| 257 | | StringBuffer queryStr = new StringBuffer(); |
| 258 | | queryStr.append("PREFIX owl: <http://www.w3.org/2002/07/owl#>\n"); |
| 259 | | queryStr.append("PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>\n"); |
| 260 | | queryStr.append("PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n"); |
| 261 | | if (countInstances) { |
| 262 | | queryStr.append("SELECT DISTINCT ?cls ?pLabel (COUNT(?i) AS ?numOfInstances)\n"); |
| 263 | | } else { |
| 264 | | queryStr.append("SELECT DISTINCT ?cls ?pLabel \n"); |
| 265 | | } |
| 266 | | |
| 267 | | if (graphURIs != null) { |
| 268 | | for (String graphURI : graphURIs) { |
| 269 | | queryStr.append("FROM <"); |
| 270 | | queryStr.append(graphURI); |
| 271 | | queryStr.append(">\n"); |
| 272 | | } |
| 273 | | } |
| 274 | | queryStr.append("WHERE{\n"); |
| 275 | | queryStr.append("\t{ ?cls rdf:type rdfs:Class. }\n"); |
| 276 | | queryStr.append("\tUNION\n"); |
| 277 | | queryStr.append("\t{ ?cls rdf:type owl:Class. }\n"); |
| 278 | | queryStr.append("\tUNION\n"); |
| 279 | | queryStr.append("\t{ [] rdfs:type ?cls. }\n"); |
| 280 | | queryStr.append("\tUNION\n"); |
| 281 | | queryStr.append("\t{ [] rdfs:domain ?cls. }\n"); |
| 282 | | queryStr.append("\tUNION\n"); |
| 283 | | queryStr.append("\t{ [] rdfs:range ?cls. }\n"); |
| 284 | | queryStr.append("\tUNION\n"); |
| 285 | | queryStr.append("\t{ ?cls rdfs:subclassOf []. }\n"); |
| 286 | | queryStr.append("\t?cls rdfs:label ?pLabel.\n"); |
| 287 | | if (countInstances) { |
| 288 | | queryStr.append("\t?i rdf:type ?c.\n"); |
| 289 | | } |
| 290 | | if (countInstances) { |
| 291 | | queryStr.append("} GROUP BY ?c ?pLabel"); |
| 292 | | } else { |
| 293 | | queryStr.append("}"); |
| 294 | | } |
| 295 | | System.out.println(queryStr.toString()); |
| 296 | | |
| 297 | | Query query = QueryFactory.create(queryStr.toString()); |
| 298 | | |
| 299 | | |
| 300 | | QueryExecution qexec = null; |
| 301 | | try{ |
| 302 | | long start = System.currentTimeMillis(); |
| 303 | | qexec = QueryExecutionFactory.sparqlService(endpointURI, |
| 304 | | query); |
| 305 | | long end = System.currentTimeMillis(); |
| 306 | | System.out.println("EXEC TIME: " + (end-start)); |
| 307 | | }catch(Exception ex){ |
| 308 | | ex.printStackTrace(); |
| 309 | | throw ex; |
| 310 | | } |
| 311 | | |
| 312 | | ResultSet results = qexec.execSelect(); |
| 313 | | HashMap<String, SClass> classMap = new HashMap<String, SClass>(); |
| 314 | | for (; results.hasNext();) { |
| 315 | | QuerySolution sol = results.next(); |
| 316 | | Resource res = sol.getResource("c"); |
| 317 | | if (res != null) { |
| 318 | | String uri = res.getURI(); |
| 319 | | int numOfInstances = 0; |
| 320 | | if (countInstances) { |
| 321 | | numOfInstances = sol.getLiteral("numOfInstances").getInt(); |
| 322 | | } |
| 323 | | // System.out.println(numOfInstances); |
| 324 | | Literal labelLiteral = sol.getLiteral("pLabel"); |
| 325 | | SClass sClass = null; |
| 326 | | if (classMap.containsKey(uri)) { |
| 327 | | sClass = classMap.get(uri); |
| 328 | | } else { |
| 329 | | sClass = new SClass(uri, null, numOfInstances); |
| 330 | | classMap.put(uri, sClass); |
| 331 | | } |
| 332 | | if (labelLiteral != null) { |
| 333 | | String label = labelLiteral.getString(); |
| 334 | | String lang = labelLiteral.getLanguage(); |
| 335 | | sClass.addLabel(new Label(label, lang)); |
| 336 | | } |
| 337 | | } |
| 338 | | } |
| 339 | | qexec.close(); |
| 340 | | return classMap.values().toArray(new SClass[0]); |
| | 270 | |
| | 271 | //TODO |
| | 272 | return null; |