Extract query params before Resources are hit

[Xuemin Guan]

hi all, hope someone can help me here.

I have a uri with a queryparam which looks like this:

http://localhost:8000/helloworld?name=Matt

What I want to do is to extract value of the queryparam name before any Resource is hit and have this value inject into the request scope, so that my resource can look like this:

public class GreetingResource {

   public GreetingResource(String name) {

         this.name = name;

   }

    @GET

    @Path("/GreetingResource")

    public Response sayHello() {

        return ResponseBuilder.response(OK).entity("hello " + name).build();

    }

}

The reason I want to do this is because I need to extract this value across the board for many methods on many resources. 

Can someone help me on this please?

Your help is much appreciated!

Xuemin

[Matt Savage]

You can create a tiny type with an activator or constructor that depends on Request, then extract the query param value there. Is that what you're after?

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[Xuemin (Shuemin) Guan]

Matt, I think that would work! I will give it a go.

Thank you so much! The queryparam had your name in it, you just had to help me :)

[Matt Savage]

You left me no choice there ;)