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[hub.git] / application / hub / main / commands / console / class_HubConsoleCruncherCommand.php
1 <?php
2 /**
3  * A command for the 'cruncher client' routine
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 HubConsoleCruncherCommand extends BaseCommand implements Commandable {
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       $resolverInstance       An instance of a command resolver class
39          * @return      $commandInstance        An instance a prepared command class
40          */
41         public static final function createHubConsoleCruncherCommand (CommandResolver $resolverInstance) {
42                 // Get new instance
43                 $commandInstance = new HubConsoleCruncherCommand();
44
45                 // Set the application instance
46                 $commandInstance->setResolverInstance($resolverInstance);
47
48                 // Return the prepared instance
49                 return $commandInstance;
50         }
51
52         /**
53          * Executes the given command with given request and response objects
54          *
55          * @param       $requestInstance        An instance of a class with an Requestable interface
56          * @param       $responseInstance       An instance of a class with an Responseable interface
57          * @return      void
58          * @todo        Try to create a CruncherActivationTask or so
59          */
60         public function execute (Requestable $requestInstance, Responseable $responseInstance) {
61                 // Get a registry and the application instance from it
62                 $applicationInstance = Registry::getRegistry()->getInstance('app');
63
64                 // ----------------------- Bootstrapping phase ------------------------
65                 // Try to bootstrap the node and pass the request instance to it for
66                 // extra arguments which mostly override config entries or enable special
67                 // features within the hub (none is ready at this development stage)
68                 $this->debugOutput('BOOTSTRAP: Beginning with bootstrap...');
69                 $applicationInstance->getControllerInstance()->executeBootstrapFilters($requestInstance, $responseInstance);
70                 $this->debugOutput('BOOTSTRAP: Bootstrap finished.');
71
72                 // Get cruncher instance
73                 $cruncherInstance = Registry::getRegistry()->getInstance('cruncher');
74
75                 // Add some cruncher-specific filters, e.g. announcement
76                 $cruncherInstance->addExtraCruncherFilters();
77
78                 // Get task handler instance
79                 $handlerInstance = Registry::getRegistry()->getInstance('task');
80
81                 // Debug message
82                 $this->debugOutput('MAIN: --- Entering main loop. ---');
83
84                 // ----------------------------- Main loop ----------------------------
85                 // This is the main loop. Queried calls should come back here very fast
86                 // so the whole application runs on nice speed. This while-loop goes
87                 // until the cruncher is no longer active or all tasks are killed.
88                 while ($handlerInstance->hasTasksLeft()) {
89                         // Handle all tasks here
90                         $handlerInstance->handleTasks();
91                 } // END - while
92
93                 // Debug message
94                 $this->debugOutput('MAIN: --- Leaving main loop. ---');
95         }
96
97         /**
98          * Adds extra filters to the given controller instance
99          *
100          * @param       $controllerInstance             A controller instance
101          * @param       $requestInstance                An instance of a class with an Requestable interface
102          * @return      void
103          * @todo        Should we add some more filters?
104          */
105         public function addExtraFilters (Controller $controllerInstance, Requestable $requestInstance) {
106                 // Add pre filters
107                 $controllerInstance->addPreFilter(ObjectFactory::createObjectByConfiguredName('cruncher_php_requirements_filter'));
108                 $controllerInstance->addPreFilter(ObjectFactory::createObjectByConfiguredName('cruncher_initializer_filter'));
109                 $controllerInstance->addPreFilter(ObjectFactory::createObjectByConfiguredName('cruncher_welcome_teaser_filter'));
110
111                 // Add bootstrap filters
112                 $controllerInstance->addBootstrapFilter(ObjectFactory::createObjectByConfiguredName('cruncher_bootstrap_task_handler_initializer_filter'));
113                 //$controllerInstance->addBootstrapFilter(ObjectFactory::createObjectByConfiguredName('hub_bootstrap_generate_hubid_filter'));
114
115                 // Add shutdown filters
116                 //$controllerInstance->addShutdownFilter(ObjectFactory::createObjectByConfiguredName('hub_shutdown_task_handler_filter'));
117
118                 // This is the last generic filter
119                 $controllerInstance->addShutdownFilter(ObjectFactory::createObjectByConfiguredName('hub_shutdown_cruncher_filter'));
120         }
121 }
122
123 // [EOF]
124 ?>