Handles a call. The default behavior is to initialize the Restlet by setting the current context using the {@link Context#setCurrent(Context)}method and by attempting to start it, unless it was already started. If an exception is thrown during the start action, then the response status is set to {@link Status#SERVER_ERROR_INTERNAL}.
Subclasses overriding this method should make sure that they call super.handle(request, response) before adding their own logic.
@param request The request to handle.
@param response The response to update.