Mercurial > repos > mikel-egana-aranguren > sadi_generic

comparison src/info/wilkinsonlab/sadi/galaxy/RDFSyntaxConverter.java @ 2:977c838e3442 draft default tip

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New dir structure, README improved, tests added and RDF merge tool created
author mikel-egana-aranguren <mikel.egana.aranguren@gmail.com>
date Fri, 25 Apr 2014 14:41:12 +0200
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1:bb17b69a74c5 2:977c838e3442
1 package info.wilkinsonlab.sadi.galaxy;
2
3 import java.io.InputStream;
4
5 import com.hp.hpl.jena.query.Query;
6 import com.hp.hpl.jena.query.QueryExecution;
7 import com.hp.hpl.jena.query.QueryExecutionFactory;
8 import com.hp.hpl.jena.query.QueryFactory;
9 import com.hp.hpl.jena.query.QuerySolution;
10 import com.hp.hpl.jena.query.ResultSet;
11 import com.hp.hpl.jena.rdf.model.Model;
12 import com.hp.hpl.jena.rdf.model.ModelFactory;
13 import com.hp.hpl.jena.util.FileManager;
14
15 public class RDFSyntaxConverter {
16
17 /**
18 * @param input RDF
19 * @param format one of N3, N-TRIPLE, TAB
20 *
21 */
22 public static void main(String[] args) {
23 String input_RDF_path = args[0];
24 String format = args[1];
25 Model model = ModelFactory.createOntologyModel();
26 InputStream in = FileManager.get().open(input_RDF_path);
27 model.read(in, null);
28
29 if (format.equals("TAB")) {
30 String queryString = "SELECT * WHERE { ?s ?p ?o } ";
31 Query query = QueryFactory.create(queryString);
32 QueryExecution qe = QueryExecutionFactory.create(query, model);
33 try {
34 ResultSet rs = qe.execSelect();
35 System.out.println("Subject\tPredicate\tObject\n");
36 while (rs.hasNext()) {
37 QuerySolution row = rs.nextSolution();
38 System.out.println(row.get("s") + "\t" + row.get("p")
39 + "\t" + row.get("o") + "\n");
40 }
41 } finally {
42 qe.close();
43 }
44 } else {
45 model.write(System.out, format);
46 }
47 }
48 }