How to convert a json type input of a restlet request to a POJO?

Question

I would like to write a simple method that receives a json that represents a POJO and just use that POJO.

Example (receiving and returning a POJO):

@Put("json")
public Representation b(JacksonRepresentation<Device> deviceRepresentation)
        throws IOException {
    Device device = deviceRepresentation.getObject();
    // Use the device
    return new JacksonRepresentation<Device>(device);
}

The above example throws an exception: Conflicting setter definitions for property "locationRef"...

Another option would have been using a JsonRepresentation, but I couldn't find a way to convert it to a POJO:

@Put("json")
public Representation b(JsonRepresentation jsonRepresentation) {
    // How to convert the jsonRepresentation to a POJO???
    return new JsonRepresentation(new Device("2", 2));
}

Jackson sounds a better tool for the job, as it has generic, thus mech more type safe - if only it would work...

Answer 1

Ne need to use any representation object. The following worked beautifully, using jackson in the background:

@Put
@Produces(MediaType.APPLICATION_JSON)
@Consumes(MediaType.APPLICATION_JSON)
public Device b(Device device) {
    // Do something with the POJO!!!
    return device;
}

It converts the input and converts the output. Here's a curl example of how it works:

curl -i -X PUT -H 'Content-Type: application/json' -d '{"port":3,"ip":"3"}' http://localhost:8888/restlet/

Result:

HTTP/1.1 200 OK
Content-Type: application/json; charset=UTF-8
Date: Sun, 13 Oct 2013 02:03:48 GMT
Accept-Ranges: bytes
Server: Development/1.0
Vary: Accept-Charset, Accept-Encoding, Accept-Language, Accept
Cache-Control: no-cache
Expires: Fri, 01 Jan 1990 00:00:00 GMT
Content-Length: 19

{"ip":"3","port":3}