listQSARDescriptorCategories.js

var owl = rdf.createStore();
rdf.importURL(owl,
  "file:///home/egonw/var/Projects/SourceForge/git-svn/qsar/qsar-dicts/" +
  "descriptor-algorithms.owl"
);
js.clear();

// list all descriptor categories
var cats = rdf.sparql(owl,
  "PREFIX qsar: <http://www.blueobelisk.org/ontologies/chemoinformatics-algorithms/#> " +
  "PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> " +
  "SELECT ?id ?label ?definition WHERE { " +
  "  ?id qsar:isClassifiedAs qsar:descriptorCategories; " +
  "      rdfs:label ?label; " +
  "      qsar:definition ?definition. " +
  "}"
);
// iterate over all categories child of the category 'descriptorCategories'
for (var i=0; i<cats.size(); i++) {
  var cat = cats.get(i);
  // the next follows the ?id ?label ?definition order in the SPARQL
  var identifier = cat.get(0);
  var label = cat.get(1);
  var definition = cat.get(2);
  js.print("Category: " + label + "\n");
  // list of descriptors for this category; it takes advantage from the fact
  // that the identifier is namespace prefix, and we use the same here
  var sparql = 
    "PREFIX qsar: <http://www.blueobelisk.org/ontologies/chemoinformatics-algorithms/#> " +
    "PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> " +
    "SELECT ?s ?label WHERE { " + 
    "  ?s ?p " + identifier + ";" +
    "     rdfs:label ?label." +
    "}";
  var descriptors = rdf.sparql(owl, sparql);
  if (descriptors != null) {
    for (var j=0; j<descriptors.size(); j++) {
      var descriptor = descriptors.get(j);
      var descriptorID = descriptor.get(0);
      var label = descriptor.get(1);
      js.print("  " + descriptorID + " = " + label + "\n");
    }
  }
}