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<?php
namespace OpenCloud\Common\Transport;
use OpenCloud\Common\Api\Parameter;
use OpenCloud\Common\JsonPath;
/**
* Class responsible for populating the JSON body of a {@see GuzzleHttp\Message\Request} object.
*
* @package OpenCloud\Common\Transport
*/
class JsonSerializer
{
/**
* Populates the actual value into a JSON field, i.e. it has reached the end of the line and no
* further nesting is required.
*
* @param Parameter $param The schema that defines how the JSON field is being populated
* @param mixed $userValue The user value that is populating a JSON field
* @param array $json The existing JSON structure that will be populated
*
* @return array|mixed
*/
private function stockValue(Parameter $param, $userValue, $json)
{
$name = $param->getName();
if ($path = $param->getPath()) {
$jsonPath = new JsonPath($json);
$jsonPath->set(sprintf("%s.%s", $path, $name), $userValue);
$json = $jsonPath->getStructure();
} elseif ($name) {
$json[$name] = $userValue;
} else {
$json[] = $userValue;
}
return $json;
}
/**
* Populates a value into an array-like structure.
*
* @param Parameter $param The schema that defines how the JSON field is being populated
* @param mixed $userValue The user value that is populating a JSON field
*
* @return array|mixed
*/
private function stockArrayJson(Parameter $param, $userValue)
{
$elems = [];
foreach ($userValue as $item) {
$elems = $this->stockJson($param->getItemSchema(), $item, $elems);
}
return $elems;
}
/**
* Populates a value into an object-like structure.
*
* @param Parameter $param The schema that defines how the JSON field is being populated
* @param mixed $userValue The user value that is populating a JSON field
*
* @return array
*/
private function stockObjectJson(Parameter $param, $userValue)
{
$object = [];
foreach ($userValue as $key => $val) {
$object = $this->stockJson($param->getProperty($key), $val, $object);
}
return $object;
}
/**
* A generic method that will populate a JSON structure with a value according to a schema. It
* supports multiple types and will delegate accordingly.
*
* @param Parameter $param The schema that defines how the JSON field is being populated
* @param mixed $userValue The user value that is populating a JSON field
* @param array $json The existing JSON structure that will be populated
*
* @return array
*/
public function stockJson(Parameter $param, $userValue, $json)
{
if ($param->isArray()) {
$userValue = $this->stockArrayJson($param, $userValue);
} elseif ($param->isObject()) {
$userValue = $this->stockObjectJson($param, $userValue);
}
// Populate the final value
return $this->stockValue($param, $userValue, $json);
}
}
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