p2m2 / facade-scalajs-n3.js

ScalaJS facade to build N3.js application

facade-scalajs-N3.js

Scala.js Facade of the N3.js library

Install

libraryDependencies += "com.github.p2m2" %%% "n3js" % "v1.17.2",

N3.Parser

new N3.Parser(js.Dynamic.literal(baseIRI="http://example.org/",format="Turtle"))
.parse(
"""
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix ex: <http://example.org/stuff/1.0/> .
@prefix :<http://test#> .

<http://www.w3.org/TR/rdf-syntax-grammar>
dc:title "RDF/XML Syntax Specification (Revised)" ;
ex:editor [
ex:fullname "Dave Beckett";
ex:homePage <http://purl.org/net/dajobe/>
] .
:hello1 :hello2 :hello3 .
""".stripMargin)
}

N3.Writer

val writer = new N3.Writer(
        js.Dynamic.literal(
          prefixes=js.Dynamic.literal(
            c="http://example.org/cartoons#",
            foaf="http://xmlns.com/foaf/0.1/"
          )))

      writer.addQuad(
        writer.blank(
          DataFactory.namedNode("http://xmlns.com/foaf/0.1/givenName"),
            DataFactory.literal("Tom", "en")),
          DataFactory.namedNode("http://www.w3.org/1999/02/22-rdf-syntax-ns#type"),
            DataFactory.namedNode("http://example.org/cartoons#Cat")
      )

      writer.addQuad(DataFactory.quad(
        DataFactory.namedNode("http://example.org/cartoons#Jerry"),
          DataFactory.namedNode("http://xmlns.com/foaf/0.1/knows"),
          writer.blank(Seq(js.Dynamic.literal(
          predicate=DataFactory.namedNode("http://www.w3.org/1999/02/22-rdf-syntax-ns#type"),
            `object`= DataFactory.namedNode("http://example.org/cartoons#Cat"),
          ),js.Dynamic.literal(
          predicate= DataFactory.namedNode("http://xmlns.com/foaf/0.1/givenName"),
            `object`=    DataFactory.literal("Tom", "en"),
        )).toJSArray)
      ))

      writer.addQuad(
        DataFactory.namedNode("http://example.org/cartoons#Mammy"),
          DataFactory.namedNode("http://example.org/cartoons#hasPets"),
          writer.list(Seq(
          DataFactory.namedNode("http://example.org/cartoons#Tom"),
          DataFactory.namedNode("http://example.org/cartoons#Jerry"),
          ).toJSArray)
      );
      writer.end((error, result) => println(result));

N3.Store

val store = new N3.Store();
      store.addQuad(
        (DataFactory.namedNode("http://ex.org/Pluto"),
          DataFactory.namedNode("http://ex.org/type"),
          DataFactory.namedNode("http://ex.org/Dog")
        ))
      store.addQuad(
        DataFactory.namedNode(s1),
          DataFactory.namedNode(p1),
          DataFactory.namedNode(o1)
        );

      val mickey = store.getQuads(DataFactory.namedNode("http://ex.org/Mickey"), null, null)

Note :

• N3.js Examples are implemented in the test directory