/**
* Returns a task to work on.
*
* @param string $tube (optional) the tube(queue) to reserve a task from
*
* @throws TaskQueueServiceException
* @return WorkPackage
*/
public function reserveTask($tube = null)
{
if (is_null($tube)) {
$tube = $this->defaultTube;
}
$inTask = $this->beanstalk->watch($tube)->ignore('default')->reserve(2);
if ($inTask === false) {
return null;
}
$data = $inTask->getData();
$parts = explode("::", $data, 2);
if (count($parts) !== 2) {
$this->beanstalk->delete($inTask);
throw new TaskQueueServiceException("Invalid format in TaskQueue {$tube}");
}
try {
$taskObject = $this->serializer->deserialize($parts[1], $parts[0], 'json');
} catch (UnsupportedFormatException $exception) {
$this->beanstalk->delete($inTask);
throw new TaskQueueServiceException("Invalid format in TaskQueue {$tube} ");
} catch (\ReflectionException $exception) {
$this->beanstalk->delete($inTask);
throw new TaskQueueServiceException("Invalid format in TaskQueue {$tube} class " . $parts[0] . ' is unknown');
}
if (!$taskObject instanceof TaskDescriptionInterface) {
$this->beanstalk->delete($inTask);
throw new TaskQueueServiceException("Invalid data in TaskQueue {$tube}");
}
if (!$this->databaseDisabled) {
$taskEntity = $this->taskRepo->find($taskObject->getTaskIdentifier());
} else {
//remake the task entity
$taskEntity = new Task($taskObject, '', $tube);
}
if (!$taskEntity instanceof Task) {
$this->beanstalk->delete($inTask);
throw new TaskQueueServiceException("Unable to find taskEntity for task:" . $taskObject->getTaskIdentifier());
}
/**
* @var Task $taskEntity
*/
$workPackage = new WorkPackage($taskEntity, $inTask, $taskObject);
$this->updateTaskStatus($workPackage, Task::STATUS_WORKING);
return $workPackage;
}
/**
* @return void
*/
public function testIfWatchWrapsProperly()
{
$this->pheanstalk->shouldReceive('watch')->with('tube')->once();
$return = $this->connection->watch('tube');
$this->assertEquals($this->connection, $return, 'Return should be the same as the connection');
}
