チェンジセット 56 : BH13SPARQLBuilder

更新日時:

2014/03/13 12:04:01 (11 年 前)

更新者:

nori

ログメッセージ:

OWLQueryBuilderImpl.listClasses を実装した

ファイル:

• BH13SPARQLBuilder/src/org/biohackathon/SPARQLBuilder/OWL/OWLQueryBuilderImpl.java (変更) (1 diff)

BH13SPARQLBuilder/src/org/biohackathon/SPARQLBuilder/OWL/OWLQueryBuilderImpl.java

@@ -255 +255 @@
 
         public SClass[] listClasses(String[] graphURIs, boolean countInstances) throws Exception{
-
-                //TODO 
-                return null;
+                StringBuffer queryStr = new StringBuffer();
+                queryStr.append("PREFIX owl: <http://www.w3.org/2002/07/owl#>\n");
+                queryStr.append("PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>\n");
+                queryStr.append("PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n");
+                if (countInstances) {
+                        queryStr.append("SELECT DISTINCT ?cls ?pLabel (COUNT(?i) AS ?numOfInstances)\n");
+                } else {
+                        queryStr.append("SELECT DISTINCT ?cls ?pLabel \n");
+                }
+
+                if (graphURIs != null) {
+                        for (String graphURI : graphURIs) {
+                                queryStr.append("FROM <");
+                                queryStr.append(graphURI);
+                                queryStr.append(">\n");
+                        }
+                }
+                queryStr.append("WHERE{\n");
+                queryStr.append("\t{ ?cls rdf:type rdfs:Class. }\n");
+                queryStr.append("\tUNION\n");
+                queryStr.append("\t{ ?cls rdf:type owl:Class. }\n");
+                queryStr.append("\tUNION\n");
+                queryStr.append("\t{ [] rdfs:domain ?cls. }\n");
+                queryStr.append("\tUNION\n");
+                queryStr.append("\t{ [] rdfs:range ?cls. }\n");
+                queryStr.append("\tUNION\n");
+                queryStr.append("\t{ ?cls rdfs:subclassOf []. }\n");
+                queryStr.append("\t?cls rdfs:label ?pLabel.\n");
+                if (countInstances) {
+                        queryStr.append("\t?i rdf:type ?c.\n");
+                }
+                if (countInstances) {
+                        queryStr.append("}  GROUP BY ?c ?pLabel");
+                } else {
+                        queryStr.append("}");
+                }
+                System.out.println(queryStr.toString());
+
+                Query query = QueryFactory.create(queryStr.toString());
+
+                
+                QueryExecution qexec = null;
+                try{
+                        long start = System.currentTimeMillis();
+                        qexec = QueryExecutionFactory.sparqlService(endpointURI,
+                                        query);
+                        long end = System.currentTimeMillis();
+                        System.out.println("EXEC TIME: " + (end-start));
+                }catch(Exception ex){
+                        ex.printStackTrace();
+                        throw ex;
+                }
+
+                ResultSet results = qexec.execSelect();
+                HashMap<String, SClass> classMap = new HashMap<String, SClass>();
+                for (; results.hasNext();) {
+                        QuerySolution sol = results.next();
+                        Resource res = sol.getResource("c");
+                        if (res != null) {
+                                String uri = res.getURI();
+                                int numOfInstances = 0;
+                                if (countInstances) {
+                                        numOfInstances = sol.getLiteral("numOfInstances").getInt();
+                                }
+                                // System.out.println(numOfInstances);
+                                Literal labelLiteral = sol.getLiteral("pLabel");
+                                SClass sClass = null;
+                                if (classMap.containsKey(uri)) {
+                                        sClass = classMap.get(uri);
+                                } else {
+                                        sClass = new SClass(uri, null, numOfInstances);
+                                        classMap.put(uri, sClass);
+                                }
+                                if (labelLiteral != null) {
+                                        String label = labelLiteral.getString();
+                                        String lang = labelLiteral.getLanguage();
+                                        sClass.addLabel(new Label(label, lang));
+                                }
+                        }
+                }
+                qexec.close();
+                return classMap.values().toArray(new SClass[0]);
         }