How to get a HttpServletRequest instance from ApplicationModule ?

Question

All methods that I use as data actions are located in ApplModuleImpl.java. I need to get an IP address of an user using one of those methods. The problem is that I have to get an instance of HttpServletRequest (which have a getRemoteAddr() method) but I don't know how to do it from Application Module.
Any ideas ?

Answer 1

I approached a similar problem by extending the PageController and the ApplicationModule classes for the application (in the ViewController and Model projects respectively). Rather than tie the AppModule directly to the HTTP request object, I extended the PageController subclass to process the request object for specific information needed from it and communicate to the ApplicationModule as needed.
In the extended PageController subclass, you'll have to import javax.servlet.http.HttpServletRequest and use
HttpServletRequest request = (HttpServletRequest) context.getEnvironment().getRequest(); to get reference to the request object.
I extended the ApplicationModule with setter methods to pass information into it from the specific PageController subclasses; the approach keeps the model layer more independent of the web-browser layer (it's not dependent on an HttpServletRequest object), and still allows the AppModule to be used with different UI technologies.
We also needed to get the custom PageController methods invoked at the right points.
Edited by: rpalazola on Sep 16, 2008 11:37 AM
Edited by: rpalazola on Sep 16, 2008 11:44 AM