3 * A Bootstrap Dht helper class
5 * @author Roland Haeder <webmaster@shipsimu.org>
7 * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2014 Core Developer Team
8 * @license GNU GPL 3.0 or any newer version
9 * @link http://www.shipsimu.org
10 * @todo Find an interface for hub helper
12 * This program is free software: you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation, either version 3 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program. If not, see <http://www.gnu.org/licenses/>.
25 class DhtBootstrapHelper extends BaseHubSystemHelper implements HelpableDht {
27 * Protected constructor
31 protected function __construct () {
32 // Call parent constructor
33 parent::__construct(__CLASS__);
36 $this->setRecipientType(NetworkPackage::NETWORK_TARGET_DHT);
39 $this->setPackageTags(array('dht_bootstrap'));
43 * Creates the helper class
45 * @return $helperInstance A prepared instance of this helper
47 public final static function createDhtBootstrapHelper () {
49 $helperInstance = new DhtBootstrapHelper();
51 // Return the prepared instance
52 return $helperInstance;
56 * Loads the announcement descriptor for parsing
58 * @param $dhtInstance An instance of a Distributable class
61 public function loadDescriptorXml (Distributable $dhtInstance) {
63 self::createDebugInstance(__CLASS__)->debugOutput('HELPER[' . __METHOD__ . ':' . __LINE__ . ']: Starting with DHT boostrap ...');
65 // Get a XML template instance
66 $templateInstance = XmlTemplateEngineFactory::createXmlTemplateEngineInstance('dht_bootstrap_template_class');
68 // Set it for later use
69 $this->setTemplateInstance($templateInstance);
71 // Read the XML descriptor
72 $templateInstance->loadXmlTemplate();
74 // Render the XML content
75 $templateInstance->renderXmlContent();
79 * Do the helped attempt by delivering a package to ourselfs
81 * @param $dhtInstance An instance of a Distributable class
84 public function sendPackage (Distributable $dhtInstance) {
86 //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('HELPER[' . __METHOD__ . ':' . __LINE__ . ']: CALLED!');
89 * Sanity check: Is the DHT in the approx. state? 'init' for bootstrap
90 * nodes and 'virgin' for all others.
92 $dhtInstance->getStateInstance()->validateDhtStateIsVirginOrInit();
94 // Compile the template, this inserts the loaded dht data into the gaps.
95 $this->getTemplateInstance()->compileTemplate();
97 // Get a singleton network package instance
98 $packageInstance = NetworkPackageFactory::createNetworkPackageInstance();
100 // Next, feed the content in. The network package class is a pipe-through class.
101 //* DEBUG: */ die(__METHOD__ . ':dhtInstance=' . print_r($dhtInstance, TRUE));
102 $packageInstance->enqueueRawDataFromTemplate($this);
105 //* NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('HELPER[' . __METHOD__ . ':' . __LINE__ . ']: EXIT!');