application/hub/main/tasks/network/class_NetworkPackageReaderTask.php

   1 <?php
   2 /**
   3  * A NetworkPackageReader task
   4  *
   5  * @author              Roland Haeder <webmaster@ship-simu.org>
   6  * @version             0.0.0
   7  * @copyright   Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2011 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 NetworkPackageReaderTask extends BaseTask implements Taskable, Visitable {
  25         /**
  26          * Protected constructor
  27          *
  28          * @return      void
  29          */
  30         protected function __construct () {
  31                 // Call parent constructor
  32                 parent::__construct(__CLASS__);
  33         }
  34
  35         /**
  36          * Creates an instance of this class
  37          *
  38          * @param       $poolInstance   An instance of a PoolableListener class
  39          * @return      $taskInstance   An instance of a Taskable/Visitable class
  40          */
  41         public static final function createNetworkPackageReaderTask (PoolableListener $poolInstance) {
  42                 // Get new instance
  43                 $taskInstance = new NetworkPackageReaderTask();
  44
  45                 // Set the listener instance here
  46                 $taskInstance->setListenerPoolInstance($poolInstance);
  47
  48                 // Get a singleton network package instance
  49                 $packageInstance = NetworkPackageFactory::createNetworkPackageInstance();
  50
  51                 // And set it in this task
  52                 $taskInstance->setPackageInstance($packageInstance);
  53
  54                 // Return the prepared instance
  55                 return $taskInstance;
  56         }
  57
  58         /**
  59          * Accepts the visitor to process the visit "request"
  60          *
  61          * @param       $visitorInstance        An instance of a Visitor class
  62          * @return      void
  63          * @todo        Also visit some sub-objects?
  64          */
  65         public function accept (Visitor $visitorInstance) {
  66                 // Visit this task
  67                 $visitorInstance->visitTask($this);
  68         }
  69
  70         /**
  71          * Executes the task
  72          *
  73          * @return      void
  74          */
  75         public function executeTask () {
  76                 // Do we have something to handle?
  77                 if ($this->getPackageInstance()->isNewPackageArrived()) {
  78                         // Okay, then handle newly arrived package
  79                         $this->getPackageInstance()->handleNewlyArrivedPackage();
  80                 } elseif ($this->getPackageInstance()->isIncomingDecodedDataHandled()) {
  81                         /*
  82                          * We have handled decoded data so we should validate it, if we have
  83                          * all chunks/fragments together, and assemble it into an abstract
  84                          * network package.
  85                          */
  86                         $this->getPackageInstance()->assembleDecodedDataToPackage();
  87                 } elseif ($this->getPackageInstance()->isNewRawDataPending($this->getListenerPoolInstance())) {
  88                         // We have to handle raw data from the socket
  89                         $this->getPackageInstance()->handleIncomingDecodedData();
  90                 } // END - if
  91         }
  92 }
  93
  94 // [EOF]
  95 ?>