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Added line numbers to debug lines as this will become the 'norm'
[hub.git] / application / hub / main / helper / dht / class_DhtBootstrapHelper.php
1 <?php
2 /**
3  * A Bootstrap Dht helper class
4  *
5  * @author              Roland Haeder <webmaster@ship-simu.org>
6  * @version             0.0.0
7  * @copyright   Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2012 Core Developer Team
8  * @license             GNU GPL 3.0 or any newer version
9  * @link                http://www.ship-simu.org
10  * @todo                Find an interface for hub helper
11  *
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.
16  *
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.
21  *
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/>.
24  */
25 class DhtBootstrapHelper extends BaseHubSystemHelper implements HelpableDht {
26         /**
27          * Protected constructor
28          *
29          * @return      void
30          */
31         protected function __construct () {
32                 // Call parent constructor
33                 parent::__construct(__CLASS__);
34
35                 // Set recipient type
36                 $this->setRecipientType(NetworkPackage::NETWORK_TARGET_DHT);
37
38                 // Set package tags
39                 $this->setPackageTags(array('dht_bootstrap'));
40         }
41
42         /**
43          * Creates the helper class
44          *
45          * @return      $helperInstance         A prepared instance of this helper
46          */
47         public final static function createDhtBootstrapHelper () {
48                 // Get new instance
49                 $helperInstance = new DhtBootstrapHelper();
50
51                 // Return the prepared instance
52                 return $helperInstance;
53         }
54
55         /**
56          * Loads the announcement descriptor for parsing
57          *
58          * @return      void
59          */
60         public function loadDescriptorXml () {
61                 // Debug message
62                 self::createDebugInstance(__CLASS__)->debugOutput('HELPER[' . __LINE__ . ']: Starting with DHT boostrap ...');
63
64                 // Get a XML template instance
65                 $templateInstance = XmlTemplateEngineFactory::createXmlTemplateEngineInstance('dht_bootstrap_template_class');
66
67                 // Set it for later use
68                 $this->setTemplateInstance($templateInstance);
69
70                 // Read the XML descriptor
71                 $templateInstance->loadXmlTemplate();
72
73                 // Render the XML content
74                 $templateInstance->renderXmlContent();
75         }
76
77         /**
78          * Do the helped attempt by delivering a package to ourselfs
79          *
80          * @param       $dhtInstance    An instance of a Distributable class
81          * @return      void
82          */
83         public function sendPackage (Distributable $dhtInstance) {
84                 // Sanity check: Is the dht in the approx. state? (virgin)
85                 $dhtInstance->getStateInstance()->validateDhtStateIsVirgin();
86
87                 // Compile the template, this inserts the loaded dht data into the gaps.
88                 $this->getTemplateInstance()->compileTemplate();
89
90                 // Get a singleton network package instance
91                 $packageInstance = NetworkPackageFactory::createNetworkPackageInstance();
92
93                 // Next, feed the content in. The network package class is a pipe-through class.
94                 $packageInstance->enqueueRawDataFromTemplate($this, NetworkPackage::PROTOCOL_TCP);
95         }
96 }
97
98 // [EOF]
99 ?>