<?php /* * StatusNet - the distributed open-source microblogging tool * Copyright (C) 2008, 2009, StatusNet, Inc. * * 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/>. */ if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); } /** * Base class for queue handlers. * * As extensions of the Daemon class, each queue handler has the ability * to launch itself in the background, at which point it'll pass control * to the configured QueueManager class to poll for updates. * * Subclasses must override at least the following methods: * - transport * - handle_notice */ class DistribQueueHandler { /** * Return transport keyword which identifies items this queue handler * services; must be defined for all subclasses. * * Must be 8 characters or less to fit in the queue_item database. * ex "email", "jabber", "sms", "irc", ... * * @return string */ function transport() { return 'distrib'; } /** * Here's the meat of your queue handler -- you're handed a Notice * object, which you may do as you will with. * * If this function indicates failure, a warning will be logged * and the item is placed back in the queue to be re-run. * * @param Notice $notice * @return boolean true on success, false on failure */ function handle($notice) { // XXX: do we need to change this for remote users? try { $notice->addToInboxes(); } catch (Exception $e) { $this->logit($notice, $e); } try { Event::handle('EndNoticeSave', array($notice)); // Enqueue for other handlers } catch (Exception $e) { $this->logit($notice, $e); } try { common_enqueue_notice($notice); } catch (Exception $e) { $this->logit($notice, $e); } return true; } protected function logit($notice, $e) { common_log(LOG_ERR, "Distrib queue exception saving notice $notice->id: " . $e->getMessage() . ' ' . str_replace("\n", " ", $e->getTraceAsString())); // We'll still return true so we don't get stuck in a loop // trying to run a bad insert over and over... } }