Configure VaadinCDIServlet without web.xml

Flow
1

Hello everybody,

i am trying to use the Vaadin CDI Addon for my current project.
So far it works fine but i like to set the productionMode property to true instead of running in debug mode and without a web.xml.

It is stated in the
Vaadin CDI Tutorial
 that you are not allowed to use the @VaadinServletConfiguration annotation which makes sense because it requires an UI class, but it is also stated that:
“”

Custom Servlets
When customizing the Vaadin servlet, … , you simply need to extend com.vaadin.cdi.internal.VaadinCDIServlet instead ofcom.vaadin.servlet.VaadinServlet.

“”

But this did not help. Reviewing the code shows this:

[code]
com.vaadin.cdi.internal.ContextDeployer

…

private void registerServletToContext(ServletContext context) {
getLogger().info(“Registering VaadinServlet with CDIUIProvider”);

    VaadinServlet vaadinServlet = new VaadinCDIServlet();

    ...
}

[/code]So therefore extending the cdi servlet will do nothing.

Is there currently a way to set the productionMode property using the CDI addon without a web.xml ?

BTW:
Im using Vaadin Version 8.1.5
and CDI-Addon Version 2.0.0

Best regards,
Michael

2

ok, i got it to work.

It is a solution that works for me and my project but maybe someone has a better idea.

You need to extend the

com.vaadin.cdi.server.VaadinCDIServlet

and add the annotation

@WebServlet

. Here you can set your init parameter using the field initParams which expects an array of

@WebInitParam

 s.
There you have it, now you can set the productionMode and others. Keep in mind to add “/VAADIN/” to the urlPatterns. It is quite simple, but now you don’t need a web.xml for this case.

Here is an example:

@WebServlet(urlPatterns = { "/*", "/VAADIN/" }, name = "VaadinServlet", asyncSupported = true, initParams = {
    @WebInitParam(name = "productionMode", value = "true"), @WebInitParam(name = "closeIdleSessions", value = "true") })
public class VaadinCDIServletAnnotated extends VaadinCDIServlet {
    private static final long serialVersionUID = 1L;

}
3

Hi, you can also set production mode via a System Property.“vaadin.productionMode” and/or “com.vaadin.server.productionMode” should work, set the value to “true” if you want to enable it.

-Olli