public Request<CancelJobRequest> marshall(CancelJobRequest cancelJobRequest) {

    if (cancelJobRequest == null) {
      throw new AmazonClientException("Invalid argument passed to marshall(...)");
    }

    Request<CancelJobRequest> request =
        new DefaultRequest<CancelJobRequest>(cancelJobRequest, "AmazonSnowball");
    request.addHeader("X-Amz-Target", "AWSIESnowballJobManagementService.CancelJob");

    request.setHttpMethod(HttpMethodName.POST);

    request.setResourcePath("");

    try {
      final StructuredJsonGenerator jsonGenerator = protocolFactory.createGenerator();

      jsonGenerator.writeStartObject();

      if (cancelJobRequest.getJobId() != null) {
        jsonGenerator.writeFieldName("JobId").writeValue(cancelJobRequest.getJobId());
      }

      jsonGenerator.writeEndObject();

      byte[] content = jsonGenerator.getBytes();
      request.setContent(new ByteArrayInputStream(content));
      request.addHeader("Content-Length", Integer.toString(content.length));
      request.addHeader("Content-Type", protocolFactory.getContentType());
    } catch (Throwable t) {
      throw new AmazonClientException("Unable to marshall request to JSON: " + t.getMessage(), t);
    }

    return request;
  }
  public Request<CancelJobRequest> marshall(CancelJobRequest cancelJobRequest) {
    Request<CancelJobRequest> request =
        new DefaultRequest<CancelJobRequest>(cancelJobRequest, "AmazonImportExport");
    request.addParameter("Action", "CancelJob");
    request.addParameter("Version", "2010-06-01");
    if (cancelJobRequest != null) {
      if (cancelJobRequest.getJobId() != null) {
        request.addParameter("JobId", StringUtils.fromString(cancelJobRequest.getJobId()));
      }
    }

    return request;
  }