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<?php
namespace Illuminate\Queue\Console;
use Carbon\Carbon;
use Illuminate\Queue\Worker;
use Illuminate\Console\Command;
use Illuminate\Contracts\Queue\Job;
use Illuminate\Queue\Events\JobFailed;
use Illuminate\Queue\Events\JobProcessed;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Input\InputArgument;
class WorkCommand extends Command
{
/**
* The console command name.
*
* @var string
*/
protected $name = 'queue:work';
/**
* The console command description.
*
* @var string
*/
protected $description = 'Process the next job on a queue';
/**
* The queue worker instance.
*
* @var \Illuminate\Queue\Worker
*/
protected $worker;
/**
* Create a new queue listen command.
*
* @param \Illuminate\Queue\Worker $worker
* @return void
*/
public function __construct(Worker $worker)
{
parent::__construct();
$this->worker = $worker;
}
/**
* Execute the console command.
*
* @return void
*/
public function fire()
{
if ($this->downForMaintenance() && ! $this->option('daemon')) {
return $this->worker->sleep($this->option('sleep'));
}
// We'll listen to the processed and failed events so we can write information
// to the console as jobs are processed, which will let the developer watch
// which jobs are coming through a queue and be informed on its progress.
$this->listenForEvents();
$queue = $this->option('queue');
$delay = $this->option('delay');
// The memory limit is the amount of memory we will allow the script to occupy
// before killing it and letting a process manager restart it for us, which
// is to protect us against any memory leaks that will be in the scripts.
$memory = $this->option('memory');
$connection = $this->argument('connection');
$this->runWorker(
$connection, $queue, $delay, $memory, $this->option('daemon')
);
}
/**
* Listen for the queue events in order to update the console output.
*
* @return void
*/
protected function listenForEvents()
{
$this->laravel['events']->listen(JobProcessed::class, function ($event) {
$this->writeOutput($event->job, false);
});
$this->laravel['events']->listen(JobFailed::class, function ($event) {
$this->writeOutput($event->job, true);
});
}
/**
* Run the worker instance.
*
* @param string $connection
* @param string $queue
* @param int $delay
* @param int $memory
* @param bool $daemon
* @return array
*/
protected function runWorker($connection, $queue, $delay, $memory, $daemon = false)
{
$this->worker->setDaemonExceptionHandler(
$this->laravel['Illuminate\Contracts\Debug\ExceptionHandler']
);
if ($daemon) {
$this->worker->setCache($this->laravel['cache']->driver());
return $this->worker->daemon(
$connection, $queue, $delay, $memory,
$this->option('sleep'), $this->option('tries')
);
}
return $this->worker->pop(
$connection, $queue, $delay,
$this->option('sleep'), $this->option('tries')
);
}
/**
* Write the status output for the queue worker.
*
* @param \Illuminate\Contracts\Queue\Job $job
* @param bool $failed
* @return void
*/
protected function writeOutput(Job $job, $failed)
{
if ($failed) {
$this->output->writeln('<error>['.Carbon::now()->format('Y-m-d H:i:s').'] Failed:</error> '.$job->resolveName());
} else {
$this->output->writeln('<info>['.Carbon::now()->format('Y-m-d H:i:s').'] Processed:</info> '.$job->resolveName());
}
}
/**
* Determine if the worker should run in maintenance mode.
*
* @return bool
*/
protected function downForMaintenance()
{
if ($this->option('force')) {
return false;
}
return $this->laravel->isDownForMaintenance();
}
/**
* Get the console command arguments.
*
* @return array
*/
protected function getArguments()
{
return [
['connection', InputArgument::OPTIONAL, 'The name of connection', null],
];
}
/**
* Get the console command options.
*
* @return array
*/
protected function getOptions()
{
return [
['queue', null, InputOption::VALUE_OPTIONAL, 'The queue to listen on'],
['daemon', null, InputOption::VALUE_NONE, 'Run the worker in daemon mode'],
['delay', null, InputOption::VALUE_OPTIONAL, 'Amount of time to delay failed jobs', 0],
['force', null, InputOption::VALUE_NONE, 'Force the worker to run even in maintenance mode'],
['memory', null, InputOption::VALUE_OPTIONAL, 'The memory limit in megabytes', 128],
['sleep', null, InputOption::VALUE_OPTIONAL, 'Number of seconds to sleep when no job is available', 3],
['tries', null, InputOption::VALUE_OPTIONAL, 'Number of times to attempt a job before logging it failed', 0],
];
}
}