Roberto:
May be it will help if you can tell when the objects are failing to be
attached to the context. Here's an example script that will let us know.
I didn't test this script. I need it to stop when the problem occurs.
Then we can move from there.
for i in `seq 0 500` ;
do
/usr/bin/wget url #use the full path to wget to avoid an alias (ie,
--spider or -b )
grep theText > /dev/null
if [ "$?" = "1" ] ;
then
echo "Failed at i=" $i ;
break;
fi
done
On Wed May 27,2009 10:54 pm, Roberto Rossi wrote:
> Hi everyone.
> I'd like to share a very strange behaviour of the velocity context
> using the velocity bridge.
> I'm using Jetspeed 2.1.2 with Tomcat 6 and Velocity 1.5 (Velocity Tools 1.3).
> I found that in case of many concurrent requests to a psml page made
> by many fragments of velocity portlets the velocity templates are not
> receiving correct objects.
>
> My portlets (at the end of their execution) call context.put("object",
> object) but the template is not receiving the correct object and
> inside the variable $object there is another object
> (put before in the context by some other portlet using the same key).
> With just 1 request there are no problems, but using a repeated wget
> command in background (like this: for i in `seq 0 500`; do wget
> "http://www.sample.com/jetspeed/portal/page.psml";; done) and asking
> for the same psml page the objects to velocity templates are often
> wrong .
>
> The velocity context shouldn't be empty for every portlet fragment?
> I checked all my objects before putting them in the context (logging
> their properties) and they are all right.
> Any ideas about this problem? Maybe I'm wrong in my portlet
> development approach?
> I cannot found the reason for this issue, but I think it is very
> urgent (if we can confirm that it's a bug).
> -----------------------------------
>
> This is my portlet code writing approach:
>
> import ...
>
> public class MyVelocityPortlet extends GenericVelocityPortlet {
> // some private variables
>
> public void doView(javax.portlet.RenderRequest request,
> javax.portlet.RenderResponse response)
> throws javax.portlet.PortletException, java.io.IOException
> {
> PortletContext portletContext = null;
> PortletRequestDispatcher portletRequestDispatcher = null;
>
> // obtaining the velocity context
> context = getContext(request);
>
> // portlet relevant code
> ...
>
> // putting object to context (in this case a menu)
> context.put("object", object);
>
> /* go to template */
> response.setContentType("text/html");
> portletContext = (PortletContext) this.getPortletContext();
>
> portletRequestDispatcher = (PortletRequestDispatcher)
> portletContext.getRequestDispatcher("view.vm");
> portletRequestDispatcher.include(request,response);
> }
> }
>
>
> ROb
>
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