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<?php
/**
* Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace OC\BackgroundJob;
/**
* Class QueuedJob
*
* create a background job that is to be executed once
*
* @package OC\BackgroundJob
*/
class JobList {
/**
* @param Job|string $job
* @param mixed $argument
*/
public function add($job, $argument = null) {
if (!$this->has($job, $argument)) {
if ($job instanceof Job) {
$class = get_class($job);
} else {
$class = $job;
}
$argument = json_encode($argument);
$query = \OC_DB::prepare('INSERT INTO `*PREFIX*jobs`(`class`, `argument`, `last_run`) VALUES(?, ?, 0)');
$query->execute(array($class, $argument));
}
}
/**
* @param Job|string $job
* @param mixed $argument
*/
public function remove($job, $argument = null) {
if ($job instanceof Job) {
$class = get_class($job);
} else {
$class = $job;
}
if (!is_null($argument)) {
$argument = json_encode($argument);
$query = \OC_DB::prepare('DELETE FROM `*PREFIX*jobs` WHERE `class` = ? AND `argument` = ?');
$query->execute(array($class, $argument));
} else {
$query = \OC_DB::prepare('DELETE FROM `*PREFIX*jobs` WHERE `class` = ?');
$query->execute(array($class));
}
}
/**
* check if a job is in the list
*
* @param $job
* @param mixed $argument
* @return bool
*/
public function has($job, $argument) {
if ($job instanceof Job) {
$class = get_class($job);
} else {
$class = $job;
}
$argument = json_encode($argument);
$query = \OC_DB::prepare('SELECT `id` FROM `*PREFIX*jobs` WHERE `class` = ? AND `argument` = ?');
$result = $query->execute(array($class, $argument));
return (bool)$result->fetchRow();
}
/**
* get all jobs in the list
*
* @return Job[]
*/
public function getAll() {
$query = \OC_DB::prepare('SELECT `id`, `class`, `last_run`, `argument` FROM `*PREFIX*jobs`');
$result = $query->execute();
$jobs = array();
while ($row = $result->fetchRow()) {
$jobs[] = $this->buildJob($row);
}
return $jobs;
}
/**
* get the next job in the list
*
* @return Job
*/
public function getNext() {
$lastId = $this->getLastJob();
$query = \OC_DB::prepare('SELECT `id`, `class`, `last_run`, `argument` FROM `*PREFIX*jobs` WHERE `id` > ? ORDER BY `id` ASC', 1);
$result = $query->execute(array($lastId));
if ($row = $result->fetchRow()) {
return $this->buildJob($row);
} else {
//begin at the start of the queue
$query = \OC_DB::prepare('SELECT `id`, `class`, `last_run`, `argument` FROM `*PREFIX*jobs` ORDER BY `id` ASC', 1);
$result = $query->execute();
if ($row = $result->fetchRow()) {
return $this->buildJob($row);
} else {
return null; //empty job list
}
}
}
/**
* @param int $id
* @return Job
*/
public function getById($id) {
$query = \OC_DB::prepare('SELECT `id`, `class`, `last_run`, `argument` FROM `*PREFIX*jobs` WHERE `id` = ?');
$result = $query->execute(array($id));
if ($row = $result->fetchRow()) {
return $this->buildJob($row);
} else {
return null;
}
}
/**
* get the job object from a row in the db
*
* @param array $row
* @return Job
*/
private function buildJob($row) {
$class = $row['class'];
/**
* @var Job $job
*/
$job = new $class();
$job->setId($row['id']);
$job->setLastRun($row['last_run']);
$job->setArgument(json_decode($row['argument'], true));
return $job;
}
/**
* set the job that was last ran
*
* @param Job $job
*/
public function setLastJob($job) {
\OC_Appconfig::setValue('backgroundjob', 'lastjob', $job->getId());
}
/**
* get the id of the last ran job
*
* @return int
*/
public function getLastJob() {
return \OC_Appconfig::getValue('backgroundjob', 'lastjob', 0);
}
/**
* set the lastRun of $job to now
*
* @param Job $job
*/
public function setLastRun($job) {
$query = \OC_DB::prepare('UPDATE `*PREFIX*jobs` SET `last_run` = ? WHERE `id` = ?');
$query->execute(array(time(), $job->getId()));
}
}
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