URI.resolve() will not assume anything.
Base URI normally ends with a /. Don’t know if this is the best reference,
but close:
https://tools.ietf.org/html/rfc3986#section-6.2.3
You need to check the URI RFC and its resolution algorithm.
On Wed, 4 Mar 2020 at 16.57, Erich Bremer <er...@ebremer.com> wrote:
> This also works:
>
> URI uri = new URI("http://mysite.net";);
> System.out.println(uri.resolve("/picture.jpg"));
>
> but if no trailing "/" and no leading "/" on path will yield the
> concatenated http://mysite.netpicture.jpg which then gets tossed and a
> blank node is formed.
>
> Should URI.resolve assume a "/" if no trailing nor leading "/" is present?
> - Erich
>
> On Wed, Mar 4, 2020 at 10:52 AM Erich Bremer <er...@ebremer.com> wrote:
>
> > The program works if I specify the base with a trailing slash as "
> > http://mysite.net/";
> > I ran through the code and the problem appears to be here:
> >
> >
> https://github.com/jsonld-java/jsonld-java/blob/66012db2f53b009cedeae50c83b5594b9dd05e11/core/src/main/java/com/github/jsonldjava/utils/JsonLdUrl.java#L283
> >
> > In the short code segment here, you can see:
> > URI uri = new URI("http://mysite.net";);
> > System.out.println(uri.resolve("picture.jpg"));
> >
> > Output:
> > http://mysite.netpicture.jpg
> >
> >
> > On Wed, Mar 4, 2020 at 10:05 AM Erich Bremer <er...@ebremer.com> wrote:
> >
> >> Same thing:
> >> Source JSONLD
> >> {
> >> "@context": [
> >> "http://schema.org";
> >> ],
> >> "@graph": [
> >> {
> >> "@type": "CreativeWork",
> >> "@id": "picture.jpg"
> >> },
> >> {
> >> "@id": "./",
> >> "@type": "DataSet"
> >> }
> >> ]
> >> }
> >> AFTER loading
> ============================================================
> >> Base : http://mysite.net
> >> SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
> >> SLF4J: Defaulting to no-operation (NOP) logger implementation
> >> SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for
> >> further details.
> >> [ {
> >> "@type" : [ "http://schema.org/CreativeWork"; ]
> >> }, {
> >> "@id" : "http://mysite.net";,
> >> "@type" : [ "http://schema.org/DataSet"; ]
> >> } ]
> >>
> >>
> >> CODE ====================================
> >> package com.mycompany.tesjsonld;
> >>
> >> import com.github.jsonldjava.core.JsonLdOptions;
> >> import com.github.jsonldjava.core.JsonLdProcessor;
> >> import com.github.jsonldjava.utils.JsonUtils;
> >> import java.io.ByteArrayInputStream;
> >> import java.io.FileNotFoundException;
> >> import java.io.IOException;
> >> import java.io.InputStream;
> >> import java.nio.charset.Charset;
> >>
> >> /**
> >> *
> >> * @author erich
> >> */
> >> public class tryme {
> >>
> >> public static void main(String[] args) throws FileNotFoundException,
> >> IOException {
> >> String json = "{\n" +
> >> " \"@context\": [\n" +
> >> " \"http://schema.org\"\n"; +
> >> " ],\n" +
> >> " \"@graph\": [\n" +
> >> " {\n" +
> >> " \"@type\": \"CreativeWork\",\n" +
> >> " \"@id\": \"picture.jpg\"\n" +
> >> " },\n" +
> >> " {\n" +
> >> " \"@id\": \"./\",\n" +
> >> " \"@type\": \"DataSet\"\n" +
> >> " }\n" +
> >> " ]\n" +
> >> "}";
> >>
> >> System.out.println(json);
> >>
> >>
> System.out.println("============================================================");
> >> InputStream inputStream = new
> >> ByteArrayInputStream(json.getBytes(Charset.forName("UTF-8")));
> >> Object jsonObject = JsonUtils.fromInputStream(inputStream);
> >> JsonLdOptions options = new JsonLdOptions("http://mysite.net";);
> >> System.out.println("Base : "+options.getBase());
> >> //Object compact = JsonLdProcessor.compact(jsonObject, null,
> >> options);
> >> Object compact = JsonLdProcessor.expand(jsonObject, options);
> >> System.out.println(JsonUtils.toPrettyString(compact));
> >> }
> >> }
> >>
> >> On Wed, Mar 4, 2020 at 9:44 AM Erich Bremer <er...@ebremer.com> wrote:
> >>
> >>> I will try with the other library to check.
> >>>
> >>> On Wed, Mar 4, 2020 at 4:29 AM Rob Vesse <rve...@dotnetrdf.org> wrote:
> >>>
> >>>> This may be an upstream bug or it could be a bug in how we configure
> >>>> the underlying parser
> >>>>
> >>>> Jena's JSON-LD support is based upon the
> >>>> https://github.com/jsonld-java/jsonld-java library so you could try
> >>>> and reproduce your test case just using their library directly which
> would
> >>>> determine if it is their bug or our bug
> >>>>
> >>>> Rob
> >>>>
> >>>> On 04/03/2020, 00:11, "Erich Bremer" <er...@ebremer.com> wrote:
> >>>>
> >>>> I'm trying to use a "@id": "./" in a jsonld file and in another
> >>>> triple
> >>>> "@id": "picture.jpg". The "./" will be correctly changed to the
> >>>> base URL,
> >>>> but the "@id": "picture.jpg" just gets dropped and a blank node is
> >>>> created. Below is the code segment that I used to generate this
> >>>> output:
> >>>> {
> >>>> "@context": [
> >>>> "http://schema.org";
> >>>> ],
> >>>> "@graph": [
> >>>> {
> >>>> "@type": "CreativeWork",
> >>>> "@id": "picture.jpg"
> >>>> },
> >>>> {
> >>>> "@id": "./",
> >>>> "@type": "DataSet"
> >>>> }
> >>>> ]
> >>>> }
> >>>> _:Bd42dbcf4e4ffb76e199766bf5e4c1e4b <
> >>>> http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <
> >>>> http://schema.org/CreativeWork> .
> >>>> <http://mydomain.com> <
> >>>> http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <
> >>>> http://schema.org/DataSet> .
> >>>>
> >>>> If I use https://json-ld.org/playground/ on the same jsonld, I
> get:
> >>>>
> >>>> <https://json-ld.org/playground/> <
> >>>> http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <
> >>>> http://schema.org/DataSet>
> >>>> .
> >>>> <https://json-ld.org/playground/picture.jpg> <
> >>>> http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <
> >>>> http://schema.org/CreativeWork> .
> >>>>
> >>>> which is what I expected. Am I missing something here? - Erich
> >>>>
> >>>> String json = "{\n" +
> >>>> " \"@context\": [\n" +
> >>>> " \"http://schema.org\"\n"; +
> >>>> " ],\n" +
> >>>> " \"@graph\": [\n" +
> >>>> " {\n" +
> >>>> " \"@type\": \"CreativeWork\",\n" +
> >>>> " \"@id\": \"picture.jpg\"\n" +
> >>>> " },\n" +
> >>>> " {\n" +
> >>>> " \"@id\": \"./\",\n" +
> >>>> " \"@type\": \"DataSet\"\n" +
> >>>> " }\n" +
> >>>> " ]\n" +
> >>>> "}";
> >>>> System.out.println(json);
> >>>> Model m = ModelFactory.createDefaultModel();
> >>>> InputStream inputStream = new
> >>>> ByteArrayInputStream(json.getBytes(Charset.forName("UTF-8")));
> >>>> RDFParser.create()
> >>>> .base("http://mydomain.com";)
> >>>> .source(inputStream)
> >>>> .lang(RDFLanguages.JSONLD)
> >>>> .parse(m);
> >>>> RDFDataMgr.write(System.out, m, RDFFormat.NQUADS) ;
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
>
