Supporting URI query variables

[Dennis Lo (CSE Mail)]

Hi,

I'm using restlet version 1.0.10 (stable) and I'm basing my implementation
on the firstResource tutorial at
http://www.restlet.org/documentation/1.0/firstResource

Q1: I would like to know how to support URIs like:
/items?name={name}&description={desc}
i.e. what should I replace the "URI Template matching query variables"
String within:
router.attach("URI Template matching query variables",
ItemsAlgoResource.class);

Currently, I have the following inside firstApplication.java

   @Override
   public synchronized Restlet createRoot() {
      // Create a router Restlet that defines routes.
      Router router = new Router(getContext());

      // Defines a route for the resource "list of items"
      router.attach("/items", ItemsResource.class)

      // Defines a route for the resource "item"
      router.attach("/items/{itemName}", ItemResource.class);

      // Defines a route for the resource "list of items" but returning only
items that match
      router.attach("URI Template to support
/items?name={name}&description={desc}", ItemResourceQueryVariables.class);


      return router;
   }


Q2: I would also like to know how to extract the query variables inside my
Resource implementation ItemResourceQueryVariables.java

I've looked at the tutorial part05 [1] for some clues and [2],
but I don't what lines of code can be use to do something like this inside
constructor of ItemResourceQueryVariables.java:


    /** The sequence of characters that identifies the resource. */
    String itemName;
    String itemDescription;

    public ItemResourceQueryVariables(Context context, Request request,
Response response) {
        super(context, request, response);

        // Get the "itemName" attribute value taken from the URI template

        this.itemName =                     //a line of code the get the
value of "name" from the URI /items?name={name}&description={desc}

        this.itemDescription =            //a line of code the get the value
of "description" from the URI /items?name={name}&description={desc}
    }


Q3: I would also like to know how to support arbitrary number of URI query
variables.
i.e. How do I modify the following bit of code below, so that I can support
/items?name={name}&description={desc}  and /items?name={name}

Currently, I have the following inside firstApplication.java:

   @Override
   public synchronized Restlet createRoot() {
      // Create a router Restlet that defines routes.
      Router router = new Router(getContext());

      // Defines a route for the resource "list of items" but returning only
items that match
      router.attach("URI Template to support
/items?name={name}&description={desc} AND /items?name={name} ",
ItemsQueryResource.class);

      return router;
   }


[1] http://www.restlet.org/documentation/1.0/tutorial#part05
[2] http://restlet.tigris.org/servlets/ReadMsg?listName=discuss&msgNo=4887
-- 
Thanks and kind regards,
Dennis Lo