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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace SilverStripe\QueuedJobs\Tasks\Engines;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use SilverStripe\Control\Director;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use SilverStripe\Core\Convert;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use SilverStripe\QueuedJobs\DataObjects\QueuedJobDescriptor;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Class BaseRunner  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @author dmooyman  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                 */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                class BaseRunner  | 
            
            
                                                                        
                            
            
                                    
            
            
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                { | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * Returns an instance of the QueuedJobService.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @return QueuedJobService  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function getService()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return singleton('SilverStripe\\QueuedJobs\\Services\\QueuedJobService'); | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * Write in a format expected by the output medium (CLI/HTML).  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param string $line Line to be written out, without the newline character.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param null|string $prefix  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function writeLogLine($line, $prefix = null)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (!$prefix) { | 
            
                            
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                            $prefix = '[' . date('Y-m-d H:i:s') . '] '; | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (Director::is_cli()) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            echo $prefix . $line . "\n";  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            echo Convert::raw2xml($prefix . $line) . "<br>";  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * Logs the status of the queued job descriptor.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param bool|null|QueuedJobDescriptor $descriptor  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param string $queue  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function logDescriptorStatus($descriptor, $queue)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (is_null($descriptor)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->writeLogLine('No new jobs'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($descriptor === false) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->writeLogLine('Job is still running on ' . $queue); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($descriptor instanceof QueuedJobDescriptor) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->writeLogLine('Running ' . $descriptor->JobTitle . ' and others from ' . $queue . '.'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * Logs the number of current jobs per queue  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function listJobs()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $service = $this->getService();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        for ($i = 1; $i <= 3; $i++) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $jobs = $service->getJobList($i);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $num = $jobs ? $jobs->Count() : 0;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->writeLogLine('Found ' . $num . ' jobs for mode ' . $i . '.'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                        
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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In PHP, under loose comparison (like
==, or!=, orswitchconditions), values of different types might be equal.For
stringvalues, the empty string''is a special case, in particular the following results might be unexpected: