[Vala] De/serializing Classes into Json

[Johann Weging <johann weging net>]

Hello,

I'm trying to de/serialize a Vala class into Json with the glib-json-1.0 module.
A class like:

public class testClass : GLib.Object {
  public int i{get;set;}
  public int[] array {get;set;}
}

After setting some values the class should be serialized into:

{
  i : 1,
  array : [1,2,3]
}

What I tried so far:

Using the "object_to_data" and "object_from_data" function of glib-josn.

The problem is, that this function seems to skip arrays.
The array is not returned by "list_properties" function of the "ObjectClass" class. Furthermore the two 
function store the properties without its name. The result actually looks like:

{
  i : 1
}

I have tried to marshal the class myself, that's how I noticed arrays are not returned by "list_properties".

I tried to add support for array by using the "get_data" function of the "GLib.Object". This function doesn't 
return data. Used it like this:

// build class and set values:

int j = testclass.get_data("i");
int j = testclass.get_data<int>("i");

I don't want to reimplement the array marshaling for every new class I build.

Is there any nice way to marshal array into json with a function that looks something like this:

array_to_data(Type baseType, array, [maybe add needed extraflags]);

or even integrate it into "Json.object_to_data()" and "Json.object_from_data()".

So long,
Johann