Hi at all,<br />
<br />
I have a servlet, which gets an instance from the reportingEngine.<br />
My question now is following:<br />
Is there a possibility to get a progress bar like the one in the BIRT Web Viewer?<br />
<br />
What I want to have is that there is a progress bar shown when the report is generated and renderd. So that the user knows that everything is all right und ne application is working.<br />
<br />
I Include the servlet with <ui:include/> in a xhtml file.<br />
<br />
Is there somebody with an idea if and how this is possible?<br />
<br />
Here is my code from the servlet<br />
<br />
<pre class='_prettyXprint _lang-auto _linenums:0'>public class WebReport extends HttpServlet {
/**
*
*/
private static final long serialVersionUID = 1L;
/**
* Constructor of the object.
*/
private IReportEngine birtReportEngine = null;
protected static Logger logger = Logger.getLogger( "org.eclipse.birt" );
public WebReport() {
super();
}
/**
* Destruction of the servlet.
*/
public void destroy() {
super.destroy();
BirtEngine.destroyBirtEngine();
}
/**
* The doGet method of the servlet.
*
*/
public void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
//get report name and launch the engine
resp.setContentType("text/html");
//resp.setContentType( "application/pdf" );
resp.setHeader ("Content-Disposition","inline; filename=test.pdf");
String reportName = req.getParameter("ReportName");
reportName = "uebersicht.rptdesign";
ServletContext sc = req.getSession().getServletContext();
this.birtReportEngine = BirtEngine.getBirtEngine(sc);
IReportRunnable design;
try
{
//Open report design
design = birtReportEngine.openReportDesign( sc.getRealPath("/Reports")+"/"+reportName );
//create task to run and render report
IRunAndRenderTask task = birtReportEngine.createRunAndRenderTask( design );
task.getAppContext().put(EngineConstants.APPCONTEXT_CLASSLOADER_KEY, WebReport.class.getClassLoader());
//set output options
HTMLRenderOption options = new HTMLRenderOption();
//set the image handler to a HTMLServerImageHandler if you plan on using the base image url.
options.setImageHandler(new HTMLServerImageHandler());
options.setOutputFormat(HTMLRenderOption.OUTPUT_FORMAT_HTML);
//options.setOutputFormat(HTMLRenderOption.OUTPUT_FORMAT_PDF);
options.setOutputStream(resp.getOutputStream());
options.setBaseImageURL(req.getContextPath()+"/images");
options.setImageDirectory(sc.getRealPath("/images"));
task.setRenderOption(options);
options.setSupportedImageFormats("JPG;PNG;BMP;SVG");
//run report
task.run();
task.close();
}catch (Exception e){
e.printStackTrace();
throw new ServletException( e );
}
}
/**
* The doPost method of the servlet.
*
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">");
out.println("<HTML>");
out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
out.println(" <BODY>");
out.println(" Post Not Supported");
out.println(" </BODY>");
out.println("</HTML>");
out.flush();
out.close();
}
/**
* Initialization of the servlet.
*
*
@throws ServletException if an error occure
*/
public void init() throws ServletException {
BirtEngine.initBirtConfig();
}
}</pre>
