wikimedia / mediawiki

maintenance/showJobs.php

<?php

For compatibility and reusability of your code, PSR1 recommends that a file should introduce either new symbols (like classes, functions, etc.) or have side-effects (like outputting something, or including other files), but not both at the same time. The first symbol is defined on line 36 and the first side effect is on line 28.

/**
 * Report number of jobs currently waiting in master database.
 *
 * Based on runJobs.php
 *
 * 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 Maintenance
 * @author Tim Starling
 * @author Antoine Musso
 */

require_once __DIR__ . '/Maintenance.php';

/**
 * Maintenance script that reports the number of jobs currently waiting
 * in master database.
 *
 * @ingroup Maintenance
 */
class ShowJobs extends Maintenance {
	protected static $stateMethods = [
		'unclaimed' => 'getAllQueuedJobs',
		'delayed'   => 'getAllDelayedJobs',
		'claimed'   => 'getAllAcquiredJobs',
		'abandoned' => 'getAllAbandonedJobs',
	];

	public function __construct() {
		parent::__construct();
		$this->addDescription( 'Show number of jobs waiting in master database' );
		$this->addOption( 'group', 'Show number of jobs per job type' );
		$this->addOption( 'list', 'Show a list of all jobs instead of counts' );
		$this->addOption( 'type', 'Only show/count jobs of a given type', false, true );
		$this->addOption( 'status', 'Filter list by state (unclaimed,delayed,claimed,abandoned)' );
		$this->addOption( 'limit', 'Limit of jobs listed' );
	}

	public function execute() {
		$typeFilter = $this->getOption( 'type', '' );
		$stateFilter = $this->getOption( 'status', '' );
		$stateLimit = (float)$this->getOption( 'limit', INF );

		$group = JobQueueGroup::singleton();

		$filteredTypes = $typeFilter
			? [ $typeFilter ]
			: $group->getQueueTypes();
		$filteredStates = $stateFilter
			? array_intersect_key( self::$stateMethods, [ $stateFilter => 1 ] )
			: self::$stateMethods;

		if ( $this->hasOption( 'list' ) ) {
			$count = 0;
			foreach ( $filteredTypes as $type ) {
				$queue = $group->get( $type );
				foreach ( $filteredStates as $state => $method ) {
					foreach ( $queue->$method() as $job ) {
						/** @var Job $job */
						$this->output( $job->toString() . " status=$state\n" );
						if ( ++$count >= $stateLimit ) {
							return;
						}
					}
				}
			}
		} elseif ( $this->hasOption( 'group' ) ) {
			foreach ( $filteredTypes as $type ) {
				$queue = $group->get( $type );
				$delayed = $queue->getDelayedCount();
				$pending = $queue->getSize();
				$claimed = $queue->getAcquiredCount();
				$abandoned = $queue->getAbandonedCount();
				$active = max( 0, $claimed - $abandoned );
				if ( ( $pending + $claimed + $delayed + $abandoned ) > 0 ) {
					$this->output(
						"{$type}: $pending queued; " .
						"$claimed claimed ($active active, $abandoned abandoned); " .
						"$delayed delayed\n"
					);
				}
			}
		} else {
			$count = 0;
			foreach ( $filteredTypes as $type ) {
				$count += $group->get( $type )->getSize();
			}
			$this->output( "$count\n" );
		}
	}
}

$maintClass = "ShowJobs";
require_once RUN_MAINTENANCE_IF_MAIN;