/**
* Starts a new background task by passing some data to it with a priority
*
* @param string $taskName name of the task to be executed
* @param mixed $data info to be passed to background task
* @param sting $priority null for normal or either "low" or "high"
* @return boolean success
**/
public static function execute($taskName, $data = null, $priority = null)
{
if (!empty($priority)) {
$priority = strtolower($priority);
if (!in_array($priority, array('low', 'high'))) {
throw new InvalidArgumentException(sprintf('%s is not a valid priority, only accepting low and high', $priority));
}
}
$data = json_encode($data);
$taskName = Nodes\Environment::getProjectName() . '_' . $taskName;
CakeLog::debug(sprintf('Creating background job: %s (%s)', $taskName, $data));
$job = static::client()->{'do' . ucFirst($priority) . 'Background'}($taskName, $data);
if (static::client()->returnCode() !== GEARMAN_SUCCESS) {
CakeLog::error(sprintf('Could not create background job for task %s and data %s. Got %s (%s)', $taskName, $data, $job, static::client()->error()));
return false;
}
return true;
}
/**
* Load cronjobs.json and lint the file
*
* Then convert the complex array to the same
* format as `_parseExistingCronjobs` does
*
* @return array
*/
protected function _loadApplicationCronjobs()
{
$cronjobs = $this->lint(true);
$list = array();
foreach ($cronjobs as $cronjob) {
$name = sprintf('# %s - %s', Nodes\Environment::getProjectName(), $cronjob['name']);
$command = sprintf('cd /var/www/%s/htdocs/ && %s', Nodes\Environment::getProjectName(), $cronjob['command']);
$command = sprintf("%s\t%s\t%s\t%s\t%s\t%s", $cronjob['minute'], $cronjob['hour'], $cronjob['day_of_month'], $cronjob['month'], $cronjob['day_of_week'], $command);
$list[$name] = $command;
}
return $list;
}
/**
* Setup workers and their callbacks for Gearman
*
* @return void
*/
protected function _setupWorkers()
{
$worker = $this->_worker();
foreach (Hash::normalize($this->tasks) as $t => $conf) {
list($plugin, $class) = pluginSplit($t);
if (!method_exists($this->{$class}, 'workerMethods')) {
continue;
}
if (method_exists($this->{$class}, 'startup')) {
$this->{$class}->startup();
}
$methods = $this->{$class}->workerMethods();
foreach ($methods as $name => $method) {
$name = Nodes\Environment::getProjectName() . '_' . $name;
$callback = $this->_addWorkerFunction($class, $method);
$worker->addFunction($name, $callback);
$this->log("Registered function for {$name}", 'info');
}
}
}