Hi,
I was wondering if it was possible to retrieve the instance name ( given to an
instance of a ortlet by the Management Portlet ) of a portlet from JBoss?
I have a portlet which can be told at run time to point to the location of a
video feed (multipart jpeg) and display it. I have many instances of this
portlet pointing to different video feeds. When i reboot JBoss though the
locations are lost because i am storing the location in a class variable. When
the objects are reistanciated the location variable goes back to null.
My sneaky solution ( avoiding extra work ) is to name the portlet instances the
location which they should be pointing to, when the portlets are displayed i
hope to retrieve the intance name, and thus the location of the video feed.
It would also be useful if i could change the name of an instance from inside
my portlet too.
My code is shown here. The doEdit method just displays a jsp page with a text
input box.
public class ImageViewPortlet extends GenericPortlet {
| String imageLocation;
|
| protected void doView(RenderRequest renderRequest, RenderResponse
renderResponse) throws PortletException, PortletSecurityException, IOException {
| renderResponse.setContentType("text/html");
|
| Writer writer = renderResponse.getWriter();
|
| if(imageLocation == null)
| imageLocation = "none";
|
| writer.write("<img src=" + imageLocation + "/>");
| }
|
| protected void doEdit(RenderRequest renderRequest, RenderResponse
renderResponse) throws PortletException, PortletSecurityException, IOException {
| renderResponse.setContentType("text/html");
|
| try {
| PortletRequestDispatcher prd =
getPortletContext().getRequestDispatcher("/jsp/ImageEdit.jsp");
| prd.include(renderRequest, renderResponse);
| }
| catch (Exception e)
| {
| e.printStackTrace();
| }
| }
|
| public void processAction(ActionRequest actionRequest, ActionResponse
actionResponse) throws PortletException, PortletSecurityException, IOException {
| String imageLocation = actionRequest.getParameter("imageLocation");
| this.imageLocation = imageLocation;
| actionResponse.setPortletMode(PortletMode.VIEW);
| }
|
| }
cheers
Mat
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