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<?php
namespace Illuminate\Bus;
use Closure;
use Illuminate\Queue\CallQueuedClosure;
use Illuminate\Support\Arr;
use RuntimeException;
trait Queueable
{
/**
* The name of the connection the job should be sent to.
*
* @var string|null
*/
public $connection;
/**
* The name of the queue the job should be sent to.
*
* @var string|null
*/
public $queue;
/**
* The name of the connection the chain should be sent to.
*
* @var string|null
*/
public $chainConnection;
/**
* The name of the queue the chain should be sent to.
*
* @var string|null
*/
public $chainQueue;
/**
* The callbacks to be executed on chain failure.
*
* @var array|null
*/
public $chainCatchCallbacks;
/**
* The number of seconds before the job should be made available.
*
* @var \DateTimeInterface|\DateInterval|array|int|null
*/
public $delay;
/**
* Indicates whether the job should be dispatched after all database transactions have committed.
*
* @var bool|null
*/
public $afterCommit;
/**
* The middleware the job should be dispatched through.
*
* @var array
*/
public $middleware = [];
/**
* The jobs that should run if this job is successful.
*
* @var array
*/
public $chained = [];
/**
* Set the desired connection for the job.
*
* @param string|null $connection
* @return $this
*/
public function onConnection($connection)
{
$this->connection = $connection;
return $this;
}
/**
* Set the desired queue for the job.
*
* @param string|null $queue
* @return $this
*/
public function onQueue($queue)
{
$this->queue = $queue;
return $this;
}
/**
* Set the desired connection for the chain.
*
* @param string|null $connection
* @return $this
*/
public function allOnConnection($connection)
{
$this->chainConnection = $connection;
$this->connection = $connection;
return $this;
}
/**
* Set the desired queue for the chain.
*
* @param string|null $queue
* @return $this
*/
public function allOnQueue($queue)
{
$this->chainQueue = $queue;
$this->queue = $queue;
return $this;
}
/**
* Set the desired delay in seconds for the job.
*
* @param \DateTimeInterface|\DateInterval|array|int|null $delay
* @return $this
*/
public function delay($delay)
{
$this->delay = $delay;
return $this;
}
/**
* Indicate that the job should be dispatched after all database transactions have committed.
*
* @return $this
*/
public function afterCommit()
{
$this->afterCommit = true;
return $this;
}
/**
* Indicate that the job should not wait until database transactions have been committed before dispatching.
*
* @return $this
*/
public function beforeCommit()
{
$this->afterCommit = false;
return $this;
}
/**
* Specify the middleware the job should be dispatched through.
*
* @param array|object $middleware
* @return $this
*/
public function through($middleware)
{
$this->middleware = Arr::wrap($middleware);
return $this;
}
/**
* Set the jobs that should run if this job is successful.
*
* @param array $chain
* @return $this
*/
public function chain($chain)
{
$this->chained = collect($chain)->map(function ($job) {
return $this->serializeJob($job);
})->all();
return $this;
}
/**
* Prepend a job to the current chain so that it is run after the currently running job.
*
* @param mixed $job
* @return $this
*/
public function prependToChain($job)
{
$this->chained = Arr::prepend($this->chained, $this->serializeJob($job));
return $this;
}
/**
* Append a job to the end of the current chain.
*
* @param mixed $job
* @return $this
*/
public function appendToChain($job)
{
$this->chained = array_merge($this->chained, [$this->serializeJob($job)]);
return $this;
}
/**
* Serialize a job for queuing.
*
* @param mixed $job
* @return string
*
* @throws \RuntimeException
*/
protected function serializeJob($job)
{
if ($job instanceof Closure) {
if (! class_exists(CallQueuedClosure::class)) {
throw new RuntimeException(
'To enable support for closure jobs, please install the illuminate/queue package.'
);
}
$job = CallQueuedClosure::create($job);
}
return serialize($job);
}
/**
* Dispatch the next job on the chain.
*
* @return void
*/
public function dispatchNextJobInChain()
{
if (! empty($this->chained)) {
dispatch(tap(unserialize(array_shift($this->chained)), function ($next) {
$next->chained = $this->chained;
$next->onConnection($next->connection ?: $this->chainConnection);
$next->onQueue($next->queue ?: $this->chainQueue);
$next->chainConnection = $this->chainConnection;
$next->chainQueue = $this->chainQueue;
$next->chainCatchCallbacks = $this->chainCatchCallbacks;
}));
}
}
/**
* Invoke all of the chain's failed job callbacks.
*
* @param \Throwable $e
* @return void
*/
public function invokeChainCatchCallbacks($e)
{
collect($this->chainCatchCallbacks)->each(function ($callback) use ($e) {
$callback($e);
});
}
}
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