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<?php
namespace Aws\Api\Serializer;
use Aws\Api\Service;
use Aws\Api\Shape;
use Aws\Api\TimestampShape;
use Aws\Exception\InvalidJsonException;
/**
* Formats the JSON body of a JSON-REST or JSON-RPC operation.
* @internal
*/
class JsonBody
{
private $api;
public function __construct(Service $api)
{
$this->api = $api;
}
/**
* Gets the JSON Content-Type header for a service API
*
* @param Service $service
*
* @return string
*/
public static function getContentType(Service $service)
{
if ($service->getMetadata('protocol') === 'rest-json') {
return 'application/json';
}
$jsonVersion = $service->getMetadata('jsonVersion');
if (empty($jsonVersion)) {
throw new \InvalidArgumentException('invalid json');
} else {
return 'application/x-amz-json-'
. @number_format($service->getMetadata('jsonVersion'), 1);
}
}
/**
* Builds the JSON body based on an array of arguments.
*
* @param Shape $shape Operation being constructed
* @param array $args Associative array of arguments
*
* @return string
*/
public function build(Shape $shape, array $args)
{
$result = json_encode($this->format($shape, $args));
return $result == '[]' ? '{}' : $result;
}
private function format(Shape $shape, $value)
{
switch ($shape['type']) {
case 'structure':
$data = [];
if (isset($shape['document']) && $shape['document']) {
return $value;
}
foreach ($value as $k => $v) {
if ($v !== null && $shape->hasMember($k)) {
$valueShape = $shape->getMember($k);
$data[$valueShape['locationName'] ?: $k]
= $this->format($valueShape, $v);
}
}
if (empty($data)) {
return new \stdClass;
}
return $data;
case 'list':
$items = $shape->getMember();
foreach ($value as $k => $v) {
$value[$k] = $this->format($items, $v);
}
return $value;
case 'map':
if (empty($value)) {
return new \stdClass;
}
$values = $shape->getValue();
foreach ($value as $k => $v) {
$value[$k] = $this->format($values, $v);
}
return $value;
case 'blob':
return base64_encode($value);
case 'timestamp':
$timestampFormat = !empty($shape['timestampFormat'])
? $shape['timestampFormat']
: 'unixTimestamp';
return TimestampShape::format($value, $timestampFormat);
default:
return $value;
}
}
}
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