]> git.mxchange.org Git - hub.git/blob - application/hub/main/handler/answer-status/requests/class_RequestNodeListAnswerOkayHandler.php
cca50dab4946c2ef0af09c4fb966053169228376
[hub.git] / application / hub / main / handler / answer-status / requests / class_RequestNodeListAnswerOkayHandler.php
1 <?php
2 /**
3  * A RequestNodeListAnswerOkay handler
4  *
5  * @author              Roland Haeder <webmaster@ship-simu.org>
6  * @version             0.0.0
7  * @copyright   Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2012 Hub Developer Team
8  * @license             GNU GPL 3.0 or any newer version
9  * @link                http://www.ship-simu.org
10  *
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.
15  *
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.
20  *
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/>.
23  */
24 class RequestNodeListAnswerOkayHandler extends BaseAnserStatusHandler implements HandleableAnswerStatus, Registerable {
25         /**
26          * Protected constructor
27          *
28          * @return      void
29          */
30         protected function __construct () {
31                 // Call parent constructor
32                 parent::__construct(__CLASS__);
33
34                 // Set handler name
35                 $this->setHandlerName('request_node_list_answer_okay');
36         }
37
38         /**
39          * Creates an instance of this class
40          *
41          * @return      $handlerInstance        An instance of a HandleableMessage class
42          */
43         public final static function createRequestNodeListAnswerOkayHandler () {
44                 // Get new instance
45                 $handlerInstance = new RequestNodeListAnswerOkayHandler();
46
47                 // Return the prepared instance
48                 return $handlerInstance;
49         }
50
51         /**
52          * Handles given message data array
53          *
54          * @param       $messageData            An array of message data
55          * @param       $packageInstance        An instance of a Receivable class
56          * @return      void
57          * @throws      NodeSessionIdVerficationException       If the provided session id is not matching
58          * @todo        Do some more here: Handle karma, et cetera?
59          * @todo        Rewrite this to use DHT
60          */
61         public function handleAnswerMessageData (array $messageData, Receivable $packageInstance) {
62                 // Get a database wrapper instance
63                 $wrapperInstance = ObjectFactory::createObjectByConfiguredName('node_list_db_wrapper_class');
64
65                 // Get also a search criteria instance
66                 $searchInstance = ObjectFactory::createObjectByConfiguredName('search_criteria_class');
67
68                 // Lookup external session id/external IP/port
69                 $searchInstance->addCriteria('session_id' , $messageData[XmlRequestNodeListAnswerTemplateEngine::REQUEST_DATA_SESSION_ID]);
70
71                 // Only one entry is fine
72                 $searchInstance->setLimit(1);
73
74                 // Run the query
75                 $resultInstance = $wrapperInstance->doSelectByCriteria($searchInstance);
76
77                 // Is there an try?
78                 if (!$resultInstance->next()) {
79                         // This is fatal, caused by "stolen" session id and/or not matching IP number/port combination
80                         throw new NodeSessionIdVerficationException(array($this, $messageData), BaseHubSystem::EXCEPTION_NODE_SESSION_ID_NOT_VERIFYING);
81                 } // END - if
82
83                 // Get the node instance
84                 $nodeInstance = Registry::getRegistry()->getInstance('node');
85
86                 // Change state
87                 $nodeInstance->getStateInstance()->nodeRequestNodeListSuccessful();
88
89                 // Prepare next message ("hello" message to all returned nodes)
90                 $this->prepareNextMessage($messageData, $packageInstance);
91         }
92
93         /**
94          * Initializes configuration data from given message data array
95          *
96          * The following array is being handled over:
97          *
98          *   session-id    => aaabbbcccdddeeefff123456789
99          *   node-list     => aabb:ccdd:eeff
100          *   answer-status => OKAY
101          *   message_type  => request_node_list_answer
102          *
103          * @param       $messageData    An array with all message data
104          * @return      void
105          * @todo        0% done
106          */
107         protected function initMessageConfigurationData (array $messageData) {
108                 $this->partialStub('Please implement this method.');
109         }
110
111         /**
112          * Removes configuration data with given message data array from global
113          * configuration. For content of $messageData see method comment above.
114          *
115          * @param       $messageData    An array with all message data
116          * @return      void
117          * @todo        0% done
118          */
119         protected function removeMessageConfigurationData (array $messageData) {
120                 $this->partialStub('Please implement this method.');
121         }
122 }
123
124 // [EOF]
125 ?>