3 * A Initialization filter for nodes
5 * @author Roland Haeder <webmaster@ship-simu.org>
7 * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 Core Developer Team
8 * @license GNU GPL 3.0 or any newer version
9 * @link http://www.ship-simu.org
11 * This program is free software: you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation, either version 3 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 class NodeInitializationFilter extends BaseFilter implements Filterable {
26 * Protected constructor
30 protected function __construct () {
31 // Call parent constructor
32 parent::__construct(__CLASS__);
36 * Creates an instance of this filter class
38 * @return $filterInstance An instance of this filter class
40 public final static function createNodeInitializationFilter () {
42 $filterInstance = new NodeInitializationFilter();
44 // Return the instance
45 return $filterInstance;
49 * Executes the filter with given request and response objects
51 * @param $requestInstance An instance of a class with an Requestable interface
52 * @param $responseInstance An instance of a class with an Responseable interface
56 public function execute (Requestable $requestInstance, Responseable $responseInstance) {
57 // The default node-mode is from our configuration
58 $nodeMode = $this->getConfigInstance()->getConfigEntry('node_mode');
60 // Is the node 'mode' parameter set?
61 if ($requestInstance->isRequestElementSet('mode')) {
62 // Then use this which overrides the config entry temporarily
63 $nodeMode = $requestInstance->getRequestElement('mode');
65 // Set it for easier re-usage
66 $requestInstance->setRequestElement('mode', $nodeMode);
69 // Now convert the node-mode in a class name
70 $className = 'Hub' . $this->convertToClassName($nodeMode) . 'Node';
72 // And try to instance it
75 $nodeInstance = ObjectFactory::createObjectByName($className, array($requestInstance));
78 $appInstance = Registry::getRegistry()->getInstance('app');
80 // Set the app instance
81 $nodeInstance->setApplicationInstance($appInstance);
83 // Initialize all filters
84 $nodeInstance->initializeFilters();
85 } catch (ClassNotFoundException $e) {
86 // This exception means, the node mode is invalid.
87 // @TODO Can we rewrite this to app_die() ?
88 die('Node mode ' . $nodeMode . ' is invalid.' . "\n");
91 // Set the node instance in registry
92 Registry::getRegistry()->addInstance('node', $nodeInstance);