a4j:mediaOutput and bytearray from database

[fuubah]

Hi all,

this is my first post, i hope it is the right place.

I cant get the a4j:mediaOutput working.

if followed some howto's , googled and modifieded code from here.

http://docs.jboss.org/richfaces/latest_3_3_X/en/devguide/html/a4j_mediaOutput.html

Im using glassfish 3.1 and richfaces 4.1. both are working( i created some tables and calendars.)

My problem is that i cant render my bytearray with that component.

I changed the paint method from the documentation to this :

public void paint(OutputStream out, Object data) throws IOException{

        byte[] imageData = ### call Method which returns a ByteArray ### ;  <---- i removed the methodcall just in this post

        BufferedImage img = ImageIO.read(new ByteArrayInputStream(imageData));

        ImageIO.write(img,"jpg",out);

    }

in my index.xhtml i wrote this.  the rest is 1:1 as in the documentation.

<a4j:mediaOutput element="img" cacheable="false" session="false" createContent="#{mediaBean.paint}" value="#{mediaData}" mimeType="image/jpeg"/>

I tried the same with primefaces p:graphicImage in a separate project and it is working without problems :/ but i want to use richfaces.

you would really help me if you show me what i am doing wrong. Or tell me how to render a BLOB from a database in pure jsf. or post a link to someone uses mediaoutput with BLOB / bytearray image

thanks in advance

[fuubah]

got it working with pure JSF, i wrote a servlet. In case anyone wants to know how i post the code.

@WebServlet("/imgservlet")

public class imgservlet extends HttpServlet {

          private static final long serialVersionUID = 1L;

          public void doGet(HttpServletRequest request,    HttpServletResponse response) throws ServletException, IOException{

              byte[] imageData = ### call method which returns a ByteArray ### ;  <---- i removed the methodcall just in this post

              response.reset();

              response.setContentType("image/jpg");

              response.getOutputStream().write(imageData);

              response.getOutputStream().flush();

          }

}

code in the index.xhtml:

<h:graphicImage value="/imgservlet"  />

But i still not know how to do this with mediaoutput, would be cool if someone can help me.