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<?php
namespace Illuminate\Queue;
use Exception;
use Illuminate\Bus\Batchable;
use Illuminate\Contracts\Bus\Dispatcher;
use Illuminate\Contracts\Cache\Repository as Cache;
use Illuminate\Contracts\Container\Container;
use Illuminate\Contracts\Encryption\Encrypter;
use Illuminate\Contracts\Queue\Job;
use Illuminate\Contracts\Queue\ShouldBeUnique;
use Illuminate\Contracts\Queue\ShouldBeUniqueUntilProcessing;
use Illuminate\Database\Eloquent\ModelNotFoundException;
use Illuminate\Pipeline\Pipeline;
use Illuminate\Support\Str;
use ReflectionClass;
use RuntimeException;
class CallQueuedHandler
{
/**
* The bus dispatcher implementation.
*
* @var \Illuminate\Contracts\Bus\Dispatcher
*/
protected $dispatcher;
/**
* The container instance.
*
* @var \Illuminate\Contracts\Container\Container
*/
protected $container;
/**
* Create a new handler instance.
*
* @param \Illuminate\Contracts\Bus\Dispatcher $dispatcher
* @param \Illuminate\Contracts\Container\Container $container
* @return void
*/
public function __construct(Dispatcher $dispatcher, Container $container)
{
$this->container = $container;
$this->dispatcher = $dispatcher;
}
/**
* Handle the queued job.
*
* @param \Illuminate\Contracts\Queue\Job $job
* @param array $data
* @return void
*/
public function call(Job $job, array $data)
{
try {
$command = $this->setJobInstanceIfNecessary(
$job, $this->getCommand($data)
);
} catch (ModelNotFoundException $e) {
return $this->handleModelNotFound($job, $e);
}
if ($command instanceof ShouldBeUniqueUntilProcessing) {
$this->ensureUniqueJobLockIsReleased($command);
}
$this->dispatchThroughMiddleware($job, $command);
if (! $job->isReleased() && ! $command instanceof ShouldBeUniqueUntilProcessing) {
$this->ensureUniqueJobLockIsReleased($command);
}
if (! $job->hasFailed() && ! $job->isReleased()) {
$this->ensureNextJobInChainIsDispatched($command);
$this->ensureSuccessfulBatchJobIsRecorded($command);
}
if (! $job->isDeletedOrReleased()) {
$job->delete();
}
}
/**
* Get the command from the given payload.
*
* @param array $data
* @return mixed
*
* @throws \RuntimeException
*/
protected function getCommand(array $data)
{
if (Str::startsWith($data['command'], 'O:')) {
return unserialize($data['command']);
}
if ($this->container->bound(Encrypter::class)) {
return unserialize($this->container[Encrypter::class]->decrypt($data['command']));
}
throw new RuntimeException('Unable to extract job payload.');
}
/**
* Dispatch the given job / command through its specified middleware.
*
* @param \Illuminate\Contracts\Queue\Job $job
* @param mixed $command
* @return mixed
*/
protected function dispatchThroughMiddleware(Job $job, $command)
{
return (new Pipeline($this->container))->send($command)
->through(array_merge(method_exists($command, 'middleware') ? $command->middleware() : [], $command->middleware ?? []))
->then(function ($command) use ($job) {
return $this->dispatcher->dispatchNow(
$command, $this->resolveHandler($job, $command)
);
});
}
/**
* Resolve the handler for the given command.
*
* @param \Illuminate\Contracts\Queue\Job $job
* @param mixed $command
* @return mixed
*/
protected function resolveHandler($job, $command)
{
$handler = $this->dispatcher->getCommandHandler($command) ?: null;
if ($handler) {
$this->setJobInstanceIfNecessary($job, $handler);
}
return $handler;
}
/**
* Set the job instance of the given class if necessary.
*
* @param \Illuminate\Contracts\Queue\Job $job
* @param mixed $instance
* @return mixed
*/
protected function setJobInstanceIfNecessary(Job $job, $instance)
{
if (in_array(InteractsWithQueue::class, class_uses_recursive($instance))) {
$instance->setJob($job);
}
return $instance;
}
/**
* Ensure the next job in the chain is dispatched if applicable.
*
* @param mixed $command
* @return void
*/
protected function ensureNextJobInChainIsDispatched($command)
{
if (method_exists($command, 'dispatchNextJobInChain')) {
$command->dispatchNextJobInChain();
}
}
/**
* Ensure the batch is notified of the successful job completion.
*
* @param mixed $command
* @return void
*/
protected function ensureSuccessfulBatchJobIsRecorded($command)
{
$uses = class_uses_recursive($command);
if (! in_array(Batchable::class, $uses) ||
! in_array(InteractsWithQueue::class, $uses) ||
is_null($command->batch())) {
return;
}
$command->batch()->recordSuccessfulJob($command->job->uuid());
}
/**
* Ensure the lock for a unique job is released.
*
* @param mixed $command
* @return void
*/
protected function ensureUniqueJobLockIsReleased($command)
{
if (! $command instanceof ShouldBeUnique) {
return;
}
$uniqueId = method_exists($command, 'uniqueId')
? $command->uniqueId()
: ($command->uniqueId ?? '');
$cache = method_exists($command, 'uniqueVia')
? $command->uniqueVia()
: $this->container->make(Cache::class);
$cache->lock(
'laravel_unique_job:'.get_class($command).$uniqueId
)->forceRelease();
}
/**
* Handle a model not found exception.
*
* @param \Illuminate\Contracts\Queue\Job $job
* @param \Throwable $e
* @return void
*/
protected function handleModelNotFound(Job $job, $e)
{
$class = $job->resolveName();
try {
$shouldDelete = (new ReflectionClass($class))
->getDefaultProperties()['deleteWhenMissingModels'] ?? false;
} catch (Exception $e) {
$shouldDelete = false;
}
if ($shouldDelete) {
return $job->delete();
}
return $job->fail($e);
}
/**
* Call the failed method on the job instance.
*
* The exception that caused the failure will be passed.
*
* @param array $data
* @param \Throwable|null $e
* @param string $uuid
* @return void
*/
public function failed(array $data, $e, string $uuid)
{
$command = $this->getCommand($data);
if (! $command instanceof ShouldBeUniqueUntilProcessing) {
$this->ensureUniqueJobLockIsReleased($command);
}
$this->ensureFailedBatchJobIsRecorded($uuid, $command, $e);
$this->ensureChainCatchCallbacksAreInvoked($uuid, $command, $e);
if (method_exists($command, 'failed')) {
$command->failed($e);
}
}
/**
* Ensure the batch is notified of the failed job.
*
* @param string $uuid
* @param mixed $command
* @param \Throwable $e
* @return void
*/
protected function ensureFailedBatchJobIsRecorded(string $uuid, $command, $e)
{
if (! in_array(Batchable::class, class_uses_recursive($command)) ||
is_null($command->batch())) {
return;
}
$command->batch()->recordFailedJob($uuid, $e);
}
/**
* Ensure the chained job catch callbacks are invoked.
*
* @param string $uuid
* @param mixed $command
* @param \Throwable $e
* @return void
*/
protected function ensureChainCatchCallbacksAreInvoked(string $uuid, $command, $e)
{
if (method_exists($command, 'invokeChainCatchCallbacks')) {
$command->invokeChainCatchCallbacks($e);
}
}
}
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