Package org.semanticweb.yars.nx

Examples of org.semanticweb.yars.nx.Resource


  public Triple nextTriple() throws IOException {
    if (!it.hasNext()) return null;

    Node[] next = it.next();

    Resource subject = (Resource)next[0];
    Resource predicate = (Resource)next[1];
    Node object = next[2];
   
    // WARNING: Don't clean up the subject yet ! We must only do it *after* the merge, else
    // The merge won't be made in the same order as the Unix sort

    // Clean the predicate
    predicate = new Resource(URLDecoder.decode(predicate.toN3(), "utf8"));

    //    System.out.println("************************************");
    //    for (Node n : narray) {
    //      System.out.println(n.getClass()  + " --- " + n.toN3());
    //    }

    //    System.out.println("S=" + subject.toN3() + " P=" + predicate.toN3());

    if (object instanceof Literal) {
      Literal value = (Literal)object;
      // Resolve the \\u0FF.. stuff
      String cleanData = value.getUnescapedData();

      try {
        cleanData = URLDecoder.decode(cleanData, "utf8");
      } catch (IllegalArgumentException e) {}

      if (value.getDatatype() == null) {
        return new DataTriple(subject.toN3(), predicate.toN3(), cleanData, value.getLanguageTag());
      } else if (value.getDatatype().toN3().equals("<http://www.w3.org/2001/XMLSchema#double>")) {
        return new DataTriple(subject.toN3(), predicate.toN3(), Double.parseDouble(value.getData()));
      } else  {
        return new DataTriple(subject.toN3(), predicate.toN3(), cleanData, null);
      }


    } else {
      Resource value = (Resource)object;
      //      System.out.println("OBJ " + value.toN3());
      return new LinkTriple(subject.toN3(), predicate.toN3(), value.toN3());
    }
  }
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