CODEWITHSUNDEEP
javajsonrestjaxbresteasy
Shadowman
Shadowman

Reputation: 12049

JSON Parsing errors with RESTeasy/JAXB

I'm trying to make a call to the iTunes REST service that returns information about the genres defined in iTunes via a RESTeasy client. The JSON object returned by this call looks something like this:

{
   "35":{
      "name":"iPod Games",
      "id":"35",
      "url":"https://itunes.apple.com/us/genre/ipod-games/id35"
   },
   "36":{
      "name":"App Store",
      "id":"36",
      "url":"https://itunes.apple.com/us/genre/ios/id36?mt=8"
   }
}

I've defined my response object model like this:

@XmlRootElement
@XmlAccessorType(XmlAccessType.FIELD)
@JsonIgnoreProperties(ignoreUnknown = true)
public class ITunesGenre implements Serializable {

    private static final long serialVersionUID = 4330727214147295490L;

    @XmlElement
    private String name = null;

    @XmlElement
    private String id = null;

   ...

}

However, when I make the call via my RESTeasy client, however, I get serialization errors. I believe it is due to the fact that this is not a true List or array of objects. Instead, it seems like each entry has an "identifier" on it (in the example above, the "35" or "36").

Given a JSON object like this, how do I map this so that the RESTeasy client can deserialize it? I've not encountered objects of this format before. I obviously can't hard-code each identifier, since there will be several and they could potentially change.

You can see the full JSON object returned by this call (it's sizable) by clicking here. You'll see that this object structure is found throughout this object, rather than using simple Lists or Arrays of objects.

Any ideas? I'd really appreciate any help you can give.

Upvotes: 0

Views: 987

Answers (2)

Sam Nunnally
Sam Nunnally

Reputation: 2321

I suppose it could look something like this (though i haven't tested it)

@XmlRootElement
public class Response implements Serializable
{
    public Response(){
    }

    private java.util.Map<String, Genre> genres = new java.util.HashMap<String, Genre> ();
}


public class Genre implements Serializable {

    private static final long serialVersionUID = 4330727214147295490L;

    public Genre(){
    }

    @XmlElement
    private String name = null;

    @XmlElement
    private String id = null;

   ...

}

Upvotes: 0

JosefN
JosefN

Reputation: 952

The response is a Map so root element is not your ITunesGenre class but the Map.I suppose that it is clear how to modify response object.

Upvotes: 2

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