register it as well
		$handlerInstance->registerTask('network_package_writer', $taskInstance);

		// Generate package reader task
		$taskInstance = ObjectFactory::createObjectByConfiguredName('node_package_reader_task_class', array($nodeInstance->getListenerPoolInstance()));

		// Network package reader, needs to be delayed a little
		$handlerInstance->registerTask('network_package_reader', $taskInstance);

		// Generate socket listener task
		$taskInstance = ObjectFactory::createObjectByConfiguredName('node_socket_listener_task_class');

		// Network package reader, needs to be delayed a little
		$handlerInstance->registerTask('socket_listener', $taskInstance);

		// Generate package decoder task
		$taskInstance = ObjectFactory::createObjectByConfiguredName('node_package_decoder_task_class');

		// Register it as well
		$handlerInstance->registerTask('package_decoder', $taskInstance);

		// Generate chunk assembler task
		$taskInstance = ObjectFactory::createObjectByConfiguredName('node_chunk_assembler_task_class');

		// Register it as well
		$handlerInstance->registerTask('chunk_assembler', $taskInstance);

		// Generate DHT initialization task
		$taskInstance = ObjectFactory::createObjectByConfiguredName('node_dht_init_task_class');

		// Register it as well
		$handlerInstance->registerTask('dht_init', $taskInstance);

		// Generate DHT query task
		$taskInstance = ObjectFactory::createObjectByConfiguredName('node_dht_query_task_class');

		// Register it as well
		$handlerInstance->registerTask('dht_query', $taskInstance);

		// Generate DHT publication-check task
		$taskInstance = ObjectFactory::createObjectByConfiguredName('node_dht_publication_check_task_class');

		// Register it as well
		$handlerInstance->registerTask('dht_check_publication', $taskInstance);

		// Generate DHT publication task
		$taskInstance = ObjectFactory::createObjectByConfiguredName('node_dht_publication_task_class');

		// Register it as well
		$handlerInstance->registerTask('dht_publication', $taskInstance);

		// Prepare a self-test task for the listeners
		$taskInstance = ObjectFactory::createObjectByConfiguredName('node_selfconnect_task_class');

		// Register it
		$handlerInstance->registerTask('self_connect', $taskInstance);

		// Prepare a update-check task
		$taskInstance = ObjectFactory::createObjectByConfiguredName('node_update_check_task_class');

		// Register it
		$handlerInstance->registerTask('update_check', $taskInstance);

		// Get the list instance here
		$listInstance = $nodeInstance->getListenerPoolInstance()->getPoolEntriesInstance();

		// Prepare a ping task
		$taskInstance = ObjectFactory::createObjectByConfiguredName('node_ping_task_class', array($listInstance));

		// Register it
		$handlerInstance->registerTask('ping', $taskInstance);

		// Put the task handler in registry
		Registry::getRegistry()->addInstance('task_handler', $handlerInstance);

		/*
		 * Allow extra node-depending tasks, e.g. the bootstrapper node needs
		 * booting its DHT. DHTs are decentralized and are working on
		 * peer-to-peer basis.
		 */
		$nodeInstance->addExtraTasks($handlerInstance);
	}
}

// [EOF]
?>