class.ilCronCheck.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2001 ILIAS open source, University of Cologne            |
        |                                                                             |
        | This program is free software; you can redistribute it and/or               |
        | modify it under the terms of the GNU General Public License                 |
        | as published by the Free Software Foundation; either version 2              |
        | of the License, or (at your option) any later version.                      |
        |                                                                             |
        | This program is distributed in the hope that it will be useful,             |
        | but WITHOUT ANY WARRANTY; without even the implied warranty of              |
        | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
        | GNU General Public License for more details.                                |
        |                                                                             |
        | You should have received a copy of the GNU General Public License           |
        | along with this program; if not, write to the Free Software                 |
        | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
        +-----------------------------------------------------------------------------+
*/
 
 
class ilCronCheck
{
        private $possible_tasks = array();
        private $default_tasks = array();
        
        public function __construct()
        {
                global $ilLog;
 
                $this->log = $ilLog;
                
                $this->initTasks();
        }
        
        public function start()
        {
                /* MOVED TO: ilCronManager::runActiveJobs();
                global $ilSetting;
                
                $ilSetting->set('last_cronjob_start_ts', time());
                */
                
                if( $_SERVER['argc'] > 4 )
                {
                         for($i = 4; $i < $_SERVER['argc']; $i++)
                         {
                                $arg = $_SERVER['argv'][$i];
                                
                                if( !isset($this->possible_tasks[$arg]) )
                                        throw new ilException('cron-task "'.$arg.'" is not defined');
                                
                                $task = $this->possible_tasks[$arg];
                                
                                $this->runTask($task);
                         }
                }
                else foreach($this->default_tasks as $task)
                {
                        $task = $this->possible_tasks[$task];
                        
                        $this->runTask($task);
                }
        }
        
        private function runTask($task)
        {
                global $ilLog;
                
                $classlocation = $task['location'].'/classes';
                if( isset($task['sub_location']) && strlen($task['sub_location']) )
                {
                        $classlocation .= '/'.$task['sub_location'];
                }
                $classfile .= $classlocation.'/class.'.$task['classname'].'.php';
 
                $classname = $task['classname'];
                $method = $task['method'];
 
                $condition = $task['condition'];
                
                if( !file_exists($classfile) )
                        throw new ilException('class file "'.$classfile.'" does not exist');
                
                require_once($classfile);
                
                if( !class_exists($classname) )
                        throw new ilException('class "'.$classname.'" does not exist');
                
                if( !method_exists($classname, $method) )
                        throw new ilException('method "'.$classname.'::'.$method.'()" does not exist');
 
                if($condition)
                {
                        $ilLog->write("CRON - starting task: ".$classname."::".$method);
                        
                        $task = new $classname;
                        $task->$method();
                        
                        $ilLog->write("CRON - finished task: ".$classname."::".$method);
                }
                else
                {
                        $ilLog->write("CRON - task condition failed: ".$classname."::".$method);
                }
        }
        
        private function initTasks()
        {
                global $ilSetting;
 
                $this->default_tasks = array(                           
                                'ilCronValidator::check'
                );
 
                $this->possible_tasks = array(
 
                                // Start System Check
                                'ilCronValidator::check' => array(
                                        'classname'             => 'ilCronValidator',
                                        'method'                => 'check',
                                        'location'              => 'cron',
                                        'condition'             => ($ilSetting->get('systemcheck_cron') == 1)
                                )       
                );
        }       
}
?>