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                <?php  | 
            
                            
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                namespace SilverStripe\FullTextSearch\Solr\Reindex\Jobs;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Symbiote\QueuedJobs\Services\QueuedJob;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                if (!interface_exists(QueuedJob::class)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Represents a queuedjob which invokes a reindex  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class SolrReindexQueuedJob extends SolrReindexQueuedJobBase  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Size of each batch to run  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var int  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected $batchSize;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Name of devtask Which invoked this  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Not necessary for re-index processing performed entirely by queuedjobs  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected $taskName;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * List of classes to filter  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @var array|string  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected $classes;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function __construct($batchSize = null, $taskName = null, $classes = null)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->batchSize = $batchSize;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->taskName = $taskName;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->classes = $classes;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        parent::__construct();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function getJobData()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $data = parent::getJobData();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // Custom data  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $data->jobData->batchSize = $this->batchSize;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $data->jobData->taskName = $this->taskName;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $data->jobData->classes = $this->classes;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $data;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function setJobData($totalSteps, $currentStep, $isComplete, $jobData, $messages)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        parent::setJobData($totalSteps, $currentStep, $isComplete, $jobData, $messages);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // Custom data  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->batchSize = $jobData->batchSize;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->taskName = $jobData->taskName;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->classes = $jobData->classes;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function getTitle()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return 'Solr Reindex Job';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    public function process()  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $logger = $this->getLogger();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if ($this->jobFinished()) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $logger->notice("reindex already complete"); | 
            
            
                                                                        
                            
            
                                    
            
            
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                            return;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        // Send back to processor  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $logger->info("Beginning init of reindex"); | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $this  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            ->getHandler()  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            ->runReindex($logger, $this->batchSize, $this->taskName, $this->classes);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $logger->info("Completed init of reindex"); | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $this->isComplete = true;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Get size of batch  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return int  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function getBatchSize()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $this->batchSize;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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The PSR-1: Basic Coding Standard recommends that a file should either introduce new symbols, that is classes, functions, constants or similar, or have side effects. Side effects are anything that executes logic, like for example printing output, changing ini settings or writing to a file.
The idea behind this recommendation is that merely auto-loading a class should not change the state of an application. It also promotes a cleaner style of programming and makes your code less prone to errors, because the logic is not spread out all over the place.
To learn more about the PSR-1, please see the PHP-FIG site on the PSR-1.