silverstripe-fulltextsearch/code/search/processors/SearchUpdateQueuedJobProcessor.php

<?php

if(!interface_exists('QueuedJob')) return;

class SearchUpdateQueuedJobProcessor extends SearchUpdateBatchedProcessor implements QueuedJob {

	/**
	 * The QueuedJob queue to use when processing updates
	 * @config
	 * @var int
	 */
	private static $reindex_queue = 2; // QueuedJob::QUEUED;

	protected $messages = array();

	public function triggerProcessing() {
		parent::triggerProcessing();
		singleton('QueuedJobService')->queueJob($this);
	}

	public function getTitle() {
		return "FullTextSearch Update Job";
	}

	public function getSignature() {
		return md5(get_class($this) . time() . mt_rand(0, 100000));
	}

	public function getJobType() {
		return Config::inst()->get('SearchUpdateQueuedJobProcessor', 'reindex_queue');
	}

	public function jobFinished() {
		return $this->currentBatch >= count($this->batches);
	}

	public function setup() {
		// NOP
	}

	public function prepareForRestart() {
		// NOP
	}

	public function afterComplete() {
		// Once indexing is complete, commit later in order to avoid solr limits
		// see http://stackoverflow.com/questions/7512945/how-to-fix-exceeded-limit-of-maxwarmingsearchers
		SearchUpdateCommitJobProcessor::queue();
	}

	public function getJobData() {
		$data = new stdClass();
		$data->totalSteps = count($this->batches);
		$data->currentStep = $this->currentBatch;
		$data->isComplete = $this->jobFinished();
		$data->messages = $this->messages;

		$data->jobData = new stdClass();
		$data->jobData->batches = $this->batches;
		$data->jobData->currentBatch = $this->currentBatch;

		return $data;
	}

	public function setJobData($totalSteps, $currentStep, $isComplete, $jobData, $messages) {
		$this->isComplete = $isComplete;
		$this->messages = $messages;

		$this->batches = $jobData->batches;
		$this->currentBatch = $jobData->currentBatch;
	}

	public function addMessage($message, $severity='INFO') {
		$severity = strtoupper($severity);
		$this->messages[] = '[' . date('Y-m-d H:i:s') . "][$severity] $message";
	}

	public function process() {
		$result = parent::process();

		if($this->jobFinished()) {
			$this->addMessage("All batched updates complete. Queuing commit job");
		}

		return $result;
	}
}