Do you know where jsonld discussions are at?
I'm having trouble finding a mailing list.
________________________________________
From: Andy Seaborne <a...@apache.org>
Sent: Thursday, January 4, 2018 2:34 PM
To: dev@jena.apache.org
Subject: Re: JsonLD @vocab
Adam,
In the first instance, this seems like something to raise with the
jsonld-java team to find out if that is intentional. Could you open a
discussion issue there?
IIRC empty prefix and the base are mixed up in JSON-LD.
Andy
On 04/01/18 03:34, Adam Jacobs wrote:
> The @vocab prefix is dropped by Jena when parsing JsonLD.
> An empty prefix is correctly translated into @vocab during serialization, but
> is lost during deserialization.
> Below code demonstrates the point.
>
> public static void main(String... args) {
> String base = "http://www.ns.com/base/";;
> String prefix = "http://www.ns.com/prefix/";;
>
> Model m = ModelFactory.createDefaultModel();
> m.setNsPrefix("", base);
> m.setNsPrefix("prefix", prefix);
>
> m.add(m.createResource(base + "foo"), m.createProperty(prefix +
> "bar"), m.createResource(base + "baz"));
> String jsonLD = serializeJsonLD(m);
> System.out.println(jsonLD);
>
> InputStream in = new ByteArrayInputStream(jsonLD.getBytes());
> Model m2 = ModelFactory.createDefaultModel().read(in, null,
> "jsonld");
> System.out.println(serializeJsonLD(m2));
> }
>
> public static String serializeJsonLD(Model m) {
> OutputStream out = new ByteArrayOutputStream();
> m.write(out, "jsonld");
> return out.toString();
> }
>
> From what I can see, jsonld-java is intentionally ignoring the @vocab key at
> line 277 of Context.java.
>
> https://github.com/jsonld-java/jsonld-java/blob/master/core/src/main/java/com/github/jsonldjava/core/Context.java
>
> I'm not sure if this is a bug in jsonld-java, or intentional behavior from a
> jsonld perspective that Jena should work around e.g. in JsonLDReader?
>
