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Diffstat (limited to 'includes/jobqueue/jobs/EnqueueJob.php')
-rw-r--r-- | includes/jobqueue/jobs/EnqueueJob.php | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/includes/jobqueue/jobs/EnqueueJob.php b/includes/jobqueue/jobs/EnqueueJob.php new file mode 100644 index 00000000..46fb2aa7 --- /dev/null +++ b/includes/jobqueue/jobs/EnqueueJob.php @@ -0,0 +1,88 @@ +<?php +/** + * Router job that takes jobs and enqueues them. + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * http://www.gnu.org/copyleft/gpl.html + * + * @file + * @ingroup JobQueue + */ + +/** + * Router job that takes jobs and enqueues them to their proper queues + * + * This can be used for several things: + * - a) Making multi-job enqueues more robust by atomically enqueueing + * a single job that pushes the actual jobs (with retry logic) + * - b) Masking the latency of pushing jobs to different queues/wikis + * - c) Low-latency enqueues to push jobs from warm to hot datacenters + * + * @ingroup JobQueue + * @since 1.25 + */ +final class EnqueueJob extends Job { + /** + * Callers should use the factory methods instead + * + * @param Title $title + * @param array $params Job parameters + */ + function __construct( $title, $params ) { + parent::__construct( 'enqueue', $title, $params ); + } + + /** + * @param Job|JobSpecification|array $jobs + * @return JobRouteJob + */ + public static function newFromLocalJobs( $jobs ) { + $jobs = is_array( $jobs ) ? $jobs : array( $jobs ); + + return self::newFromJobsByWiki( array( wfWikiID() => $jobs ) ); + } + + /** + * @param array $jobsByWiki Map of (wiki => JobSpecification list) + * @return JobRouteJob + */ + public static function newFromJobsByWiki( array $jobsByWiki ) { + $jobMapsByWiki = array(); + foreach ( $jobsByWiki as $wiki => $jobs ) { + $jobMapsByWiki[$wiki] = array(); + foreach ( $jobs as $job ) { + if ( $job instanceof JobSpecification ) { + $jobMapsByWiki[$wiki][] = $job->toSerializableArray(); + } else { + throw new InvalidArgumentException( "Jobs must be of type JobSpecification." ); + } + } + } + + return new self( Title::newMainPage(), array( 'jobsByWiki' => $jobMapsByWiki ) ); + } + + public function run() { + foreach ( $this->params['jobsByWiki'] as $wiki => $jobMaps ) { + $jobSpecs = array(); + foreach ( $jobMaps as $jobMap ) { + $jobSpecs[] = JobSpecification::newFromArray( $jobMap ); + } + JobQueueGroup::singleton( $wiki )->push( $jobSpecs ); + } + + return true; + } +} |