在Jersey Mulipart上传后立即开始处理文件

我有一个JAX-RS Web服务,它实现了一个多部分文件上传请求.Web服务需要压缩文件并存储它.这需要很多时间.此处理仅在从客户端上载整个文件后才开始.

我希望在文件在服务器上可用时开始处理文件的InputStream.

我的JAX-RS代码:

   /**
     * POST method for uploading a file
     * @param content representation for the resource
     * @return an HTTP response with content of the updated or created resource.
     */
    @POST
    @Consumes(MediaType.MULTIPART_FORM_DATA)
    @Produces(MediaType.APPLICATION_JSON)
    public String uploadPhoto (
            @FormDataParam("file") final InputStream uploadedInputStream,
            @FormDataParam("file") final FormDataContentDisposition fileDetail,         
            @FormDataParam("key") final String key,
            @FormDataParam("userid") final int userId)  throws Exception {

        String imgURL = **FileProcessor.process**(uploadedInputStream);
        return buildUploadResponse(url);

    }