gnu-social/lib/queuemanager.php

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
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*
* Abstract class for queue managers
*
* PHP version 5
*
* LICENCE: This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category QueueManager
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @author Sarven Capadisli <csarven@status.net>
* @copyright 2009 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
class QueueManager
{
static $qm = null;
static function get()
{
if (empty(self::$qm)) {
if (Event::handle('StartNewQueueManager', array(&self::$qm))) {
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$enabled = common_config('queue', 'enabled');
$type = common_config('queue', 'subsystem');
if (!$enabled) {
// does everything immediately
self::$qm = new UnQueueManager();
} else {
switch ($type) {
case 'db':
self::$qm = new DBQueueManager();
break;
case 'stomp':
self::$qm = new StompQueueManager();
break;
default:
throw new ServerException("No queue manager class for type '$type'");
}
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}
}
}
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return self::$qm;
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}
function enqueue($object, $queue)
{
throw ServerException("Unimplemented function 'enqueue' called");
}
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function service($queue, $handler)
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{
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throw ServerException("Unimplemented function 'service' called");
}
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}