How to refer a sling model with in a sling servlet?

Hi ,

Actually 'StandardConfig' is referred to request because I have to read some values from cookie inside that slingModel. The reason why I can't call the service directly from the servlet is that the request parameter for the service call is based on the author configured value. So I have used the slingModel to get all those values and created a requestobject to call the service. This service will return the result and I am able to access that from the HTL.

The one option is to reload the content page on event trigger. So that automatically sling model will bind all the data and i'll get the result. But for my requirement one of the servlet request parameter should also be considered for creating request object.

Hi,

I don't know how your content is structured and what you exactly try to achieve, but it Looks like that you may also solve this Problem, by simply refactoring your code such you clearly separate the concerns or also restructuring your content.

For me it Looks like that this "StandardConfig" actually should not have any references to a request and that this concern may be moved to the StandardRateService which handles all These loading of These rate configurations (via Service users for example).

And then you simply Need to call this Service from your Sling servlet, so no Need to use the Sling model in the servlet.

This just as a thought of me, but as said, it depends on the Details in your context.

Thanks @Jorg for the suggestion but the @ValueMapValue in the slingmodels are not getting value. I debug the code and find out that. Actually I need the method inside @Postconstruct to work before I call the model. Is there any way to solve this problem.

My model class snippet is like this.

@Model(adaptables = SlingHttpServletRequest.class)

public class StandardrateConfig {

@ValueMapValue

@Via("resource")

@Optional

@Default(values = "")

private String[] rateconfigurations;

.......

.......

@Self

SlingHttpServletRequest request;

@Inject

StandardRateService standardRateService;

........

........

@PostConstruct

protected void init() {

     mymethod();

}

My Sling servlet class snippet is like this

protected void doGet(final SlingHttpServletRequest req,

            final SlingHttpServletResponse resp) throws ServletException,

            IOException {

StandardrateConfig model = req.adaptTo(StandardrateConfig.class);

In most cases you can adapt a request or a resource to a SlingModel.

SlingModel model = request.adaptTo(SlingModel.class);