How to download file dynamically using Wicket's DownloadLink with a file generated using Wicket 7?

Html:

<a wicket:id="downloadLink" >
   Download
</a>

Java class:

 IModel<File> fileModel = new AbstractReadOnlyModel<File>() {
                    @Override
                    public File getObject() {
                        return generatedFile();
                    }
                };

DownloadLink downloadLink= new DownloadLink("downloadLink", fileModel);

//This line used to delete once the download is completed

downloadLinkAddress.setDeleteAfterDownload(true);

The above step will make slow if you are showing many record at a time.

I would prefer below this way , ok let's start

In some scenario we might want to create a file and download dynamically when we click download 

IModel<File> fileModel =Model.of((File) null);

DownloadLink downloadLink = new DownloadLink("downloadlink",fileModel ){
    @Override    public void onClick() {
         File downloadFile = genaratedFile(); /**Call some utils to create a file
        IResourceStream resourceStream =
                new FileResourceStream(new org.apache.wicket.util.file.File(file));
/**Should pass full file path
        getRequestCycle().scheduleRequestHandlerAfterCurrent
                (new ResourceStreamRequestHandler(resourceStream).
                        setFileName(file.getName()));

}
};