public function __construct(array $args)
{
parent::__construct($args);
$stack = $this->getHandlerList();
$stack->appendInit(SSECMiddleware::wrap($this->getEndpoint()->getScheme()), 's3.ssec');
$stack->appendBuild(ApplyChecksumMiddleware::wrap(), 's3.checksum');
$stack->appendBuild(Middleware::contentType(['PutObject', 'UploadPart']), 's3.content_type');
$stack->appendBuild(S3EndpointMiddleware::wrap($this->getRegion(), ['dual_stack' => $this->getConfig('use_dual_stack_endpoint'), 'accelerate' => $this->getConfig('use_accelerate_endpoint')]), 's3.endpoint_middleware');
// Use the bucket style middleware when using a "bucket_endpoint" (for cnames)
if ($this->getConfig('bucket_endpoint')) {
$stack->appendBuild(BucketEndpointMiddleware::wrap(), 's3.bucket_endpoint');
}
$stack->appendSign(PutObjectUrlMiddleware::wrap(), 's3.put_object_url');
$stack->appendSign(PermanentRedirectMiddleware::wrap(), 's3.permanent_redirect');
$stack->appendInit(Middleware::sourceFile($this->getApi()), 's3.source_file');
$stack->appendInit($this->getSaveAsParameter(), 's3.save_as');
$stack->appendInit($this->getLocationConstraintMiddleware(), 's3.location');
$stack->appendInit($this->getEncodingTypeMiddleware(), 's3.auto_encode');
$stack->appendInit($this->getHeadObjectMiddleware(), 's3.head_object');
}