private function parseRequestBody()
	{
		$content_type = $this->getRequestHeader()->getContentType();
		if (strpos($content_type, 'application/json') !== false) {
			$this->requestBody = new JsonBody();
		} elseif (strpos($content_type, 'application/x-www-form-urlencoded') !== false) {
			$this->requestBody = new FormBody();
		} elseif (strpos($content_type, 'text/plain') !== false) {
			$this->requestBody = new PlainBody();
		} elseif (strpos($content_type, 'multipart/form-data') !== false) {
			$this->requestBody = new MultipartBody();
		} else {
			$this->requestBody = new HttpBody();
		}
	}